Rename battle files and split move effects Part 1

1.asm, 4.asm, and 4_2.asm

engine/battle/moveEffects/conversion_effect.asm

@@ -0,0 +1,34 @@
+ConversionEffect_: ; 139a3 (4:79a3)
+	ld hl, wEnemyMonType1
+	ld de, wBattleMonType1
+	ld a, [H_WHOSETURN]
+	and a
+	ld a, [W_ENEMYBATTSTATUS1]
+	jr z, .asm_139b8
+	push hl
+	ld h, d
+	ld l, e
+	pop de
+	ld a, [W_PLAYERBATTSTATUS1]
+.asm_139b8
+	bit Invulnerable, a ; is mon immune to typical attacks (dig/fly)
+	jr nz, PrintButItFailedText
+	ld a, [hli]
+	ld [de], a
+	inc de
+	ld a, [hl]
+	ld [de], a
+	ld hl, PlayCurrentMoveAnimation
+	call CallBankF
+	ld hl, ConvertedTypeText
+	jp PrintText
+
+ConvertedTypeText: ; 139cd (4:79cd)
+	TX_FAR _ConvertedTypeText
+	db "@"
+
+PrintButItFailedText: ; 139d2 (4:79d2)
+	ld hl, PrintButItFailedText_
+CallBankF: ; 139d5 (4:79d5)
+	ld b, BANK(PrintButItFailedText_)
+	jp Bankswitch

engine/battle/moveEffects/drain_hp_effect.asm

@@ -0,0 +1,104 @@
+DrainHPEffect_: ; 783f (1:783f)
+	ld hl, W_DAMAGE 
+	ld a, [hl]
+	srl a ; divide damage by 2
+	ld [hli], a
+	ld a, [hl]
+	rr a
+	ld [hld], a
+	or [hl] ; is damage 0?
+	jr nz, .getAttackerHP
+; if damage is 0, increase to 1 so that the attacker gains at least 1 HP
+	inc hl
+	inc [hl]
+.getAttackerHP
+	ld hl, wBattleMonHP
+	ld de, wBattleMonMaxHP
+	ld a, [H_WHOSETURN]
+	and a
+	jp z, .addDamageToAttackerHP
+	ld hl, wEnemyMonHP 
+	ld de, wEnemyMonMaxHP 
+.addDamageToAttackerHP
+	ld bc, wHPBarOldHP+1
+; copy current HP to wHPBarOldHP
+	ld a, [hli]
+	ld [bc], a
+	ld a, [hl]
+	dec bc
+	ld [bc], a
+; copy max HP to wHPBarMaxHP
+	ld a, [de]
+	dec bc
+	ld [bc], a
+	inc de
+	ld a, [de]
+	dec bc
+	ld [bc], a
+; add damage to attacker's HP and copy new HP to wHPBarNewHP
+	ld a, [W_DAMAGE + 1]
+	ld b, [hl]
+	add b
+	ld [hld], a
+	ld [wHPBarNewHP], a
+	ld a, [W_DAMAGE] 
+	ld b, [hl]
+	adc b
+	ld [hli], a
+	ld [wHPBarNewHP+1], a
+	jr c, .capToMaxHP ; if HP > 65,535, cap to max HP
+; compare HP with max HP
+	ld a, [hld]
+	ld b, a
+	ld a, [de]
+	dec de
+	sub b
+	ld a, [hli]
+	ld b, a
+	ld a, [de]
+	inc de
+	sbc b
+	jr nc, .next
+.capToMaxHP
+	ld a, [de]
+	ld [hld], a
+	ld [wHPBarNewHP], a
+	dec de
+	ld a, [de]
+	ld [hli], a
+	ld [wHPBarNewHP+1], a
+	inc de
+.next
+	ld a, [H_WHOSETURN]
+	and a
+	hlCoord 10, 9
+	ld a, $1
+	jr z, .next2
+	hlCoord 2, 2
+	xor a
+.next2
+	ld [wHPBarType], a
+	predef UpdateHPBar2
+	predef DrawPlayerHUDAndHPBar
+	predef DrawEnemyHUDAndHPBar
+	callab ReadPlayerMonCurHPAndStatus
+	ld hl, SuckedHealthText
+	ld a, [H_WHOSETURN]
+	and a
+	ld a, [W_PLAYERMOVEEFFECT]
+	jr z, .next3
+	ld a, [W_ENEMYMOVEEFFECT] 
+.next3
+	cp DREAM_EATER_EFFECT
+	jr nz, .printText
+	ld hl, DreamWasEatenText
+.printText
+	jp PrintText
+
+SuckedHealthText: ; 78dc (1:78dc)
+	TX_FAR _SuckedHealthText
+	db "@"
+
+DreamWasEatenText: ; 78e1 (1:78e1)
+	TX_FAR _DreamWasEatenText
+	db "@"

engine/battle/moveEffects/haze_effect.asm

@@ -0,0 +1,76 @@
+HazeEffect_: ; 139da (4:79da)
+	ld a, $7
+	ld hl, wPlayerMonAttackMod
+	call ResetStatMods
+	ld hl, wEnemyMonAttackMod
+	call ResetStatMods
+	ld hl, wPlayerMonUnmodifiedAttack
+	ld de, wBattleMonAttack
+	call ResetStats
+	ld hl, wEnemyMonUnmodifiedAttack
+	ld de, wEnemyMonAttack
+	call ResetStats
+	ld hl, wEnemyMonStatus
+	ld de, wEnemySelectedMove
+	ld a, [H_WHOSETURN]
+	and a
+	jr z, .asm_13a09
+	ld hl, wBattleMonStatus
+	dec de
+
+.asm_13a09
+	ld a, [hl]
+	ld [hl], $0
+	and $27
+	jr z, .asm_13a13
+	ld a, $ff
+	ld [de], a
+
+.asm_13a13
+	xor a
+	ld [W_PLAYERDISABLEDMOVE], a
+	ld [W_ENEMYDISABLEDMOVE], a
+	ld hl, wccee
+	ld [hli], a
+	ld [hl], a
+	ld hl, W_PLAYERBATTSTATUS1
+	call CureStatuses
+	ld hl, W_ENEMYBATTSTATUS1
+	call CureStatuses
+	ld hl, PlayCurrentMoveAnimation
+	call CallBankF
+	ld hl, StatusChangesEliminatedText
+	jp PrintText
+
+CureStatuses: ; 13a37 (4:7a37)
+	res Confused, [hl]
+	inc hl ; BATTSTATUS2
+	ld a, [hl]
+	and (1 << UsingRage) | (1 << NeedsToRecharge) | (1 << HasSubstituteUp) | (1 << 3) ; clear all but these from BATTSTATUS2
+	ld [hli], a ; BATTSTATUS3
+	ld a, [hl]
+	and %11110000 | (1 << Transformed) ; clear Bad Poison, Reflect and Light Screen statuses
+	ld [hl], a
+	ret
+
+ResetStatMods: ; 13a43 (4:7a43)
+	ld b, $8
+.loop
+	ld [hli], a
+	dec b
+	jr nz, .loop
+	ret
+
+ResetStats: ; 13a4a (4:7a4a)
+	ld b, $8
+.loop
+	ld a, [hli]
+	ld [de], a
+	inc de
+	dec b
+	jr nz, .loop
+	ret
+
+StatusChangesEliminatedText: ; 13a53 (4:7a53)
+	TX_FAR _StatusChangesEliminatedText
+	db "@"

engine/battle/moveEffects/recoil_effect.asm

@@ -0,0 +1,68 @@
+RecoilEffect_: ; 1392c (4:792c)
+	ld a, [H_WHOSETURN]
+	and a
+	ld a, [W_PLAYERMOVENUM]
+	ld hl, wBattleMonMaxHP
+	jr z, .asm_1393d
+	ld a, [W_ENEMYMOVENUM]
+	ld hl, wEnemyMonMaxHP
+.asm_1393d
+	ld d, a
+	ld a, [W_DAMAGE]
+	ld b, a
+	ld a, [W_DAMAGE + 1]
+	ld c, a
+	srl b
+	rr c
+	ld a, d
+	cp STRUGGLE
+	jr z, .asm_13953
+	srl b
+	rr c
+.asm_13953
+	ld a, b
+	or c
+	jr nz, .asm_13958
+	inc c
+.asm_13958
+	ld a, [hli]
+	ld [wHPBarMaxHP+1], a
+	ld a, [hl]
+	ld [wHPBarMaxHP], a
+	push bc
+	ld bc, $fff2
+	add hl, bc
+	pop bc
+	ld a, [hl]
+	ld [wHPBarOldHP], a
+	sub c
+	ld [hld], a
+	ld [wHPBarNewHP], a
+	ld a, [hl]
+	ld [wHPBarOldHP+1], a
+	sbc b
+	ld [hl], a
+	ld [wHPBarNewHP+1], a
+	jr nc, .asm_13982
+	xor a
+	ld [hli], a
+	ld [hl], a
+	ld hl, wHPBarNewHP
+	ld [hli], a
+	ld [hl], a
+.asm_13982
+	hlCoord 10, 9
+	ld a, [H_WHOSETURN]
+	and a
+	ld a, $1
+	jr z, .asm_13990
+	hlCoord 2, 2
+	xor a
+.asm_13990
+	ld [wHPBarType], a
+	predef UpdateHPBar2
+	ld hl, HitWithRecoilText
+	jp PrintText
+HitWithRecoilText: ; 1399e (4:799e)
+	TX_FAR _HitWithRecoilText
+	db "@"