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add ancillae collision to portal rod sprites

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scawful
2024-06-18 20:24:56 -04:00
parent 59bbc4b3ee
commit 85ae27a046
2 changed files with 44 additions and 1 deletions
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37
Items/portal_rod.asm
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@@ -48,8 +48,45 @@ LinkItem_PortalRod:
warnpc $07A568
; Ancilla_CheckSpriteCollision
org $088DC3
JSL Ancilla_HandlePortalCollision : NOP
pullpc
Ancilla_HandlePortalCollision:
{
LDA.w $0E20, Y : CMP.b #$03 : BNE .not_portal_arrow
; Check if Y is the orange or blue portal
LDA.w SprSubtype, Y : CMP.b #$02 : BEQ .blue_portal
CMP.b #$01 : BEQ .orange_portal
.orange_portal
PHY
LDY.w $0632 ; Blue Sprite ID
LDA.w SprX, Y : CLC : ADC.b #$10 : STA.w ANC0XL, X
LDA.w SprY, Y : STA.w ANC0YL, X
LDA.w SprXH, Y : STA.w ANC0XH, X
LDA.w SprYH, Y : STA.w ANC0YH, X
PLY
JMP .continue
.blue_portal
PHY
LDY.w $0633 ; Orange Sprite ID
LDA.w SprX, Y : STA.w ANC0XL, X
LDA.w SprY, Y : CLC : ADC.b #$10 : STA.w ANC0YL, X
LDA.w SprXH, Y : STA.w ANC0XH, X
LDA.w SprYH, Y : STA.w ANC0YH, X
PLY
.continue
LDA.b #$08
RTL
.not_portal_arrow
; Restore arrow deflection sprite code from $088DC3
LDA.w $0B6B,Y : AND.b #$08
RTL
}
macro SpawnPortal(x_offset, y_offset)
REP #$20
LDA $22 : CLC : ADC.w #<x_offset>