Files
alttpr-baserom/lampmantlecone.asm

40 lines
1.6 KiB
NASM

;================================================================================
; Lamp Mantle & Light Cone Fix
;--------------------------------------------------------------------------------
; Output: 0 for darkness, 1 for lamp cone
;--------------------------------------------------------------------------------
LampCheck:
LDA $7F50C4 : CMP.b #$01 : BNE + : RTL : +
CMP.b #$FF : BNE + : INC : RTL : +
LDA LampEquipment : BNE .done ; skip if we already have lantern
LDA $040C : CMP.b #$FF : BEQ +
CMP.b #$04 : BCS + ; check if we're in HC
LDA LampConeSewers : BRA .done
+ LDA CurrentWorld : BNE +
LDA LampConeLightWorld : BRA .done
+ LDA LampConeDarkWorld
.done
;BNE + : STZ $1D : + ; remember to turn cone off after a torch
RTL
;================================================================================
;--------------------------------------------------------------------------------
; Output: 0 locked, 1 open
;--------------------------------------------------------------------------------
CheckForZelda:
LDA.l ProgressIndicator : CMP.b #$02 : !BLT + ; Skip if rain is falling
LDA.b #$01 ; pretend we have zelda anyway
RTL
+
LDA FollowerIndicator
RTL
;================================================================================
;--------------------------------------------------------------------------------
SetOverlayIfLamp:
JSL.l LampCheck
STA $1D ; write it directly to the overlay, this isn't a terrible idea at all
RTL
;================================================================================
;LDA CurrentWorld : EOR #$40 : LSR #6 : AND #$01 ; return the same result as having the lantern in the light world