summaryrefslogtreecommitdiff
path: root/engine/battle/moveEffects/recoil_effect.asm
blob: 0f2f087b1ae950081a0616c4118abcbf7b5cc334 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
RecoilEffect_:
	ld a, [H_WHOSETURN]
	and a
	ld a, [wPlayerMoveNum]
	ld hl, wBattleMonMaxHP
	jr z, .recoilEffect
	ld a, [wEnemyMoveNum]
	ld hl, wEnemyMonMaxHP
.recoilEffect
	ld d, a
	ld a, [wDamage]
	ld b, a
	ld a, [wDamage + 1]
	ld c, a
	srl b
	rr c
	ld a, d
	cp STRUGGLE ; struggle deals 50% recoil damage
	jr z, .gotRecoilDamage
	srl b
	rr c
.gotRecoilDamage
	ld a, b
	or c
	jr nz, .updateHP
	inc c ; minimum recoil damage is 1
.updateHP
; subtract HP from user due to the recoil damage
	ld a, [hli]
	ld [wHPBarMaxHP+1], a
	ld a, [hl]
	ld [wHPBarMaxHP], a
	push bc
	ld bc, wBattleMonHP - wBattleMonMaxHP
	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, .getHPBarCoords
; if recoil damage is higher than the Pokemon's HP, set its HP to 0
	xor a
	ld [hli], a
	ld [hl], a
	ld hl, wHPBarNewHP
	ld [hli], a
	ld [hl], a
.getHPBarCoords
	coord hl, 10, 9
	ld a, [H_WHOSETURN]
	and a
	ld a, $1
	jr z, .updateHPBar
	coord hl, 2, 2
	xor a
.updateHPBar
	ld [wHPBarType], a
	predef UpdateHPBar2
	ld hl, HitWithRecoilText
	jp PrintText
HitWithRecoilText:
	TX_FAR _HitWithRecoilText
	db "@"