1 files changed, 257 insertions, 0 deletions
diff --git a/engine/battle/misc.asm b/engine/battle/misc.asm
new file mode 100644
index 000000000..b05dc8071
--- /dev/null
+++ b/engine/battle/misc.asm
@@ -0,0 +1,257 @@
+_DisappearUser: ; fbd54
+	xor a
+	ld [hBGMapMode], a
+	ld a, [hBattleTurn]
+	and a
+	jr z, .player
+	call GetEnemyFrontpicCoords
+	jr .okay
+.player
+	call GetPlayerBackpicCoords
+.okay
+	call ClearBox
+	jr FinishAppearDisappearUser
+
+_AppearUserRaiseSub: ; fbd69 (3e:7d69)
+	farcall BattleCommand_RaiseSubNoAnim
+	jr AppearUser
+
+_AppearUserLowerSub: ; fbd71 (3e:7d71)
+	farcall BattleCommand_LowerSubNoAnim
+
+AppearUser: ; fbd77 (3e:7d77)
+	xor a
+	ld [hBGMapMode], a
+	ld a, [hBattleTurn]
+	and a
+	jr z, .player
+	call GetEnemyFrontpicCoords
+	xor a
+	jr .okay
+.player
+	call GetPlayerBackpicCoords
+	ld a, $31
+.okay
+	ld [hGraphicStartTile], a
+	predef PlaceGraphic
+FinishAppearDisappearUser: ; fbd91 (3e:7d91)
+	ld a, $1
+	ld [hBGMapMode], a
+	ret
+
+GetEnemyFrontpicCoords: ; fbd96 (3e:7d96)
+	hlcoord 12, 0
+	lb bc, 7, 7
+	ret
+
+GetPlayerBackpicCoords: ; fbd9d (3e:7d9d)
+	hlcoord 2, 6
+	lb bc, 6, 6
+	ret
+
+
+DoWeatherModifiers: ; fbda4
+
+	ld de, .WeatherTypeModifiers
+	ld a, [Weather]
+	ld b, a
+	ld a, [wd265] ; move type
+	ld c, a
+
+.CheckWeatherType:
+	ld a, [de]
+	inc de
+	cp $ff
+	jr z, .done_weather_types
+
+	cp b
+	jr nz, .NextWeatherType
+
+	ld a, [de]
+	cp c
+	jr z, .ApplyModifier
+
+.NextWeatherType:
+	inc de
+	inc de
+	jr .CheckWeatherType
+
+
+.done_weather_types
+	ld de, .WeatherMoveModifiers
+
+	ld a, BATTLE_VARS_MOVE_EFFECT
+	call GetBattleVar
+	ld c, a
+
+.CheckWeatherMove:
+	ld a, [de]
+	inc de
+	cp $ff
+	jr z, .done
+
+	cp b
+	jr nz, .NextWeatherMove
+
+	ld a, [de]
+	cp c
+	jr z, .ApplyModifier
+
+.NextWeatherMove:
+	inc de
+	inc de
+	jr .CheckWeatherMove
+
+.ApplyModifier:
+	xor a
+	ld [hMultiplicand + 0], a
+	ld hl, CurDamage
+	ld a, [hli]
+	ld [hMultiplicand + 1], a
+	ld a, [hl]
+	ld [hMultiplicand + 2], a
+
+	inc de
+	ld a, [de]
+	ld [hMultiplier], a
+
+	call Multiply
+
+	ld a, 10
+	ld [hDivisor], a
+	ld b, $4
+	call Divide
+
+	ld a, [hQuotient + 0]
+	and a
+	ld bc, -1
+	jr nz, .Update
+
+	ld a, [hQuotient + 1]
+	ld b, a
+	ld a, [hQuotient + 2]
+	ld c, a
+	or b
+	jr nz, .Update
+
+	ld bc, 1
+
+.Update:
+	ld a, b
+	ld [CurDamage], a
+	ld a, c
+	ld [CurDamage + 1], a
+
+.done
+	ret
+
+.WeatherTypeModifiers:
+	db WEATHER_RAIN, WATER, 15
+	db WEATHER_RAIN, FIRE,  05
+	db WEATHER_SUN,  FIRE,  15
+	db WEATHER_SUN,  WATER, 05
+	db $ff
+
+.WeatherMoveModifiers:
+	db WEATHER_RAIN, EFFECT_SOLARBEAM, 05
+	db $ff
+; fbe24
+
+
+DoBadgeTypeBoosts: ; fbe24
+	ld a, [wLinkMode]
+	and a
+	ret nz
+
+	ld a, [InBattleTowerBattle]
+	and a
+	ret nz
+
+	ld a, [hBattleTurn]
+	and a
+	ret nz
+
+	push de
+	push bc
+
+	ld hl, .BadgeTypes
+
+	ld a, [KantoBadges]
+	ld b, a
+	ld a, [JohtoBadges]
+	ld c, a
+
+.CheckBadge:
+	ld a, [hl]
+	cp $ff
+	jr z, .done
+
+	srl b
+	rr c
+	jr nc, .NextBadge
+
+	ld a, [wd265] ; move type
+	cp [hl]
+	jr z, .ApplyBoost
+
+.NextBadge:
+	inc hl
+	jr .CheckBadge
+
+.ApplyBoost:
+	ld a, [CurDamage]
+	ld h, a
+	ld d, a
+	ld a, [CurDamage + 1]
+	ld l, a
+	ld e, a
+
+	srl d
+	rr e
+	srl d
+	rr e
+	srl d
+	rr e
+
+	ld a, e
+	or d
+	jr nz, .done_min
+	ld e, 1
+
+.done_min
+	add hl, de
+	jr nc, .Update
+
+	ld hl, $ffff
+
+.Update:
+	ld a, h
+	ld [CurDamage], a
+	ld a, l
+	ld [CurDamage + 1], a
+
+.done
+	pop bc
+	pop de
+	ret
+
+.BadgeTypes:
+	db FLYING   ; zephyrbadge
+	db BUG      ; hivebadge
+	db NORMAL   ; plainbadge
+	db GHOST    ; fogbadge
+	db STEEL    ; mineralbadge
+	db FIGHTING ; stormbadge
+	db ICE      ; glacierbadge
+	db DRAGON   ; risingbadge
+
+	db ROCK     ; boulderbadge
+	db WATER    ; cascadebadge
+	db ELECTRIC ; thunderbadge
+	db GRASS    ; rainbowbadge
+	db POISON   ; soulbadge
+	db PSYCHIC  ; marshbadge
+	db FIRE     ; volcanobadge
+	db GROUND   ; earthbadge
+	db $ff
+; fbe91