1 files changed, 81 insertions, 0 deletions
diff --git a/engine/battle/move_effects/haze.asm b/engine/battle/move_effects/haze.asm
new file mode 100644
index 00000000..47723ba2
--- /dev/null
+++ b/engine/battle/move_effects/haze.asm
@@ -0,0 +1,81 @@
+HazeEffect_:
+	ld a, $7
+; store 7 on every stat mod
+	ld hl, wPlayerMonAttackMod
+	call ResetStatMods
+	ld hl, wEnemyMonAttackMod
+	call ResetStatMods
+; copy unmodified stats to battle stats
+	ld hl, wPlayerMonUnmodifiedAttack
+	ld de, wBattleMonAttack
+	call ResetStats
+	ld hl, wEnemyMonUnmodifiedAttack
+	ld de, wEnemyMonAttack
+	call ResetStats
+; cure non-volatile status, but only for the target
+	ld hl, wEnemyMonStatus
+	ld de, wEnemySelectedMove
+	ld a, [H_WHOSETURN]
+	and a
+	jr z, .cureStatuses
+	ld hl, wBattleMonStatus
+	dec de ; wPlayerSelectedMove
+
+.cureStatuses
+	ld a, [hl]
+	ld [hl], $0
+	and SLP | (1 << FRZ)
+	jr z, .cureVolatileStatuses
+; prevent the Pokemon from executing a move if it was asleep or frozen
+	ld a, $ff
+	ld [de], a
+
+.cureVolatileStatuses
+	xor a
+	ld [wPlayerDisabledMove], a
+	ld [wEnemyDisabledMove], a
+	ld hl, wPlayerDisabledMoveNumber
+	ld [hli], a
+	ld [hl], a
+	ld hl, wPlayerBattleStatus1
+	call CureVolatileStatuses
+	ld hl, wEnemyBattleStatus1
+	call CureVolatileStatuses
+	ld hl, PlayCurrentMoveAnimation
+	call CallBankF
+	ld hl, StatusChangesEliminatedText
+	jp PrintText
+
+CureVolatileStatuses:
+	res CONFUSED, [hl]
+	inc hl ; BATTSTATUS2
+	ld a, [hl]
+	; clear USING_X_ACCURACY, PROTECTED_BY_MIST, GETTING_PUMPED, and SEEDED statuses
+	and $ff ^((1 << USING_X_ACCURACY) | (1 << PROTECTED_BY_MIST) | (1 << GETTING_PUMPED) | (1 << SEEDED))
+	ld [hli], a ; BATTSTATUS3
+	ld a, [hl]
+	and %11110000 | (1 << TRANSFORMED) ; clear Bad Poison, Reflect and Light Screen statuses
+	ld [hl], a
+	ret
+
+ResetStatMods:
+	ld b, $8
+.loop
+	ld [hli], a
+	dec b
+	jr nz, .loop
+	ret
+
+ResetStats:
+	ld b, $8
+.loop
+	ld a, [hli]
+	ld [de], a
+	inc de
+	dec b
+	jr nz, .loop
+	ret
+
+StatusChangesEliminatedText:
+	TX_FAR _StatusChangesEliminatedText
+	db "@"