77 lines
2.5 KiB
NASM
77 lines
2.5 KiB
NASM
;================================================================================
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; Door Frame Fixes
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;================================================================================
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;--------------------------------------------------------------------------------
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; StoreLastOverworldDoorID
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;--------------------------------------------------------------------------------
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StoreLastOverworldDoorID:
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TXA : INC
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STA $7F5099
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LDA $1BBB73, X : STA $010E
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RTL
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;--------------------------------------------------------------------------------
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;--------------------------------------------------------------------------------
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; CacheDoorFrameData
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;--------------------------------------------------------------------------------
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CacheDoorFrameData:
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LDA $7F5099 : BEQ .originalBehaviour
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DEC : ASL : TAX
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LDA EntranceDoorFrameTable, X : STA $0696
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LDA EntranceAltDoorFrameTable, X : STA $0698
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BRA .done
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.originalBehaviour
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LDA $D724, X : STA $0696
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STZ $0698
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.done
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RTL
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;--------------------------------------------------------------------------------
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;--------------------------------------------------------------------------------
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; WalkDownIntoTavern
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;--------------------------------------------------------------------------------
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WalkDownIntoTavern:
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LDA $7F5099
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; tavern door has index 0x42 (saved off value is incremented by one)
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CMP #$43
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RTL
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;--------------------------------------------------------------------------------
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;--------------------------------------------------------------------------------
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; TurnAroundOnUnderworld
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;--------------------------------------------------------------------------------
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TurnAroundOnUnderworld:
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LDA $26 : BEQ .done
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; turn around if ($010E == #$43) != ($7F5099 == #$43)
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LDX #$00
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LDA #$43 : CMP $010E : BEQ +
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INX
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+
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CMP $7F5099 : BEQ +
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DEX
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+
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CPX #$00 : BEQ .done
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LDA $26 : EOR #$0C : STA $26
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.done
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JML $0FFD65 ; what we overwrote
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;--------------------------------------------------------------------------------
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; TurnUpOnOverworld
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;--------------------------------------------------------------------------------
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TurnUpOnOverworld:
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LDA.l EntranceTavernBack : CMP #$43 : BEQ .done
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LDA #$08 : STA $26 ; only fix this glitch if exit not vanilla
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.done
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JML $07E68F ; what we overwrote
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;--------------------------------------------------------------------------------
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; WalkUpOnOverworld
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;--------------------------------------------------------------------------------
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WalkUpOnOverworld:
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LDA $20 : CMP #$091B : BNE .normal ; hardcoded Y coordinate
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STZ $2F
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RTL
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.normal
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LDA #$0002 : STA $2F ; what we overwrote
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RTL |