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https://github.com/pret/pokered.git
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160 lines
2.7 KiB
NASM
Executable file
160 lines
2.7 KiB
NASM
Executable file
EvolveMon:
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push hl
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push de
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push bc
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ld a, [wcf91]
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push af
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ld a, [wd0b5]
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push af
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xor a
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ld [wLowHealthAlarm], a
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ld [wChannelSoundIDs + Ch5], a
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dec a
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ld [wNewSoundID], a
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call PlaySound
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ld a, $1
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ld [H_AUTOBGTRANSFERENABLED], a
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ld a, SFX_TINK
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call PlaySound
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call Delay3
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xor a
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ld [H_AUTOBGTRANSFERENABLED], a
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ld [hTilesetType], a
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ld a, [wEvoOldSpecies]
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ld [wWholeScreenPaletteMonSpecies], a
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ld c, 0
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call EvolutionSetWholeScreenPalette
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ld a, [wEvoNewSpecies]
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ld [wcf91], a
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ld [wd0b5], a
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call Evolution_LoadPic
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ld de, vFrontPic
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ld hl, vBackPic
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ld bc, 7 * 7
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call CopyVideoData
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ld a, [wEvoOldSpecies]
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ld [wcf91], a
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ld [wd0b5], a
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call Evolution_LoadPic
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ld a, $1
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ld [H_AUTOBGTRANSFERENABLED], a
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ld a, [wEvoOldSpecies]
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call PlayCry
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call WaitForSoundToFinish
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ld c, BANK(Music_SafariZone)
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ld a, MUSIC_SAFARI_ZONE
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call PlayMusic
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ld c, 80
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call DelayFrames
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ld c, 1 ; set PAL_BLACK instead of mon palette
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call EvolutionSetWholeScreenPalette
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lb bc, $1, $10
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.animLoop
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push bc
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call Evolution_CheckForCancel
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jr c, .evolutionCancelled
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call Evolution_BackAndForthAnim
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pop bc
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inc b
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dec c
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dec c
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jr nz, .animLoop
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xor a
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ld [wEvoCancelled], a
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ld a, $31
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ld [wEvoMonTileOffset], a
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call Evolution_ChangeMonPic ; show the new species pic
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ld a, [wEvoNewSpecies]
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.done
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ld [wWholeScreenPaletteMonSpecies], a
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ld a, $ff
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ld [wNewSoundID], a
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call PlaySound
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ld a, [wWholeScreenPaletteMonSpecies]
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call PlayCry
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ld c, 0
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call EvolutionSetWholeScreenPalette
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pop af
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ld [wd0b5], a
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pop af
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ld [wcf91], a
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pop bc
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pop de
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pop hl
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ld a, [wEvoCancelled]
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and a
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ret z
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scf
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ret
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.evolutionCancelled
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pop bc
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ld a, 1
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ld [wEvoCancelled], a
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ld a, [wEvoOldSpecies]
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jr .done
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EvolutionSetWholeScreenPalette:
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ld b, SET_PAL_POKEMON_WHOLE_SCREEN
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jp RunPaletteCommand
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Evolution_LoadPic:
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call GetMonHeader
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coord hl, 7, 2
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jp LoadFlippedFrontSpriteByMonIndex
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Evolution_BackAndForthAnim:
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; show the mon change back and forth between the new and old species b times
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ld a, $31
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ld [wEvoMonTileOffset], a
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call Evolution_ChangeMonPic
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ld a, -$31
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ld [wEvoMonTileOffset], a
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call Evolution_ChangeMonPic
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dec b
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jr nz, Evolution_BackAndForthAnim
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ret
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Evolution_ChangeMonPic:
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push bc
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xor a
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ld [H_AUTOBGTRANSFERENABLED], a
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coord hl, 7, 2
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lb bc, 7, 7
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ld de, SCREEN_WIDTH - 7
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.loop
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push bc
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.innerLoop
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ld a, [wEvoMonTileOffset]
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add [hl]
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ld [hli], a
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dec c
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jr nz, .innerLoop
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pop bc
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add hl, de
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dec b
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jr nz, .loop
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ld a, 1
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ld [H_AUTOBGTRANSFERENABLED], a
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call Delay3
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pop bc
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ret
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Evolution_CheckForCancel:
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call DelayFrame
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push bc
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call JoypadLowSensitivity
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ld a, [hJoy5]
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pop bc
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and B_BUTTON
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jr nz, .pressedB
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.notAllowedToCancel
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dec c
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jr nz, Evolution_CheckForCancel
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and a
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ret
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.pressedB
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ld a, [wForceEvolution]
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and a
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jr nz, .notAllowedToCancel
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scf
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ret
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