Rename battle files and split move effects Part 1

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

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 "@"