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117 lines
2.1 KiB
NASM
117 lines
2.1 KiB
NASM
BattleCommand_Sketch:
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call ClearLastMove
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; Don't sketch during a link battle
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ld a, [wLinkMode]
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and a
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jr z, .not_linked
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call AnimateFailedMove
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jp PrintNothingHappened
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.not_linked
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; If the opponent has a substitute up, fail.
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call CheckSubstituteOpp
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jp nz, .fail
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; If the opponent is transformed, fail.
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; BUG: A Transformed Pokémon can use Sketch and learn otherwise unobtainable moves (see docs/bugs_and_glitches.md)
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ld a, BATTLE_VARS_SUBSTATUS5_OPP
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call GetBattleVarAddr
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bit SUBSTATUS_TRANSFORMED, [hl]
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jp nz, .fail
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; Get the user's moveset in its party struct.
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; This move replacement shall be permanent.
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; Pointer will be in de.
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ld a, MON_MOVES
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call UserPartyAttr
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ld d, h
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ld e, l
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; Get the battle move structs.
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ld hl, wBattleMonMoves
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ldh a, [hBattleTurn]
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and a
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jr z, .get_last_move
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ld hl, wEnemyMonMoves
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.get_last_move
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ld a, BATTLE_VARS_LAST_COUNTER_MOVE_OPP
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call GetBattleVar
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ld [wNamedObjectIndex], a
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ld b, a
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; Fail if move is invalid or is Struggle.
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and a
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jr z, .fail
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cp STRUGGLE
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jr z, .fail
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; Fail if user already knows that move
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ld c, NUM_MOVES
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.does_user_already_know_move
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ld a, [hli]
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cp b
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jr z, .fail
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dec c
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jr nz, .does_user_already_know_move
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; Find Sketch in the user's moveset.
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; Pointer in hl, and index in c.
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dec hl
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ld c, NUM_MOVES
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.find_sketch
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dec c
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ld a, [hld]
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cp SKETCH
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jr nz, .find_sketch
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inc hl
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; The Sketched move is loaded to that slot.
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ld a, b
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ld [hl], a
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; Copy the base PP from that move.
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push bc
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push hl
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dec a
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ld hl, Moves + MOVE_PP
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call GetMoveAttr
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pop hl
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ld bc, wBattleMonPP - wBattleMonMoves
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add hl, bc
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ld [hl], a
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pop bc
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ldh a, [hBattleTurn]
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and a
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jr z, .user_trainer
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ld a, [wBattleMode]
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dec a
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jr nz, .user_trainer
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; wildmon
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ld a, [hl]
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push bc
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ld hl, wWildMonPP
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ld b, 0
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add hl, bc
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ld [hl], a
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ld hl, wWildMonMoves
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add hl, bc
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pop bc
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ld [hl], b
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jr .done_copy
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.user_trainer
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ld a, [hl]
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push af
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ld l, c
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ld h, 0
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add hl, de
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ld a, b
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ld [hl], a
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pop af
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ld de, MON_PP - MON_MOVES
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add hl, de
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ld [hl], a
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.done_copy
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call GetMoveName
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call AnimateCurrentMove
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ld hl, SketchedText
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jp StdBattleTextbox
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.fail
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call AnimateFailedMove
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jp PrintDidntAffect
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