Danach render sie ganz normal.
dcb “INIT“
dcb “MAIN“
dcb “INIT“
RTL
dcb “MAIN“
RTL
dcb “INIT“
RTL
dcb “MAIN“
STZ $0DBF ; setzt Mario Münzen auf 0 (siehe RAM Map)
RTL
dcb “INIT“
RTL
dcb “MAIN“
LDA $0DBF ; Lade Marios Münzen
CMP #10 ; Hat Mario mehr als 10 Münzen?
BCC Return ; Nein? Springe zum Label Return
LDA #$02 ; Ja? Lade eine Feder
STA $19 ; Speicher die Feder als Marios PowerUp
Return: ; das Label Return
RTL
03
FF
FF FF FF FF FF FF
FF FF
generic.asm
03
FF
FF FF FF FF FF FF
FF FF
Beispiel.asm
dcb “INIT“
RTL
dcb “MAIN“
LDA $0DBF
CMP #10
BCC Return
LDA #$02
STA $19
Return:
RTL
LDA #$02 ; A ist 02
PHA ; Wert von A auf den Stack speichern
LDA #$FF ; A ist FF
PLA ; Wert vom Stack zurückholen und in A speichern, A ist wieder 02
RTS
LDA #$02 ; A ist 02
PHA ; Wert von A auf den Stack speichern
LDA #$03 ; A ist 03
PHA ; Wert von A auf den Stack speichern
LDA #$04 ; A ist 04
PLA ; Obersten Wert vom Stack in A speichern, A ist 03
PLA ; Obersten Wert vom Stack in A speichern, A ist 02
RTS
LDA #$05 ; A ist 05
LDX #$09 ; X ist 09
PHA ; Wert von A auf den Stack speichern
PLX ; Wert vom Stack zurückholen und in X speichern, X ist 05
RTS
dcb “INIT“
RTL
dcb “MAIN“
RTL
dcb “INIT“
RTL
dcb “MAIN“
JSR Graphics ; Wir springen zum Label Graphics (auf Englisch da Standart)
RTL
Graphics: ; Hier ist unser Graphics Label, noch ohne Grafiken
dcb “INIT“
RTL
dcb “MAIN“
JSR Graphics ; Wir springen zum Label Graphics (auf Englisch da Standart)
RTL
Graphics: ; Hier ist unser Graphics Label, noch ohne Grafiken
JSR GET_DRAW_INFO
dcb “INIT“
RTL
dcb “MAIN“
JSR Graphics ; Wir springen zum Label Graphics (auf Englisch da Standart)
RTL
Graphics: ; Hier ist unser Graphics Label
JSR GET_DRAW_INFO
RTS
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; GET_DRAW_INFO
; This is a helper for the graphics routine. It sets off screen flags, and sets up
; variables. It will return with the following:
;
; Y = index to sprite OAM ($300)
; $00 = sprite x position relative to screen boarder
; $01 = sprite y position relative to screen boarder
;
; It is adapted from the subroutine at $03B760
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T1 dcb $0C,$1C
SPR_T2 dcb $01,$02
GET_DRAW_INFO STZ $186C,x ; reset sprite offscreen flag, vertical
STZ $15A0,x ; reset sprite offscreen flag, horizontal
LDA $E4,x ; \
CMP $1A ; | set horizontal offscreen if necessary
LDA $14E0,x ; |
SBC $1B ; |
BEQ ON_SCREEN_X ; |
INC $15A0,x ; /
ON_SCREEN_X LDA $14E0,x ; \
XBA ; |
LDA $E4,x ; |
REP #$20 ; |
SEC ; |
SBC $1A ; | mark sprite invalid if far enough off screen
CLC ; |
ADC.W #$0040 ; |
CMP.W #$0180 ; |
SEP #$20 ; |
ROL A ; |
AND #$01 ; |
STA $15C4,x ; /
BNE INVALID ;
LDY #$00 ; \ set up loop:
LDA $1662,x ; |
AND #$20 ; | if not smushed (1662 & 0x20), go through loop twice
BEQ ON_SCREEN_LOOP ; | else, go through loop once
INY ; /
ON_SCREEN_LOOP LDA $D8,x ; \
CLC ; | set vertical offscreen if necessary
ADC SPR_T1,y ; |
PHP ; |
CMP $1C ; | (vert screen boundry)
ROL $00 ; |
PLP ; |
LDA $14D4,x ; |
ADC #$00 ; |
LSR $00 ; |
SBC $1D ; |
BEQ ON_SCREEN_Y ; |
LDA $186C,x ; | (vert offscreen)
ORA SPR_T2,y ; |
STA $186C,x ; |
ON_SCREEN_Y DEY ; |
BPL ON_SCREEN_LOOP ; /
LDY $15EA,x ; get offset to sprite OAM
LDA $E4,x ; \
SEC ; |
SBC $1A ; | $00 = sprite x position relative to screen boarder
STA $00 ; /
LDA $D8,x ; \
SEC ; |
SBC $1C ; | $01 = sprite y position relative to screen boarder
STA $01 ; /
RTS ; return
INVALID PLA ; \ return from *main gfx routine* subroutine...
PLA ; | ...(not just this subroutine)
RTS ; /
; =========================
; GRAPHICS ROUTINE HERE
; =========================
LDA $00
STA $0300,y ; die OAM beginnt bei $0300
LDA $01
STA $0301,y ; erster Wert der OAM voll, eins weiter
LDA $00
STA $0300,y ; die OAM beginnt bei $0300
LDA $01
STA $0301,y ; erster Wert der OAM voll, eins weiter
LDA #$24 ; Wir laden den Wert (#!) unseres Teils
STA $0302,y ; zweiter Wert der OAM voll
LDA #%00000110
ORA $64
STA $0303,y
LDA #$88 ; in binär 10001000
AND #$C6 ; in binär 11000100
LDA $13 ; Laden der animation frame Nummer
AND #$03 ; Vergleichen von A mit dem binär Wert 00000011. Hier haben wir nun die
; Möglichkeit von 4 Ergebnissen (4 PowerUpstatuse) Nämlich 00000000, 00000001,
; 00000010, 00000011. Ich hoffe es ist klar warum diese 4. So erhalten wir nun
; zufällig eine Hex-Zahl zwischen 00 und 03 (die PowerUp Zahlen)
STA $19 ; Speichern in Marios PowerUp
RTS ; Codeende
LDA #%00000110
ORA $64
STA $0303,y
LDA #$06 ;hier wurde die binär Zahl einfach in eine Hexadezimalzahl umgewandelt.
ORA $64
STA $0303,y
PHX ; nur nötig, wenn man X noch für etwas anderes in der Grafikroutine benutzt
LDX $15E9
LDA $15F6,x
PLX ; wieder nur nötig, wenn X für etwas anderes in der Grafikroutine benutzt wird
ORA $64
STA $0303,y
LDY #$02
LDA #$00
JSL $01B7B3
dcb "INIT"
RTL
dcb "MAIN"
JSR Graphics ; This routine controls graphics.
RTL ; After the graphics routine is over, return.
Graphics:
JSR GET_DRAW_INFO ; Before actually coding the graphics, we need a routine that will get the current sprite's value
; into the OAM.
; The OAM being a place where the tile data for the current sprite will be stored.
LDA $00 ;\
STA $0300,y ;/ Draw the X position of the sprite
LDA $01 ;\
STA $0301,y ;/ Draw the Y position of the sprite
;Those 2 above are always needed to figure out the X/Y position of the sprite
LDA #$24 ;\
STA $0302,y ;/ Tile to draw. This is currently tile 24.
; NOTE: The tile is the upper-left tile of the 16x16 tile you want to draw
LDA #$06
ORA $64
STA $0303,y ; Write the YXPPCCCT property byte of the sprite
; See this part of the tutorial again for more info
INY ;\
INY ; | The OAM is 8x8, but our sprite is 16x16 ..
INY ; | So increment it 4 times.
INY ;/
LDY #$02 ; Y ends with the tile size .. 02 means it's 16x16
LDA #$00 ; A -> number of tiles drawn - 1.
; I drew only 1 tile so I put in 1-1 = 00.
JSL $01B7B3 ; Call the routine that draws the sprite.
RTS ; Never forget this!
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; GET_DRAW_INFO
; This is a helper for the graphics routine. It sets off screen flags, and sets up
; variables. It will return with the following:
;
; Y = index to sprite OAM ($300)
; $00 = sprite x position relative to screen boarder
; $01 = sprite y position relative to screen boarder
;
; It is adapted from the subroutine at $03B760
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T1 dcb $0C,$1C
SPR_T2 dcb $01,$02
GET_DRAW_INFO STZ $186C,x ; reset sprite offscreen flag, vertical
STZ $15A0,x ; reset sprite offscreen flag, horizontal
LDA $E4,x ; \
CMP $1A ; | set horizontal offscreen if necessary
LDA $14E0,x ; |
SBC $1B ; |
BEQ ON_SCREEN_X ; |
INC $15A0,x ; /
ON_SCREEN_X LDA $14E0,x ; \
XBA ; |
LDA $E4,x ; |
REP #$20 ; |
SEC ; |
SBC $1A ; | mark sprite invalid if far enough off screen
CLC ; |
ADC.W #$0040 ; |
CMP.W #$0180 ; |
SEP #$20 ; |
ROL A ; |
AND #$01 ; |
STA $15C4,x ; /
BNE INVALID ;
LDY #$00 ; \ set up loop:
LDA $1662,x ; |
AND #$20 ; | if not smushed (1662 & 0x20), go through loop twice
BEQ ON_SCREEN_LOOP ; | else, go through loop once
INY ; /
ON_SCREEN_LOOP LDA $D8,x ; \
CLC ; | set vertical offscreen if necessary
ADC SPR_T1,y ; |
PHP ; |
CMP $1C ; | (vert screen boundry)
ROL $00 ; |
PLP ; |
LDA $14D4,x ; |
ADC #$00 ; |
LSR $00 ; |
SBC $1D ; |
BEQ ON_SCREEN_Y ; |
LDA $186C,x ; | (vert offscreen)
ORA SPR_T2,y ; |
STA $186C,x ; |
ON_SCREEN_Y DEY ; |
BPL ON_SCREEN_LOOP ; /
LDY $15EA,x ; get offset to sprite OAM
LDA $E4,x ; \
SEC ; |
SBC $1A ; | $00 = sprite x position relative to screen boarder
STA $00 ; /
LDA $D8,x ; \
SEC ; |
SBC $1C ; | $01 = sprite y position relative to screen boarder
STA $01 ; /
RTS ; return
INVALID PLA ; \ return from *main gfx routine* subroutine...
PLA ; | ...(not just this subroutine)
RTS ; /
JSL $01A7DC
BBC Kein Kontakt ; im Original anders benannt
KeinKontakt:
RTL
LDA #10 ; 10 Münzen
STA $13CC
LDA #$01 ; Irgendein Soundeffekt
STA $1DFC
LDA #$00
STZ $14C8,x ; hier ginge auch STA, dies wäre aber langsamer
dcb "INIT"
RTL
dcb "MAIN"
JSR Graphics ; This routine controls graphics.
JSL $01A7DC ; Check for Mario/sprite contact ..
BCC NoContact ; Return if there isn't.
;===================================
;Mario Contact
;===================================
LDA #10 ;\
STA $13CC ; | 10 coins.
LDA #$01 ; |
STA $1DF9 ;/ Play sound.
STZ $14C8,x ; Sprite status = 00 = non-existant. This makes the sprite erase itself.
; No need for an RTL because we wrote it below.
;===================================
;No Contact
;===================================
NoContact:
RTL ; After the graphics routine is over, return.
;===================================
;Graphics Code
;===================================
Graphics:
JSR GET_DRAW_INFO ; Before actually coding the graphics, we need a routine that will get the current sprite's value
; into the OAM.
; The OAM being a place where the tile data for the current sprite will be stored.
LDA $00 ;\
STA $0300,y ;/ Draw the X position of the sprite
LDA $01 ;\
STA $0301,y ;/ Draw the Y position of the sprite
;Those 2 above are always needed to figure out the X/Y position of the sprite
LDA #$24 ;\
ORA $64
STA $0302,y ;/ Tile to draw. This is currently tile 24.
; NOTE: The tile is the upper-left tile of the 16x16 tile you want to draw
LDA #$06
STA $0303,y ; Write the YXPPCCCT property byte of the sprite
; See this part of the tutorial again for more info
INY ;\
INY ; | The OAM is 8x8, but our sprite is 16x16 ..
INY ; | So increment it 4 times.
INY ;/
LDY #$02 ; Y ends with the tile size .. 02 means it's 16x16
LDA #$00 ; A -> number of tiles drawn - 1.
; I drew only 1 tile so I put in 1-1 = 00.
JSL $01B7B3 ; Call the routine that draws the sprite.
RTS ; Never forget this!
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; GET_DRAW_INFO
; This is a helper for the graphics routine. It sets off screen flags, and sets up
; variables. It will return with the following:
;
; Y = index to sprite OAM ($300)
; $00 = sprite x position relative to screen boarder
; $01 = sprite y position relative to screen boarder
;
; It is adapted from the subroutine at $03B760
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T1 dcb $0C,$1C
SPR_T2 dcb $01,$02
GET_DRAW_INFO STZ $186C,x ; reset sprite offscreen flag, vertical
STZ $15A0,x ; reset sprite offscreen flag, horizontal
LDA $E4,x ; \
CMP $1A ; | set horizontal offscreen if necessary
LDA $14E0,x ; |
SBC $1B ; |
BEQ ON_SCREEN_X ; |
INC $15A0,x ; /
ON_SCREEN_X LDA $14E0,x ; \
XBA ; |
LDA $E4,x ; |
REP #$20 ; |
SEC ; |
SBC $1A ; | mark sprite invalid if far enough off screen
CLC ; |
ADC.W #$0040 ; |
CMP.W #$0180 ; |
SEP #$20 ; |
ROL A ; |
AND #$01 ; |
STA $15C4,x ; /
BNE INVALID ;
LDY #$00 ; \ set up loop:
LDA $1662,x ; |
AND #$20 ; | if not smushed (1662 & 0x20), go through loop twice
BEQ ON_SCREEN_LOOP ; | else, go through loop once
INY ; /
ON_SCREEN_LOOP LDA $D8,x ; \
CLC ; | set vertical offscreen if necessary
ADC SPR_T1,y ; |
PHP ; |
CMP $1C ; | (vert screen boundry)
ROL $00 ; |
PLP ; |
LDA $14D4,x ; |
ADC #$00 ; |
LSR $00 ; |
SBC $1D ; |
BEQ ON_SCREEN_Y ; |
LDA $186C,x ; | (vert offscreen)
ORA SPR_T2,y ; |
STA $186C,x ; |
ON_SCREEN_Y DEY ; |
BPL ON_SCREEN_LOOP ; /
LDY $15EA,x ; get offset to sprite OAM
LDA $E4,x ; \
SEC ; |
SBC $1A ; | $00 = sprite x position relative to screen boarder
STA $00 ; /
LDA $D8,x ; \
SEC ; |
SBC $1C ; | $01 = sprite y position relative to screen boarder
STA $01 ; /
RTS ; return
INVALID PLA ; \ return from *main gfx routine* subroutine...
PLA ; | ...(not just this subroutine)
RTS ; /
dcb “MAIN“
JSR SpriteCode
RTL
SpriteCode:
JSR Graphics
; Rest des Codes
PHB
PHK
PLB
JSR SpriteCode
PLB
RTL
dcb "INIT"
RTL
dcb "MAIN"
PHB ;\
PHK ; | Change the data bank to the one our code is running from.
PLB ; | This is a good practice.
JSR SpriteCode ; | Jump to the sprite's function.
PLB ; | Restore old data bank.
RTL ;/ And return.
;===================================
;Sprite Function
;===================================
SpriteCode:
JSR Graphics ; This routine controls graphics.
JSL $01A7DC ; Check for Mario/sprite contact ..
BCC NoContact ; Return if there isn't.
;===================================
;Mario Contact
;===================================
LDA #10 ;\
STA $13CC ; | 10 coins.
LDA #$01 ; |
STA $1DF9 ;/ Play sound.
STZ $14C8,x ; Sprite status = 00 = non-existant. This makes the sprite erase itself.
; No need for an RTL because we wrote it below.
;===================================
;No Contact
;===================================
NoContact:
RTS ; After the graphics routine is over, return.
;===================================
;Graphics Code
;===================================
Graphics:
JSR GET_DRAW_INFO ; Before actually coding the graphics, we need a routine that will get the current sprite's value
; into the OAM.
; The OAM being a place where the tile data for the current sprite will be stored.
LDA $00 ;\
STA $0300,y ;/ Draw the X position of the sprite
LDA $01 ;\
STA $0301,y ;/ Draw the Y position of the sprite
;Those 2 above are always needed to figure out the X/Y position of the sprite
LDA #$24 ;\
STA $0302,y ;/ Tile to draw. This is currently tile 24.
; NOTE: The tile is the upper-left tile of the 16x16 tile you want to draw
LDA #$06
ORA $64
STA $0303,y ; Write the YXPPCCCT property byte of the sprite
; See this part of the tutorial again for more info
INY ;\
INY ; | The OAM is 8x8, but our sprite is 16x16 ..
INY ; | So increment it 4 times.
INY ;/
LDY #$02 ; Y ends with the tile size .. 02 means it's 16x16
LDA #$00 ; A -> number of tiles drawn - 1.
; I drew only 1 tile so I put in 1-1 = 00.
JSL $01B7B3 ; Call the routine that draws the sprite.
RTS ; Never forget this!
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; GET_DRAW_INFO
; This is a helper for the graphics routine. It sets off screen flags, and sets up
; variables. It will return with the following:
;
; Y = index to sprite OAM ($300)
; $00 = sprite x position relative to screen boarder
; $01 = sprite y position relative to screen boarder
;
; It is adapted from the subroutine at $03B760
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T1 dcb $0C,$1C
SPR_T2 dcb $01,$02
GET_DRAW_INFO STZ $186C,x ; reset sprite offscreen flag, vertical
STZ $15A0,x ; reset sprite offscreen flag, horizontal
LDA $E4,x ; \
CMP $1A ; | set horizontal offscreen if necessary
LDA $14E0,x ; |
SBC $1B ; |
BEQ ON_SCREEN_X ; |
INC $15A0,x ; /
ON_SCREEN_X LDA $14E0,x ; \
XBA ; |
LDA $E4,x ; |
REP #$20 ; |
SEC ; |
SBC $1A ; | mark sprite invalid if far enough off screen
CLC ; |
ADC.W #$0040 ; |
CMP.W #$0180 ; |
SEP #$20 ; |
ROL A ; |
AND #$01 ; |
STA $15C4,x ; /
BNE INVALID ;
LDY #$00 ; \ set up loop:
LDA $1662,x ; |
AND #$20 ; | if not smushed (1662 & 0x20), go through loop twice
BEQ ON_SCREEN_LOOP ; | else, go through loop once
INY ; /
ON_SCREEN_LOOP LDA $D8,x ; \
CLC ; | set vertical offscreen if necessary
ADC SPR_T1,y ; |
PHP ; |
CMP $1C ; | (vert screen boundry)
ROL $00 ; |
PLP ; |
LDA $14D4,x ; |
ADC #$00 ; |
LSR $00 ; |
SBC $1D ; |
BEQ ON_SCREEN_Y ; |
LDA $186C,x ; | (vert offscreen)
ORA SPR_T2,y ; |
STA $186C,x ; |
ON_SCREEN_Y DEY ; |
BPL ON_SCREEN_LOOP ; /
LDY $15EA,x ; get offset to sprite OAM
LDA $E4,x ; \
SEC ; |
SBC $1A ; | $00 = sprite x position relative to screen boarder
STA $00 ; /
LDA $D8,x ; \
SEC ; |
SBC $1C ; | $01 = sprite y position relative to screen boarder
STA $01 ; /
RTS ; return
INVALID PLA ; \ return from *main gfx routine* subroutine...
PLA ; | ...(not just this subroutine)
RTS ; /
SpriteCode:
JSR Graphics
LDA $14C8,x ; \ die Striche dienen nur dazu zu Kennzeichnen, was zusammen gehört.
CMP #$08 ; | Sollte der Sprite tot sein, oder nicht „normal“ zurück
BNE RETURN ; /
LDA $9D ; \
BNE RETURN ; / Sollte der Sprite „verschlossen sein, zurück
JSL $01A7DC
REST VOM CODE HIER
RETURN:
RTS ; Ich hoffe ihr wisst noch warum RTS und nicht RTL
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; SUB_OFF_SCREEN
; This subroutine deals with sprites that have moved off screen
; It is adapted from the subroutine at $01AC0D
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T12 dcb $40,$B0
SPR_T13 dcb $01,$FF
SPR_T14 dcb $30,$C0,$A0,$C0,$A0,$F0,$60,$90 ;bank 1 sizes
dcb $30,$C0,$A0,$80,$A0,$40,$60,$B0 ;bank 3 sizes
SPR_T15 dcb $01,$FF,$01,$FF,$01,$FF,$01,$FF ;bank 1 sizes
dcb $01,$FF,$01,$FF,$01,$00,$01,$FF ;bank 3 sizes
SUB_OFF_SCREEN_X1 LDA #$02 ; \ entry point of routine determines value of $03
BRA STORE_03 ; | (table entry to use on horizontal levels)
SUB_OFF_SCREEN_X2 LDA #$04 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X3 LDA #$06 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X4 LDA #$08 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X5 LDA #$0A ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X6 LDA #$0C ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X7 LDA #$0E ; |
STORE_03 STA $03 ; |
BRA START_SUB ; |
SUB_OFF_SCREEN_X0 STZ $03 ; /
START_SUB JSR SUB_IS_OFF_SCREEN ; \ if sprite is not off screen, return
BEQ RETURN_35 ; /
LDA $5B ; \ goto VERTICAL_LEVEL if vertical level
AND #$01 ; |
BNE VERTICAL_LEVEL ; /
LDA $D8,x ; \
CLC ; |
ADC #$50 ; | if the sprite has gone off the bottom of the level...
LDA $14D4,x ; | (if adding 0x50 to the sprite y position would make the high byte >= 2)
ADC #$00 ; |
CMP #$02 ; |
BPL ERASE_SPRITE ; / ...erase the sprite
LDA $167A,x ; \ if "process offscreen" flag is set, return
AND #$04 ; |
BNE RETURN_35 ; /
LDA $13 ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0756 VC:176 00 FL:205
AND #$01 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0780 VC:176 00 FL:205
ORA $03 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0796 VC:176 00 FL:205
STA $01 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0820 VC:176 00 FL:205
TAY ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0844 VC:176 00 FL:205
LDA $1A ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0858 VC:176 00 FL:205
CLC ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0882 VC:176 00 FL:205
ADC SPR_T14,y ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0896 VC:176 00 FL:205
ROL $00 ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizcHC:0928 VC:176 00 FL:205
CMP $E4,x ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:0966 VC:176 00 FL:205
PHP ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:0996 VC:176 00 FL:205
LDA $1B ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdizCHC:1018 VC:176 00 FL:205
LSR $00 ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdiZCHC:1042 VC:176 00 FL:205
ADC SPR_T15,y ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdizcHC:1080 VC:176 00 FL:205
PLP ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F0 P:eNvMXdizcHC:1112 VC:176 00 FL:205
SBC $14E0,x ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1140 VC:176 00 FL:205
STA $00 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:1172 VC:176 00 FL:205
LSR $01 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:1196 VC:176 00 FL:205
BCC SPR_L31 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZCHC:1234 VC:176 00 FL:205
EOR #$80 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZCHC:1250 VC:176 00 FL:205
STA $00 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1266 VC:176 00 FL:205
SPR_L31 LDA $00 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1290 VC:176 00 FL:205
BPL RETURN_35 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1314 VC:176 00 FL:205
ERASE_SPRITE LDA $14C8,x ; \ if sprite status < 8, permanently erase sprite
CMP #$08 ; |
BCC KILL_SPRITE ; /
LDY $161A,x ;A:FF08 X:0007 Y:0001 D:0000 DB:01 S:01F3 P:envMXdiZCHC:1108 VC:059 00 FL:2878
CPY #$FF ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdiZCHC:1140 VC:059 00 FL:2878
BEQ KILL_SPRITE ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdizcHC:1156 VC:059 00 FL:2878
LDA #$00 ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdizcHC:1172 VC:059 00 FL:2878
STA $1938,y ;A:FF00 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdiZcHC:1188 VC:059 00 FL:2878
KILL_SPRITE STZ $14C8,x ; erase sprite
RETURN_35 RTS ; return
VERTICAL_LEVEL LDA $167A,x ; \ if "process offscreen" flag is set, return
AND #$04 ; |
BNE RETURN_35 ; /
LDA $13 ; \
LSR A ; |
BCS RETURN_35 ; /
LDA $E4,x ; \
CMP #$00 ; | if the sprite has gone off the side of the level...
LDA $14E0,x ; |
SBC #$00 ; |
CMP #$02 ; |
BCS ERASE_SPRITE ; / ...erase the sprite
LDA $13 ;A:0000 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:1218 VC:250 00 FL:5379
LSR A ;A:0016 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1242 VC:250 00 FL:5379
AND #$01 ;A:000B X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1256 VC:250 00 FL:5379
STA $01 ;A:0001 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1272 VC:250 00 FL:5379
TAY ;A:0001 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1296 VC:250 00 FL:5379
LDA $1C ;A:001A X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0052 VC:251 00 FL:5379
CLC ;A:00BD X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0076 VC:251 00 FL:5379
ADC SPR_T12,y ;A:00BD X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0090 VC:251 00 FL:5379
ROL $00 ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:enVMXdizCHC:0122 VC:251 00 FL:5379
CMP $D8,x ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0160 VC:251 00 FL:5379
PHP ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0190 VC:251 00 FL:5379
LDA.W $001D ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F2 P:eNVMXdizcHC:0212 VC:251 00 FL:5379
LSR $00 ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:enVMXdiZcHC:0244 VC:251 00 FL:5379
ADC SPR_T13,y ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:enVMXdizCHC:0282 VC:251 00 FL:5379
PLP ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:envMXdiZCHC:0314 VC:251 00 FL:5379
SBC $14D4,x ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0342 VC:251 00 FL:5379
STA $00 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0374 VC:251 00 FL:5379
LDY $01 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0398 VC:251 00 FL:5379
BEQ SPR_L38 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0422 VC:251 00 FL:5379
EOR #$80 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0438 VC:251 00 FL:5379
STA $00 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0454 VC:251 00 FL:5379
SPR_L38 LDA $00 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0478 VC:251 00 FL:5379
BPL RETURN_35 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0502 VC:251 00 FL:5379
BMI ERASE_SPRITE ;A:8AFF X:0002 Y:0000 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0704 VC:184 00 FL:5490
SUB_IS_OFF_SCREEN LDA $15A0,x ; \ if sprite is on screen, accumulator = 0
ORA $186C,x ; |
RTS ; / return
JSR SUB_OFF_SCREEN_X0
dcb "INIT"
RTL
dcb "MAIN"
PHB ;\
PHK ; | Change the data bank to the one our code is running from.
PLB ; | This is a good practice.
JSR SpriteCode ; | Jump to the sprite's function.
PLB ; | Restore old data bank.
RTL ;/ And return.
;===================================
;Sprite Function
;===================================
RETURN: ;\ The return label that gets called when the sprite is dead or locked is here.
RTS ;/ I added it here to ensure that the branch is in range.
SpriteCode:
JSR Graphics ; This routine controls graphics.
LDA $14C8,x ;\
CMP #$08 ; | If sprite is dead or not in it's normal routine..
BNE RETURN ;/ RETURN.
LDA $9D ; If the sprite is locked ..
BNE RETURN ; RETURN.
JSR SUB_OFF_SCREEN_X0
JSL $018032 ; Interact with other sprites. Make sure the "dont interact with other sprites" option in the .cfg editor is unchecked!
JSL $01A7DC ; Check for Mario/sprite contact ..
BCC NoContact ; Return if there isn't.
;===================================
;Mario Contact
;===================================
LDA #10 ;\
STA $13CC ; | 10 coins.
LDA #$01 ; |
STA $1DF9 ;/ Play sound.
STZ $14C8,x ; Sprite status = 00 = non-existant. This makes the sprite erase itself.
; No need for an RTL because we wrote it below.
;===================================
;No Contact
;===================================
NoContact:
RTS ; After the graphics routine is over, return.
;===================================
;Graphics Code
;===================================
Graphics:
JSR GET_DRAW_INFO ; Before actually coding the graphics, we need a routine that will get the current sprite's value
; into the OAM.
; The OAM being a place where the tile data for the current sprite will be stored.
LDA $00 ;\
STA $0300,y ;/ Draw the X position of the sprite
LDA $01 ;\
STA $0301,y ;/ Draw the Y position of the sprite
;Those 2 above are always needed to figure out the X/Y position of the sprite
LDA #$24 ;\
STA $0302,y ;/ Tile to draw. This is currently tile 24.
; NOTE: The tile is the upper-left tile of the 16x16 tile you want to draw
LDA #$06
ORA $64
STA $0303,y ; Write the YXPPCCCT property byte of the sprite
; See this part of the tutorial again for more info
INY ;\
INY ; | The OAM is 8x8, but our sprite is 16x16 ..
INY ; | So increment it 4 times.
INY ;/
LDY #$02 ; Y ends with the tile size .. 02 means it's 16x16
LDA #$00 ; A -> number of tiles drawn - 1.
; I drew only 1 tile so I put in 1-1 = 00.
JSL $01B7B3 ; Call the routine that draws the sprite.
RTS ; Never forget this!
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; GET_DRAW_INFO
; This is a helper for the graphics routine. It sets off screen flags, and sets up
; variables. It will return with the following:
;
; Y = index to sprite OAM ($300)
; $00 = sprite x position relative to screen boarder
; $01 = sprite y position relative to screen boarder
;
; It is adapted from the subroutine at $03B760
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T1 dcb $0C,$1C
SPR_T2 dcb $01,$02
GET_DRAW_INFO STZ $186C,x ; reset sprite offscreen flag, vertical
STZ $15A0,x ; reset sprite offscreen flag, horizontal
LDA $E4,x ; \
CMP $1A ; | set horizontal offscreen if necessary
LDA $14E0,x ; |
SBC $1B ; |
BEQ ON_SCREEN_X ; |
INC $15A0,x ; /
ON_SCREEN_X LDA $14E0,x ; \
XBA ; |
LDA $E4,x ; |
REP #$20 ; |
SEC ; |
SBC $1A ; | mark sprite invalid if far enough off screen
CLC ; |
ADC.W #$0040 ; |
CMP.W #$0180 ; |
SEP #$20 ; |
ROL A ; |
AND #$01 ; |
STA $15C4,x ; /
BNE INVALID ;
LDY #$00 ; \ set up loop:
LDA $1662,x ; |
AND #$20 ; | if not smushed (1662 & 0x20), go through loop twice
BEQ ON_SCREEN_LOOP ; | else, go through loop once
INY ; /
ON_SCREEN_LOOP LDA $D8,x ; \
CLC ; | set vertical offscreen if necessary
ADC SPR_T1,y ; |
PHP ; |
CMP $1C ; | (vert screen boundry)
ROL $00 ; |
PLP ; |
LDA $14D4,x ; |
ADC #$00 ; |
LSR $00 ; |
SBC $1D ; |
BEQ ON_SCREEN_Y ; |
LDA $186C,x ; | (vert offscreen)
ORA SPR_T2,y ; |
STA $186C,x ; |
ON_SCREEN_Y DEY ; |
BPL ON_SCREEN_LOOP ; /
LDY $15EA,x ; get offset to sprite OAM
LDA $E4,x ; \
SEC ; |
SBC $1A ; | $00 = sprite x position relative to screen boarder
STA $00 ; /
LDA $D8,x ; \
SEC ; |
SBC $1C ; | $01 = sprite y position relative to screen boarder
STA $01 ; /
RTS ; return
INVALID PLA ; \ return from *main gfx routine* subroutine...
PLA ; | ...(not just this subroutine)
RTS ; /
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; SUB_OFF_SCREEN
; This subroutine deals with sprites that have moved off screen
; It is adapted from the subroutine at $01AC0D
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T12: db $40,$B0
SPR_T13: db $01,$FF
SPR_T14: db $30,$C0,$A0,$C0,$A0,$F0,$60,$90 ;bank 1 sizes
db $30,$C0,$A0,$80,$A0,$40,$60,$B0 ;bank 3 sizes
SPR_T15: db $01,$FF,$01,$FF,$01,$FF,$01,$FF ;bank 1 sizes
db $01,$FF,$01,$FF,$01,$00,$01,$FF ;bank 3 sizes
SUB_OFF_SCREEN_X1: LDA #$02 ; \ entry point of routine determines value of $03
BRA STORE_03 ; | (table entry to use on horizontal levels)
SUB_OFF_SCREEN_X2: LDA #$04 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X3: LDA #$06 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X4: LDA #$08 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X5: LDA #$0A ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X6: LDA #$0C ; |
BRA STORE_03 ; | OMG YOU FOUND THIS HIDDEN z0mg place!111 you win a cookie!
SUB_OFF_SCREEN_X7: LDA #$0E ; |
STORE_03: STA $03 ; |
BRA START_SUB ; |
SUB_OFF_SCREEN_X0: STZ $03 ; /
START_SUB: JSR SUB_IS_OFF_SCREEN ; \ if sprite is not off screen, return
BEQ RETURN_35 ; /
LDA $5B ; \ goto VERTICAL_LEVEL if vertical level
AND #$01 ; |
BNE VERTICAL_LEVEL ; /
LDA $D8,x ; \
CLC ; |
ADC #$50 ; | if the sprite has gone off the bottom of the level...
LDA $14D4,x ; | (if adding 0x50 to the sprite y position would make the high byte >= 2)
ADC #$00 ; |
CMP #$02 ; |
BPL ERASE_SPRITE ; / ...erase the sprite
LDA $167A,x ; \ if "process offscreen" flag is set, return
AND #$04 ; |
BNE RETURN_35 ; /
LDA $13 ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0756 VC:176 00 FL:205
AND #$01 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0780 VC:176 00 FL:205
ORA $03 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0796 VC:176 00 FL:205
STA $01 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0820 VC:176 00 FL:205
TAY ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0844 VC:176 00 FL:205
LDA $1A ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0858 VC:176 00 FL:205
CLC ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0882 VC:176 00 FL:205
ADC SPR_T14,y ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0896 VC:176 00 FL:205
ROL $00 ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizcHC:0928 VC:176 00 FL:205
CMP $E4,x ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:0966 VC:176 00 FL:205
PHP ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:0996 VC:176 00 FL:205
LDA $1B ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdizCHC:1018 VC:176 00 FL:205
LSR $00 ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdiZCHC:1042 VC:176 00 FL:205
ADC SPR_T15,y ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdizcHC:1080 VC:176 00 FL:205
PLP ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F0 P:eNvMXdizcHC:1112 VC:176 00 FL:205
SBC $14E0,x ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1140 VC:176 00 FL:205
STA $00 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:1172 VC:176 00 FL:205
LSR $01 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:1196 VC:176 00 FL:205
BCC SPR_L31 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZCHC:1234 VC:176 00 FL:205
EOR #$80 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZCHC:1250 VC:176 00 FL:205
STA $00 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1266 VC:176 00 FL:205
SPR_L31: LDA $00 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1290 VC:176 00 FL:205
BPL RETURN_35 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1314 VC:176 00 FL:205
ERASE_SPRITE: LDA $14C8,x ; \ if sprite status < 8, permanently erase sprite
CMP #$08 ; |
BCC KILL_SPRITE ; /
LDY $161A,x ;A:FF08 X:0007 Y:0001 D:0000 DB:01 S:01F3 P:envMXdiZCHC:1108 VC:059 00 FL:2878
CPY #$FF ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdiZCHC:1140 VC:059 00 FL:2878
BEQ KILL_SPRITE ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdizcHC:1156 VC:059 00 FL:2878
LDA #$00 ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdizcHC:1172 VC:059 00 FL:2878
STA $1938,y ;A:FF00 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdiZcHC:1188 VC:059 00 FL:2878
KILL_SPRITE: STZ $14C8,x ; erase sprite
RETURN_35: RTS ; return
VERTICAL_LEVEL: LDA $167A,x ; \ if "process offscreen" flag is set, return
AND #$04 ; |
BNE RETURN_35 ; /
LDA $13 ; \
LSR A ; |
BCS RETURN_35 ; /
LDA $E4,x ; \
CMP #$00 ; | if the sprite has gone off the side of the level...
LDA $14E0,x ; |
SBC #$00 ; |
CMP #$02 ; |
BCS ERASE_SPRITE ; / ...erase the sprite
LDA $13 ;A:0000 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:1218 VC:250 00 FL:5379
LSR A ;A:0016 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1242 VC:250 00 FL:5379
AND #$01 ;A:000B X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1256 VC:250 00 FL:5379
STA $01 ;A:0001 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1272 VC:250 00 FL:5379
TAY ;A:0001 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1296 VC:250 00 FL:5379
LDA $1C ;A:001A X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0052 VC:251 00 FL:5379
CLC ;A:00BD X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0076 VC:251 00 FL:5379
ADC SPR_T12,y ;A:00BD X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0090 VC:251 00 FL:5379
ROL $00 ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:enVMXdizCHC:0122 VC:251 00 FL:5379
CMP $D8,x ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0160 VC:251 00 FL:5379
PHP ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0190 VC:251 00 FL:5379
LDA $001D ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F2 P:eNVMXdizcHC:0212 VC:251 00 FL:5379
LSR $00 ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:enVMXdiZcHC:0244 VC:251 00 FL:5379
ADC SPR_T13,y ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:enVMXdizCHC:0282 VC:251 00 FL:5379
PLP ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:envMXdiZCHC:0314 VC:251 00 FL:5379
SBC $14D4,x ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0342 VC:251 00 FL:5379
STA $00 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0374 VC:251 00 FL:5379
LDY $01 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0398 VC:251 00 FL:5379
BEQ SPR_L38 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0422 VC:251 00 FL:5379
EOR #$80 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0438 VC:251 00 FL:5379
STA $00 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0454 VC:251 00 FL:5379
SPR_L38: LDA $00 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0478 VC:251 00 FL:5379
BPL RETURN_35 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0502 VC:251 00 FL:5379
BMI ERASE_SPRITE ;A:8AFF X:0002 Y:0000 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0704 VC:184 00 FL:5490
SUB_IS_OFF_SCREEN: LDA $15A0,x ; \ if sprite is on screen, accumulator = 0
ORA $186C,x ; |
RTS ; / return
dcb "INIT"
RTL
dcb "MAIN"
PHB ;\
PHK ; | Change the data bank to the one our code is running from.
PLB ; | This is a good practice.
JSR SpriteCode ; | Jump to the sprite's function.
PLB ; | Restore old data bank.
RTL ;/ And return.
;===================================
;Sprite Function
;===================================
RETURN:
RTS
SpriteCode:
JSR Graphics
LDA $14C8,x
CMP #$08
BNE RETURN
LDA $9D
BNE RETURN
JSR SUB_OFF_SCREEN_X0
;===================================
;Graphics Code
;===================================
Graphics:
JSR GET_DRAW_INFO ; Before actually coding the graphics, we need a routine that will get the current sprite's value
; into the OAM.
; The OAM being a place where the tile data for the current sprite will be stored.
LDA $00 ;\
STA $0300,y ;/ Draw the X position of the sprite
LDA $01 ;\
STA $0301,y ;/ Draw the Y position of the sprite
;Those 2 above are always needed to figure out the X/Y position of the sprite
LDA #$CA ;\
STA $0302,y ;/ Tile to draw. This is currently tile 24.
; NOTE: The tile is the upper-left tile of the 16x16 tile you want to draw
LDA #$07
ORA $64
STA $0303,y ; Write the YXPPCCCT property byte of the sprite
; See this part of the tutorial again for more info
INY ;\
INY ; | The OAM is 8x8, but our sprite is 16x16 ..
INY ; | So increment it 4 times.
INY ;/
LDY #$02 ; Y ends with the tile size .. 02 means it's 16x16
LDA #$00 ; A -> number of tiles drawn - 1.
; I drew only 1 tile so I put in 1-1 = 00.
JSL $01B7B3 ; Call the routine that draws the sprite.
RTS ; Never forget this!
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; GET_DRAW_INFO
; This is a helper for the graphics routine. It sets off screen flags, and sets up
; variables. It will return with the following:
;
; Y = index to sprite OAM ($300)
; $00 = sprite x position relative to screen boarder
; $01 = sprite y position relative to screen boarder
;
; It is adapted from the subroutine at $03B760
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T1 dcb $0C,$1C
SPR_T2 dcb $01,$02
GET_DRAW_INFO STZ $186C,x ; reset sprite offscreen flag, vertical
STZ $15A0,x ; reset sprite offscreen flag, horizontal
LDA $E4,x ; \
CMP $1A ; | set horizontal offscreen if necessary
LDA $14E0,x ; |
SBC $1B ; |
BEQ ON_SCREEN_X ; |
INC $15A0,x ; /
ON_SCREEN_X LDA $14E0,x ; \
XBA ; |
LDA $E4,x ; |
REP #$20 ; |
SEC ; |
SBC $1A ; | mark sprite invalid if far enough off screen
CLC ; |
ADC.W #$0040 ; |
CMP.W #$0180 ; | IF YOU READ THIS, YOU WIN A COOKIE! PM ME AND I'LL GIVE YOU A FREE ASM HACK WOOHOO!
SEP #$20 ; |
ROL A ; |
AND #$01 ; |
STA $15C4,x ; /
BNE INVALID ;
LDY #$00 ; \ set up loop:
LDA $1662,x ; |
AND #$20 ; | if not smushed (1662 & 0x20), go through loop twice
BEQ ON_SCREEN_LOOP ; | else, go through loop once
INY ; /
ON_SCREEN_LOOP LDA $D8,x ; \
CLC ; | set vertical offscreen if necessary
ADC SPR_T1,y ; |
PHP ; |
CMP $1C ; | (vert screen boundry)
ROL $00 ; |
PLP ; |
LDA $14D4,x ; |
ADC #$00 ; |
LSR $00 ; |
SBC $1D ; |
BEQ ON_SCREEN_Y ; |
LDA $186C,x ; | (vert offscreen)
ORA SPR_T2,y ; |
STA $186C,x ; |
ON_SCREEN_Y DEY ; |
BPL ON_SCREEN_LOOP ; /
LDY $15EA,x ; get offset to sprite OAM
LDA $E4,x ; \
SEC ; |
SBC $1A ; | $00 = sprite x position relative to screen boarder
STA $00 ; /
LDA $D8,x ; \
SEC ; |
SBC $1C ; | $01 = sprite y position relative to screen boarder
STA $01 ; /
RTS ; return
INVALID PLA ; \ return from *main gfx routine* subroutine...
PLA ; | ...(not just this subroutine)
RTS ; /
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; SUB_OFF_SCREEN
; This subroutine deals with sprites that have moved off screen
; It is adapted from the subroutine at $01AC0D
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T12 dcb $40,$B0
SPR_T13 dcb $01,$FF
SPR_T14 dcb $30,$C0,$A0,$C0,$A0,$F0,$60,$90 ;bank 1 sizes
dcb $30,$C0,$A0,$80,$A0,$40,$60,$B0 ;bank 3 sizes
SPR_T15 dcb $01,$FF,$01,$FF,$01,$FF,$01,$FF ;bank 1 sizes
dcb $01,$FF,$01,$FF,$01,$00,$01,$FF ;bank 3 sizes
SUB_OFF_SCREEN_X1 LDA #$02 ; \ entry point of routine determines value of $03
BRA STORE_03 ; | (table entry to use on horizontal levels)
SUB_OFF_SCREEN_X2 LDA #$04 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X3 LDA #$06 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X4 LDA #$08 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X5 LDA #$0A ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X6 LDA #$0C ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X7 LDA #$0E ; |
STORE_03 STA $03 ; |
BRA START_SUB ; |
SUB_OFF_SCREEN_X0 STZ $03 ; /
START_SUB JSR SUB_IS_OFF_SCREEN ; \ if sprite is not off screen, return
BEQ RETURN_35 ; /
LDA $5B ; \ goto VERTICAL_LEVEL if vertical level
AND #$01 ; |
BNE VERTICAL_LEVEL ; /
LDA $D8,x ; \
CLC ; |
ADC #$50 ; | if the sprite has gone off the bottom of the level...
LDA $14D4,x ; | (if adding 0x50 to the sprite y position would make the high byte >= 2)
ADC #$00 ; |
CMP #$02 ; |
BPL ERASE_SPRITE ; / ...erase the sprite
LDA $167A,x ; \ if "process offscreen" flag is set, return
AND #$04 ; |
BNE RETURN_35 ; /
LDA $13 ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0756 VC:176 00 FL:205
AND #$01 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0780 VC:176 00 FL:205
ORA $03 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0796 VC:176 00 FL:205
STA $01 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0820 VC:176 00 FL:205
TAY ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0844 VC:176 00 FL:205
LDA $1A ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0858 VC:176 00 FL:205
CLC ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0882 VC:176 00 FL:205
ADC SPR_T14,y ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0896 VC:176 00 FL:205
ROL $00 ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizcHC:0928 VC:176 00 FL:205
CMP $E4,x ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:0966 VC:176 00 FL:205
PHP ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:0996 VC:176 00 FL:205
LDA $1B ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdizCHC:1018 VC:176 00 FL:205
LSR $00 ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdiZCHC:1042 VC:176 00 FL:205
ADC SPR_T15,y ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdizcHC:1080 VC:176 00 FL:205
PLP ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F0 P:eNvMXdizcHC:1112 VC:176 00 FL:205
SBC $14E0,x ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1140 VC:176 00 FL:205
STA $00 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:1172 VC:176 00 FL:205
LSR $01 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:1196 VC:176 00 FL:205
BCC SPR_L31 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZCHC:1234 VC:176 00 FL:205
EOR #$80 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZCHC:1250 VC:176 00 FL:205
STA $00 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1266 VC:176 00 FL:205
SPR_L31 LDA $00 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1290 VC:176 00 FL:205
BPL RETURN_35 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1314 VC:176 00 FL:205
ERASE_SPRITE LDA $14C8,x ; \ if sprite status < 8, permanently erase sprite
CMP #$08 ; |
BCC KILL_SPRITE ; /
LDY $161A,x ;A:FF08 X:0007 Y:0001 D:0000 DB:01 S:01F3 P:envMXdiZCHC:1108 VC:059 00 FL:2878
CPY #$FF ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdiZCHC:1140 VC:059 00 FL:2878
BEQ KILL_SPRITE ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdizcHC:1156 VC:059 00 FL:2878
LDA #$00 ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdizcHC:1172 VC:059 00 FL:2878
STA $1938,y ;A:FF00 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdiZcHC:1188 VC:059 00 FL:2878
KILL_SPRITE STZ $14C8,x ; erase sprite
RETURN_35 RTS ; return
VERTICAL_LEVEL LDA $167A,x ; \ if "process offscreen" flag is set, return
AND #$04 ; |
BNE RETURN_35 ; /
LDA $13 ; \
LSR A ; |
BCS RETURN_35 ; /
LDA $E4,x ; \
CMP #$00 ; | if the sprite has gone off the side of the level...
LDA $14E0,x ; |
SBC #$00 ; |
CMP #$02 ; |
BCS ERASE_SPRITE ; / ...erase the sprite
LDA $13 ;A:0000 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:1218 VC:250 00 FL:5379
LSR A ;A:0016 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1242 VC:250 00 FL:5379
AND #$01 ;A:000B X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1256 VC:250 00 FL:5379
STA $01 ;A:0001 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1272 VC:250 00 FL:5379
TAY ;A:0001 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1296 VC:250 00 FL:5379
LDA $1C ;A:001A X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0052 VC:251 00 FL:5379
CLC ;A:00BD X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0076 VC:251 00 FL:5379
ADC SPR_T12,y ;A:00BD X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0090 VC:251 00 FL:5379
ROL $00 ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:enVMXdizCHC:0122 VC:251 00 FL:5379
CMP $D8,x ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0160 VC:251 00 FL:5379
PHP ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0190 VC:251 00 FL:5379
LDA.W $001D ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F2 P:eNVMXdizcHC:0212 VC:251 00 FL:5379
LSR $00 ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:enVMXdiZcHC:0244 VC:251 00 FL:5379
ADC SPR_T13,y ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:enVMXdizCHC:0282 VC:251 00 FL:5379
PLP ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:envMXdiZCHC:0314 VC:251 00 FL:5379
SBC $14D4,x ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0342 VC:251 00 FL:5379
STA $00 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0374 VC:251 00 FL:5379
LDY $01 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0398 VC:251 00 FL:5379
BEQ SPR_L38 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0422 VC:251 00 FL:5379
EOR #$80 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0438 VC:251 00 FL:5379
STA $00 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0454 VC:251 00 FL:5379
SPR_L38 LDA $00 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0478 VC:251 00 FL:5379
BPL RETURN_35 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0502 VC:251 00 FL:5379
BMI ERASE_SPRITE ;A:8AFF X:0002 Y:0000 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0704 VC:184 00 FL:5490
SUB_IS_OFF_SCREEN LDA $15A0,x ; \ if sprite is on screen, accumulator = 0
ORA $186C,x ; |
RTS ; / return
TILEMAP: dcb $CA,$CC ;TILEMAP ist einfach der Name der Tabelle
LDA #$CA
STA $030,y
PHX
LDA #$CA ; \ Haben wir bisher noch nicht besprochen
STA $0302,y ; /
PLX
LDA $01
STA $0301,y ; Der Code für die Y ist eins höher als unserer
PHX
LDA $13
AND #$01 ; die Zahl hier ist muss eins geringer sein, als die Wert in der Tabelle
TAX ; kopiert wie viel früher gesagt einen Wert von A nach X
LDA $01
STA $0301,y
PHX
LDA $13
AND #$01
TAX
LDA TILEMAP,x
STA $0302,y
PLX
LDA #$CA
STA $030,y
PHX
LDA $13
LSR
AND #$01
TAX
LDA TILEMAP,x
STA $0302,y
PLX
PHX
LDA $13
LSR
LSR
LSR
AND #$01
TAX
LDA TILEMAP,x
STA $0302,y
PLX
XSPEED: dcb $08,$F8 ; Geschwindigkeit für Bewegung nach links und rechts
LDY $157C,x ; Laden der Richtung mit LDY
LDA XSPEED,y ; Die Geschwindigkeit ist abhängig von der Richtung
STA $B6,x ; Speichern der Geschwindigkeit als X Geschwindigkeit
LDY $157C,x
LDA XSPEED,y
STA $B6,x
LDA #$10 ; Hier habe ich jetzt auch die Gravitation hinzugefügt
STA $AA,x
JSL $01802A ; Unser Sprungbefehl
RTS
XSPEED: dcb $08, $F8
LDA $77
AND #$03
BEQ NotTouchingWall
; hier weiter wenn Wand berührt wird.
LDA $1588,x
AND #$03
BEQ NotTouchingWall
; hier weiter wenn Wand berührt wird.
LDA $157C,x
EOR #$01
STA $157C,x
dcb "INIT"
RTL
dcb "MAIN"
PHB ;\
PHK ; | Change the data bank to the one our code is running from.
PLB ; | This is a good practice.
JSR SpriteCode ; | Jump to the sprite's function.
PLB ; | Restore old data bank.
RTL ;/ And return.
;===================================
;Sprite Function
;===================================
RETURN: RTS
SpriteCode:
JSR Graphics
LDA $14C8,x ;\
CMP #$08 ; | If sprite dead,
BNE RETURN ;/ Return.
LDA $9D ;\
BNE RETURN ;/ If locked, return.
JSR SUB_OFF_SCREEN_X0 ; Handle offscreen.
LDA $1588,x ; ... if sprite is touching a wall.
AND #$03 ; (bit 0 and 1)..
BEQ DontFlip ; If bits aren't set, don't flip the sprite.
LDA $157C,x ;\
EOR #$01 ; | Flip sprite's direction when touching wall.
STA $157C,x ;/
DontFlip:
LDY $157C,x ;\ Get direction into Y.
LDA XSPEED,y ; | Load X speed indexed by Y.
STA $B6,x ;/ Store to X speed table.
LDA #$10 ;\ Y Speed for sprite on ground
STA $AA,x ;/ = 10.
JSL $01802A ; Apply speed.
RTS
XSPEED: dcb $08,$F8
;===================================
;Graphics Code
;===================================
TILEMAP: dcb $CA,$CC
Graphics:
JSR GET_DRAW_INFO ; Before actually coding the graphics, we need a routine that will get the current sprite's value
; into the OAM.
; The OAM being a place where the tile data for the current sprite will be stored.
LDA $00 ;\
STA $0300,y ;/ Draw the X position of the sprite
LDA $01 ;\
STA $0301,y ;/ Draw the Y position of the sprite
PHX
LDA $14
LSR
LSR
LSR
AND #$01
TAX
LDA TILEMAP,x
STA $0302,y
PLX
LDA #$07
ORA $64
STA $0303,y ; Write the YXPPCCCT property byte of the sprite
; See this part of the tutorial again for more info
INY ;\
INY ; | The OAM is 8x8, but our sprite is 16x16 ..
INY ; | So increment it 4 times.
INY ;/
LDY #$02 ; Y ends with the tile size .. 02 means it's 16x16
LDA #$00 ; A -> number of tiles drawn - 1.
; I drew only 1 tile so I put in 1-1 = 00.
JSL $01B7B3 ; Call the routine that draws the sprite.
RTS ; Never forget this!
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; GET_DRAW_INFO
; This is a helper for the graphics routine. It sets off screen flags, and sets up
; variables. It will return with the following:
;
; Y = index to sprite OAM ($300)
; $00 = sprite x position relative to screen boarder
; $01 = sprite y position relative to screen boarder
;
; It is adapted from the subroutine at $03B760
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T1 dcb $0C,$1C
SPR_T2 dcb $01,$02
GET_DRAW_INFO STZ $186C,x ; reset sprite offscreen flag, vertical
STZ $15A0,x ; reset sprite offscreen flag, horizontal
LDA $E4,x ; \
CMP $1A ; | set horizontal offscreen if necessary
LDA $14E0,x ; |
SBC $1B ; |
BEQ ON_SCREEN_X ; |
INC $15A0,x ; /
ON_SCREEN_X LDA $14E0,x ; \
XBA ; |
LDA $E4,x ; |
REP #$20 ; |
SEC ; |
SBC $1A ; | mark sprite invalid if far enough off screen
CLC ; |
ADC.W #$0040 ; |
CMP.W #$0180 ; |
SEP #$20 ; |
ROL A ; |
AND #$01 ; |
STA $15C4,x ; /
BNE INVALID ;
LDY #$00 ; \ set up loop:
LDA $1662,x ; |
AND #$20 ; | if not smushed (1662 & 0x20), go through loop twice
BEQ ON_SCREEN_LOOP ; | else, go through loop once
INY ; /
ON_SCREEN_LOOP LDA $D8,x ; \
CLC ; | set vertical offscreen if necessary
ADC SPR_T1,y ; |
PHP ; |
CMP $1C ; | (vert screen boundry)
ROL $00 ; |
PLP ; |
LDA $14D4,x ; |
ADC #$00 ; |
LSR $00 ; |
SBC $1D ; |
BEQ ON_SCREEN_Y ; |
LDA $186C,x ; | (vert offscreen)
ORA SPR_T2,y ; |
STA $186C,x ; |
ON_SCREEN_Y DEY ; |
BPL ON_SCREEN_LOOP ; /
LDY $15EA,x ; get offset to sprite OAM
LDA $E4,x ; \
SEC ; |
SBC $1A ; | $00 = sprite x position relative to screen boarder
STA $00 ; /
LDA $D8,x ; \
SEC ; |
SBC $1C ; | $01 = sprite y position relative to screen boarder
STA $01 ; /
RTS ; return
INVALID PLA ; \ return from *main gfx routine* subroutine...
PLA ; | ...(not just this subroutine)
RTS ; /
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; SUB_OFF_SCREEN
; This subroutine deals with sprites that have moved off screen
; It is adapted from the subroutine at $01AC0D
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T12: db $40,$B0
SPR_T13: db $01,$FF
SPR_T14: db $30,$C0,$A0,$C0,$A0,$F0,$60,$90 ;bank 1 sizes
db $30,$C0,$A0,$80,$A0,$40,$60,$B0 ;bank 3 sizes
SPR_T15: db $01,$FF,$01,$FF,$01,$FF,$01,$FF ;bank 1 sizes
db $01,$FF,$01,$FF,$01,$00,$01,$FF ;bank 3 sizes
SUB_OFF_SCREEN_X1: LDA #$02 ; \ entry point of routine determines value of $03
BRA STORE_03 ; | (table entry to use on horizontal levels)
SUB_OFF_SCREEN_X2: LDA #$04 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X3: LDA #$06 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X4: LDA #$08 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X5: LDA #$0A ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X6: LDA #$0C ; |
BRA STORE_03 ; | OMG YOU FOUND THIS HIDDEN z0mg place!111 you win a cookie!
SUB_OFF_SCREEN_X7: LDA #$0E ; |
STORE_03: STA $03 ; |
BRA START_SUB ; |
SUB_OFF_SCREEN_X0: STZ $03 ; /
START_SUB: JSR SUB_IS_OFF_SCREEN ; \ if sprite is not off screen, return
BEQ RETURN_35 ; /
LDA $5B ; \ goto VERTICAL_LEVEL if vertical level
AND #$01 ; |
BNE VERTICAL_LEVEL ; /
LDA $D8,x ; \
CLC ; |
ADC #$50 ; | if the sprite has gone off the bottom of the level...
LDA $14D4,x ; | (if adding 0x50 to the sprite y position would make the high byte >= 2)
ADC #$00 ; |
CMP #$02 ; |
BPL ERASE_SPRITE ; / ...erase the sprite
LDA $167A,x ; \ if "process offscreen" flag is set, return
AND #$04 ; |
BNE RETURN_35 ; /
LDA $13 ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0756 VC:176 00 FL:205
AND #$01 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0780 VC:176 00 FL:205
ORA $03 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0796 VC:176 00 FL:205
STA $01 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0820 VC:176 00 FL:205
TAY ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0844 VC:176 00 FL:205
LDA $1A ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0858 VC:176 00 FL:205
CLC ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0882 VC:176 00 FL:205
ADC SPR_T14,y ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0896 VC:176 00 FL:205
ROL $00 ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizcHC:0928 VC:176 00 FL:205
CMP $E4,x ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:0966 VC:176 00 FL:205
PHP ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:0996 VC:176 00 FL:205
LDA $1B ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdizCHC:1018 VC:176 00 FL:205
LSR $00 ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdiZCHC:1042 VC:176 00 FL:205
ADC SPR_T15,y ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdizcHC:1080 VC:176 00 FL:205
PLP ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F0 P:eNvMXdizcHC:1112 VC:176 00 FL:205
SBC $14E0,x ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1140 VC:176 00 FL:205
STA $00 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:1172 VC:176 00 FL:205
LSR $01 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:1196 VC:176 00 FL:205
BCC SPR_L31 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZCHC:1234 VC:176 00 FL:205
EOR #$80 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZCHC:1250 VC:176 00 FL:205
STA $00 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1266 VC:176 00 FL:205
SPR_L31: LDA $00 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1290 VC:176 00 FL:205
BPL RETURN_35 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1314 VC:176 00 FL:205
ERASE_SPRITE: LDA $14C8,x ; \ if sprite status < 8, permanently erase sprite
CMP #$08 ; |
BCC KILL_SPRITE ; /
LDY $161A,x ;A:FF08 X:0007 Y:0001 D:0000 DB:01 S:01F3 P:envMXdiZCHC:1108 VC:059 00 FL:2878
CPY #$FF ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdiZCHC:1140 VC:059 00 FL:2878
BEQ KILL_SPRITE ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdizcHC:1156 VC:059 00 FL:2878
LDA #$00 ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdizcHC:1172 VC:059 00 FL:2878
STA $1938,y ;A:FF00 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdiZcHC:1188 VC:059 00 FL:2878
KILL_SPRITE: STZ $14C8,x ; erase sprite
RETURN_35: RTS ; return
VERTICAL_LEVEL: LDA $167A,x ; \ if "process offscreen" flag is set, return
AND #$04 ; |
BNE RETURN_35 ; /
LDA $13 ; \
LSR A ; |
BCS RETURN_35 ; /
LDA $E4,x ; \
CMP #$00 ; | if the sprite has gone off the side of the level...
LDA $14E0,x ; |
SBC #$00 ; |
CMP #$02 ; |
BCS ERASE_SPRITE ; / ...erase the sprite
LDA $13 ;A:0000 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:1218 VC:250 00 FL:5379
LSR A ;A:0016 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1242 VC:250 00 FL:5379
AND #$01 ;A:000B X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1256 VC:250 00 FL:5379
STA $01 ;A:0001 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1272 VC:250 00 FL:5379
TAY ;A:0001 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1296 VC:250 00 FL:5379
LDA $1C ;A:001A X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0052 VC:251 00 FL:5379
CLC ;A:00BD X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0076 VC:251 00 FL:5379
ADC SPR_T12,y ;A:00BD X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0090 VC:251 00 FL:5379
ROL $00 ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:enVMXdizCHC:0122 VC:251 00 FL:5379
CMP $D8,x ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0160 VC:251 00 FL:5379
PHP ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0190 VC:251 00 FL:5379
LDA $001D ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F2 P:eNVMXdizcHC:0212 VC:251 00 FL:5379
LSR $00 ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:enVMXdiZcHC:0244 VC:251 00 FL:5379
ADC SPR_T13,y ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:enVMXdizCHC:0282 VC:251 00 FL:5379
PLP ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:envMXdiZCHC:0314 VC:251 00 FL:5379
SBC $14D4,x ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0342 VC:251 00 FL:5379
STA $00 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0374 VC:251 00 FL:5379
LDY $01 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0398 VC:251 00 FL:5379
BEQ SPR_L38 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0422 VC:251 00 FL:5379
EOR #$80 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0438 VC:251 00 FL:5379
STA $00 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0454 VC:251 00 FL:5379
SPR_L38: LDA $00 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0478 VC:251 00 FL:5379
BPL RETURN_35 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0502 VC:251 00 FL:5379
BMI ERASE_SPRITE ;A:8AFF X:0002 Y:0000 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0704 VC:184 00 FL:5490
SUB_IS_OFF_SCREEN: LDA $15A0,x ; \ if sprite is on screen, accumulator = 0
ORA $186C,x ; |
RTS ; / return
LDA #$07
ORA $64
STA $0303,y
PHY
LDY $157C,x
LDA PROPERTIES,y
PLY
ORA $64
STA $0303,y
PROPERTIES: dcb $47,$07
JSR GET_DRAW_INFO
LDA $157C,x
STA $02
; Rest des Codes dann einfach immer hier dran
PHX
LDX $02
LDA PROPERTIES,x
PLx
ORA $64
STA $0303,y
PROPERTIES: dcb $47,$07
dcb "INIT"
RTL
dcb "MAIN"
PHB ;\
PHK ; | Change the data bank to the one our code is running from.
PLB ; | This is a good practice.
JSR SpriteCode ; | Jump to the sprite's function.
PLB ; | Restore old data bank.
RTL ;/ And return.
;===================================
;Sprite Function
;===================================
RETURN: RTS
SpriteCode:
JSR Graphics
LDA $14C8,x ;\
CMP #$08 ; | If sprite dead,
BNE RETURN ;/ Return.
LDA $9D ;\
BNE RETURN ;/ If locked, return.
JSR SUB_OFF_SCREEN_X0 ; Handle offscreen.
LDA $1588,x ; ... if sprite is touching a wall.
AND #$03 ; (bit 0 and 1)..
BEQ DontFlip ; If bits aren't set, don't flip the sprite.
LDA $157C,x ;\
EOR #$01 ; | Flip sprite's direction when touching wall.
STA $157C,x ;/
DontFlip:
LDY $157C,x ;\ Get direction into Y.
LDA XSPEED,y ; | Load X speed indexed by Y.
STA $B6,x ;/ Store to X speed table.
LDA #$10 ;\ Y Speed for sprite on ground
STA $AA,x ;/ = 10.
JSL $01802A ; Apply speed.
JSL $018032 ; Make the sprite interact with others. Make sure the .cfg setting for this
; is off!
RTS
XSPEED: dcb $08,$F8
;===================================
;Graphics Code
;===================================
TILEMAP: dcb $CA,$CC
PROPERTIES: dcb $47,$07 ; NOTE: Flip the X direction when going right.
Graphics:
JSR GET_DRAW_INFO ; Before actually coding the graphics, we need a routine that will get the current sprite's value
; into the OAM.
; The OAM being a place where the tile data for the current sprite will be stored.
LDA $157C,x
STA $02 ; Store direction to $02 for use with property routine later.
LDA $00 ;\
STA $0300,y ;/ Draw the X position of the sprite
LDA $01 ;\
STA $0301,y ;/ Draw the Y position of the sprite
PHX
LDA $14
LSR
LSR
LSR
AND #$01
TAX
LDA TILEMAP,x
STA $0302,y
LDX $02 ; We already pushed X, so we don't need to push it again.
LDA PROPERTIES,x ; Get properties indexed by direction ..
ORA $64
STA $0303,y ; Store to properties byte.
PLX ; Pull back X.
INY ;\
INY ; | The OAM is 8x8, but our sprite is 16x16 ..
INY ; | So increment it 4 times.
INY ;/
LDY #$02 ; Y ends with the tile size .. 02 means it's 16x16
LDA #$00 ; A -> number of tiles drawn - 1.
; I drew only 1 tile so I put in 1-1 = 00.
JSL $01B7B3 ; Call the routine that draws the sprite.
RTS ; Never forget this!
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; GET_DRAW_INFO
; This is a helper for the graphics routine. It sets off screen flags, and sets up
; variables. It will return with the following:
;
; Y = index to sprite OAM ($300)
; $00 = sprite x position relative to screen boarder
; $01 = sprite y position relative to screen boarder
;
; It is adapted from the subroutine at $03B760
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T1 dcb $0C,$1C
SPR_T2 dcb $01,$02
GET_DRAW_INFO STZ $186C,x ; reset sprite offscreen flag, vertical
STZ $15A0,x ; reset sprite offscreen flag, horizontal
LDA $E4,x ; \
CMP $1A ; | set horizontal offscreen if necessary
LDA $14E0,x ; |
SBC $1B ; |
BEQ ON_SCREEN_X ; |
INC $15A0,x ; /
ON_SCREEN_X LDA $14E0,x ; \
XBA ; |
LDA $E4,x ; |
REP #$20 ; |
SEC ; |
SBC $1A ; | mark sprite invalid if far enough off screen
CLC ; |
ADC.W #$0040 ; |
CMP.W #$0180 ; |
SEP #$20 ; |
ROL A ; |
AND #$01 ; |
STA $15C4,x ; /
BNE INVALID ;
LDY #$00 ; \ set up loop:
LDA $1662,x ; |
AND #$20 ; | if not smushed (1662 & 0x20), go through loop twice
BEQ ON_SCREEN_LOOP ; | else, go through loop once
INY ; /
ON_SCREEN_LOOP LDA $D8,x ; \
CLC ; | set vertical offscreen if necessary
ADC SPR_T1,y ; |
PHP ; |
CMP $1C ; | (vert screen boundry)
ROL $00 ; |
PLP ; |
LDA $14D4,x ; |
ADC #$00 ; |
LSR $00 ; |
SBC $1D ; |
BEQ ON_SCREEN_Y ; |
LDA $186C,x ; | (vert offscreen)
ORA SPR_T2,y ; |
STA $186C,x ; |
ON_SCREEN_Y DEY ; |
BPL ON_SCREEN_LOOP ; /
LDY $15EA,x ; get offset to sprite OAM
LDA $E4,x ; \
SEC ; |
SBC $1A ; | $00 = sprite x position relative to screen boarder
STA $00 ; /
LDA $D8,x ; \
SEC ; |
SBC $1C ; | $01 = sprite y position relative to screen boarder
STA $01 ; /
RTS ; return
INVALID PLA ; \ return from *main gfx routine* subroutine...
PLA ; | ...(not just this subroutine)
RTS ; /
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; SUB_OFF_SCREEN
; This subroutine deals with sprites that have moved off screen
; It is adapted from the subroutine at $01AC0D
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T12: db $40,$B0
SPR_T13: db $01,$FF
SPR_T14: db $30,$C0,$A0,$C0,$A0,$F0,$60,$90 ;bank 1 sizes
db $30,$C0,$A0,$80,$A0,$40,$60,$B0 ;bank 3 sizes
SPR_T15: db $01,$FF,$01,$FF,$01,$FF,$01,$FF ;bank 1 sizes
db $01,$FF,$01,$FF,$01,$00,$01,$FF ;bank 3 sizes
SUB_OFF_SCREEN_X1: LDA #$02 ; \ entry point of routine determines value of $03
BRA STORE_03 ; | (table entry to use on horizontal levels)
SUB_OFF_SCREEN_X2: LDA #$04 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X3: LDA #$06 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X4: LDA #$08 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X5: LDA #$0A ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X6: LDA #$0C ; |
BRA STORE_03 ; | OMG YOU FOUND THIS HIDDEN z0mg place!111 you win a cookie!
SUB_OFF_SCREEN_X7: LDA #$0E ; |
STORE_03: STA $03 ; |
BRA START_SUB ; |
SUB_OFF_SCREEN_X0: STZ $03 ; /
START_SUB: JSR SUB_IS_OFF_SCREEN ; \ if sprite is not off screen, return
BEQ RETURN_35 ; /
LDA $5B ; \ goto VERTICAL_LEVEL if vertical level
AND #$01 ; |
BNE VERTICAL_LEVEL ; /
LDA $D8,x ; \
CLC ; |
ADC #$50 ; | if the sprite has gone off the bottom of the level...
LDA $14D4,x ; | (if adding 0x50 to the sprite y position would make the high byte >= 2)
ADC #$00 ; |
CMP #$02 ; |
BPL ERASE_SPRITE ; / ...erase the sprite
LDA $167A,x ; \ if "process offscreen" flag is set, return
AND #$04 ; |
BNE RETURN_35 ; /
LDA $13 ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0756 VC:176 00 FL:205
AND #$01 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0780 VC:176 00 FL:205
ORA $03 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0796 VC:176 00 FL:205
STA $01 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0820 VC:176 00 FL:205
TAY ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0844 VC:176 00 FL:205
LDA $1A ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0858 VC:176 00 FL:205
CLC ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0882 VC:176 00 FL:205
ADC SPR_T14,y ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0896 VC:176 00 FL:205
ROL $00 ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizcHC:0928 VC:176 00 FL:205
CMP $E4,x ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:0966 VC:176 00 FL:205
PHP ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:0996 VC:176 00 FL:205
LDA $1B ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdizCHC:1018 VC:176 00 FL:205
LSR $00 ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdiZCHC:1042 VC:176 00 FL:205
ADC SPR_T15,y ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdizcHC:1080 VC:176 00 FL:205
PLP ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F0 P:eNvMXdizcHC:1112 VC:176 00 FL:205
SBC $14E0,x ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1140 VC:176 00 FL:205
STA $00 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:1172 VC:176 00 FL:205
LSR $01 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:1196 VC:176 00 FL:205
BCC SPR_L31 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZCHC:1234 VC:176 00 FL:205
EOR #$80 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZCHC:1250 VC:176 00 FL:205
STA $00 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1266 VC:176 00 FL:205
SPR_L31: LDA $00 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1290 VC:176 00 FL:205
BPL RETURN_35 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1314 VC:176 00 FL:205
ERASE_SPRITE: LDA $14C8,x ; \ if sprite status < 8, permanently erase sprite
CMP #$08 ; |
BCC KILL_SPRITE ; /
LDY $161A,x ;A:FF08 X:0007 Y:0001 D:0000 DB:01 S:01F3 P:envMXdiZCHC:1108 VC:059 00 FL:2878
CPY #$FF ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdiZCHC:1140 VC:059 00 FL:2878
BEQ KILL_SPRITE ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdizcHC:1156 VC:059 00 FL:2878
LDA #$00 ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdizcHC:1172 VC:059 00 FL:2878
STA $1938,y ;A:FF00 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdiZcHC:1188 VC:059 00 FL:2878
KILL_SPRITE: STZ $14C8,x ; erase sprite
RETURN_35: RTS ; return
VERTICAL_LEVEL: LDA $167A,x ; \ if "process offscreen" flag is set, return
AND #$04 ; |
BNE RETURN_35 ; /
LDA $13 ; \
LSR A ; |
BCS RETURN_35 ; /
LDA $E4,x ; \
CMP #$00 ; | if the sprite has gone off the side of the level...
LDA $14E0,x ; |
SBC #$00 ; |
CMP #$02 ; |
BCS ERASE_SPRITE ; / ...erase the sprite
LDA $13 ;A:0000 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:1218 VC:250 00 FL:5379
LSR A ;A:0016 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1242 VC:250 00 FL:5379
AND #$01 ;A:000B X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1256 VC:250 00 FL:5379
STA $01 ;A:0001 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1272 VC:250 00 FL:5379
TAY ;A:0001 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1296 VC:250 00 FL:5379
LDA $1C ;A:001A X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0052 VC:251 00 FL:5379
CLC ;A:00BD X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0076 VC:251 00 FL:5379
ADC SPR_T12,y ;A:00BD X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0090 VC:251 00 FL:5379
ROL $00 ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:enVMXdizCHC:0122 VC:251 00 FL:5379
CMP $D8,x ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0160 VC:251 00 FL:5379
PHP ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0190 VC:251 00 FL:5379
LDA $001D ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F2 P:eNVMXdizcHC:0212 VC:251 00 FL:5379
LSR $00 ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:enVMXdiZcHC:0244 VC:251 00 FL:5379
ADC SPR_T13,y ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:enVMXdizCHC:0282 VC:251 00 FL:5379
PLP ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:envMXdiZCHC:0314 VC:251 00 FL:5379
SBC $14D4,x ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0342 VC:251 00 FL:5379
STA $00 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0374 VC:251 00 FL:5379
LDY $01 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0398 VC:251 00 FL:5379
BEQ SPR_L38 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0422 VC:251 00 FL:5379
EOR #$80 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0438 VC:251 00 FL:5379
STA $00 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0454 VC:251 00 FL:5379
SPR_L38: LDA $00 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0478 VC:251 00 FL:5379
BPL RETURN_35 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0502 VC:251 00 FL:5379
BMI ERASE_SPRITE ;A:8AFF X:0002 Y:0000 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0704 VC:184 00 FL:5490
SUB_IS_OFF_SCREEN: LDA $15A0,x ; \ if sprite is on screen, accumulator = 0
ORA $186C,x ; |
RTS ; / return
DontFlip:
LDY $157C,x
LDA XSPEED,y
STA $B6,x
; und so weiter
DontFlip:
LDA $1588,x
AND #$04
BEQ NotOnGround
LDY $157C,x
LDA XSPEED,y
STA $B6,x
LDA #$10
STA $AA,x
NotOnGround:
JSL $01802A ; Update der Position des Sprites
JSL $018030
dcb "INIT"
RTL
dcb "MAIN"
PHB ;\
PHK ; | Change the data bank to the one our code is running from.
PLB ; | This is a good practice.
JSR SpriteCode ; | Jump to the sprite's function.
PLB ; | Restore old data bank.
RTL ;/ And return.
;===================================
;Sprite Function
;===================================
RETURN: RTS
SpriteCode:
JSR Graphics
LDA $14C8,x ;\
CMP #$08 ; | If sprite dead,
BNE RETURN ;/ Return.
LDA $9D ;\
BNE RETURN ;/ If locked, return.
JSR SUB_OFF_SCREEN_X0 ; Handle offscreen.
LDA $1588,x ; ... if sprite is touching a wall.
AND #$03 ; (bit 0 and 1)..
BEQ DontFlip ; If bits aren't set, don't flip the sprite.
LDA $157C,x ;\
EOR #$01 ; | Flip sprite's direction when touching wall.
STA $157C,x ;/
DontFlip:
LDA $1588,x
AND #$04 ; If the sprite is in air ..
BEQ NotOnGround ; Don't set speeds and branch.
LDY $157C,x ;\ Get direction into Y.
LDA XSPEED,y ; | Load X speed indexed by Y.
STA $B6,x ;/ Store to X speed table.
LDA #$10 ;\ Y Speed for sprite on ground
STA $AA,x ;/ = 10.
NotOnGround:
JSL $01802A ; Apply speed.
JSL $018032 ; Make the sprite interact with others. Make sure the .cfg setting for this
; is off!
RTS
XSPEED: dcb $08,$F8
;===================================
;Graphics Code
;===================================
TILEMAP: dcb $CA,$CC
PROPERTIES: dcb $47,$07 ; NOTE: Flip the X direction when going right.
Graphics:
JSR GET_DRAW_INFO ; Before actually coding the graphics, we need a routine that will get the current sprite's value
; into the OAM.
; The OAM being a place where the tile data for the current sprite will be stored.
LDA $157C,x
STA $02 ; Store direction to $02 for use with property routine later.
LDA $00 ;\
STA $0300,y ;/ Draw the X position of the sprite
LDA $01 ;\
STA $0301,y ;/ Draw the Y position of the sprite
PHX
LDA $14
LSR
LSR
LSR
AND #$01
TAX
LDA TILEMAP,x
STA $0302,y
LDX $02 ; We already pushed X, so we don't need to push it again.
LDA PROPERTIES,x ; Get properties indexed by direction ..
ORA $64
STA $0303,y ; Store to properties byte.
PLX ; Pull back X.
INY ;\
INY ; | The OAM is 8x8, but our sprite is 16x16 ..
INY ; | So increment it 4 times.
INY ;/
LDY #$02 ; Y ends with the tile size .. 02 means it's 16x16
LDA #$00 ; A -> number of tiles drawn - 1.
; I drew only 1 tile so I put in 1-1 = 00.
JSL $01B7B3 ; Call the routine that draws the sprite.
RTS ; Never forget this!
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; GET_DRAW_INFO
; This is a helper for the graphics routine. It sets off screen flags, and sets up
; variables. It will return with the following:
;
; Y = index to sprite OAM ($300)
; $00 = sprite x position relative to screen boarder
; $01 = sprite y position relative to screen boarder
;
; It is adapted from the subroutine at $03B760
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T1 dcb $0C,$1C
SPR_T2 dcb $01,$02
GET_DRAW_INFO STZ $186C,x ; reset sprite offscreen flag, vertical
STZ $15A0,x ; reset sprite offscreen flag, horizontal
LDA $E4,x ; \
CMP $1A ; | set horizontal offscreen if necessary
LDA $14E0,x ; |
SBC $1B ; |
BEQ ON_SCREEN_X ; |
INC $15A0,x ; /
ON_SCREEN_X LDA $14E0,x ; \
XBA ; |
LDA $E4,x ; |
REP #$20 ; |
SEC ; |
SBC $1A ; | mark sprite invalid if far enough off screen
CLC ; |
ADC.W #$0040 ; |
CMP.W #$0180 ; |
SEP #$20 ; |
ROL A ; |
AND #$01 ; |
STA $15C4,x ; /
BNE INVALID ;
LDY #$00 ; \ set up loop:
LDA $1662,x ; |
AND #$20 ; | if not smushed (1662 & 0x20), go through loop twice
BEQ ON_SCREEN_LOOP ; | else, go through loop once
INY ; /
ON_SCREEN_LOOP LDA $D8,x ; \
CLC ; | set vertical offscreen if necessary
ADC SPR_T1,y ; |
PHP ; |
CMP $1C ; | (vert screen boundry)
ROL $00 ; |
PLP ; |
LDA $14D4,x ; |
ADC #$00 ; |
LSR $00 ; |
SBC $1D ; |
BEQ ON_SCREEN_Y ; |
LDA $186C,x ; | (vert offscreen)
ORA SPR_T2,y ; |
STA $186C,x ; |
ON_SCREEN_Y DEY ; |
BPL ON_SCREEN_LOOP ; /
LDY $15EA,x ; get offset to sprite OAM
LDA $E4,x ; \
SEC ; |
SBC $1A ; | $00 = sprite x position relative to screen boarder
STA $00 ; /
LDA $D8,x ; \
SEC ; |
SBC $1C ; | $01 = sprite y position relative to screen boarder
STA $01 ; /
RTS ; return
INVALID PLA ; \ return from *main gfx routine* subroutine...
PLA ; | ...(not just this subroutine)
RTS ; /
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; SUB_OFF_SCREEN
; This subroutine deals with sprites that have moved off screen
; It is adapted from the subroutine at $01AC0D
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T12: db $40,$B0
SPR_T13: db $01,$FF
SPR_T14: db $30,$C0,$A0,$C0,$A0,$F0,$60,$90 ;bank 1 sizes
db $30,$C0,$A0,$80,$A0,$40,$60,$B0 ;bank 3 sizes
SPR_T15: db $01,$FF,$01,$FF,$01,$FF,$01,$FF ;bank 1 sizes
db $01,$FF,$01,$FF,$01,$00,$01,$FF ;bank 3 sizes
SUB_OFF_SCREEN_X1: LDA #$02 ; \ entry point of routine determines value of $03
BRA STORE_03 ; | (table entry to use on horizontal levels)
SUB_OFF_SCREEN_X2: LDA #$04 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X3: LDA #$06 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X4: LDA #$08 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X5: LDA #$0A ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X6: LDA #$0C ; |
BRA STORE_03 ; | OMG YOU FOUND THIS HIDDEN z0mg place!111 you win a cookie!
SUB_OFF_SCREEN_X7: LDA #$0E ; |
STORE_03: STA $03 ; |
BRA START_SUB ; |
SUB_OFF_SCREEN_X0: STZ $03 ; /
START_SUB: JSR SUB_IS_OFF_SCREEN ; \ if sprite is not off screen, return
BEQ RETURN_35 ; /
LDA $5B ; \ goto VERTICAL_LEVEL if vertical level
AND #$01 ; |
BNE VERTICAL_LEVEL ; /
LDA $D8,x ; \
CLC ; |
ADC #$50 ; | if the sprite has gone off the bottom of the level...
LDA $14D4,x ; | (if adding 0x50 to the sprite y position would make the high byte >= 2)
ADC #$00 ; |
CMP #$02 ; |
BPL ERASE_SPRITE ; / ...erase the sprite
LDA $167A,x ; \ if "process offscreen" flag is set, return
AND #$04 ; |
BNE RETURN_35 ; /
LDA $13 ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0756 VC:176 00 FL:205
AND #$01 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0780 VC:176 00 FL:205
ORA $03 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0796 VC:176 00 FL:205
STA $01 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0820 VC:176 00 FL:205
TAY ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0844 VC:176 00 FL:205
LDA $1A ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0858 VC:176 00 FL:205
CLC ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0882 VC:176 00 FL:205
ADC SPR_T14,y ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0896 VC:176 00 FL:205
ROL $00 ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizcHC:0928 VC:176 00 FL:205
CMP $E4,x ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:0966 VC:176 00 FL:205
PHP ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:0996 VC:176 00 FL:205
LDA $1B ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdizCHC:1018 VC:176 00 FL:205
LSR $00 ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdiZCHC:1042 VC:176 00 FL:205
ADC SPR_T15,y ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdizcHC:1080 VC:176 00 FL:205
PLP ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F0 P:eNvMXdizcHC:1112 VC:176 00 FL:205
SBC $14E0,x ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1140 VC:176 00 FL:205
STA $00 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:1172 VC:176 00 FL:205
LSR $01 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:1196 VC:176 00 FL:205
BCC SPR_L31 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZCHC:1234 VC:176 00 FL:205
EOR #$80 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZCHC:1250 VC:176 00 FL:205
STA $00 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1266 VC:176 00 FL:205
SPR_L31: LDA $00 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1290 VC:176 00 FL:205
BPL RETURN_35 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1314 VC:176 00 FL:205
ERASE_SPRITE: LDA $14C8,x ; \ if sprite status < 8, permanently erase sprite
CMP #$08 ; |
BCC KILL_SPRITE ; /
LDY $161A,x ;A:FF08 X:0007 Y:0001 D:0000 DB:01 S:01F3 P:envMXdiZCHC:1108 VC:059 00 FL:2878
CPY #$FF ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdiZCHC:1140 VC:059 00 FL:2878
BEQ KILL_SPRITE ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdizcHC:1156 VC:059 00 FL:2878
LDA #$00 ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdizcHC:1172 VC:059 00 FL:2878
STA $1938,y ;A:FF00 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdiZcHC:1188 VC:059 00 FL:2878
KILL_SPRITE: STZ $14C8,x ; erase sprite
RETURN_35: RTS ; return
VERTICAL_LEVEL: LDA $167A,x ; \ if "process offscreen" flag is set, return
AND #$04 ; |
BNE RETURN_35 ; /
LDA $13 ; \
LSR A ; |
BCS RETURN_35 ; /
LDA $E4,x ; \
CMP #$00 ; | if the sprite has gone off the side of the level...
LDA $14E0,x ; |
SBC #$00 ; |
CMP #$02 ; |
BCS ERASE_SPRITE ; / ...erase the sprite
LDA $13 ;A:0000 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:1218 VC:250 00 FL:5379
LSR A ;A:0016 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1242 VC:250 00 FL:5379
AND #$01 ;A:000B X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1256 VC:250 00 FL:5379
STA $01 ;A:0001 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1272 VC:250 00 FL:5379
TAY ;A:0001 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1296 VC:250 00 FL:5379
LDA $1C ;A:001A X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0052 VC:251 00 FL:5379
CLC ;A:00BD X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0076 VC:251 00 FL:5379
ADC SPR_T12,y ;A:00BD X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0090 VC:251 00 FL:5379
ROL $00 ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:enVMXdizCHC:0122 VC:251 00 FL:5379
CMP $D8,x ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0160 VC:251 00 FL:5379
PHP ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0190 VC:251 00 FL:5379
LDA $001D ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F2 P:eNVMXdizcHC:0212 VC:251 00 FL:5379
LSR $00 ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:enVMXdiZcHC:0244 VC:251 00 FL:5379
ADC SPR_T13,y ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:enVMXdizCHC:0282 VC:251 00 FL:5379
PLP ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:envMXdiZCHC:0314 VC:251 00 FL:5379
SBC $14D4,x ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0342 VC:251 00 FL:5379
STA $00 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0374 VC:251 00 FL:5379
LDY $01 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0398 VC:251 00 FL:5379
BEQ SPR_L38 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0422 VC:251 00 FL:5379
EOR #$80 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0438 VC:251 00 FL:5379
STA $00 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0454 VC:251 00 FL:5379
SPR_L38: LDA $00 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0478 VC:251 00 FL:5379
BPL RETURN_35 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0502 VC:251 00 FL:5379
BMI ERASE_SPRITE ;A:8AFF X:0002 Y:0000 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0704 VC:184 00 FL:5490
SUB_IS_OFF_SCREEN: LDA $15A0,x ; \ if sprite is on screen, accumulator = 0
ORA $186C,x ; |
RTS ; / return
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; SUB HORZ POS
;
; $B817 - horizontal mario/sprite check - shared
; Y = 1 if mario left of sprite??
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;org $03B817
SUB_HORZ_POS: LDY #$00 ;A:25D0 X:0006 Y:0001 D:0000 DB:03 S:01ED P:eNvMXdizCHC:1020 VC:097 00 FL:31642
LDA $94 ;A:25D0 X:0006 Y:0000 D:0000 DB:03 S:01ED P:envMXdiZCHC:1036 VC:097 00 FL:31642
SEC ;A:25F0 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizCHC:1060 VC:097 00 FL:31642
SBC $E4,x ;A:25F0 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizCHC:1074 VC:097 00 FL:31642
STA $0F ;A:25F4 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1104 VC:097 00 FL:31642
LDA $95 ;A:25F4 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1128 VC:097 00 FL:31642
SBC $14E0,x ;A:2500 X:0006 Y:0000 D:0000 DB:03 S:01ED P:envMXdiZcHC:1152 VC:097 00 FL:31642
BPL LABEL16 ;A:25FF X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1184 VC:097 00 FL:31642
INY ;A:25FF X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1200 VC:097 00 FL:31642
LABEL16: RTS ;A:25FF X:0006 Y:0001 D:0000 DB:03 S:01ED P:envMXdizcHC:1214 VC:097 00 FL:31642
dcb “INIT“
JSR SUB_HORZ_POS ; Aufruf der Routine
TYA ; Verschieben von Y nach A
STA $157C,x ; Speichern in der Tabelle
RTL
JSL $01A7DC
RTS
JSL $01A7DC
BBC NoContact ;oder wie ihr es halt nennen wollt
LDA #$02 ;\
STA $19 ;/ Ja Mario kriegt eine Feder wenn er den Sprite berührt
NoContact ; Oder wie es halt bei euch heißt
RTS
LDA $0E
CMP #$E6
BPL SpriteWins ;Oder wie ihr es halt nennen wollt
SpriteWins: ;Hier ist nun erst mal unser Label
LDA $1490 ;Überprüft ob Mario einen Stern hat
BNE HasStar ;Wenn Stern dann zu Label HasStar
;===========================================
;Killed by Star Routine
;===========================================
HasStar:
LDA $167A,x ;\ Don't disable clipping when killed by a star.
ORA #$01 ; | NOTE: We do this to not make glitched graphics show up ..
STA $167A,x ; | when the sprite is killed by a star.
;/ You can also check this option in the .cfg editor.
LDA #$02 ;\ Set the sprite status to ..
STA $14C8,x ;/ Killed by a star.
LDA #$D0 ;\
STA $AA,x ;/ Set Y speed so sprite falls down.
INC $18D2 ; Increase number of consective enemies stomped/ killed by star.
LDA $18D2 ; IF consecutive # of enemies killed by star/stomped ..
CMP #$08 ; IS 8 ..
BCC NotEight
LDA #$08 ;\ Keep it static at 8, because you get 1-ups all the time afterwards.
STA $18D2 ;/
NotEight:
JSL $02ACE5 ; This code calls the "give points" routine.
LDY $18D2 ; Get consecutive # of enemies stomped in Y.
CPY #$08 ; If it's less than 8 once again, return.
BCC NoSound
LDA StarSFX,y ;\
STA $1DF9 ;/ Play sounds depending on how many enemies were stomped/killed by star.
NoSound:
RTS ; Return.
StarSFX: dcb $00,$13,$14,$15,$16,$17,$18,$19
JSL $01AB99 ; Anzeigen der Kontaktgrafiken
JSL $01AA33 ; Verhindert das Mario weiter runter fällt wenn er auf den Sprite trifft
LDA #$10 ;\
STA $AA,x ; |Sprite fällt runter wenn er getroffen wird
LDA #$02 ; |Wird von einem Stern getötet
STA $14C8,x ; |neue Y Geschwindigkeit
JSL $01802A ; |Abspielen des Soundeffektes
LDA #$13 ; |
STA $1DF9 ;/
dcb "INIT"
JSR SUB_HORZ_POS
TYA
STA $157C,x
RTL
dcb "MAIN"
PHB ;\
PHK ; | Change the data bank to the one our code is running from.
PLB ; | This is a good practice.
JSR SpriteCode ; | Jump to the sprite's function.
PLB ; | Restore old data bank.
RTL ;/ And return.
;===================================
;Sprite Function
;===================================
RETURN: RTS
SpriteCode:
JSR Graphics
LDA $14C8,x ;\
CMP #$08 ; | If sprite dead,
BNE RETURN ;/ Return.
LDA $9D ;\
BNE RETURN ;/ If locked, return.
JSR SUB_OFF_SCREEN_X0 ; Handle offscreen.
LDA $1588,x ; ... if sprite is touching a wall.
AND #$03 ; (bit 0 and 1)..
BEQ DontFlip ; If bits aren't set, don't flip the sprite.
LDA $157C,x ;\
EOR #$01 ; | Flip sprite's direction when touching wall.
STA $157C,x ;/
DontFlip:
LDA $1588,x
AND #$04 ; If the sprite is in air ..
BEQ NotOnGround ; Don't set speeds and branch.
LDY $157C,x ;\ Get direction into Y.
LDA XSPEED,y ; | Load X speed indexed by Y.
STA $B6,x ;/ Store to X speed table.
LDA #$10 ;\ Y Speed for sprite on ground
STA $AA,x ;/ = 10.
NotOnGround:
JSL $01802A ; Apply speed.
JSL $018032 ; Make the sprite interact with others. Make sure the .cfg setting for this
; is off!
JSL $01A7DC
BCC NoContact
LDA $0E ;\
CMP #$E6 ; | Determine if Mario touches sprite from sides.
BPL SpriteWins ;/ If he does, branch.
;===========================================
;Mario Hurts Sprite
;===========================================
JSL $01AA33 ;\ Set mario speed.
JSL $01AB99 ;/ Display contact graphic.
LDA #$10 ;\
STA $AA,x ; | Make sprite fall.
JSL $01802A ; |
LDA #$02 ; |
STA $14C8,x ;/
LDA #$13 ;\
STA $1DF9 ;/ Play sound.
RTS
;===========================================
;Sprite Hurts Mario
;===========================================
SpriteWins:
LDA $1490 ;\ IF Mario has star power ..
BNE HasStar ;/ Kill sprite.
JSL $00F5B7 ;\ Otherwise, hurt Mario.
NoContact:
RTS
XSPEED: dcb $08,$F8
;===========================================
;Killed by Star Routine
;===========================================
HasStar:
LDA $167A,x ;\ Don't disable clipping when killed by a star.
ORA #$01 ; | NOTE: We do this to not make glitched graphics show up ..
STA $167A,x ; | when the sprite is killed by a star.
;/ You can also check this option in the .cfg editor.
LDA #$02 ;\ Set the sprite status to ..
STA $14C8,x ;/ Killed by a star.
LDA #$D0 ;\
STA $AA,x ;/ Set Y speed so sprite falls down.
INC $18D2 ; Increase number of consective enemies stomped/ killed by star.
LDA $18D2 ; IF consecutive # of enemies killed by star/stomped ..
CMP #$08 ; IS 8 ..
BCC NotEight
LDA #$08 ;\ Keep it static at 8, because you get 1-ups all the time afterwards.
STA $18D2 ;/
NotEight:
JSL $02ACE5 ; This code calls the "give points" routine.
LDY $18D2 ; Get consecutive # of enemies stomped in Y.
CPY #$08 ; If it's less than 8 once again, return.
BCC NoSound
LDA StarSFX,y ;\
STA $1DF9 ;/ Play sounds depending on how many enemies were stomped/killed by star.
NoSound:
RTS ; Return.
StarSFX: dcb $00,$13,$14,$15,$16,$17,$18,$19
;===================================
;Graphics Code
;===================================
TILEMAP: dcb $CA,$CC
PROPERTIES: dcb $67,$27 ; NOTE: Flip the X direction when going right.
Graphics:
JSR GET_DRAW_INFO ; Before actually coding the graphics, we need a routine that will get the current sprite's value
; into the OAM.
; The OAM being a place where the tile data for the current sprite will be stored.
LDA $157C,x
STA $02 ; Store direction to $02 for use with property routine later.
LDA $00 ;\
STA $0300,y ;/ Draw the X position of the sprite
LDA $01 ;\
STA $0301,y ;/ Draw the Y position of the sprite
PHX
LDA $14
LSR
LSR
LSR
AND #$01
TAX
LDA TILEMAP,x
STA $0302,y
LDX $02 ; We already pushed X, so we don't need to push it again.
LDA PROPERTIES,x ; Get properties indexed by direction ..
ORA $64
STA $0303,y ; Store to properties byte.
PLX ; Pull back X.
INY ;\
INY ; | The OAM is 8x8, but our sprite is 16x16 ..
INY ; | So increment it 4 times.
INY ;/
LDY #$02 ; Y ends with the tile size .. 02 means it's 16x16
LDA #$00 ; A -> number of tiles drawn - 1.
; I drew only 1 tile so I put in 1-1 = 00.
JSL $01B7B3 ; Call the routine that draws the sprite.
RTS ; Never forget this!
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; GET_DRAW_INFO
; This is a helper for the graphics routine. It sets off screen flags, and sets up
; variables. It will return with the following:
;
; Y = index to sprite OAM ($300)
; $00 = sprite x position relative to screen boarder
; $01 = sprite y position relative to screen boarder
;
; It is adapted from the subroutine at $03B760
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T1 dcb $0C,$1C
SPR_T2 dcb $01,$02
GET_DRAW_INFO STZ $186C,x ; reset sprite offscreen flag, vertical
STZ $15A0,x ; reset sprite offscreen flag, horizontal
LDA $E4,x ; \
CMP $1A ; | set horizontal offscreen if necessary
LDA $14E0,x ; |
SBC $1B ; |
BEQ ON_SCREEN_X ; |
INC $15A0,x ; /
ON_SCREEN_X LDA $14E0,x ; \
XBA ; |
LDA $E4,x ; |
REP #$20 ; |
SEC ; |
SBC $1A ; | mark sprite invalid if far enough off screen
CLC ; |
ADC.W #$0040 ; |
CMP.W #$0180 ; |
SEP #$20 ; |
ROL A ; |
AND #$01 ; |
STA $15C4,x ; /
BNE INVALID ;
LDY #$00 ; \ set up loop:
LDA $1662,x ; |
AND #$20 ; | if not smushed (1662 & 0x20), go through loop twice
BEQ ON_SCREEN_LOOP ; | else, go through loop once
INY ; /
ON_SCREEN_LOOP LDA $D8,x ; \
CLC ; | set vertical offscreen if necessary
ADC SPR_T1,y ; |
PHP ; |
CMP $1C ; | (vert screen boundry)
ROL $00 ; |
PLP ; |
LDA $14D4,x ; |
ADC #$00 ; |
LSR $00 ; |
SBC $1D ; |
BEQ ON_SCREEN_Y ; |
LDA $186C,x ; | (vert offscreen)
ORA SPR_T2,y ; |
STA $186C,x ; |
ON_SCREEN_Y DEY ; |
BPL ON_SCREEN_LOOP ; /
LDY $15EA,x ; get offset to sprite OAM
LDA $E4,x ; \
SEC ; |
SBC $1A ; | $00 = sprite x position relative to screen boarder
STA $00 ; /
LDA $D8,x ; \
SEC ; |
SBC $1C ; | $01 = sprite y position relative to screen boarder
STA $01 ; /
RTS ; return
INVALID PLA ; \ return from *main gfx routine* subroutine...
PLA ; | ...(not just this subroutine)
RTS ; /
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; SUB_OFF_SCREEN
; This subroutine deals with sprites that have moved off screen
; It is adapted from the subroutine at $01AC0D
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T12: db $40,$B0
SPR_T13: db $01,$FF
SPR_T14: db $30,$C0,$A0,$C0,$A0,$F0,$60,$90 ;bank 1 sizes
db $30,$C0,$A0,$80,$A0,$40,$60,$B0 ;bank 3 sizes
SPR_T15: db $01,$FF,$01,$FF,$01,$FF,$01,$FF ;bank 1 sizes
db $01,$FF,$01,$FF,$01,$00,$01,$FF ;bank 3 sizes
SUB_OFF_SCREEN_X1: LDA #$02 ; \ entry point of routine determines value of $03
BRA STORE_03 ; | (table entry to use on horizontal levels)
SUB_OFF_SCREEN_X2: LDA #$04 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X3: LDA #$06 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X4: LDA #$08 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X5: LDA #$0A ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X6: LDA #$0C ; |
BRA STORE_03 ; | OMG YOU FOUND THIS HIDDEN z0mg place!111 you win a cookie!
SUB_OFF_SCREEN_X7: LDA #$0E ; |
STORE_03: STA $03 ; |
BRA START_SUB ; |
SUB_OFF_SCREEN_X0: STZ $03 ; /
START_SUB: JSR SUB_IS_OFF_SCREEN ; \ if sprite is not off screen, return
BEQ RETURN_35 ; /
LDA $5B ; \ goto VERTICAL_LEVEL if vertical level
AND #$01 ; |
BNE VERTICAL_LEVEL ; /
LDA $D8,x ; \
CLC ; |
ADC #$50 ; | if the sprite has gone off the bottom of the level...
LDA $14D4,x ; | (if adding 0x50 to the sprite y position would make the high byte >= 2)
ADC #$00 ; |
CMP #$02 ; |
BPL ERASE_SPRITE ; / ...erase the sprite
LDA $167A,x ; \ if "process offscreen" flag is set, return
AND #$04 ; |
BNE RETURN_35 ; /
LDA $13 ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0756 VC:176 00 FL:205
AND #$01 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0780 VC:176 00 FL:205
ORA $03 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0796 VC:176 00 FL:205
STA $01 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0820 VC:176 00 FL:205
TAY ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0844 VC:176 00 FL:205
LDA $1A ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0858 VC:176 00 FL:205
CLC ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0882 VC:176 00 FL:205
ADC SPR_T14,y ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0896 VC:176 00 FL:205
ROL $00 ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizcHC:0928 VC:176 00 FL:205
CMP $E4,x ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:0966 VC:176 00 FL:205
PHP ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:0996 VC:176 00 FL:205
LDA $1B ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdizCHC:1018 VC:176 00 FL:205
LSR $00 ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdiZCHC:1042 VC:176 00 FL:205
ADC SPR_T15,y ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdizcHC:1080 VC:176 00 FL:205
PLP ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F0 P:eNvMXdizcHC:1112 VC:176 00 FL:205
SBC $14E0,x ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1140 VC:176 00 FL:205
STA $00 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:1172 VC:176 00 FL:205
LSR $01 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:1196 VC:176 00 FL:205
BCC SPR_L31 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZCHC:1234 VC:176 00 FL:205
EOR #$80 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZCHC:1250 VC:176 00 FL:205
STA $00 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1266 VC:176 00 FL:205
SPR_L31: LDA $00 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1290 VC:176 00 FL:205
BPL RETURN_35 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1314 VC:176 00 FL:205
ERASE_SPRITE: LDA $14C8,x ; \ if sprite status < 8, permanently erase sprite
CMP #$08 ; |
BCC KILL_SPRITE ; /
LDY $161A,x ;A:FF08 X:0007 Y:0001 D:0000 DB:01 S:01F3 P:envMXdiZCHC:1108 VC:059 00 FL:2878
CPY #$FF ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdiZCHC:1140 VC:059 00 FL:2878
BEQ KILL_SPRITE ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdizcHC:1156 VC:059 00 FL:2878
LDA #$00 ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdizcHC:1172 VC:059 00 FL:2878
STA $1938,y ;A:FF00 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdiZcHC:1188 VC:059 00 FL:2878
KILL_SPRITE: STZ $14C8,x ; erase sprite
RETURN_35: RTS ; return
VERTICAL_LEVEL: LDA $167A,x ; \ if "process offscreen" flag is set, return
AND #$04 ; |
BNE RETURN_35 ; /
LDA $13 ; \
LSR A ; |
BCS RETURN_35 ; /
LDA $E4,x ; \
CMP #$00 ; | if the sprite has gone off the side of the level...
LDA $14E0,x ; |
SBC #$00 ; |
CMP #$02 ; |
BCS ERASE_SPRITE ; / ...erase the sprite
LDA $13 ;A:0000 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:1218 VC:250 00 FL:5379
LSR A ;A:0016 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1242 VC:250 00 FL:5379
AND #$01 ;A:000B X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1256 VC:250 00 FL:5379
STA $01 ;A:0001 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1272 VC:250 00 FL:5379
TAY ;A:0001 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1296 VC:250 00 FL:5379
LDA $1C ;A:001A X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0052 VC:251 00 FL:5379
CLC ;A:00BD X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0076 VC:251 00 FL:5379
ADC SPR_T12,y ;A:00BD X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0090 VC:251 00 FL:5379
ROL $00 ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:enVMXdizCHC:0122 VC:251 00 FL:5379
CMP $D8,x ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0160 VC:251 00 FL:5379
PHP ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0190 VC:251 00 FL:5379
LDA $001D ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F2 P:eNVMXdizcHC:0212 VC:251 00 FL:5379
LSR $00 ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:enVMXdiZcHC:0244 VC:251 00 FL:5379
ADC SPR_T13,y ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:enVMXdizCHC:0282 VC:251 00 FL:5379
PLP ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:envMXdiZCHC:0314 VC:251 00 FL:5379
SBC $14D4,x ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0342 VC:251 00 FL:5379
STA $00 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0374 VC:251 00 FL:5379
LDY $01 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0398 VC:251 00 FL:5379
BEQ SPR_L38 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0422 VC:251 00 FL:5379
EOR #$80 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0438 VC:251 00 FL:5379
STA $00 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0454 VC:251 00 FL:5379
SPR_L38: LDA $00 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0478 VC:251 00 FL:5379
BPL RETURN_35 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0502 VC:251 00 FL:5379
BMI ERASE_SPRITE ;A:8AFF X:0002 Y:0000 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0704 VC:184 00 FL:5490
SUB_IS_OFF_SCREEN: LDA $15A0,x ; \ if sprite is on screen, accumulator = 0
ORA $186C,x ; |
RTS ; / return
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; SUB HORZ POS
;
; $B817 - horizontal mario/sprite check - shared
; Y = 1 if mario left of sprite??
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;org $03B817
SUB_HORZ_POS: LDY #$00 ;A:25D0 X:0006 Y:0001 D:0000 DB:03 S:01ED P:eNvMXdizCHC:1020 VC:097 00 FL:31642
LDA $94 ;A:25D0 X:0006 Y:0000 D:0000 DB:03 S:01ED P:envMXdiZCHC:1036 VC:097 00 FL:31642
SEC ;A:25F0 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizCHC:1060 VC:097 00 FL:31642
SBC $E4,x ;A:25F0 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizCHC:1074 VC:097 00 FL:31642
STA $0F ;A:25F4 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1104 VC:097 00 FL:31642
LDA $95 ;A:25F4 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1128 VC:097 00 FL:31642
SBC $14E0,x ;A:2500 X:0006 Y:0000 D:0000 DB:03 S:01ED P:envMXdiZcHC:1152 VC:097 00 FL:31642
BPL LABEL16 ;A:25FF X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1184 VC:097 00 FL:31642
INY ;A:25FF X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1200 VC:097 00 FL:31642
LABEL16: RTS ;A:25FF X:0006 Y:0001 D:0000 DB:03 S:01ED P:envMXdizcHC:1214 VC:097 00 FL:31642
JSL $01AB99
JSL $01AA33
LDA $140D ;Spinjump?
ORA $187A ; Yoshi?
BNE SpinKill ;Oder wie das dann halt bei euch heißt
LDA #$10
STA $AA,x
;Rest des Codes für normales Sterben
SpinKill ;das Label
LDA #$04 ;\
STA $14C8,x ;/ Spritestatus 4 (getötet durch einen Spinjump)
LDA #$08 ;\
STA $1DF9 ;/ Spinjump Soundeffekt abspielen
JSL $07FC3B ; Animationseffekt für den Spinjump
RTS
dcb "INIT"
JSR SUB_HORZ_POS
TYA
STA $157C,x
RTL
dcb "MAIN"
PHB ;\
PHK ; | Change the data bank to the one our code is running from.
PLB ; | This is a good practice.
JSR SpriteCode ; | Jump to the sprite's function.
PLB ; | Restore old data bank.
RTL ;/ And return.
;===================================
;Sprite Function
;===================================
RETURN: RTS
SpriteCode:
JSR Graphics
LDA $14C8,x ;\
CMP #$08 ; | If sprite dead,
BNE RETURN ;/ Return.
LDA $9D ;\
BNE RETURN ;/ If locked, return.
JSR SUB_OFF_SCREEN_X0 ; Handle offscreen.
LDA $1588,x ; ... if sprite is touching a wall.
AND #$03 ; (bit 0 and 1)..
BEQ DontFlip ; If bits aren't set, don't flip the sprite.
LDA $157C,x ;\
EOR #$01 ; | Flip sprite's direction when touching wall.
STA $157C,x ;/
DontFlip:
LDA $1588,x
AND #$04 ; If the sprite is in air ..
BEQ NotOnGround ; Don't set speeds and branch.
LDY $157C,x ;\ Get direction into Y.
LDA XSPEED,y ; | Load X speed indexed by Y.
STA $B6,x ;/ Store to X speed table.
LDA #$10 ;\ Y Speed for sprite on ground
STA $AA,x ;/ = 10.
NotOnGround:
JSL $01802A ; Apply speed.
JSL $018032 ; Make the sprite interact with others. Make sure the .cfg setting for this
; is off!
JSL $01A7DC
BCC NoContact
LDA $0E ;\
CMP #$E6 ; | Determine if Mario touches sprite from sides.
BPL SpriteWins ;/ If he does, branch.
;===========================================
;Mario Hurts Sprite
;===========================================
JSL $01AA33 ;\ Set mario speed.
JSL $01AB99 ;/ Display contact graphic.
LDA $140D ; IF spin-jumping ..
BNE SpinKill ; Go to spin kill.
LDA #$10 ;\
STA $AA,x ; | Make sprite fall.
JSL $01802A ; |
LDA #$02 ; |
STA $14C8,x ;/
LDA #$13 ;\
STA $1DF9 ;/ Play sound.
RTS
SpinKill:
LDA #$04 ;\
STA $14C8,x ;/ Sprite status = killed by a spin-jump.
LDA #$08 ;\
STA $1DF9 ;/ Sound to play.
JSL $07FC3B ; Show star animation effect.
RTS
;===========================================
;Sprite Hurts Mario
;===========================================
SpriteWins:
LDA $1490 ;\ IF Mario has star power ..
BNE HasStar ;/ Kill sprite.
JSL $00F5B7 ;\ Otherwise, hurt Mario.
NoContact:
RTS
XSPEED: dcb $08,$F8
;===========================================
;Killed by Star Routine
;===========================================
HasStar:
LDA $167A,x ;\ Don't disable clipping when killed by a star.
ORA #$01 ; | NOTE: We do this to not make glitched graphics show up ..
STA $167A,x ; | when the sprite is killed by a star.
;/ You can also check this option in the .cfg editor.
LDA #$02 ;\ Set the sprite status to ..
STA $14C8,x ;/ Killed by a star.
LDA #$D0 ;\
STA $AA,x ;/ Set Y speed so sprite falls down.
INC $18D2 ; Increase number of consective enemies stomped/ killed by star.
LDA $18D2 ; IF consecutive # of enemies killed by star/stomped ..
CMP #$08 ; IS 8 ..
BCC NotEight
LDA #$08 ;\ Keep it static at 8, because you get 1-ups all the time afterwards.
STA $18D2 ;/
NotEight:
JSL $02ACE5 ; This code calls the "give points" routine.
LDY $18D2 ; Get consecutive # of enemies stomped in Y.
CPY #$08 ; If it's less than 8 once again, return.
BCC NoSound
LDA StarSFX,y ;\
STA $1DF9 ;/ Play sounds depending on how many enemies were stomped/killed by star.
NoSound:
RTS ; Return.
StarSFX: dcb $00,$13,$14,$15,$16,$17,$18,$19
;===================================
;Graphics Code
;===================================
TILEMAP: dcb $CA,$CC
PROPERTIES: dcb $67,$27 ; NOTE: Flip the X direction when going right.
Graphics:
JSR GET_DRAW_INFO ; Before actually coding the graphics, we need a routine that will get the current sprite's value
; into the OAM.
; The OAM being a place where the tile data for the current sprite will be stored.
LDA $157C,x
STA $02 ; Store direction to $02 for use with property routine later.
LDA $00 ;\
STA $0300,y ;/ Draw the X position of the sprite
LDA $01 ;\
STA $0301,y ;/ Draw the Y position of the sprite
PHX
LDA $14
LSR
LSR
LSR
AND #$01
TAX
LDA TILEMAP,x
STA $0302,y
LDX $02 ; We already pushed X, so we don't need to push it again.
LDA PROPERTIES,x ; Get properties indexed by direction ..
ORA $64
STA $0303,y ; Store to properties byte.
PLX ; Pull back X.
INY ;\
INY ; | The OAM is 8x8, but our sprite is 16x16 ..
INY ; | So increment it 4 times.
INY ;/
LDY #$02 ; Y ends with the tile size .. 02 means it's 16x16
LDA #$00 ; A -> number of tiles drawn - 1.
; I drew only 1 tile so I put in 1-1 = 00.
JSL $01B7B3 ; Call the routine that draws the sprite.
RTS ; Never forget this!
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; GET_DRAW_INFO
; This is a helper for the graphics routine. It sets off screen flags, and sets up
; variables. It will return with the following:
;
; Y = index to sprite OAM ($300)
; $00 = sprite x position relative to screen boarder
; $01 = sprite y position relative to screen boarder
;
; It is adapted from the subroutine at $03B760
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T1 dcb $0C,$1C
SPR_T2 dcb $01,$02
GET_DRAW_INFO STZ $186C,x ; reset sprite offscreen flag, vertical
STZ $15A0,x ; reset sprite offscreen flag, horizontal
LDA $E4,x ; \
CMP $1A ; | set horizontal offscreen if necessary
LDA $14E0,x ; |
SBC $1B ; |
BEQ ON_SCREEN_X ; |
INC $15A0,x ; /
ON_SCREEN_X LDA $14E0,x ; \
XBA ; |
LDA $E4,x ; |
REP #$20 ; |
SEC ; |
SBC $1A ; | mark sprite invalid if far enough off screen
CLC ; |
ADC.W #$0040 ; |
CMP.W #$0180 ; |
SEP #$20 ; |
ROL A ; |
AND #$01 ; |
STA $15C4,x ; /
BNE INVALID ;
LDY #$00 ; \ set up loop:
LDA $1662,x ; |
AND #$20 ; | if not smushed (1662 & 0x20), go through loop twice
BEQ ON_SCREEN_LOOP ; | else, go through loop once
INY ; /
ON_SCREEN_LOOP LDA $D8,x ; \
CLC ; | set vertical offscreen if necessary
ADC SPR_T1,y ; |
PHP ; |
CMP $1C ; | (vert screen boundry)
ROL $00 ; |
PLP ; |
LDA $14D4,x ; |
ADC #$00 ; |
LSR $00 ; |
SBC $1D ; |
BEQ ON_SCREEN_Y ; |
LDA $186C,x ; | (vert offscreen)
ORA SPR_T2,y ; |
STA $186C,x ; |
ON_SCREEN_Y DEY ; |
BPL ON_SCREEN_LOOP ; /
LDY $15EA,x ; get offset to sprite OAM
LDA $E4,x ; \
SEC ; |
SBC $1A ; | $00 = sprite x position relative to screen boarder
STA $00 ; /
LDA $D8,x ; \
SEC ; |
SBC $1C ; | $01 = sprite y position relative to screen boarder
STA $01 ; /
RTS ; return
INVALID PLA ; \ return from *main gfx routine* subroutine...
PLA ; | ...(not just this subroutine)
RTS ; /
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; SUB_OFF_SCREEN
; This subroutine deals with sprites that have moved off screen
; It is adapted from the subroutine at $01AC0D
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T12: db $40,$B0
SPR_T13: db $01,$FF
SPR_T14: db $30,$C0,$A0,$C0,$A0,$F0,$60,$90 ;bank 1 sizes
db $30,$C0,$A0,$80,$A0,$40,$60,$B0 ;bank 3 sizes
SPR_T15: db $01,$FF,$01,$FF,$01,$FF,$01,$FF ;bank 1 sizes
db $01,$FF,$01,$FF,$01,$00,$01,$FF ;bank 3 sizes
SUB_OFF_SCREEN_X1: LDA #$02 ; \ entry point of routine determines value of $03
BRA STORE_03 ; | (table entry to use on horizontal levels)
SUB_OFF_SCREEN_X2: LDA #$04 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X3: LDA #$06 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X4: LDA #$08 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X5: LDA #$0A ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X6: LDA #$0C ; |
BRA STORE_03 ; | OMG YOU FOUND THIS HIDDEN z0mg place!111 you win a cookie!
SUB_OFF_SCREEN_X7: LDA #$0E ; |
STORE_03: STA $03 ; |
BRA START_SUB ; |
SUB_OFF_SCREEN_X0: STZ $03 ; /
START_SUB: JSR SUB_IS_OFF_SCREEN ; \ if sprite is not off screen, return
BEQ RETURN_35 ; /
LDA $5B ; \ goto VERTICAL_LEVEL if vertical level
AND #$01 ; |
BNE VERTICAL_LEVEL ; /
LDA $D8,x ; \
CLC ; |
ADC #$50 ; | if the sprite has gone off the bottom of the level...
LDA $14D4,x ; | (if adding 0x50 to the sprite y position would make the high byte >= 2)
ADC #$00 ; |
CMP #$02 ; |
BPL ERASE_SPRITE ; / ...erase the sprite
LDA $167A,x ; \ if "process offscreen" flag is set, return
AND #$04 ; |
BNE RETURN_35 ; /
LDA $13 ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0756 VC:176 00 FL:205
AND #$01 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0780 VC:176 00 FL:205
ORA $03 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0796 VC:176 00 FL:205
STA $01 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0820 VC:176 00 FL:205
TAY ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0844 VC:176 00 FL:205
LDA $1A ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0858 VC:176 00 FL:205
CLC ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0882 VC:176 00 FL:205
ADC SPR_T14,y ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0896 VC:176 00 FL:205
ROL $00 ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizcHC:0928 VC:176 00 FL:205
CMP $E4,x ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:0966 VC:176 00 FL:205
PHP ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:0996 VC:176 00 FL:205
LDA $1B ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdizCHC:1018 VC:176 00 FL:205
LSR $00 ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdiZCHC:1042 VC:176 00 FL:205
ADC SPR_T15,y ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdizcHC:1080 VC:176 00 FL:205
PLP ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F0 P:eNvMXdizcHC:1112 VC:176 00 FL:205
SBC $14E0,x ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1140 VC:176 00 FL:205
STA $00 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:1172 VC:176 00 FL:205
LSR $01 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:1196 VC:176 00 FL:205
BCC SPR_L31 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZCHC:1234 VC:176 00 FL:205
EOR #$80 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZCHC:1250 VC:176 00 FL:205
STA $00 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1266 VC:176 00 FL:205
SPR_L31: LDA $00 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1290 VC:176 00 FL:205
BPL RETURN_35 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1314 VC:176 00 FL:205
ERASE_SPRITE: LDA $14C8,x ; \ if sprite status < 8, permanently erase sprite
CMP #$08 ; |
BCC KILL_SPRITE ; /
LDY $161A,x ;A:FF08 X:0007 Y:0001 D:0000 DB:01 S:01F3 P:envMXdiZCHC:1108 VC:059 00 FL:2878
CPY #$FF ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdiZCHC:1140 VC:059 00 FL:2878
BEQ KILL_SPRITE ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdizcHC:1156 VC:059 00 FL:2878
LDA #$00 ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdizcHC:1172 VC:059 00 FL:2878
STA $1938,y ;A:FF00 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdiZcHC:1188 VC:059 00 FL:2878
KILL_SPRITE: STZ $14C8,x ; erase sprite
RETURN_35: RTS ; return
VERTICAL_LEVEL: LDA $167A,x ; \ if "process offscreen" flag is set, return
AND #$04 ; |
BNE RETURN_35 ; /
LDA $13 ; \
LSR A ; |
BCS RETURN_35 ; /
LDA $E4,x ; \
CMP #$00 ; | if the sprite has gone off the side of the level...
LDA $14E0,x ; |
SBC #$00 ; |
CMP #$02 ; |
BCS ERASE_SPRITE ; / ...erase the sprite
LDA $13 ;A:0000 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:1218 VC:250 00 FL:5379
LSR A ;A:0016 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1242 VC:250 00 FL:5379
AND #$01 ;A:000B X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1256 VC:250 00 FL:5379
STA $01 ;A:0001 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1272 VC:250 00 FL:5379
TAY ;A:0001 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1296 VC:250 00 FL:5379
LDA $1C ;A:001A X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0052 VC:251 00 FL:5379
CLC ;A:00BD X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0076 VC:251 00 FL:5379
ADC SPR_T12,y ;A:00BD X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0090 VC:251 00 FL:5379
ROL $00 ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:enVMXdizCHC:0122 VC:251 00 FL:5379
CMP $D8,x ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0160 VC:251 00 FL:5379
PHP ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0190 VC:251 00 FL:5379
LDA $001D ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F2 P:eNVMXdizcHC:0212 VC:251 00 FL:5379
LSR $00 ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:enVMXdiZcHC:0244 VC:251 00 FL:5379
ADC SPR_T13,y ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:enVMXdizCHC:0282 VC:251 00 FL:5379
PLP ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:envMXdiZCHC:0314 VC:251 00 FL:5379
SBC $14D4,x ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0342 VC:251 00 FL:5379
STA $00 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0374 VC:251 00 FL:5379
LDY $01 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0398 VC:251 00 FL:5379
BEQ SPR_L38 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0422 VC:251 00 FL:5379
EOR #$80 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0438 VC:251 00 FL:5379
STA $00 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0454 VC:251 00 FL:5379
SPR_L38: LDA $00 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0478 VC:251 00 FL:5379
BPL RETURN_35 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0502 VC:251 00 FL:5379
BMI ERASE_SPRITE ;A:8AFF X:0002 Y:0000 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0704 VC:184 00 FL:5490
SUB_IS_OFF_SCREEN: LDA $15A0,x ; \ if sprite is on screen, accumulator = 0
ORA $186C,x ; |
RTS ; / return
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; SUB HORZ POS
;
; $B817 - horizontal mario/sprite check - shared
; Y = 1 if mario left of sprite??
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;org $03B817
SUB_HORZ_POS: LDY #$00 ;A:25D0 X:0006 Y:0001 D:0000 DB:03 S:01ED P:eNvMXdizCHC:1020 VC:097 00 FL:31642
LDA $94 ;A:25D0 X:0006 Y:0000 D:0000 DB:03 S:01ED P:envMXdiZCHC:1036 VC:097 00 FL:31642
SEC ;A:25F0 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizCHC:1060 VC:097 00 FL:31642
SBC $E4,x ;A:25F0 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizCHC:1074 VC:097 00 FL:31642
STA $0F ;A:25F4 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1104 VC:097 00 FL:31642
LDA $95 ;A:25F4 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1128 VC:097 00 FL:31642
SBC $14E0,x ;A:2500 X:0006 Y:0000 D:0000 DB:03 S:01ED P:envMXdiZcHC:1152 VC:097 00 FL:31642
BPL LABEL16 ;A:25FF X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1184 VC:097 00 FL:31642
INY ;A:25FF X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1200 VC:097 00 FL:31642
LABEL16: RTS ;A:25FF X:0006 Y:0001 D:0000 DB:03 S:01ED P:envMXdizcHC:1214 VC:097 00 FL:31642
dcb "INIT"
JSR SUB_HORZ_POS
TYA
STA $157C,x
RTL
dcb "MAIN"
PHB ;\
PHK ; | Change the data bank to the one our code is running from.
PLB ; | This is a good practice.
JSR SpriteCode ; | Jump to the sprite's function.
PLB ; | Restore old data bank.
RTL ;/ And return.
;===================================
;Sprite Function
;===================================
RETURN: RTS
SpriteCode:
JSR Graphics
LDA $14C8,x ;\
CMP #$08 ; | If sprite dead,
BNE RETURN ;/ Return.
LDA $9D ;\
BNE RETURN ;/ If locked, return.
JSR SUB_OFF_SCREEN_X0 ; Handle offscreen.
RTS
;===================================
;Graphics Code
;===================================
PROPERTIES: dcb $47,$07
Graphics:
JSR GET_DRAW_INFO ; Before actually coding the graphics, we need a routine that will get the current sprite's value
; into the OAM.
; The OAM being a place where the tile data for the current sprite will be stored.
LDA $157C,x
STA $02 ; Store direction to $02 for use with property routine later.
LDA $00 ;\
STA $0300,y ;/ Draw the X position of the sprite
LDA $01 ;\
STA $0301,y ;/ Draw the Y position of the sprite
LDA #$CA
ORA $64
STA $0302,y ; Sprite tile to draw = CA.
PHX
LDX $02 ;
LDA PROPERTIES,x ; Get properties indexed by direction ..
STA $0303,y ; Store to properties byte.
PLX ; Pull back X.
INY ;\
INY ; | The OAM is 8x8, but our sprite is 16x16 ..
INY ; | So increment it 4 times.
INY ;/
LDY #$02 ; Y ends with the tile size .. 02 means it's 16x16
LDA #$00 ; A -> number of tiles drawn - 1.
; I drew only 1 tile so I put in 1-1 = 00.
JSL $01B7B3 ; Call the routine that draws the sprite.
RTS ; Never forget this!
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; GET_DRAW_INFO
; This is a helper for the graphics routine. It sets off screen flags, and sets up
; variables. It will return with the following:
;
; Y = index to sprite OAM ($300)
; $00 = sprite x position relative to screen boarder
; $01 = sprite y position relative to screen boarder
;
; It is adapted from the subroutine at $03B760
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T1 dcb $0C,$1C
SPR_T2 dcb $01,$02
GET_DRAW_INFO STZ $186C,x ; reset sprite offscreen flag, vertical
STZ $15A0,x ; reset sprite offscreen flag, horizontal
LDA $E4,x ; \
CMP $1A ; | set horizontal offscreen if necessary
LDA $14E0,x ; |
SBC $1B ; |
BEQ ON_SCREEN_X ; |
INC $15A0,x ; /
ON_SCREEN_X LDA $14E0,x ; \
XBA ; |
LDA $E4,x ; |
REP #$20 ; |
SEC ; |
SBC $1A ; | mark sprite invalid if far enough off screen
CLC ; |
ADC.W #$0040 ; |
CMP.W #$0180 ; |
SEP #$20 ; |
ROL A ; |
AND #$01 ; |
STA $15C4,x ; /
BNE INVALID ;
LDY #$00 ; \ set up loop:
LDA $1662,x ; |
AND #$20 ; | if not smushed (1662 & 0x20), go through loop twice
BEQ ON_SCREEN_LOOP ; | else, go through loop once
INY ; /
ON_SCREEN_LOOP LDA $D8,x ; \
CLC ; | set vertical offscreen if necessary
ADC SPR_T1,y ; |
PHP ; |
CMP $1C ; | (vert screen boundry)
ROL $00 ; |
PLP ; |
LDA $14D4,x ; |
ADC #$00 ; |
LSR $00 ; |
SBC $1D ; |
BEQ ON_SCREEN_Y ; |
LDA $186C,x ; | (vert offscreen)
ORA SPR_T2,y ; |
STA $186C,x ; |
ON_SCREEN_Y DEY ; |
BPL ON_SCREEN_LOOP ; /
LDY $15EA,x ; get offset to sprite OAM
LDA $E4,x ; \
SEC ; |
SBC $1A ; | $00 = sprite x position relative to screen boarder
STA $00 ; /
LDA $D8,x ; \
SEC ; |
SBC $1C ; | $01 = sprite y position relative to screen boarder
STA $01 ; /
RTS ; return
INVALID PLA ; \ return from *main gfx routine* subroutine...
PLA ; | ...(not just this subroutine)
RTS ; /
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; SUB_OFF_SCREEN
; This subroutine deals with sprites that have moved off screen
; It is adapted from the subroutine at $01AC0D
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T12: db $40,$B0
SPR_T13: db $01,$FF
SPR_T14: db $30,$C0,$A0,$C0,$A0,$F0,$60,$90 ;bank 1 sizes
db $30,$C0,$A0,$80,$A0,$40,$60,$B0 ;bank 3 sizes
SPR_T15: db $01,$FF,$01,$FF,$01,$FF,$01,$FF ;bank 1 sizes
db $01,$FF,$01,$FF,$01,$00,$01,$FF ;bank 3 sizes
SUB_OFF_SCREEN_X1: LDA #$02 ; \ entry point of routine determines value of $03
BRA STORE_03 ; | (table entry to use on horizontal levels)
SUB_OFF_SCREEN_X2: LDA #$04 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X3: LDA #$06 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X4: LDA #$08 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X5: LDA #$0A ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X6: LDA #$0C ; |
BRA STORE_03 ; | OMG YOU FOUND THIS HIDDEN z0mg place!111 you win a cookie!
SUB_OFF_SCREEN_X7: LDA #$0E ; |
STORE_03: STA $03 ; |
BRA START_SUB ; |
SUB_OFF_SCREEN_X0: STZ $03 ; /
START_SUB: JSR SUB_IS_OFF_SCREEN ; \ if sprite is not off screen, return
BEQ RETURN_35 ; /
LDA $5B ; \ goto VERTICAL_LEVEL if vertical level
AND #$01 ; |
BNE VERTICAL_LEVEL ; /
LDA $D8,x ; \
CLC ; |
ADC #$50 ; | if the sprite has gone off the bottom of the level...
LDA $14D4,x ; | (if adding 0x50 to the sprite y position would make the high byte >= 2)
ADC #$00 ; |
CMP #$02 ; |
BPL ERASE_SPRITE ; / ...erase the sprite
LDA $167A,x ; \ if "process offscreen" flag is set, return
AND #$04 ; |
BNE RETURN_35 ; /
LDA $13 ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0756 VC:176 00 FL:205
AND #$01 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0780 VC:176 00 FL:205
ORA $03 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0796 VC:176 00 FL:205
STA $01 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0820 VC:176 00 FL:205
TAY ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0844 VC:176 00 FL:205
LDA $1A ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0858 VC:176 00 FL:205
CLC ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0882 VC:176 00 FL:205
ADC SPR_T14,y ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0896 VC:176 00 FL:205
ROL $00 ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizcHC:0928 VC:176 00 FL:205
CMP $E4,x ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:0966 VC:176 00 FL:205
PHP ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:0996 VC:176 00 FL:205
LDA $1B ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdizCHC:1018 VC:176 00 FL:205
LSR $00 ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdiZCHC:1042 VC:176 00 FL:205
ADC SPR_T15,y ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdizcHC:1080 VC:176 00 FL:205
PLP ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F0 P:eNvMXdizcHC:1112 VC:176 00 FL:205
SBC $14E0,x ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1140 VC:176 00 FL:205
STA $00 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:1172 VC:176 00 FL:205
LSR $01 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:1196 VC:176 00 FL:205
BCC SPR_L31 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZCHC:1234 VC:176 00 FL:205
EOR #$80 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZCHC:1250 VC:176 00 FL:205
STA $00 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1266 VC:176 00 FL:205
SPR_L31: LDA $00 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1290 VC:176 00 FL:205
BPL RETURN_35 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1314 VC:176 00 FL:205
ERASE_SPRITE: LDA $14C8,x ; \ if sprite status < 8, permanently erase sprite
CMP #$08 ; |
BCC KILL_SPRITE ; /
LDY $161A,x ;A:FF08 X:0007 Y:0001 D:0000 DB:01 S:01F3 P:envMXdiZCHC:1108 VC:059 00 FL:2878
CPY #$FF ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdiZCHC:1140 VC:059 00 FL:2878
BEQ KILL_SPRITE ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdizcHC:1156 VC:059 00 FL:2878
LDA #$00 ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdizcHC:1172 VC:059 00 FL:2878
STA $1938,y ;A:FF00 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdiZcHC:1188 VC:059 00 FL:2878
KILL_SPRITE: STZ $14C8,x ; erase sprite
RETURN_35: RTS ; return
VERTICAL_LEVEL: LDA $167A,x ; \ if "process offscreen" flag is set, return
AND #$04 ; |
BNE RETURN_35 ; /
LDA $13 ; \
LSR A ; |
BCS RETURN_35 ; /
LDA $E4,x ; \
CMP #$00 ; | if the sprite has gone off the side of the level...
LDA $14E0,x ; |
SBC #$00 ; |
CMP #$02 ; |
BCS ERASE_SPRITE ; / ...erase the sprite
LDA $13 ;A:0000 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:1218 VC:250 00 FL:5379
LSR A ;A:0016 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1242 VC:250 00 FL:5379
AND #$01 ;A:000B X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1256 VC:250 00 FL:5379
STA $01 ;A:0001 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1272 VC:250 00 FL:5379
TAY ;A:0001 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1296 VC:250 00 FL:5379
LDA $1C ;A:001A X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0052 VC:251 00 FL:5379
CLC ;A:00BD X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0076 VC:251 00 FL:5379
ADC SPR_T12,y ;A:00BD X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0090 VC:251 00 FL:5379
ROL $00 ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:enVMXdizCHC:0122 VC:251 00 FL:5379
CMP $D8,x ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0160 VC:251 00 FL:5379
PHP ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0190 VC:251 00 FL:5379
LDA $001D ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F2 P:eNVMXdizcHC:0212 VC:251 00 FL:5379
LSR $00 ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:enVMXdiZcHC:0244 VC:251 00 FL:5379
ADC SPR_T13,y ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:enVMXdizCHC:0282 VC:251 00 FL:5379
PLP ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:envMXdiZCHC:0314 VC:251 00 FL:5379
SBC $14D4,x ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0342 VC:251 00 FL:5379
STA $00 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0374 VC:251 00 FL:5379
LDY $01 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0398 VC:251 00 FL:5379
BEQ SPR_L38 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0422 VC:251 00 FL:5379
EOR #$80 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0438 VC:251 00 FL:5379
STA $00 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0454 VC:251 00 FL:5379
SPR_L38: LDA $00 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0478 VC:251 00 FL:5379
BPL RETURN_35 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0502 VC:251 00 FL:5379
BMI ERASE_SPRITE ;A:8AFF X:0002 Y:0000 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0704 VC:184 00 FL:5490
SUB_IS_OFF_SCREEN: LDA $15A0,x ; \ if sprite is on screen, accumulator = 0
ORA $186C,x ; |
RTS ; / return
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; SUB HORZ POS
;
; $B817 - horizontal mario/sprite check - shared
; Y = 1 if mario left of sprite??
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;org $03B817
SUB_HORZ_POS: LDY #$00 ;A:25D0 X:0006 Y:0001 D:0000 DB:03 S:01ED P:eNvMXdizCHC:1020 VC:097 00 FL:31642
LDA $94 ;A:25D0 X:0006 Y:0000 D:0000 DB:03 S:01ED P:envMXdiZCHC:1036 VC:097 00 FL:31642
SEC ;A:25F0 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizCHC:1060 VC:097 00 FL:31642
SBC $E4,x ;A:25F0 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizCHC:1074 VC:097 00 FL:31642
STA $0F ;A:25F4 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1104 VC:097 00 FL:31642
LDA $95 ;A:25F4 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1128 VC:097 00 FL:31642
SBC $14E0,x ;A:2500 X:0006 Y:0000 D:0000 DB:03 S:01ED P:envMXdiZcHC:1152 VC:097 00 FL:31642
BPL LABEL16 ;A:25FF X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1184 VC:097 00 FL:31642
INY ;A:25FF X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1200 VC:097 00 FL:31642
LABEL16: RTS ;A:25FF X:0006 Y:0001 D:0000 DB:03 S:01ED P:envMXdizcHC:1214 VC:097 00 FL:31642
dcb "INIT"
JSR SUB_HORZ_POS
TYA
STA $157C,x
RTL
dcb "MAIN"
PHB ;\
PHK ; | Change the data bank to the one our code is running from.
PLB ; | This is a good practice.
JSR SpriteCode ; | Jump to the sprite's function.
PLB ; | Restore old data bank.
RTL ;/ And return.
;===================================
;Sprite Function
;===================================
RETURN: RTS
SpriteCode:
JSR Graphics
LDA $14C8,x ;\
CMP #$08 ; | If sprite dead,
BNE RETURN ;/ Return.
LDA $9D ;\
BNE RETURN ;/ If locked, return.
JSR SUB_OFF_SCREEN_X0 ; Handle offscreen.
RTS
;===================================
;Graphics Code
;===================================
PROPERTIES: dcb $47,$07
TILEMAP: dcb $CC,$CA
YDISP: dcb $10,$00
Graphics:
JSR GET_DRAW_INFO ; Before actually coding the graphics, we need a routine that will get the current sprite's value
; into the OAM.
; The OAM being a place where the tile data for the current sprite will be stored.
LDA $157C,x
STA $02 ; Store direction to $02 for use with property routine later.
PHX ;\ Push the sprite index, since we're using it for a loop.
LDX #$01 ;/ X = number of times to loop through. Since we only draw one MORE tile, loop one more time.
Loop:
LDA $00 ;\
STA $0300,y ;/ Draw the X position of the sprite
LDA $01 ;\
SEC ; | Y displacement is added for the Y position, so one tile is higher than the other.
SBC YDISP,x ; | Otherwise, both tiles would have been drawn to the same position!
STA $0301,y ; | If X is 00, i.e. first tile, then load the first value from the table and apply that
;/ as the displacement. For the second tile, F0 is added to make it higher than the first.
LDA TILEMAP,x ; X still contains index for the tile to draw. If it's the first tile, draw first tile in
STA $0302,y ; the table. If X = 01, i.e. second tile, draw second tile in the table.
PHX ; Push number of times to go through loop (01), because we're using it for a table here.
LDX $02 ;\
LDA PROPERTIES,x ; | Set properties based on direction.
ORA $64
STA $0303,y ;/
PLX ; Pull number of times to go through loop.
INY ;\
INY ; | The OAM is 8x8, but our sprite is 16x16 ..
INY ; | So increment it 4 times.
INY ;/
DEX ; After drawing this tile, decrease number of tiles to go through loop. If the second tile
; is drawn, then loop again to draw the first tile.
BPL Loop ; Loop until X becomes negative (FF).
PLX ; Pull back the sprite index! We pushed it at the beginning of the routine.
LDY #$02 ; Y ends with the tile size .. 02 means it's 16x16
LDA #$01 ; A -> number of tiles drawn - 1.
; I drew 2 tiles, so 2-1 = 1. A = 01.
JSL $01B7B3 ; Call the routine that draws the sprite.
RTS ; Never forget this!
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; GET_DRAW_INFO
; This is a helper for the graphics routine. It sets off screen flags, and sets up
; variables. It will return with the following:
;
; Y = index to sprite OAM ($300)
; $00 = sprite x position relative to screen boarder
; $01 = sprite y position relative to screen boarder
;
; It is adapted from the subroutine at $03B760
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T1 dcb $0C,$1C
SPR_T2 dcb $01,$02
GET_DRAW_INFO STZ $186C,x ; reset sprite offscreen flag, vertical
STZ $15A0,x ; reset sprite offscreen flag, horizontal
LDA $E4,x ; \
CMP $1A ; | set horizontal offscreen if necessary
LDA $14E0,x ; |
SBC $1B ; |
BEQ ON_SCREEN_X ; |
INC $15A0,x ; /
ON_SCREEN_X LDA $14E0,x ; \
XBA ; |
LDA $E4,x ; |
REP #$20 ; |
SEC ; |
SBC $1A ; | mark sprite invalid if far enough off screen
CLC ; |
ADC.W #$0040 ; |
CMP.W #$0180 ; |
SEP #$20 ; |
ROL A ; |
AND #$01 ; |
STA $15C4,x ; /
BNE INVALID ;
LDY #$00 ; \ set up loop:
LDA $1662,x ; |
AND #$20 ; | if not smushed (1662 & 0x20), go through loop twice
BEQ ON_SCREEN_LOOP ; | else, go through loop once
INY ; /
ON_SCREEN_LOOP LDA $D8,x ; \
CLC ; | set vertical offscreen if necessary
ADC SPR_T1,y ; |
PHP ; |
CMP $1C ; | (vert screen boundry)
ROL $00 ; |
PLP ; |
LDA $14D4,x ; |
ADC #$00 ; |
LSR $00 ; |
SBC $1D ; |
BEQ ON_SCREEN_Y ; |
LDA $186C,x ; | (vert offscreen)
ORA SPR_T2,y ; |
STA $186C,x ; |
ON_SCREEN_Y DEY ; |
BPL ON_SCREEN_LOOP ; /
LDY $15EA,x ; get offset to sprite OAM
LDA $E4,x ; \
SEC ; |
SBC $1A ; | $00 = sprite x position relative to screen boarder
STA $00 ; /
LDA $D8,x ; \
SEC ; |
SBC $1C ; | $01 = sprite y position relative to screen boarder
STA $01 ; /
RTS ; return
INVALID PLA ; \ return from *main gfx routine* subroutine...
PLA ; | ...(not just this subroutine)
RTS ; /
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; SUB_OFF_SCREEN
; This subroutine deals with sprites that have moved off screen
; It is adapted from the subroutine at $01AC0D
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T12: db $40,$B0
SPR_T13: db $01,$FF
SPR_T14: db $30,$C0,$A0,$C0,$A0,$F0,$60,$90 ;bank 1 sizes
db $30,$C0,$A0,$80,$A0,$40,$60,$B0 ;bank 3 sizes
SPR_T15: db $01,$FF,$01,$FF,$01,$FF,$01,$FF ;bank 1 sizes
db $01,$FF,$01,$FF,$01,$00,$01,$FF ;bank 3 sizes
SUB_OFF_SCREEN_X1: LDA #$02 ; \ entry point of routine determines value of $03
BRA STORE_03 ; | (table entry to use on horizontal levels)
SUB_OFF_SCREEN_X2: LDA #$04 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X3: LDA #$06 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X4: LDA #$08 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X5: LDA #$0A ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X6: LDA #$0C ; |
BRA STORE_03 ; | OMG YOU FOUND THIS HIDDEN z0mg place!111 you win a cookie!
SUB_OFF_SCREEN_X7: LDA #$0E ; |
STORE_03: STA $03 ; |
BRA START_SUB ; |
SUB_OFF_SCREEN_X0: STZ $03 ; /
START_SUB: JSR SUB_IS_OFF_SCREEN ; \ if sprite is not off screen, return
BEQ RETURN_35 ; /
LDA $5B ; \ goto VERTICAL_LEVEL if vertical level
AND #$01 ; |
BNE VERTICAL_LEVEL ; /
LDA $D8,x ; \
CLC ; |
ADC #$50 ; | if the sprite has gone off the bottom of the level...
LDA $14D4,x ; | (if adding 0x50 to the sprite y position would make the high byte >= 2)
ADC #$00 ; |
CMP #$02 ; |
BPL ERASE_SPRITE ; / ...erase the sprite
LDA $167A,x ; \ if "process offscreen" flag is set, return
AND #$04 ; |
BNE RETURN_35 ; /
LDA $13 ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0756 VC:176 00 FL:205
AND #$01 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0780 VC:176 00 FL:205
ORA $03 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0796 VC:176 00 FL:205
STA $01 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0820 VC:176 00 FL:205
TAY ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0844 VC:176 00 FL:205
LDA $1A ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0858 VC:176 00 FL:205
CLC ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0882 VC:176 00 FL:205
ADC SPR_T14,y ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0896 VC:176 00 FL:205
ROL $00 ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizcHC:0928 VC:176 00 FL:205
CMP $E4,x ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:0966 VC:176 00 FL:205
PHP ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:0996 VC:176 00 FL:205
LDA $1B ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdizCHC:1018 VC:176 00 FL:205
LSR $00 ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdiZCHC:1042 VC:176 00 FL:205
ADC SPR_T15,y ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdizcHC:1080 VC:176 00 FL:205
PLP ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F0 P:eNvMXdizcHC:1112 VC:176 00 FL:205
SBC $14E0,x ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1140 VC:176 00 FL:205
STA $00 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:1172 VC:176 00 FL:205
LSR $01 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:1196 VC:176 00 FL:205
BCC SPR_L31 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZCHC:1234 VC:176 00 FL:205
EOR #$80 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZCHC:1250 VC:176 00 FL:205
STA $00 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1266 VC:176 00 FL:205
SPR_L31: LDA $00 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1290 VC:176 00 FL:205
BPL RETURN_35 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1314 VC:176 00 FL:205
ERASE_SPRITE: LDA $14C8,x ; \ if sprite status < 8, permanently erase sprite
CMP #$08 ; |
BCC KILL_SPRITE ; /
LDY $161A,x ;A:FF08 X:0007 Y:0001 D:0000 DB:01 S:01F3 P:envMXdiZCHC:1108 VC:059 00 FL:2878
CPY #$FF ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdiZCHC:1140 VC:059 00 FL:2878
BEQ KILL_SPRITE ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdizcHC:1156 VC:059 00 FL:2878
LDA #$00 ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdizcHC:1172 VC:059 00 FL:2878
STA $1938,y ;A:FF00 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdiZcHC:1188 VC:059 00 FL:2878
KILL_SPRITE: STZ $14C8,x ; erase sprite
RETURN_35: RTS ; return
VERTICAL_LEVEL: LDA $167A,x ; \ if "process offscreen" flag is set, return
AND #$04 ; |
BNE RETURN_35 ; /
LDA $13 ; \
LSR A ; |
BCS RETURN_35 ; /
LDA $E4,x ; \
CMP #$00 ; | if the sprite has gone off the side of the level...
LDA $14E0,x ; |
SBC #$00 ; |
CMP #$02 ; |
BCS ERASE_SPRITE ; / ...erase the sprite
LDA $13 ;A:0000 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:1218 VC:250 00 FL:5379
LSR A ;A:0016 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1242 VC:250 00 FL:5379
AND #$01 ;A:000B X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1256 VC:250 00 FL:5379
STA $01 ;A:0001 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1272 VC:250 00 FL:5379
TAY ;A:0001 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1296 VC:250 00 FL:5379
LDA $1C ;A:001A X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0052 VC:251 00 FL:5379
CLC ;A:00BD X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0076 VC:251 00 FL:5379
ADC SPR_T12,y ;A:00BD X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0090 VC:251 00 FL:5379
ROL $00 ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:enVMXdizCHC:0122 VC:251 00 FL:5379
CMP $D8,x ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0160 VC:251 00 FL:5379
PHP ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0190 VC:251 00 FL:5379
LDA $001D ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F2 P:eNVMXdizcHC:0212 VC:251 00 FL:5379
LSR $00 ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:enVMXdiZcHC:0244 VC:251 00 FL:5379
ADC SPR_T13,y ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:enVMXdizCHC:0282 VC:251 00 FL:5379
PLP ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:envMXdiZCHC:0314 VC:251 00 FL:5379
SBC $14D4,x ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0342 VC:251 00 FL:5379
STA $00 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0374 VC:251 00 FL:5379
LDY $01 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0398 VC:251 00 FL:5379
BEQ SPR_L38 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0422 VC:251 00 FL:5379
EOR #$80 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0438 VC:251 00 FL:5379
STA $00 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0454 VC:251 00 FL:5379
SPR_L38: LDA $00 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0478 VC:251 00 FL:5379
BPL RETURN_35 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0502 VC:251 00 FL:5379
BMI ERASE_SPRITE ;A:8AFF X:0002 Y:0000 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0704 VC:184 00 FL:5490
SUB_IS_OFF_SCREEN: LDA $15A0,x ; \ if sprite is on screen, accumulator = 0
ORA $186C,x ; |
RTS ; / return
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; SUB HORZ POS
;
; $B817 - horizontal mario/sprite check - shared
; Y = 1 if mario left of sprite??
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;org $03B817
SUB_HORZ_POS: LDY #$00 ;A:25D0 X:0006 Y:0001 D:0000 DB:03 S:01ED P:eNvMXdizCHC:1020 VC:097 00 FL:31642
LDA $94 ;A:25D0 X:0006 Y:0000 D:0000 DB:03 S:01ED P:envMXdiZCHC:1036 VC:097 00 FL:31642
SEC ;A:25F0 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizCHC:1060 VC:097 00 FL:31642
SBC $E4,x ;A:25F0 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizCHC:1074 VC:097 00 FL:31642
STA $0F ;A:25F4 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1104 VC:097 00 FL:31642
LDA $95 ;A:25F4 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1128 VC:097 00 FL:31642
SBC $14E0,x ;A:2500 X:0006 Y:0000 D:0000 DB:03 S:01ED P:envMXdiZcHC:1152 VC:097 00 FL:31642
BPL LABEL16 ;A:25FF X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1184 VC:097 00 FL:31642
INY ;A:25FF X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1200 VC:097 00 FL:31642
LABEL16: RTS ;A:25FF X:0006 Y:0001 D:0000 DB:03 S:01ED P:envMXdizcHC:1214 VC:097 00 FL:31642
;===================================
;Graphics Code
;===================================
PROPERTIES: dcb $47,$07 ;\
TILEMAP: dcb $CC,$CA ;/ die beiden Tabellen
YDISP: dcb $10,$00 ; das Y-Displacement, damit wir 2 Teile haben
Graphics:
JSR GET_DRAW_INFO ; Aktueller Spritewert in die OAM schieben
LDA $157C,x ;\
STA $02 ;/ Laden und speichern der Richtung in 2
PHX
LDX #$01 ; Die Anzahl hier entspricht, wie oft geloopt wird.
Loop:
LDA $00 ;\
STA $0300,y ;/ Zeichnen der X Position des Sprites
LDA $01 ;\
SEC ; | Hier brauchen wir nun das Y-Displacement um 1 Teil 1
SBC YDISP,x ; | höher als das andere zeichnen zu lassen.
STA $0301,y ;/ 1 Wert der Tabelle laden
LDA TILEMAP,x ; Beinhaltet die Teilinformationen. Ist das erste Teil gezeichnet,
STA $0302,y ; so wird das 2. Teil der Tabelle aufgerufen
PHX ; Anzahl der PHX entspricht Anzahl der Loops
LDX $02 ;\
LDA PROPERTIES,x ; | Einstellungen abhängig von der Richtung
ORA $64 ; |
STA $0303,y ;/
PLX ; Anzahl der PHX entspricht Anzahl der Loops
INY
INY .
INY
INY
DEX
BPL Loop ; So lange die Schleife ausführen, bis Wert ist negativ
PLX ; Zum ausgleichen des PHX vom ganz oben
LDY #$02 ; Teilgröße
LDA #$01 ; Anzahl der Teile -1
JSL $01B7B3
RTS
dcb "INIT"
JSR SUB_HORZ_POS
TYA
STA $157C,x
RTL
dcb "MAIN"
PHB ;\
PHK ; | Change the data bank to the one our code is running from.
PLB ; | This is a good practice.
JSR SpriteCode ; | Jump to the sprite's function.
PLB ; | Restore old data bank.
RTL ;/ And return.
;===================================
;Sprite Function
;===================================
RETURN: RTS
SpriteCode:
JSR Graphics
LDA $14C8,x ;\
CMP #$08 ; | If sprite dead,
BNE RETURN ;/ Return.
LDA $9D ;\
BNE RETURN ;/ If locked, return.
JSR SUB_OFF_SCREEN_X0 ; Handle offscreen.
RTS
;===================================
;Graphics Code
;===================================
PROPERTIES: dcb $47,$07
TILEMAP: dcb $CA,$CC,$CA,$CC
YDISP: dcb $F0,$F0,$00,$00
XDISP: dcb $F0,$00,$F0,$00
Graphics:
JSR GET_DRAW_INFO
LDA $157C,x
STA $02 ; Store direction to $02 for use with property routine later.
PHX
LDX #$03
Loop:
LDA $00 ;\
CLC ; | Apply X displacement of the sprite.
ADC XDISP,x ; |
STA $0300,y ;/
LDA $01 ;\
CLC ; | Y displacement is added for the Y position, so one tile is higher than the other.
ADC YDISP,x ; | Otherwise, both tiles would have been drawn to the same position!
STA $0301,y ; | If X is 00, i.e. first tile, then load the first value from the table and apply that
;/ as the displacement. For the second tile, F0 is added to make it higher than the first.
LDA TILEMAP,x ; X still contains index for the tile to draw. If it's the first tile, draw first tile in
STA $0302,y ; the table. If X = 01, i.e. second tile, draw second tile in the table.
PHX ; Push number of times to go through loop (01), because we're using it for a table here.
LDX $02 ;\
LDA PROPERTIES,x ; | Set properties based on direction.
STA $0303,y ;/
PLX ; Pull number of times to go through loop.
INY ;\
INY ; | The OAM is 8x8, but our sprite is 16x16 ..
INY ; | So increment it 4 times.
INY ;/
DEX ; After drawing this tile, decrease number of tiles to go through loop. If the second tile
; is drawn, then loop again to draw the first tile.
BPL Loop ; Loop until X becomes negative (FF).
PLX ; Pull back the sprite index! We pushed it at the beginning of the routine.
LDY #$02 ; Y ends with the tile size .. 02 means it's 16x16
LDA #$03 ; A -> number of tiles drawn - 1.
; I drew 2 tiles, so 2-1 = 1. A = 01.
JSL $01B7B3 ; Call the routine that draws the sprite.
RTS ; Never forget this!
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; GET_DRAW_INFO
; This is a helper for the graphics routine. It sets off screen flags, and sets up
; variables. It will return with the following:
;
; Y = index to sprite OAM ($300)
; $00 = sprite x position relative to screen boarder
; $01 = sprite y position relative to screen boarder
;
; It is adapted from the subroutine at $03B760
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T1 dcb $0C,$1C
SPR_T2 dcb $01,$02
GET_DRAW_INFO STZ $186C,x ; reset sprite offscreen flag, vertical
STZ $15A0,x ; reset sprite offscreen flag, horizontal
LDA $E4,x ; \
CMP $1A ; | set horizontal offscreen if necessary
LDA $14E0,x ; |
SBC $1B ; |
BEQ ON_SCREEN_X ; |
INC $15A0,x ; /
ON_SCREEN_X LDA $14E0,x ; \
XBA ; |
LDA $E4,x ; |
REP #$20 ; |
SEC ; |
SBC $1A ; | mark sprite invalid if far enough off screen
CLC ; |
ADC.W #$0040 ; |
CMP.W #$0180 ; | IF YOU READ THIS, YOU WIN A COOKIE! PM ME AND I'LL GIVE YOU A FREE ASM HACK WOOHOO!
SEP #$20 ; |
ROL A ; |
AND #$01 ; |
STA $15C4,x ; /
BNE INVALID ;
LDY #$00 ; \ set up loop:
LDA $1662,x ; |
AND #$20 ; | if not smushed (1662 & 0x20), go through loop twice
BEQ ON_SCREEN_LOOP ; | else, go through loop once
INY ; /
ON_SCREEN_LOOP LDA $D8,x ; \
CLC ; | set vertical offscreen if necessary
ADC SPR_T1,y ; |
PHP ; |
CMP $1C ; | (vert screen boundry)
ROL $00 ; |
PLP ; |
LDA $14D4,x ; |
ADC #$00 ; |
LSR $00 ; |
SBC $1D ; |
BEQ ON_SCREEN_Y ; |
LDA $186C,x ; | (vert offscreen)
ORA SPR_T2,y ; |
STA $186C,x ; |
ON_SCREEN_Y DEY ; |
BPL ON_SCREEN_LOOP ; /
LDY $15EA,x ; get offset to sprite OAM
LDA $E4,x ; \
SEC ; |
SBC $1A ; | $00 = sprite x position relative to screen boarder
STA $00 ; /
LDA $D8,x ; \
SEC ; |
SBC $1C ; | $01 = sprite y position relative to screen boarder
STA $01 ; /
RTS ; return
INVALID PLA ; \ return from *main gfx routine* subroutine...
PLA ; | ...(not just this subroutine)
RTS ; /
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; SUB_OFF_SCREEN
; This subroutine deals with sprites that have moved off screen
; It is adapted from the subroutine at $01AC0D
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T12: db $40,$B0
SPR_T13: db $01,$FF
SPR_T14: db $30,$C0,$A0,$C0,$A0,$F0,$60,$90 ;bank 1 sizes
db $30,$C0,$A0,$80,$A0,$40,$60,$B0 ;bank 3 sizes
SPR_T15: db $01,$FF,$01,$FF,$01,$FF,$01,$FF ;bank 1 sizes
db $01,$FF,$01,$FF,$01,$00,$01,$FF ;bank 3 sizes
SUB_OFF_SCREEN_X1: LDA #$02 ; \ entry point of routine determines value of $03
BRA STORE_03 ; | (table entry to use on horizontal levels)
SUB_OFF_SCREEN_X2: LDA #$04 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X3: LDA #$06 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X4: LDA #$08 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X5: LDA #$0A ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X6: LDA #$0C ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X7: LDA #$0E ; |
STORE_03: STA $03 ; |
BRA START_SUB ; |
SUB_OFF_SCREEN_X0: STZ $03 ; /
START_SUB: JSR SUB_IS_OFF_SCREEN ; \ if sprite is not off screen, return
BEQ RETURN_35 ; /
LDA $5B ; \ goto VERTICAL_LEVEL if vertical level
AND #$01 ; |
BNE VERTICAL_LEVEL ; /
LDA $D8,x ; \
CLC ; |
ADC #$50 ; | if the sprite has gone off the bottom of the level...
LDA $14D4,x ; | (if adding 0x50 to the sprite y position would make the high byte >= 2)
ADC #$00 ; |
CMP #$02 ; |
BPL ERASE_SPRITE ; / ...erase the sprite
LDA $167A,x ; \ if "process offscreen" flag is set, return
AND #$04 ; |
BNE RETURN_35 ; /
LDA $13 ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0756 VC:176 00 FL:205
AND #$01 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0780 VC:176 00 FL:205
ORA $03 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0796 VC:176 00 FL:205
STA $01 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0820 VC:176 00 FL:205
TAY ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0844 VC:176 00 FL:205
LDA $1A ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0858 VC:176 00 FL:205
CLC ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0882 VC:176 00 FL:205
ADC SPR_T14,y ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0896 VC:176 00 FL:205
ROL $00 ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizcHC:0928 VC:176 00 FL:205
CMP $E4,x ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:0966 VC:176 00 FL:205
PHP ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:0996 VC:176 00 FL:205
LDA $1B ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdizCHC:1018 VC:176 00 FL:205
LSR $00 ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdiZCHC:1042 VC:176 00 FL:205
ADC SPR_T15,y ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdizcHC:1080 VC:176 00 FL:205
PLP ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F0 P:eNvMXdizcHC:1112 VC:176 00 FL:205
SBC $14E0,x ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1140 VC:176 00 FL:205
STA $00 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:1172 VC:176 00 FL:205
LSR $01 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:1196 VC:176 00 FL:205
BCC SPR_L31 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZCHC:1234 VC:176 00 FL:205
EOR #$80 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZCHC:1250 VC:176 00 FL:205
STA $00 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1266 VC:176 00 FL:205
SPR_L31: LDA $00 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1290 VC:176 00 FL:205
BPL RETURN_35 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1314 VC:176 00 FL:205
ERASE_SPRITE: LDA $14C8,x ; \ if sprite status < 8, permanently erase sprite
CMP #$08 ; |
BCC KILL_SPRITE ; /
LDY $161A,x ;A:FF08 X:0007 Y:0001 D:0000 DB:01 S:01F3 P:envMXdiZCHC:1108 VC:059 00 FL:2878
CPY #$FF ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdiZCHC:1140 VC:059 00 FL:2878
BEQ KILL_SPRITE ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdizcHC:1156 VC:059 00 FL:2878
LDA #$00 ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdizcHC:1172 VC:059 00 FL:2878
STA $1938,y ;A:FF00 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdiZcHC:1188 VC:059 00 FL:2878
KILL_SPRITE: STZ $14C8,x ; erase sprite
RETURN_35: RTS ; return
VERTICAL_LEVEL: LDA $167A,x ; \ if "process offscreen" flag is set, return
AND #$04 ; |
BNE RETURN_35 ; /
LDA $13 ; \
LSR A ; |
BCS RETURN_35 ; /
LDA $E4,x ; \
CMP #$00 ; | if the sprite has gone off the side of the level...
LDA $14E0,x ; |
SBC #$00 ; |
CMP #$02 ; |
BCS ERASE_SPRITE ; / ...erase the sprite
LDA $13 ;A:0000 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:1218 VC:250 00 FL:5379
LSR A ;A:0016 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1242 VC:250 00 FL:5379
AND #$01 ;A:000B X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1256 VC:250 00 FL:5379
STA $01 ;A:0001 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1272 VC:250 00 FL:5379
TAY ;A:0001 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1296 VC:250 00 FL:5379
LDA $1C ;A:001A X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0052 VC:251 00 FL:5379
CLC ;A:00BD X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0076 VC:251 00 FL:5379
ADC SPR_T12,y ;A:00BD X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0090 VC:251 00 FL:5379
ROL $00 ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:enVMXdizCHC:0122 VC:251 00 FL:5379
CMP $D8,x ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0160 VC:251 00 FL:5379
PHP ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0190 VC:251 00 FL:5379
LDA $001D ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F2 P:eNVMXdizcHC:0212 VC:251 00 FL:5379
LSR $00 ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:enVMXdiZcHC:0244 VC:251 00 FL:5379
ADC SPR_T13,y ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:enVMXdizCHC:0282 VC:251 00 FL:5379
PLP ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:envMXdiZCHC:0314 VC:251 00 FL:5379
SBC $14D4,x ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0342 VC:251 00 FL:5379
STA $00 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0374 VC:251 00 FL:5379
LDY $01 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0398 VC:251 00 FL:5379
BEQ SPR_L38 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0422 VC:251 00 FL:5379
EOR #$80 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0438 VC:251 00 FL:5379
STA $00 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0454 VC:251 00 FL:5379
SPR_L38: LDA $00 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0478 VC:251 00 FL:5379
BPL RETURN_35 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0502 VC:251 00 FL:5379
BMI ERASE_SPRITE ;A:8AFF X:0002 Y:0000 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0704 VC:184 00 FL:5490
SUB_IS_OFF_SCREEN: LDA $15A0,x ; \ if sprite is on screen, accumulator = 0
ORA $186C,x ; |
RTS ; / return
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; SUB HORZ POS
;
; $B817 - horizontal mario/sprite check - shared
; Y = 1 if mario left of sprite??
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;org $03B817
SUB_HORZ_POS: LDY #$00 ;A:25D0 X:0006 Y:0001 D:0000 DB:03 S:01ED P:eNvMXdizCHC:1020 VC:097 00 FL:31642
LDA $94 ;A:25D0 X:0006 Y:0000 D:0000 DB:03 S:01ED P:envMXdiZCHC:1036 VC:097 00 FL:31642
SEC ;A:25F0 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizCHC:1060 VC:097 00 FL:31642
SBC $E4,x ;A:25F0 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizCHC:1074 VC:097 00 FL:31642
STA $0F ;A:25F4 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1104 VC:097 00 FL:31642
LDA $95 ;A:25F4 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1128 VC:097 00 FL:31642
SBC $14E0,x ;A:2500 X:0006 Y:0000 D:0000 DB:03 S:01ED P:envMXdiZcHC:1152 VC:097 00 FL:31642
BPL LABEL16 ;A:25FF X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1184 VC:097 00 FL:31642
INY ;A:25FF X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1200 VC:097 00 FL:31642
LABEL16: RTS ;A:25FF X:0006 Y:0001 D:0000 DB:03 S:01ED P:envMXdizcHC:1214 VC:097 00 FL:31642
YDISP: dcb $F0,$F0,$00,$00
XDISP: dcb $10,$00,$10,$00
dcb "INIT"
JSR SUB_HORZ_POS
TYA
STA $157C,x
RTL
dcb "MAIN"
PHB ;\
PHK ; | Change the data bank to the one our code is running from.
PLB ; | This is a good practice.
JSR SpriteCode ; | Jump to the sprite's function.
PLB ; | Restore old data bank.
RTL ;/ And return.
;===================================
;Sprite Function
;===================================
RETURN: RTS
SpriteCode:
JSR Graphics
LDA $14C8,x ;\
CMP #$08 ; | If sprite dead,
BNE RETURN ;/ Return.
LDA $9D ;\
BNE RETURN ;/ If locked, return.
JSR SUB_OFF_SCREEN_X0 ; Handle offscreen.
LDA $1588,x
AND #$03
BEQ NoFlip
LDA $157C,x
EOR #$01
STA $157C,x
NoFlip:
LDY $157C,x
LDA XSPD,y
STA $B6,x
JSL $01802A
RTS
XSPD: dcb $08,$F8
;===================================
;Graphics Code
;===================================
PROPERTIES: dcb $47,$07
TILEMAP:
dcb $CA,$CC,$EA,$EC
dcb $CA,$CC,$EA,$EC
YDISP: dcb $F0,$F0,$00,$00
dcb $F0,$F0,$00,$00
XDISP: dcb $F0,$00,$F0,$00
dcb $00,$F0,$00,$F0
Graphics:
JSR GET_DRAW_INFO
LDA $157C,x
STA $02 ; Store direction to $02 for use with property routine later.
BNE NoAdd
LDA $03 ;\
CLC ; | If sprite faces left ..
ADC #$04 ; | Adding 4 more bytes to the table.
STA $03 ;/ So we can invert XDISP to not mess up the sprite's appearance.
NoAdd:
PHX ;\ Push sprite index ..
LDX #$03 ;/ And load X with number of tiles to loop through.
Loop:
PHX ; Push number of tiles to loop through.
TXA ;\
ORA $03 ;/ Transfer it to X and add in the "left displacement" if necessary.
TAX ;\ Get it back into X for an index.
LDA $00 ;\
CLC ; | Apply X displacement of the sprite.
ADC XDISP,x ; |
STA $0300,y ;/
LDA $01 ;\
CLC ; | Y displacement is added for the Y position, so one tile is higher than the other.
ADC YDISP,x ; | Otherwise, both tiles would have been drawn to the same position!
STA $0301,y ; | If X is 00, i.e. first tile, then load the first value from the table and apply that
;/ as the displacement. For the second tile, F0 is added to make it higher than the first.
LDA TILEMAP,x ; X still contains index for the tile to draw. If it's the first tile, draw first tile in
STA $0302,y ; the table. If X = 01, i.e. second tile, draw second tile in the table.
PHX ; Push number of times to go through loop + "left" displacement if necessary.
LDX $02 ;\
LDA PROPERTIES,x ; | Set properties based on direction.
ORA $64
STA $0303,y ;/
PLX ; Pull number of times to go through loop.
INY ;\
INY ; | The OAM is 8x8, but our sprite is 16x16 ..
INY ; | So increment it 4 times.
INY ;/
PLX ; Pull current tile back.
DEX ; After drawing this tile, decrease number of tiles to go through loop. If the second tile
; is drawn, then loop again to draw the first tile.
BPL Loop ; Loop until X becomes negative (FF).
PLX ; Pull back the sprite index! We pushed it at the beginning of the routine.
LDY #$02 ; Y ends with the tile size .. 02 means it's 16x16
LDA #$03 ; A -> number of tiles drawn - 1.
; I drew 2 tiles, so 2-1 = 1. A = 01.
JSL $01B7B3 ; Call the routine that draws the sprite.
RTS ; Never forget this!
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; GET_DRAW_INFO
; This is a helper for the graphics routine. It sets off screen flags, and sets up
; variables. It will return with the following:
;
; Y = index to sprite OAM ($300)
; $00 = sprite x position relative to screen boarder
; $01 = sprite y position relative to screen boarder
;
; It is adapted from the subroutine at $03B760
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T1 dcb $0C,$1C
SPR_T2 dcb $01,$02
GET_DRAW_INFO STZ $186C,x ; reset sprite offscreen flag, vertical
STZ $15A0,x ; reset sprite offscreen flag, horizontal
LDA $E4,x ; \
CMP $1A ; | set horizontal offscreen if necessary
LDA $14E0,x ; |
SBC $1B ; |
BEQ ON_SCREEN_X ; |
INC $15A0,x ; /
ON_SCREEN_X LDA $14E0,x ; \
XBA ; |
LDA $E4,x ; |
REP #$20 ; |
SEC ; |
SBC $1A ; | mark sprite invalid if far enough off screen
CLC ; |
ADC.W #$0040 ; |
CMP.W #$0180 ; |
SEP #$20 ; |
ROL A ; |
AND #$01 ; |
STA $15C4,x ; /
BNE INVALID ;
LDY #$00 ; \ set up loop:
LDA $1662,x ; |
AND #$20 ; | if not smushed (1662 & 0x20), go through loop twice
BEQ ON_SCREEN_LOOP ; | else, go through loop once
INY ; /
ON_SCREEN_LOOP LDA $D8,x ; \
CLC ; | set vertical offscreen if necessary
ADC SPR_T1,y ; |
PHP ; |
CMP $1C ; | (vert screen boundry)
ROL $00 ; |
PLP ; |
LDA $14D4,x ; |
ADC #$00 ; |
LSR $00 ; |
SBC $1D ; |
BEQ ON_SCREEN_Y ; |
LDA $186C,x ; | (vert offscreen)
ORA SPR_T2,y ; |
STA $186C,x ; |
ON_SCREEN_Y DEY ; |
BPL ON_SCREEN_LOOP ; /
LDY $15EA,x ; get offset to sprite OAM
LDA $E4,x ; \
SEC ; |
SBC $1A ; | $00 = sprite x position relative to screen boarder
STA $00 ; /
LDA $D8,x ; \
SEC ; |
SBC $1C ; | $01 = sprite y position relative to screen boarder
STA $01 ; /
RTS ; return
INVALID PLA ; \ return from *main gfx routine* subroutine...
PLA ; | ...(not just this subroutine)
RTS ; /
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; SUB_OFF_SCREEN
; This subroutine deals with sprites that have moved off screen
; It is adapted from the subroutine at $01AC0D
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T12: db $40,$B0
SPR_T13: db $01,$FF
SPR_T14: db $30,$C0,$A0,$C0,$A0,$F0,$60,$90 ;bank 1 sizes
db $30,$C0,$A0,$80,$A0,$40,$60,$B0 ;bank 3 sizes
SPR_T15: db $01,$FF,$01,$FF,$01,$FF,$01,$FF ;bank 1 sizes
db $01,$FF,$01,$FF,$01,$00,$01,$FF ;bank 3 sizes
SUB_OFF_SCREEN_X1: LDA #$02 ; \ entry point of routine determines value of $03
BRA STORE_03 ; | (table entry to use on horizontal levels)
SUB_OFF_SCREEN_X2: LDA #$04 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X3: LDA #$06 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X4: LDA #$08 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X5: LDA #$0A ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X6: LDA #$0C ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X7: LDA #$0E ; |
STORE_03: STA $03 ; |
BRA START_SUB ; |
SUB_OFF_SCREEN_X0: STZ $03 ; /
START_SUB: JSR SUB_IS_OFF_SCREEN ; \ if sprite is not off screen, return
BEQ RETURN_35 ; /
LDA $5B ; \ goto VERTICAL_LEVEL if vertical level
AND #$01 ; |
BNE VERTICAL_LEVEL ; /
LDA $D8,x ; \
CLC ; |
ADC #$50 ; | if the sprite has gone off the bottom of the level...
LDA $14D4,x ; | (if adding 0x50 to the sprite y position would make the high byte >= 2)
ADC #$00 ; |
CMP #$02 ; |
BPL ERASE_SPRITE ; / ...erase the sprite
LDA $167A,x ; \ if "process offscreen" flag is set, return
AND #$04 ; |
BNE RETURN_35 ; /
LDA $13 ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0756 VC:176 00 FL:205
AND #$01 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0780 VC:176 00 FL:205
ORA $03 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0796 VC:176 00 FL:205
STA $01 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0820 VC:176 00 FL:205
TAY ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0844 VC:176 00 FL:205
LDA $1A ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0858 VC:176 00 FL:205
CLC ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0882 VC:176 00 FL:205
ADC SPR_T14,y ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0896 VC:176 00 FL:205
ROL $00 ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizcHC:0928 VC:176 00 FL:205
CMP $E4,x ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:0966 VC:176 00 FL:205
PHP ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:0996 VC:176 00 FL:205
LDA $1B ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdizCHC:1018 VC:176 00 FL:205
LSR $00 ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdiZCHC:1042 VC:176 00 FL:205
ADC SPR_T15,y ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdizcHC:1080 VC:176 00 FL:205
PLP ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F0 P:eNvMXdizcHC:1112 VC:176 00 FL:205
SBC $14E0,x ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1140 VC:176 00 FL:205
STA $00 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:1172 VC:176 00 FL:205
LSR $01 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:1196 VC:176 00 FL:205
BCC SPR_L31 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZCHC:1234 VC:176 00 FL:205
EOR #$80 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZCHC:1250 VC:176 00 FL:205
STA $00 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1266 VC:176 00 FL:205
SPR_L31: LDA $00 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1290 VC:176 00 FL:205
BPL RETURN_35 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1314 VC:176 00 FL:205
ERASE_SPRITE: LDA $14C8,x ; \ if sprite status < 8, permanently erase sprite
CMP #$08 ; |
BCC KILL_SPRITE ; /
LDY $161A,x ;A:FF08 X:0007 Y:0001 D:0000 DB:01 S:01F3 P:envMXdiZCHC:1108 VC:059 00 FL:2878
CPY #$FF ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdiZCHC:1140 VC:059 00 FL:2878
BEQ KILL_SPRITE ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdizcHC:1156 VC:059 00 FL:2878
LDA #$00 ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdizcHC:1172 VC:059 00 FL:2878
STA $1938,y ;A:FF00 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdiZcHC:1188 VC:059 00 FL:2878
KILL_SPRITE: STZ $14C8,x ; erase sprite
RETURN_35: RTS ; return
VERTICAL_LEVEL: LDA $167A,x ; \ if "process offscreen" flag is set, return
AND #$04 ; |
BNE RETURN_35 ; /
LDA $13 ; \
LSR A ; |
BCS RETURN_35 ; /
LDA $E4,x ; \
CMP #$00 ; | if the sprite has gone off the side of the level...
LDA $14E0,x ; |
SBC #$00 ; |
CMP #$02 ; |
BCS ERASE_SPRITE ; / ...erase the sprite
LDA $13 ;A:0000 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:1218 VC:250 00 FL:5379
LSR A ;A:0016 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1242 VC:250 00 FL:5379
AND #$01 ;A:000B X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1256 VC:250 00 FL:5379
STA $01 ;A:0001 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1272 VC:250 00 FL:5379
TAY ;A:0001 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1296 VC:250 00 FL:5379
LDA $1C ;A:001A X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0052 VC:251 00 FL:5379
CLC ;A:00BD X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0076 VC:251 00 FL:5379
ADC SPR_T12,y ;A:00BD X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0090 VC:251 00 FL:5379
ROL $00 ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:enVMXdizCHC:0122 VC:251 00 FL:5379
CMP $D8,x ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0160 VC:251 00 FL:5379
PHP ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0190 VC:251 00 FL:5379
LDA $001D ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F2 P:eNVMXdizcHC:0212 VC:251 00 FL:5379
LSR $00 ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:enVMXdiZcHC:0244 VC:251 00 FL:5379
ADC SPR_T13,y ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:enVMXdizCHC:0282 VC:251 00 FL:5379
PLP ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:envMXdiZCHC:0314 VC:251 00 FL:5379
SBC $14D4,x ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0342 VC:251 00 FL:5379
STA $00 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0374 VC:251 00 FL:5379
LDY $01 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0398 VC:251 00 FL:5379
BEQ SPR_L38 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0422 VC:251 00 FL:5379
EOR #$80 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0438 VC:251 00 FL:5379
STA $00 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0454 VC:251 00 FL:5379
SPR_L38: LDA $00 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0478 VC:251 00 FL:5379
BPL RETURN_35 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0502 VC:251 00 FL:5379
BMI ERASE_SPRITE ;A:8AFF X:0002 Y:0000 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0704 VC:184 00 FL:5490
SUB_IS_OFF_SCREEN: LDA $15A0,x ; \ if sprite is on screen, accumulator = 0
ORA $186C,x ; |
RTS ; / return
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; SUB HORZ POS
;
; $B817 - horizontal mario/sprite check - shared
; Y = 1 if mario left of sprite??
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;org $03B817
SUB_HORZ_POS: LDY #$00 ;A:25D0 X:0006 Y:0001 D:0000 DB:03 S:01ED P:eNvMXdizCHC:1020 VC:097 00 FL:31642
LDA $94 ;A:25D0 X:0006 Y:0000 D:0000 DB:03 S:01ED P:envMXdiZCHC:1036 VC:097 00 FL:31642
SEC ;A:25F0 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizCHC:1060 VC:097 00 FL:31642
SBC $E4,x ;A:25F0 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizCHC:1074 VC:097 00 FL:31642
STA $0F ;A:25F4 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1104 VC:097 00 FL:31642
LDA $95 ;A:25F4 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1128 VC:097 00 FL:31642
SBC $14E0,x ;A:2500 X:0006 Y:0000 D:0000 DB:03 S:01ED P:envMXdiZcHC:1152 VC:097 00 FL:31642
BPL LABEL16 ;A:25FF X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1184 VC:097 00 FL:31642
INY ;A:25FF X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1200 VC:097 00 FL:31642
LABEL16: RTS ;A:25FF X:0006 Y:0001 D:0000 DB:03 S:01ED P:envMXdizcHC:1214 VC:097 00 FL:31642
XDISP: dcb $10,$00,$10,$00
dcb $00,$10,$00,$10
TILEMAP:
dcb $CA,$CC,$EA,$EC
dcb $CA,$CC,$EA,$EC
YDISP: dcb $F0, $F0, $00, $00
dcb $F0, $F0, $00, $00
LDA $13 ; Laden des Framecounters
LSR A ;\ Verlangsamen der Animation
LSR A ;/
AND #$01 ; Animation zwischen 2 Frames (0 und 1)
ASL A
ASL A
STA $03 ; Speichern in $03
TILEMAP:
dcb $CA,$CC,$EA,$EC ; Animation 1 (Bytes 1-4)
dcb $CA,$CC,$EA,$EC ; Animation 2 (Bytes 5-8)
LDA $03 ;\
CLC ; | Schaut der Sprite nach links
ADC #$04 ; | 4 Bytes zur Tabelle hinzufügen
STA $03 ;/ Umdrehen, des XDISP damit der Sprite noch richtig aussieht
TILEMAP:
dcb $CA,$CC,$EA,$EC ; Frame 1 Rechts
dcb $CA,$CC,$EA,$EC ; Frame 2 Rechts / Frame 1 Links
dcb $xx,$xx,$xx,$xx ; DIESER CODE EXISTIERT NICHT
TILEMAP:
dcb $CA,$CC,$EA,$EC ; Frame 1 Rechts
dcb $C6,$C8,$E6,$E8 ; Frame 2 Rechts
dcb $CA,$CC,$EA,$EC ; Frame 1 Links
dcb $C6,$C8,$E6,$E8 ; Frame 2 Links
LDA $157C,x
STA $02
BNE NoAdd
LDA $03
CLC
ADC #$08 ;diese Zeile wurde verändert
STA $03
YDISP: dcb $F0, $F0, $00, $00 ; Frame 1 Rechts
dcb $F0, $F0, $00, $00 ; Frame 2 Rechts
dcb $F0, $F0, $00, $00 ; Frame 1 Links
dcb $F0, $F0, $00, $00 ; Frame 2 Links
XDISP: dcb $00,$10,$00,$10 ; Frame 1 Rechts
dcb $00,$10,$00,$10 ; Frame 2 Rechts
dcb $10,$00,$10,$00 ; Frame 1 Links
dcb $00,$10,$00,$10 ; Frame 2 Links
dcb "INIT"
JSR SUB_HORZ_POS
TYA
STA $157C,x
RTL
dcb "MAIN"
PHB ;\
PHK ; | Change the data bank to the one our code is running from.
PLB ; | This is a good practice.
JSR SpriteCode ; | Jump to the sprite's function.
PLB ; | Restore old data bank.
RTL ;/ And return.
;===================================
;Sprite Function
;===================================
RETURN: RTS
SpriteCode:
JSR Graphics
LDA $14C8,x ;\
CMP #$08 ; | If sprite dead,
BNE RETURN ;/ Return.
LDA $9D ;\
BNE RETURN ;/ If locked, return.
JSR SUB_OFF_SCREEN_X0 ; Handle offscreen.
LDA $1588,x
AND #$03
BEQ NoFlip
LDA $157C,x
EOR #$01
STA $157C,x
NoFlip:
LDY $157C,x
LDA XSPD,y
STA $B6,x
JSL $01802A
JSL $01A7DC
BCC skip
jsl $00f5b7
skip:
RTS
XSPD: dcb $08,$F8
;===================================
;Graphics Code
;===================================
PROPERTIES: dcb $47,$07
;The tables must now have 16 bytes.
;THE LAST 8 ARE ONLY CREATED BECAUSE OF XDISP.
;0-4 BYTE - FRAME 1 RIGHT
;4-8 BYTE - FRAME 2 RIGHT
;8-12 BYTE - FRAME 1 LEFT
;12-16 BYTE - FRAME 2 LEFT
TILEMAP:
dcb $CA,$CC,$EA,$EC ; FRAME 1 ;\ RIGHT
dcb $C6,$C8,$E6,$E8 ; FRAME 2 ;/ RIGHT
dcb $CA,$CC,$EA,$EC ; FRAME 1 ;\ LEFT
dcb $C6,$C8,$E6,$E8 ; FRAME 2 ;/ LEFT
YDISP: dcb $F0,$F0,$00,$00 ; FRAME 1 ;\ RIGHT
dcb $F0,$F0,$00,$00 ; FRAME 2 ;/ RIGHT
dcb $F0,$F0,$00,$00 ; FRAME 1 ;\ LEFT
dcb $F0,$F0,$00,$00 ; FRAME 2 ;/ LEFT
XDISP: dcb $00,$10,$00,$10 ; FRAME 1 ;\ RIGHT
dcb $00,$10,$00,$10 ; FRAME 2 ;/ RIGHT
dcb $10,$00,$10,$00 ; FRAME 1 ;\ LEFT
dcb $10,$00,$10,$00 ; FRAME 2 ;/ LEFT
Graphics:
JSR GET_DRAW_INFO
LDA $14 ;\ Frame counter ..
LSR A ; |
LSR A ; | Add in frame animation rate; More LSRs for slower animation.
AND #$01 ; | 01 means we animate between 2 frames (00 and 01).
ASL A ; |
ASL A ; | ASL x2 (0-4) makes it switch between the first byte and fifth byte,
STA $03 ;/ i.e. first animation and second animation. The result is stored into $03.
LDA $157C,x
STA $02 ; Store direction to $02 for use with property routine later.
BNE NoAdd
LDA $03 ;\
CLC ; | If sprite faces left ..
ADC #$08 ; | Adding 8 more bytes to the table.
STA $03 ;/ So we can invert XDISP to not mess up the sprite's appearance.
NoAdd:
PHX ;\ Push sprite index ..
LDX #$03 ;/ And load X with number of tiles to loop through.
Loop:
PHX ; Push number of tiles to loop through.
TXA ;\
ORA $03 ;/ Transfer it to X and add in the "left displacement" if necessary.
TAX ;\ Get it back into X for an index.
LDA $00 ;\
CLC ; | Apply X displacement of the sprite.
ADC XDISP,x ; |
STA $0300,y ;/
LDA $01 ;\
CLC ; | Y displacement is added for the Y position, so one tile is higher than the other.
ADC YDISP,x ; | Otherwise, both tiles would have been drawn to the same position!
STA $0301,y ; | If X is 00, i.e. first tile, then load the first value from the table and apply that
;/ as the displacement. For the second tile, F0 is added to make it higher than the first.
LDA TILEMAP,x
STA $0302,y
PHX ; Push number of times to go through loop + "left" displacement if necessary.
LDX $02 ;\
LDA PROPERTIES,x ; | Set properties based on direction.
STA $0303,y ;/
PLX ; Pull number of times to go through loop.
INY ;\
INY ; | The OAM is 8x8, but our sprite is 16x16 ..
INY ; | So increment it 4 times.
INY ;/
PLX ; Pull current tile back.
DEX ; After drawing this tile, decrease number of tiles to go through loop. If the second tile
; is drawn, then loop again to draw the first tile.
BPL Loop ; Loop until X becomes negative (FF).
PLX ; Pull back the sprite index! We pushed it at the beginning of the routine.
LDY #$02 ; Y ends with the tile size .. 02 means it's 16x16
LDA #$03 ; A -> number of tiles drawn - 1.
; I drew 2 tiles, so 2-1 = 1. A = 01.
JSL $01B7B3 ; Call the routine that draws the sprite.
RTS ; Never forget this!
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; GET_DRAW_INFO
; This is a helper for the graphics routine. It sets off screen flags, and sets up
; variables. It will return with the following:
;
; Y = index to sprite OAM ($300)
; $00 = sprite x position relative to screen boarder
; $01 = sprite y position relative to screen boarder
;
; It is adapted from the subroutine at $03B760
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T1 dcb $0C,$1C
SPR_T2 dcb $01,$02
GET_DRAW_INFO STZ $186C,x ; reset sprite offscreen flag, vertical
STZ $15A0,x ; reset sprite offscreen flag, horizontal
LDA $E4,x ; \
CMP $1A ; | set horizontal offscreen if necessary
LDA $14E0,x ; |
SBC $1B ; |
BEQ ON_SCREEN_X ; |
INC $15A0,x ; /
ON_SCREEN_X LDA $14E0,x ; \
XBA ; |
LDA $E4,x ; |
REP #$20 ; |
SEC ; |
SBC $1A ; | mark sprite invalid if far enough off screen
CLC ; |
ADC.W #$0040 ; |
CMP.W #$0180 ; |
SEP #$20 ; |
ROL A ; |
AND #$01 ; |
STA $15C4,x ; /
BNE INVALID ;
LDY #$00 ; \ set up loop:
LDA $1662,x ; |
AND #$20 ; | if not smushed (1662 & 0x20), go through loop twice
BEQ ON_SCREEN_LOOP ; | else, go through loop once
INY ; /
ON_SCREEN_LOOP LDA $D8,x ; \
CLC ; | set vertical offscreen if necessary
ADC SPR_T1,y ; |
PHP ; |
CMP $1C ; | (vert screen boundry)
ROL $00 ; |
PLP ; |
LDA $14D4,x ; |
ADC #$00 ; |
LSR $00 ; |
SBC $1D ; |
BEQ ON_SCREEN_Y ; |
LDA $186C,x ; | (vert offscreen)
ORA SPR_T2,y ; |
STA $186C,x ; |
ON_SCREEN_Y DEY ; |
BPL ON_SCREEN_LOOP ; /
LDY $15EA,x ; get offset to sprite OAM
LDA $E4,x ; \
SEC ; |
SBC $1A ; | $00 = sprite x position relative to screen boarder
STA $00 ; /
LDA $D8,x ; \
SEC ; |
SBC $1C ; | $01 = sprite y position relative to screen boarder
STA $01 ; /
RTS ; return
INVALID PLA ; \ return from *main gfx routine* subroutine...
PLA ; | ...(not just this subroutine)
RTS ; /
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; SUB_OFF_SCREEN
; This subroutine deals with sprites that have moved off screen
; It is adapted from the subroutine at $01AC0D
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T12: db $40,$B0
SPR_T13: db $01,$FF
SPR_T14: db $30,$C0,$A0,$C0,$A0,$F0,$60,$90 ;bank 1 sizes
db $30,$C0,$A0,$80,$A0,$40,$60,$B0 ;bank 3 sizes
SPR_T15: db $01,$FF,$01,$FF,$01,$FF,$01,$FF ;bank 1 sizes
db $01,$FF,$01,$FF,$01,$00,$01,$FF ;bank 3 sizes
SUB_OFF_SCREEN_X1: LDA #$02 ; \ entry point of routine determines value of $03
BRA STORE_03 ; | (table entry to use on horizontal levels)
SUB_OFF_SCREEN_X2: LDA #$04 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X3: LDA #$06 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X4: LDA #$08 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X5: LDA #$0A ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X6: LDA #$0C ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X7: LDA #$0E ; |
STORE_03: STA $03 ; |
BRA START_SUB ; |
SUB_OFF_SCREEN_X0: STZ $03 ; /
START_SUB: JSR SUB_IS_OFF_SCREEN ; \ if sprite is not off screen, return
BEQ RETURN_35 ; /
LDA $5B ; \ goto VERTICAL_LEVEL if vertical level
AND #$01 ; |
BNE VERTICAL_LEVEL ; /
LDA $D8,x ; \
CLC ; |
ADC #$50 ; | if the sprite has gone off the bottom of the level...
LDA $14D4,x ; | (if adding 0x50 to the sprite y position would make the high byte >= 2)
ADC #$00 ; |
CMP #$02 ; |
BPL ERASE_SPRITE ; / ...erase the sprite
LDA $167A,x ; \ if "process offscreen" flag is set, return
AND #$04 ; |
BNE RETURN_35 ; /
LDA $13 ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0756 VC:176 00 FL:205
AND #$01 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0780 VC:176 00 FL:205
ORA $03 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0796 VC:176 00 FL:205
STA $01 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0820 VC:176 00 FL:205
TAY ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0844 VC:176 00 FL:205
LDA $1A ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0858 VC:176 00 FL:205
CLC ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0882 VC:176 00 FL:205
ADC SPR_T14,y ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0896 VC:176 00 FL:205
ROL $00 ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizcHC:0928 VC:176 00 FL:205
CMP $E4,x ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:0966 VC:176 00 FL:205
PHP ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:0996 VC:176 00 FL:205
LDA $1B ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdizCHC:1018 VC:176 00 FL:205
LSR $00 ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdiZCHC:1042 VC:176 00 FL:205
ADC SPR_T15,y ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdizcHC:1080 VC:176 00 FL:205
PLP ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F0 P:eNvMXdizcHC:1112 VC:176 00 FL:205
SBC $14E0,x ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1140 VC:176 00 FL:205
STA $00 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:1172 VC:176 00 FL:205
LSR $01 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:1196 VC:176 00 FL:205
BCC SPR_L31 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZCHC:1234 VC:176 00 FL:205
EOR #$80 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZCHC:1250 VC:176 00 FL:205
STA $00 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1266 VC:176 00 FL:205
SPR_L31: LDA $00 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1290 VC:176 00 FL:205
BPL RETURN_35 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1314 VC:176 00 FL:205
ERASE_SPRITE: LDA $14C8,x ; \ if sprite status < 8, permanently erase sprite
CMP #$08 ; |
BCC KILL_SPRITE ; /
LDY $161A,x ;A:FF08 X:0007 Y:0001 D:0000 DB:01 S:01F3 P:envMXdiZCHC:1108 VC:059 00 FL:2878
CPY #$FF ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdiZCHC:1140 VC:059 00 FL:2878
BEQ KILL_SPRITE ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdizcHC:1156 VC:059 00 FL:2878
LDA #$00 ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdizcHC:1172 VC:059 00 FL:2878
STA $1938,y ;A:FF00 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdiZcHC:1188 VC:059 00 FL:2878
KILL_SPRITE: STZ $14C8,x ; erase sprite
RETURN_35: RTS ; return
VERTICAL_LEVEL: LDA $167A,x ; \ if "process offscreen" flag is set, return
AND #$04 ; |
BNE RETURN_35 ; /
LDA $13 ; \
LSR A ; |
BCS RETURN_35 ; /
LDA $E4,x ; \
CMP #$00 ; | if the sprite has gone off the side of the level...
LDA $14E0,x ; |
SBC #$00 ; |
CMP #$02 ; |
BCS ERASE_SPRITE ; / ...erase the sprite
LDA $13 ;A:0000 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:1218 VC:250 00 FL:5379
LSR A ;A:0016 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1242 VC:250 00 FL:5379
AND #$01 ;A:000B X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1256 VC:250 00 FL:5379
STA $01 ;A:0001 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1272 VC:250 00 FL:5379
TAY ;A:0001 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1296 VC:250 00 FL:5379
LDA $1C ;A:001A X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0052 VC:251 00 FL:5379
CLC ;A:00BD X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0076 VC:251 00 FL:5379
ADC SPR_T12,y ;A:00BD X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0090 VC:251 00 FL:5379
ROL $00 ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:enVMXdizCHC:0122 VC:251 00 FL:5379
CMP $D8,x ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0160 VC:251 00 FL:5379
PHP ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0190 VC:251 00 FL:5379
LDA $001D ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F2 P:eNVMXdizcHC:0212 VC:251 00 FL:5379
LSR $00 ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:enVMXdiZcHC:0244 VC:251 00 FL:5379
ADC SPR_T13,y ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:enVMXdizCHC:0282 VC:251 00 FL:5379
PLP ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:envMXdiZCHC:0314 VC:251 00 FL:5379
SBC $14D4,x ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0342 VC:251 00 FL:5379
STA $00 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0374 VC:251 00 FL:5379
LDY $01 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0398 VC:251 00 FL:5379
BEQ SPR_L38 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0422 VC:251 00 FL:5379
EOR #$80 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0438 VC:251 00 FL:5379
STA $00 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0454 VC:251 00 FL:5379
SPR_L38: LDA $00 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0478 VC:251 00 FL:5379
BPL RETURN_35 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0502 VC:251 00 FL:5379
BMI ERASE_SPRITE ;A:8AFF X:0002 Y:0000 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0704 VC:184 00 FL:5490
SUB_IS_OFF_SCREEN: LDA $15A0,x ; \ if sprite is on screen, accumulator = 0
ORA $186C,x ; |
RTS ; / return
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; SUB HORZ POS
;
; $B817 - horizontal mario/sprite check - shared
; Y = 1 if mario left of sprite??
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;org $03B817
SUB_HORZ_POS: LDY #$00 ;A:25D0 X:0006 Y:0001 D:0000 DB:03 S:01ED P:eNvMXdizCHC:1020 VC:097 00 FL:31642
LDA $94 ;A:25D0 X:0006 Y:0000 D:0000 DB:03 S:01ED P:envMXdiZCHC:1036 VC:097 00 FL:31642
SEC ;A:25F0 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizCHC:1060 VC:097 00 FL:31642
SBC $E4,x ;A:25F0 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizCHC:1074 VC:097 00 FL:31642
STA $0F ;A:25F4 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1104 VC:097 00 FL:31642
LDA $95 ;A:25F4 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1128 VC:097 00 FL:31642
SBC $14E0,x ;A:2500 X:0006 Y:0000 D:0000 DB:03 S:01ED P:envMXdiZcHC:1152 VC:097 00 FL:31642
BPL LABEL16 ;A:25FF X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1184 VC:097 00 FL:31642
INY ;A:25FF X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1200 VC:097 00 FL:31642
LABEL16: RTS ;A:25FF X:0006 Y:0001 D:0000 DB:03 S:01ED P:envMXdizcHC:1214 VC:097 00 FL:31642
LDA $1534,x ; Laden einer Tabelle
CMP #$CC ; Wenn CC Frames vorbei sind.... (ca. 3 Sekunden)
BEQ Jump ; Gehe zu Jump
INC $1534,x ; Verkleinere $1534,x jeden Frame
RTS
Jump:
LDA #$D0
STA $AA,x ; Y-Speed des Sprites
LDA #$01
STA 1DFA ; abspielen vom Sprunggeräusch
JSL $01802A
STZ $1534,x ; Zeit zurücksetzen, damit nicht nur 1 mal gesprungen wird
RTS
LDA #$1C ; Sprite = Bullet Bill
STA $9E,x
LDA #$01
STA $14C8,x
JSL $07F7D2
LDA #$01
STA $7FAB9E,x
LDA #$08
STA $14C8,x
JSL $07F7D2
JSL $0187A7
LDA #$08
STA $7FAB10,x
LDA $7FAB9E,x
AND #$04
BEQ BitClear
; Code der ausgeführt wird, wenn das Extra Bit gesetzt ist
LDA $94
STA $E4,x
LDA $95
STA $14E0,x
LDA $96
STA $D8,x
LDA $97
STA $14D4,x
LDA $96
SEC ;\ CLC und dann ADC #$10 würden das Gegenteil bewirken
SBC #$10 ;/
STA $D8,x
LDA $96
CLC
ADC #$10
STA $D8,x
LDA $95
STA $14E0,x
^ Schlechter Code
LDA $96
CLC
ADC #$10
STA $D8,x
LDY $76 ; Wieso dass hier hin muss hab ich ehrlich gesagt keine Ahnung :P
LDA $95
ADC OFFSET,y
STA $14E0
RTS
OFFSET: dcb $00,$FF
^ Guter Code
JSL $02A9DE
BMI SlotsFull ; Wenn alle Slots für Sprites belegt sind keinen spawnen
PHX ; Wir brauchen das X Register für den Hauptsprite
TYX ; Aufheben der Information des Hauptsprites
LDA #$D0
STA $7FAB9E ;\ Die Spritenummer ist in der RAM Adreese der Custom Sprites gespeichert
TXY ; | Da STA $7FAB9E,y nicht existiert verschieben wir nun X in Y
PLX ;/
LDA #$08 ;\ Das hier ist 8 und bedeutet das ein custom Sprite generiert wird
STA $7FAB10,x ;/
LDA #$01 ;\ Zuerst den INIT Code des Sprites ausführen
STA $14C8,y ;/
LDA $E$,x
STA $00E4,y ; X Position
LDA $14E0,x
STA $14E0,y ; X Position (high)
LDA $D8,x
STA $00D8,y ; Y Position
LDA $14D4,x
STA $14D4,y ; Y Position (high)
PHX ; Push
TYX ; Zurückschieben ins X Register
JSL $07F7D2 ; Reset der Spritetabelle
JSL $0187A7 ; Reset der custom Spritetabelle
PLX ; Pull
dcb "INIT"
JSR SUB_HORZ_POS
TYA
STA $157C,x
RTL
dcb "MAIN"
PHB ;\
PHK ; | Change the data bank to the one our code is running from.
PLB ; | This is a good practice.
JSR SpriteCode ; | Jump to the sprite's function.
PLB ; | Restore old data bank.
RTL ;/ And return.
;===================================
;Sprite Function
;===================================
RETURN: RTS
SpriteCode:
JSR Graphics
LDA $14C8,x ;\
CMP #$08 ; | If sprite dead,
BNE RETURN ;/ Return.
LDA $9D ;\
BNE RETURN ;/ If locked, return.
LDA $1588,x
AND #$03
BEQ NoFlip ; If touching an object ...
LDA $157C,x
EOR #$01 ; Flip direction.
STA $157C,x
NoFlip:
JSR SUB_OFF_SCREEN_X0 ; Handle offscreen.
RTS
;==================================================================
;Generate Smoke Subroutine
;JSR to DrawSmoke to generate smoke at the sprite's position.
;==================================================================
DrawSmoke: LDY #$03 ; \ find a free slot to display effect
FINDFREE: LDA $17C0,y ; |
BEQ FOUNDONE ; |
DEY ; |
BPL FINDFREE ; |
RTS ; / return if no slots open
FOUNDONE: LDA #$01 ; \ set effect graphic to smoke graphic
STA $17C0,y ; /
LDA #$1F ; \ set time to show smoke
STA $17CC,y ; /
LDA $D8,x ; \ smoke y position = generator y position
STA $17C4,y ; /
LDA $E4,x ; \ load generator x position and store it for later
STA $17C8,y ; /
RTS
;===================================
;Graphics Code
;===================================
PROPERTIES: dcb $47,$07
;The tables must now have 16 bytes.
;THE LAST 8 ARE ONLY CREATED BECAUSE OF XDISP.
;0-4 BYTE - FRAME 1 RIGHT
;4-8 BYTE - FRAME 2 RIGHT
;8-12 BYTE - FRAME 1 LEFT
;12-16 BYTE - FRAME 2 LEFT
TILEMAP:
dcb $CA,$CC,$EA,$EC ; FRAME 1 ;\ RIGHT
dcb $C6,$C8,$E6,$E8 ; FRAME 2 ;/ RIGHT
dcb $CA,$CC,$EA,$EC ; FRAME 1 ;\ LEFT
dcb $C6,$C8,$E6,$E8 ; FRAME 2 ;/ LEFT
YDISP: dcb $F0,$F0,$00,$00 ; FRAME 1 ;\ RIGHT
dcb $F0,$F0,$00,$00 ; FRAME 2 ;/ RIGHT
dcb $F0,$F0,$00,$00 ; FRAME 1 ;\ LEFT
dcb $F0,$F0,$00,$00 ; FRAME 2 ;/ LEFT
XDISP: dcb $00,$10,$00,$10 ; FRAME 1 ;\ RIGHT
dcb $00,$10,$00,$10 ; FRAME 2 ;/ RIGHT
dcb $10,$00,$10,$00 ; FRAME 1 ;\ LEFT
dcb $10,$00,$10,$00 ; FRAME 2 ;/ LEFT
Graphics:
JSR GET_DRAW_INFO
LDA $14 ;\ Frame counter ..
LSR A ; |
LSR A ; | Add in frame animation rate; More LSRs for slower animation.
AND #$01 ; | 01 means we animate between 2 frames (00 and 01).
ASL A ; |
ASL A ; | ASL x2 (0-4) makes it switch between the first byte and fifth byte,
STA $03 ;/ i.e. first animation and second animation. The result is stored into $03.
LDA $157C,x
STA $02 ; Store direction to $02 for use with property routine later.
BNE NoAdd
LDA $03 ;\
CLC ; | If sprite faces left ..
ADC #$08 ; | Adding 8 more bytes to the table.
STA $03 ;/ So we can invert XDISP to not mess up the sprite's appearance.
NoAdd:
PHX ;\ Push sprite index ..
LDX #$03 ;/ And load X with number of tiles to loop through.
Loop:
PHX ; Push number of tiles to loop through.
TXA ;\
ORA $03 ;/ Transfer it to X and add in the "left displacement" if necessary.
TAX ;\ Get it back into X for an index.
LDA $00 ;\
CLC ; | Apply X displacement of the sprite.
ADC XDISP,x ; |
STA $0300,y ;/
LDA $01 ;\
CLC ; | Y displacement is added for the Y position, so one tile is higher than the other.
ADC YDISP,x ; | Otherwise, both tiles would have been drawn to the same position!
STA $0301,y ; | If X is 00, i.e. first tile, then load the first value from the table and apply that
;/ as the displacement. For the second tile, F0 is added to make it higher than the first.
LDA TILEMAP,x
STA $0302,y
PHX ; Push number of times to go through loop + "left" displacement if necessary.
LDX $02 ;\
LDA PROPERTIES,x ; | Set properties based on direction.
STA $0303,y ;/
PLX ; Pull number of times to go through loop.
INY ;\
INY ; | The OAM is 8x8, but our sprite is 16x16 ..
INY ; | So increment it 4 times.
INY ;/
PLX ; Pull current tile back.
DEX ; After drawing this tile, decrease number of tiles to go through loop. If the second tile
; is drawn, then loop again to draw the first tile.
BPL Loop ; Loop until X becomes negative (FF).
PLX ; Pull back the sprite index! We pushed it at the beginning of the routine.
LDY #$02 ; Y ends with the tile size .. 02 means it's 16x16
LDA #$03 ; A -> number of tiles drawn - 1.
; I drew 2 tiles, so 2-1 = 1. A = 01.
JSL $01B7B3 ; Call the routine that draws the sprite.
RTS ; Never forget this!
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; GET_DRAW_INFO
; This is a helper for the graphics routine. It sets off screen flags, and sets up
; variables. It will return with the following:
;
; Y = index to sprite OAM ($300)
; $00 = sprite x position relative to screen boarder
; $01 = sprite y position relative to screen boarder
;
; It is adapted from the subroutine at $03B760
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T1 dcb $0C,$1C
SPR_T2 dcb $01,$02
GET_DRAW_INFO STZ $186C,x ; reset sprite offscreen flag, vertical
STZ $15A0,x ; reset sprite offscreen flag, horizontal
LDA $E4,x ; \
CMP $1A ; | set horizontal offscreen if necessary
LDA $14E0,x ; |
SBC $1B ; |
BEQ ON_SCREEN_X ; |
INC $15A0,x ; /
ON_SCREEN_X LDA $14E0,x ; \
XBA ; |
LDA $E4,x ; |
REP #$20 ; |
SEC ; |
SBC $1A ; | mark sprite invalid if far enough off screen
CLC ; |
ADC.W #$0040 ; |
CMP.W #$0180 ; |
SEP #$20 ; |
ROL A ; |
AND #$01 ; |
STA $15C4,x ; /
BNE INVALID ;
LDY #$00 ; \ set up loop:
LDA $1662,x ; |
AND #$20 ; | if not smushed (1662 & 0x20), go through loop twice
BEQ ON_SCREEN_LOOP ; | else, go through loop once
INY ; /
ON_SCREEN_LOOP LDA $D8,x ; \
CLC ; | set vertical offscreen if necessary
ADC SPR_T1,y ; |
PHP ; |
CMP $1C ; | (vert screen boundry)
ROL $00 ; |
PLP ; |
LDA $14D4,x ; |
ADC #$00 ; |
LSR $00 ; |
SBC $1D ; |
BEQ ON_SCREEN_Y ; |
LDA $186C,x ; | (vert offscreen)
ORA SPR_T2,y ; |
STA $186C,x ; |
ON_SCREEN_Y DEY ; |
BPL ON_SCREEN_LOOP ; /
LDY $15EA,x ; get offset to sprite OAM
LDA $E4,x ; \
SEC ; |
SBC $1A ; | $00 = sprite x position relative to screen boarder
STA $00 ; /
LDA $D8,x ; \
SEC ; |
SBC $1C ; | $01 = sprite y position relative to screen boarder
STA $01 ; /
RTS ; return
INVALID PLA ; \ return from *main gfx routine* subroutine...
PLA ; | ...(not just this subroutine)
RTS ; /
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; SUB_OFF_SCREEN
; This subroutine deals with sprites that have moved off screen
; It is adapted from the subroutine at $01AC0D
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SPR_T12: db $40,$B0
SPR_T13: db $01,$FF
SPR_T14: db $30,$C0,$A0,$C0,$A0,$F0,$60,$90 ;bank 1 sizes
db $30,$C0,$A0,$80,$A0,$40,$60,$B0 ;bank 3 sizes
SPR_T15: db $01,$FF,$01,$FF,$01,$FF,$01,$FF ;bank 1 sizes
db $01,$FF,$01,$FF,$01,$00,$01,$FF ;bank 3 sizes
SUB_OFF_SCREEN_X1: LDA #$02 ; \ entry point of routine determines value of $03
BRA STORE_03 ; | (table entry to use on horizontal levels)
SUB_OFF_SCREEN_X2: LDA #$04 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X3: LDA #$06 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X4: LDA #$08 ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X5: LDA #$0A ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X6: LDA #$0C ; |
BRA STORE_03 ; |
SUB_OFF_SCREEN_X7: LDA #$0E ; |
STORE_03: STA $03 ; |
BRA START_SUB ; |
SUB_OFF_SCREEN_X0: STZ $03 ; /
START_SUB: JSR SUB_IS_OFF_SCREEN ; \ if sprite is not off screen, return
BEQ RETURN_35 ; /
LDA $5B ; \ goto VERTICAL_LEVEL if vertical level
AND #$01 ; |
BNE VERTICAL_LEVEL ; /
LDA $D8,x ; \
CLC ; |
ADC #$50 ; | if the sprite has gone off the bottom of the level...
LDA $14D4,x ; | (if adding 0x50 to the sprite y position would make the high byte >= 2)
ADC #$00 ; |
CMP #$02 ; |
BPL ERASE_SPRITE ; / ...erase the sprite
LDA $167A,x ; \ if "process offscreen" flag is set, return
AND #$04 ; |
BNE RETURN_35 ; /
LDA $13 ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0756 VC:176 00 FL:205
AND #$01 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0780 VC:176 00 FL:205
ORA $03 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0796 VC:176 00 FL:205
STA $01 ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0820 VC:176 00 FL:205
TAY ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0844 VC:176 00 FL:205
LDA $1A ;A:8A01 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizcHC:0858 VC:176 00 FL:205
CLC ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0882 VC:176 00 FL:205
ADC SPR_T14,y ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZcHC:0896 VC:176 00 FL:205
ROL $00 ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizcHC:0928 VC:176 00 FL:205
CMP $E4,x ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:0966 VC:176 00 FL:205
PHP ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:0996 VC:176 00 FL:205
LDA $1B ;A:8AC0 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdizCHC:1018 VC:176 00 FL:205
LSR $00 ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdiZCHC:1042 VC:176 00 FL:205
ADC SPR_T15,y ;A:8A00 X:0009 Y:0001 D:0000 DB:01 S:01F0 P:envMXdizcHC:1080 VC:176 00 FL:205
PLP ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F0 P:eNvMXdizcHC:1112 VC:176 00 FL:205
SBC $14E0,x ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1140 VC:176 00 FL:205
STA $00 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:1172 VC:176 00 FL:205
LSR $01 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:eNvMXdizCHC:1196 VC:176 00 FL:205
BCC SPR_L31 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZCHC:1234 VC:176 00 FL:205
EOR #$80 ;A:8AFF X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdiZCHC:1250 VC:176 00 FL:205
STA $00 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1266 VC:176 00 FL:205
SPR_L31: LDA $00 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1290 VC:176 00 FL:205
BPL RETURN_35 ;A:8A7F X:0009 Y:0001 D:0000 DB:01 S:01F1 P:envMXdizCHC:1314 VC:176 00 FL:205
ERASE_SPRITE: LDA $14C8,x ; \ if sprite status < 8, permanently erase sprite
CMP #$08 ; |
BCC KILL_SPRITE ; /
LDY $161A,x ;A:FF08 X:0007 Y:0001 D:0000 DB:01 S:01F3 P:envMXdiZCHC:1108 VC:059 00 FL:2878
CPY #$FF ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdiZCHC:1140 VC:059 00 FL:2878
BEQ KILL_SPRITE ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdizcHC:1156 VC:059 00 FL:2878
LDA #$00 ;A:FF08 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdizcHC:1172 VC:059 00 FL:2878
STA $1938,y ;A:FF00 X:0007 Y:0000 D:0000 DB:01 S:01F3 P:envMXdiZcHC:1188 VC:059 00 FL:2878
KILL_SPRITE: STZ $14C8,x ; erase sprite
RETURN_35: RTS ; return
VERTICAL_LEVEL: LDA $167A,x ; \ if "process offscreen" flag is set, return
AND #$04 ; |
BNE RETURN_35 ; /
LDA $13 ; \
LSR A ; |
BCS RETURN_35 ; /
LDA $E4,x ; \
CMP #$00 ; | if the sprite has gone off the side of the level...
LDA $14E0,x ; |
SBC #$00 ; |
CMP #$02 ; |
BCS ERASE_SPRITE ; / ...erase the sprite
LDA $13 ;A:0000 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:1218 VC:250 00 FL:5379
LSR A ;A:0016 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1242 VC:250 00 FL:5379
AND #$01 ;A:000B X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1256 VC:250 00 FL:5379
STA $01 ;A:0001 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1272 VC:250 00 FL:5379
TAY ;A:0001 X:0009 Y:00E4 D:0000 DB:01 S:01F3 P:envMXdizcHC:1296 VC:250 00 FL:5379
LDA $1C ;A:001A X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0052 VC:251 00 FL:5379
CLC ;A:00BD X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0076 VC:251 00 FL:5379
ADC SPR_T12,y ;A:00BD X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0090 VC:251 00 FL:5379
ROL $00 ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:enVMXdizCHC:0122 VC:251 00 FL:5379
CMP $D8,x ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0160 VC:251 00 FL:5379
PHP ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0190 VC:251 00 FL:5379
LDA $001D ;A:006D X:0009 Y:0001 D:0000 DB:01 S:01F2 P:eNVMXdizcHC:0212 VC:251 00 FL:5379
LSR $00 ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:enVMXdiZcHC:0244 VC:251 00 FL:5379
ADC SPR_T13,y ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:enVMXdizCHC:0282 VC:251 00 FL:5379
PLP ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F2 P:envMXdiZCHC:0314 VC:251 00 FL:5379
SBC $14D4,x ;A:0000 X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNVMXdizcHC:0342 VC:251 00 FL:5379
STA $00 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0374 VC:251 00 FL:5379
LDY $01 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0398 VC:251 00 FL:5379
BEQ SPR_L38 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0422 VC:251 00 FL:5379
EOR #$80 ;A:00FF X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0438 VC:251 00 FL:5379
STA $00 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0454 VC:251 00 FL:5379
SPR_L38: LDA $00 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0478 VC:251 00 FL:5379
BPL RETURN_35 ;A:007F X:0009 Y:0001 D:0000 DB:01 S:01F3 P:envMXdizcHC:0502 VC:251 00 FL:5379
BMI ERASE_SPRITE ;A:8AFF X:0002 Y:0000 D:0000 DB:01 S:01F3 P:eNvMXdizcHC:0704 VC:184 00 FL:5490
SUB_IS_OFF_SCREEN: LDA $15A0,x ; \ if sprite is on screen, accumulator = 0
ORA $186C,x ; |
RTS ; / return
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; SUB HORZ POS
;
; $B817 - horizontal mario/sprite check - shared
; Y = 1 if mario left of sprite??
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;org $03B817
SUB_HORZ_POS: LDY #$00 ;A:25D0 X:0006 Y:0001 D:0000 DB:03 S:01ED P:eNvMXdizCHC:1020 VC:097 00 FL:31642
LDA $94 ;A:25D0 X:0006 Y:0000 D:0000 DB:03 S:01ED P:envMXdiZCHC:1036 VC:097 00 FL:31642
SEC ;A:25F0 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizCHC:1060 VC:097 00 FL:31642
SBC $E4,x ;A:25F0 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizCHC:1074 VC:097 00 FL:31642
STA $0F ;A:25F4 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1104 VC:097 00 FL:31642
LDA $95 ;A:25F4 X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1128 VC:097 00 FL:31642
SBC $14E0,x ;A:2500 X:0006 Y:0000 D:0000 DB:03 S:01ED P:envMXdiZcHC:1152 VC:097 00 FL:31642
BPL LABEL16 ;A:25FF X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1184 VC:097 00 FL:31642
INY ;A:25FF X:0006 Y:0000 D:0000 DB:03 S:01ED P:eNvMXdizcHC:1200 VC:097 00 FL:31642
LABEL16: RTS ;A:25FF X:0006 Y:0001 D:0000 DB:03 S:01ED P:envMXdizcHC:1214 VC:097 00 FL:31642
In die INIT Routine kommen die Lebenspunkte. Wie schon gesagt wird dafür fast immer $1528,x verwendet. Das machen wir hier dann natürlich auch.
dcb “INIT“
LDA #$05
STA $1528,x
RTL
LDY $1528,x
LDA $157C,x ; Kontrollieren der Bewegungsrichtung des Sprites
BEQ Right
LDA LeftSPd,y
BRA DoSpeed
Right:
LDA RightSpd,y
DoSpeed:
STA $B6,x ; X Geschwindigkeit des Sprites
LDA $#10
STA $AA,x ; Y Geschwindigkeit des Sprites
JSL $01802A
RTS
LeftSpd: dcb $00,$E8,$EB,$EF,$F4,$F8
RightSpd: dcb $00,$18,$15,$11,$C0,$08
LDA $1594,x
CMP #$D5
BEQ TIME_TO_JUMP
INC $1594,x
BRA SHARED
TIME_TO_JUMP:
LDA #$C0
STA $AA,x
JSL $01802A
LDA #$01
STA $1DFA
STZ $1594,x
SHARED:
RTS
SHARED:
JSL $018032 ; Interaktion mit anderen Sprites
JSL $01A7DC
BCC NoContact
LDA $0E
CMP #$E9
BPL SpriteWins
; Mario trifft den Sprite
SpriteWins:
LDA $14900
BNE NoContact ;Tötet den Sprite nicht, wenn man einen Stern hat!
JSL $00F5B7
NoContact:
RTS
JSL $01AB99
JSL $01AA33
LDA #$A0
STA $7D
DEC $1528,x
LDA $1528,x
BEQ KillSprite
LDA #$13
STA $1DF9 ;SFX wenn man auf den Sprite springt.
KillSprite:
; Den könnt ihr selber schreiben :)
$ED $80 $6D $2B ; Header, echo buffer moved to x2B00
$ED $80 $7D $00 ;(remove first semicolons on these 3 lines for level music)
$F0 ; Echo = Off