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Move UpdateCachedCoords, RoundCoords to sprite_functions

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scawful
2025-02-13 09:18:40 -05:00
parent 875a9b5e89
commit 5a192edf13
2 changed files with 23 additions and 32 deletions
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21
Core/sprite_functions.asm
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@@ -138,6 +138,27 @@ Sprite_InvertSpeed_Y:
STA.w SprYSpeed, X
RTL
UpdateCachedCoords:
{
LDA.w SprY, X : STA.w SprCachedY+0
LDA.w SprX, X : STA.w SprCachedX+0
LDA.w SprYH, X : STA.w SprCachedY+1
LDA.w SprXH, X : STA.w SprCachedX+1
RTS
}
RoundCoords:
{
; Clamp the Y coord to the nearest multiple of 8.
LDA.b $00 : CLC : ADC.b #$04 : AND.b #$F8 : STA.b $00 : STA.w SprY, X
; Clamp the X coord to the nearest multiple of 8.
LDA.b $02 : CLC : ADC.b #$04 : AND.b #$F8 : STA.b $02 : STA.w SprX, X
JSR UpdateCachedCoords
RTS
}
; =========================================================
Sprite_SelectNewDirection:

34
Sprites/Objects/minecart.asm
View File

@@ -91,7 +91,7 @@ Right = $03
; it in the same place upon returning to that room.
; There is a total possibility of 0x20 different subtypes that can be set.
; Therefore there can be a total of 0x20 different tracks.
; Therefore there can be a total of 0x20 different tracks.
; This value is used to keep track of which room the minecart was left
; in. Currently #$00 is reserved to keep track of new tracks that have
@@ -154,10 +154,8 @@ Right = $03
Sprite_Minecart_Long:
{
PHB : PHK : PLB
JSR Sprite_Minecart_DrawTop ; Draw behind Link
JSR Sprite_Minecart_DrawBottom ; Draw in front of Link
JSL Sprite_CheckActive : BCC .SpriteIsNotActive
JSR Sprite_Minecart_Main
.SpriteIsNotActive
@@ -188,7 +186,7 @@ Sprite_Minecart_Prep:
BRA .killMinecart
.notInCart
.notSameTrack
REP #$20
; Check if the track has already been initialized. If not we need to
; tell the game where the cart on the track starts
@@ -275,7 +273,6 @@ Sprite_Minecart_Prep:
.active2
STZ.w SprTimerB, X
LDA.w SprMiscB, X : CMP.b #$00 : BEQ .north
CMP.b #$01 : BEQ .east
CMP.b #$02 : BEQ .south
@@ -1116,33 +1113,6 @@ CheckForTrackTiles:
; =========================================================
; NOTE TO SCAWFUL: This function could really go in a generic sprite
; functions file but I'll leave that up to you.
UpdateCachedCoords:
{
LDA.w SprY, X : STA.w SprCachedY+0
LDA.w SprX, X : STA.w SprCachedX+0
LDA.w SprYH, X : STA.w SprCachedY+1
LDA.w SprXH, X : STA.w SprCachedX+1
RTS
}
; NOTE TO SCAWFUL: This function could really go in a generic sprite
; functions file but I'll leave that up to you.
RoundCoords:
{
; Clamp the Y coord to the nearest multiple of 8.
LDA.b $00 : CLC : ADC.b #$04 : AND.b #$F8 : STA.b $00 : STA.w SprY, X
; Clamp the X coord to the nearest multiple of 8.
LDA.b $02 : CLC : ADC.b #$04 : AND.b #$F8 : STA.b $02 : STA.w SprX, X
JSR UpdateCachedCoords
RTS
}
; $04 = sprite index of sprite ID $B0
; SEC if sprite is present.
CheckTrackSpritePresence: