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sprite collision pseudocode

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Dagen Brock 2014-04-27 10:25:08 -05:00
parent ae336fa2de
commit 2ba14b086b
1 changed files with 29 additions and 1 deletions
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src/flapple.s
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@ -65,7 +65,35 @@ SKIP
** Doesn't handle odd horizontal displacement, but vertical works.
DrawSpriteC rts
* for y
* SETLINEPTRS()
* for x
* load imask,x
* beq :DRAWMASKEDPIXEL
*
* FANCYCOLLISION ; "pixel" level
* load SCREEN,x
* and IMASK,x
* cmp BGNIB1
* beq :NOCOLLISION
* cmp BGNIB2
* beq :NOCOLLISION
* lda 1
* sta COLLISION
* bra :DRAWMASKEDPIXEL
* SIMPLECOLLISION
* load SCREEN,x
* cmp #BGCOLOR
* beq :NOCOLLISION
* lda 1
* sta COLLISION
*:NOCOLLISION
*:DRAWMASKEDPIXEL
* load SCREEN,(IDX)X
* and MASK,x ; can I reuse (IDX)X?
* or MAIN/AUX,x
* sta SCREEN,(IDX)X
GameLoop
; handle input