43 lines
1.1 KiB
Python
43 lines
1.1 KiB
Python
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from ..assembler import ASM
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def fixHeartPiece(rom):
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# Patch all locations where the piece of heart is rendered.
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rom.patch(0x03, 0x1b52, ASM("ld de, $5A4D\ncall $3BC0"), ASM("ld a, $04\nrst 8"), fill_nop=True) # state 0
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# Write custom code in the first state handler, this overwrites all state handlers
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# Till state 5.
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rom.patch(0x03, 0x1A74, 0x1A98, ASM("""
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; Render sprite
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ld a, $05
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rst 8
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; Handle item effect
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ld a, $06 ; giveItemMultiworld
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rst 8
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;Show message
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ld a, $0A ; showMessageMultiworld
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rst 8
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; Switch to state 5
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ld hl, $C290; stateTable
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add hl, bc
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ld [hl], $05
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ret
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"""), fill_nop=True)
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# Insert a state 5 handler
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rom.patch(0x03, 0x1A98, 0x1B17, ASM("""
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; Render sprite
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ld a, $05
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rst 8
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ld a, [$C19F] ; dialog state
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and a
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ret nz
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call $512A ; mark room as done
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call $3F8D ; unload entity
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ret
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"""), fill_nop=True)
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