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Add Sprite_BounceOffWall, Sprite_InvertSpeed_XY

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scawful
2024-06-27 19:26:23 -04:00
parent ce0b6772cc
commit 07d7c57d9d
1 changed files with 44 additions and 2 deletions
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46
Sprites/ZSpriteLib/sprite_new_functions.asm
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@@ -175,9 +175,51 @@ Sprite_BounceFromTileCollision:
++ RTL ++ RTL
} }
; =========================================================
Sprite_ProjectSpeedRandomly: Sprite_BounceOffWall:
{ LDA.w $0E70,X
AND.b #$03
BEQ .no_horizontal_collision
JSR Sprite_InvertSpeed_X
.no_horizontal_collision
LDA.w $0E70,X
AND.b #$0C
BEQ .no_vertical_collision
JSR Sprite_InvertSpeed_Y
.no_vertical_collision
RTS
; =========================================================
Sprite_InvertSpeed_XY:
JSR Sprite_InvertSpeed_Y
; =========================================================
Sprite_InvertSpeed_X:
LDA.w $0D50,X
EOR.b #$FF
INC A
STA.w $0D50,X
RTS
; =========================================================
Sprite_InvertSpeed_Y:
LDA.w $0D40,X
EOR.b #$FF
INC A
STA.w $0D40,X
RTS
; =========================================================
} }