53 lines
2.2 KiB
NASM
53 lines
2.2 KiB
NASM
;================================================================================
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; Lamp Mantle & Light Cone Fix
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;--------------------------------------------------------------------------------
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; Output: 0 for darkness, 1 for lamp cone
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;--------------------------------------------------------------------------------
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LampCheck:
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LDA.l LightConeModifier : BNE .lamp
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LDA.l LampEquipment : BNE .lamp ; skip if we already have lantern
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LDA.w DungeonID : CMP.b #$04 : BCS + ; are we en HC?
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LDA.l LampConeSewers : RTL
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+ : TDC
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.lamp
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RTL
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;================================================================================
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;--------------------------------------------------------------------------------
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; Output: 0 locked, 1 open
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;--------------------------------------------------------------------------------
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CheckForZelda:
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LDA.l ProgressIndicator : CMP.b #$02 : !BLT + ; Skip if rain is falling
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LDA.b #$01 ; pretend we have zelda anyway
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RTL
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+
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LDA.l FollowerIndicator
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RTL
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;================================================================================
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SetOverlayIfLamp:
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JSL LampCheck
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STA.b SUBDESQ ; write it directly to the overlay, this isn't a terrible idea at all
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RTL
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;================================================================================
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; Mantle Object Changes
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;--------------------------------------------------------------------------------
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Mantle_CorrectPosition:
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LDA.l ProgressFlags : AND.b #$04 : BEQ +
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LDA.b #$0A : STA.w SpritePosXLow, X ; just spawn it off to the side where we know it should be
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LDA.b #$03 : STA.w SpritePosXHigh, X
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LDA.b #$90 : STA.w SpriteSpawnStep, X
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+
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LDA.w SpritePosYLow, X : !ADD.b #$03 ; thing we did originally
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RTL
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;================================================================================
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; Mirror Scroll -> Spawn at Zelda's Cell
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;--------------------------------------------------------------------------------
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MirrorScrollSpawnZelda:
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LDA.l MirrorEquipment : CMP.b #$01 : BNE + ;mirror scroll
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LDA.l StartingEntrance : CMP.b #$02 : BEQ ++ ; zelda's cell
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CMP.b #$04 : BNE +
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++ INC.w RespawnFlag
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; what we replaced
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+ STZ.b GameSubMode : STZ.b NMISTRIPES
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RTL
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