diff options
Diffstat (limited to 'engine/battle/moveEffects/substitute_effect.asm')
| -rw-r--r-- | engine/battle/moveEffects/substitute_effect.asm | 50 |
1 files changed, 26 insertions, 24 deletions
diff --git a/engine/battle/moveEffects/substitute_effect.asm b/engine/battle/moveEffects/substitute_effect.asm index e88def4a..8412e281 100644 --- a/engine/battle/moveEffects/substitute_effect.asm +++ b/engine/battle/moveEffects/substitute_effect.asm @@ -11,46 +11,48 @@ SubstituteEffect_: ; 17dad (5:7dad) ld de, wEnemySubstituteHP ld bc, W_ENEMYBATTSTATUS2 .notEnemy - ld a, [bc] ;load flags - bit HasSubstituteUp, a ;user already has substitute? - jr nz, .alreadyHasSubstitute ;skip this code if so - ;user doesn't have a substitute [yet] + ld a, [bc] + bit HasSubstituteUp, a ; user already has substitute? + jr nz, .alreadyHasSubstitute +; quarter health to remove from user +; assumes max HP is 1023 or lower push bc - ld a, [hli] ;load max hp + ld a, [hli] ld b, [hl] - srl a ;max hp / 4, [quarter health to remove from user] + srl a rr b srl a - rr b + rr b ; max hp / 4 push de ld de, wBattleMonHP - wBattleMonMaxHP - add hl, de ; point hl to current HP + add hl, de ; point hl to current HP low byte pop de - ld a, b - ld [de], a ;save copy of HP to subtract in ccd7/ccd8 [how much HP substitute has] - ld a, [hld] ;load current hp - sub b ;subtract [max hp / 4] - ld d, a ;save low byte result in D + ld a, b + ld [de], a ; save copy of HP to subtract in ccd7/ccd8 [how much HP substitute has] + ld a, [hld] +; subtract [max hp / 4] to current HP + sub b + ld d, a ld a, [hl] - sbc a, 0 ;borrow from high byte if needed + sbc 0 pop bc - jr c, .notEnoughHP ;underflow means user would be left with negative health - ;bug: note since it only brances on carry, it will possibly leave user with 0HP + jr c, .notEnoughHP ; underflow means user would be left with negative health + ; bug: since it only brances on carry, it will possibly leave user with 0 HP .userHasZeroOrMoreHP - ldi [hl], a ;store high byte HP - ld [hl], d ;store low byte HP + ldi [hl], a ; save resulting HP after substraction into current HP + ld [hl], d ld h, b ld l, c - set HasSubstituteUp, [hl] ;set bit 4 of flags, user now has substitute - ld a, [W_OPTIONS] ;load options - bit 7, a ;battle animation is enabled? - ld hl, PlayCurrentMoveAnimation ;animation enabled: 0F:7BA8 + set HasSubstituteUp, [hl] + ld a, [W_OPTIONS] + bit 7, a ; battle animation is enabled? + ld hl, PlayCurrentMoveAnimation ld b, BANK(PlayCurrentMoveAnimation) jr z, .animationEnabled - ld hl, AnimationSubstitute ;animation disabled: 1E:56E0 + ld hl, AnimationSubstitute ld b, BANK(AnimationSubstitute) .animationEnabled - call Bankswitch ;jump to routine depending on animation setting + call Bankswitch ; jump to routine depending on animation setting ld hl, SubstituteText call PrintText ld hl, DrawHUDsAndHPBars |