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Implemented projectile sprite flipping

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blondie7575 2018-12-29 18:10:21 -07:00
parent c72e8c125b
commit 1179aa7678
2 changed files with 21 additions and 20 deletions
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gscats.2mg
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projectile.s
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@ -102,8 +102,9 @@ projectileTypes:
.addr 0 ; Update
.addr 0 ; Render
.addr 0 ; Cleanup
.word 1 ; Directional
.repeat 14
.repeat 12
.byte 0 ; Padding to 32-byte boundary
.endrepeat
@ -117,8 +118,9 @@ projectileTypes:
.addr 0 ; Update
.addr 0 ; Render
.addr 0 ; Cleanup
.word 0 ; Directional
.repeat 14
.repeat 12
.byte 0 ; Padding to 32-byte boundary
.endrepeat
@ -132,8 +134,9 @@ projectileTypes:
.addr updateFan ; Update
.addr renderFan ; Render
.addr deleteFan ; Cleanup
.word 1 ; Directional
.repeat 14
.repeat 12
.byte 0 ; Padding to 32-byte boundary
.endrepeat
@ -147,6 +150,7 @@ PT_DEPLOY = 10
PT_UPDATE = 12
PT_RENDER = 14
PT_CLEANUP = 16
PT_DIRECTIONAL = 18
.macro PROJECTILEPTR_Y
tya ; Pointer to projectile structure from index
@ -717,6 +721,7 @@ renderProjectilesSkip:
; renderProjectile
;
; Y = Offset to projectile structure
; Trashes SCRATCHL
;
renderProjectile:
SAVE_AXY
@ -738,9 +743,6 @@ renderProjectileDoIt:
sta PARAML0
; Determine which sprite to use
lda projectileData+JD_VX,y
bmi renderProjectileNegX
lda projectileData+JD_VY,y
bmi renderProjectileNegYPosX
@ -759,24 +761,23 @@ renderProjectileDownAngle:
lda projectileTypes+PT_FRAME2,x ; Down angle
bra renderProjectileGoSprite
renderProjectileNegX:
lda projectileData+JD_VY,y
bmi renderProjectileNegYNegX
cmp #UPANGLE
bmi renderProjectileFlat
bra renderProjectileDownAngle
renderProjectileNegYNegX:
cmp #DNANGLE
bpl renderProjectileFlat
bra renderProjectileUpAngle
renderProjectileFlat:
lda projectileTypes+PT_FRAME1,x ; Flat
renderProjectileGoSprite:
sta SCRATCHL
lda projectileTypes+PT_DIRECTIONAL,x
beq renderProjectileGoSpriteNormal
lda projectileData+JD_FACING,y ; Projectile is directional, so flip sprite if needed
beq renderProjectileGoSpriteNormal
lda SCRATCHL
inc ; Flip it!
bra renderProjectileGoSpriteFlipped
renderProjectileGoSpriteNormal:
lda SCRATCHL
renderProjectileGoSpriteFlipped:
jsr renderGameObject
; Check for special deployment code