ref: b3364f9f8819a87f562ca612199aaa0d4da7fcee
dir: /engine/battle/effects.asm/
JumpMoveEffect:
call _JumpMoveEffect
ld b, $1
ret
_JumpMoveEffect:
ldh a, [hWhoseTurn]
and a
ld a, [wPlayerMoveEffect]
jr z, .next1
ld a, [wEnemyMoveEffect]
.next1
dec a ; subtract 1, there is no special effect for 00
add a ; x2, 16bit pointers
ld hl, MoveEffectPointerTable
ld b, 0
ld c, a
add hl, bc
ld a, [hli]
ld h, [hl]
ld l, a
jp hl ; jump to special effect handler
INCLUDE "data/moves/effects_pointers.asm"
SleepEffect:
ld de, wEnemyMonStatus
ld bc, wEnemyBattleStatus2
ldh a, [hWhoseTurn]
and a
jp z, .sleepEffect
ld de, wBattleMonStatus
ld bc, wPlayerBattleStatus2
.sleepEffect
ld a, [bc]
bit NEEDS_TO_RECHARGE, a ; does the target need to recharge? (hyper beam)
res NEEDS_TO_RECHARGE, a ; target no longer needs to recharge
ld [bc], a
jr nz, .setSleepCounter ; if the target had to recharge, all hit tests will be skipped
; including the event where the target already has another status
ld a, [de]
ld b, a
and $7
jr z, .notAlreadySleeping ; can't affect a mon that is already asleep
ld hl, AlreadyAsleepText
jp PrintText
.notAlreadySleeping
ld a, b
and a
jr nz, .didntAffect ; can't affect a mon that is already statused
push de
call MoveHitTest ; apply accuracy tests
pop de
ld a, [wMoveMissed]
and a
jr nz, .didntAffect
.setSleepCounter
; set target's sleep counter to a random number between 1 and 7
call BattleRandom
and $7
jr z, .setSleepCounter
ld [de], a
call PlayCurrentMoveAnimation2
ld hl, FellAsleepText
jp PrintText
.didntAffect
jp PrintDidntAffectText
FellAsleepText:
text_far _FellAsleepText
text_end
AlreadyAsleepText:
text_far _AlreadyAsleepText
text_end
PoisonEffect:
ld hl, wEnemyMonStatus
ld de, wPlayerMoveEffect
ldh a, [hWhoseTurn]
and a
jr z, .poisonEffect
ld hl, wBattleMonStatus
ld de, wEnemyMoveEffect
.poisonEffect
call CheckTargetSubstitute
jr nz, .noEffect ; can't poison a substitute target
ld a, [hli]
ld b, a
and a
jr nz, .noEffect ; miss if target is already statused
ld a, [hli]
cp POISON ; can't poison a poison-type target
jr z, .noEffect
ld a, [hld]
cp POISON ; can't poison a poison-type target
jr z, .noEffect
ld a, [de]
cp POISON_SIDE_EFFECT1
ld b, $34 ; ~20% chance of poisoning
jr z, .sideEffectTest
cp POISON_SIDE_EFFECT2
ld b, $67 ; ~40% chance of poisoning
jr z, .sideEffectTest
push hl
push de
call MoveHitTest ; apply accuracy tests
pop de
pop hl
ld a, [wMoveMissed]
and a
jr nz, .didntAffect
jr .inflictPoison
.sideEffectTest
call BattleRandom
cp b ; was side effect successful?
ret nc
.inflictPoison
dec hl
set 3, [hl] ; mon is now poisoned
push de
dec de
ldh a, [hWhoseTurn]
and a
ld b, ANIM_C7
ld hl, wPlayerBattleStatus3
ld a, [de]
ld de, wPlayerToxicCounter
jr nz, .ok
ld b, ANIM_A9
ld hl, wEnemyBattleStatus3
ld de, wEnemyToxicCounter
.ok
cp TOXIC
jr nz, .normalPoison ; done if move is not Toxic
set BADLY_POISONED, [hl] ; else set Toxic battstatus
xor a
ld [de], a
ld hl, BadlyPoisonedText
jr .continue
.normalPoison
ld hl, PoisonedText
.continue
pop de
ld a, [de]
cp POISON_EFFECT
jr z, .regularPoisonEffect
ld a, b
call PlayBattleAnimation2
jp PrintText
.regularPoisonEffect
call PlayCurrentMoveAnimation2
jp PrintText
.noEffect
ld a, [de]
cp POISON_EFFECT
ret nz
.didntAffect
ld c, 50
call DelayFrames
jp PrintDidntAffectText
PoisonedText:
text_far _PoisonedText
text_end
BadlyPoisonedText:
text_far _BadlyPoisonedText
text_end
DrainHPEffect:
jpfar DrainHPEffect_
ExplodeEffect:
ld hl, wBattleMonHP
ld de, wPlayerBattleStatus2
ldh a, [hWhoseTurn]
and a
jr z, .faintUser
ld hl, wEnemyMonHP
ld de, wEnemyBattleStatus2
.faintUser
xor a
ld [hli], a ; set the mon's HP to 0
ld [hli], a
inc hl
ld [hl], a ; set mon's status to 0
ld a, [de]
res SEEDED, a ; clear mon's leech seed status
ld [de], a
ret
FreezeBurnParalyzeEffect:
xor a
ld [wAnimationType], a
call CheckTargetSubstitute ; test bit 4 of d063/d068 flags [target has substitute flag]
ret nz ; return if they have a substitute, can't effect them
ldh a, [hWhoseTurn]
and a
jp nz, .opponentAttacker
ld a, [wEnemyMonStatus]
and a
jp nz, CheckDefrost ; can't inflict status if opponent is already statused
ld a, [wPlayerMoveType]
ld b, a
ld a, [wEnemyMonType1]
cp b ; do target type 1 and move type match?
ret z ; return if they match (an ice move can't freeze an ice-type, body slam can't paralyze a normal-type, etc.)
ld a, [wEnemyMonType2]
cp b ; do target type 2 and move type match?
ret z ; return if they match
ld a, [wPlayerMoveEffect]
cp PARALYZE_SIDE_EFFECT1 + 1
ld b, 10 percent + 1
jr c, .regular_effectiveness
; extra effectiveness
ld b, 30 percent + 1
sub BURN_SIDE_EFFECT2 - BURN_SIDE_EFFECT1 ; treat extra effective as regular from now on
.regular_effectiveness
push af
call BattleRandom ; get random 8bit value for probability test
cp b
pop bc
ret nc ; do nothing if random value is >= 1A or 4D [no status applied]
ld a, b ; what type of effect is this?
cp BURN_SIDE_EFFECT1
jr z, .burn1
cp FREEZE_SIDE_EFFECT
jr z, .freeze1
; .paralyze1
ld a, 1 << PAR
ld [wEnemyMonStatus], a
call QuarterSpeedDueToParalysis ; quarter speed of affected mon
ld a, ANIM_A9
call PlayBattleAnimation
jp PrintMayNotAttackText ; print paralysis text
.burn1
ld a, 1 << BRN
ld [wEnemyMonStatus], a
call HalveAttackDueToBurn ; halve attack of affected mon
ld a, ANIM_A9
call PlayBattleAnimation
ld hl, BurnedText
jp PrintText
.freeze1
call ClearHyperBeam ; resets hyper beam (recharge) condition from target
ld a, 1 << FRZ
ld [wEnemyMonStatus], a
ld a, ANIM_A9
call PlayBattleAnimation
ld hl, FrozenText
jp PrintText
.opponentAttacker
ld a, [wBattleMonStatus] ; mostly same as above with addresses swapped for opponent
and a
jp nz, CheckDefrost
ld a, [wEnemyMoveType]
ld b, a
ld a, [wBattleMonType1]
cp b
ret z
ld a, [wBattleMonType2]
cp b
ret z
ld a, [wEnemyMoveEffect]
cp PARALYZE_SIDE_EFFECT1 + 1
ld b, 10 percent + 1
jr c, .regular_effectiveness2
; extra effectiveness
ld b, 30 percent + 1
sub BURN_SIDE_EFFECT2 - BURN_SIDE_EFFECT1 ; treat extra effective as regular from now on
.regular_effectiveness2
push af
call BattleRandom
cp b
pop bc
ret nc
ld a, b
cp BURN_SIDE_EFFECT1
jr z, .burn2
cp FREEZE_SIDE_EFFECT
jr z, .freeze2
; .paralyze2
ld a, 1 << PAR
ld [wBattleMonStatus], a
call QuarterSpeedDueToParalysis
jp PrintMayNotAttackText
.burn2
ld a, 1 << BRN
ld [wBattleMonStatus], a
call HalveAttackDueToBurn
ld hl, BurnedText
jp PrintText
.freeze2
; hyper beam bits aren't reseted for opponent's side
ld a, 1 << FRZ
ld [wBattleMonStatus], a
ld hl, FrozenText
jp PrintText
BurnedText:
text_far _BurnedText
text_end
FrozenText:
text_far _FrozenText
text_end
CheckDefrost:
; any fire-type move that has a chance inflict burn (all but Fire Spin) will defrost a frozen target
and 1 << FRZ ; are they frozen?
ret z ; return if so
ldh a, [hWhoseTurn]
and a
jr nz, .opponent
;player [attacker]
ld a, [wPlayerMoveType]
sub FIRE
ret nz ; return if type of move used isn't fire
ld [wEnemyMonStatus], a ; set opponent status to 00 ["defrost" a frozen monster]
ld hl, wEnemyMon1Status
ld a, [wEnemyMonPartyPos]
ld bc, wEnemyMon2 - wEnemyMon1
call AddNTimes
xor a
ld [hl], a ; clear status in roster
ld hl, FireDefrostedText
jr .common
.opponent
ld a, [wEnemyMoveType] ; same as above with addresses swapped
sub FIRE
ret nz
ld [wBattleMonStatus], a
ld hl, wPartyMon1Status
ld a, [wPlayerMonNumber]
ld bc, wPartyMon2 - wPartyMon1
call AddNTimes
xor a
ld [hl], a
ld hl, FireDefrostedText
.common
jp PrintText
FireDefrostedText:
text_far _FireDefrostedText
text_end
StatModifierUpEffect:
ld hl, wPlayerMonStatMods
ld de, wPlayerMoveEffect
ldh a, [hWhoseTurn]
and a
jr z, .statModifierUpEffect
ld hl, wEnemyMonStatMods
ld de, wEnemyMoveEffect
.statModifierUpEffect
ld a, [de]
sub ATTACK_UP1_EFFECT
cp EVASION_UP1_EFFECT + $3 - ATTACK_UP1_EFFECT ; covers all +1 effects
jr c, .incrementStatMod
sub ATTACK_UP2_EFFECT - ATTACK_UP1_EFFECT ; map +2 effects to equivalent +1 effect
.incrementStatMod
ld c, a
ld b, $0
add hl, bc
ld b, [hl]
inc b ; increment corresponding stat mod
ld a, $d
cp b ; can't raise stat past +6 ($d or 13)
jp c, PrintNothingHappenedText
ld a, [de]
cp ATTACK_UP1_EFFECT + $8 ; is it a +2 effect?
jr c, .ok
inc b ; if so, increment stat mod again
ld a, $d
cp b ; unless it's already +6
jr nc, .ok
ld b, a
.ok
ld [hl], b
ld a, c
cp $4
jr nc, UpdateStatDone ; jump if mod affected is evasion/accuracy
push hl
ld hl, wBattleMonAttack + 1
ld de, wPlayerMonUnmodifiedAttack
ldh a, [hWhoseTurn]
and a
jr z, .pointToStats
ld hl, wEnemyMonAttack + 1
ld de, wEnemyMonUnmodifiedAttack
.pointToStats
push bc
sla c
ld b, $0
add hl, bc ; hl = modified stat
ld a, c
add e
ld e, a
jr nc, .checkIf999
inc d ; de = unmodified (original) stat
.checkIf999
pop bc
; check if stat is already 999
ld a, [hld]
sub LOW(MAX_STAT_VALUE)
jr nz, .recalculateStat
ld a, [hl]
sbc HIGH(MAX_STAT_VALUE)
jp z, RestoreOriginalStatModifier
.recalculateStat ; recalculate affected stat
; paralysis and burn penalties, as well as badge boosts are ignored
push hl
push bc
ld hl, StatModifierRatios
dec b
sla b
ld c, b
ld b, $0
add hl, bc
pop bc
xor a
ldh [hMultiplicand], a
ld a, [de]
ldh [hMultiplicand + 1], a
inc de
ld a, [de]
ldh [hMultiplicand + 2], a
ld a, [hli]
ldh [hMultiplier], a
call Multiply
ld a, [hl]
ldh [hDivisor], a
ld b, $4
call Divide
pop hl
; cap at MAX_STAT_VALUE (999)
ldh a, [hProduct + 3]
sub LOW(MAX_STAT_VALUE)
ldh a, [hProduct + 2]
sbc HIGH(MAX_STAT_VALUE)
jp c, UpdateStat
ld a, HIGH(MAX_STAT_VALUE)
ldh [hMultiplicand + 1], a
ld a, LOW(MAX_STAT_VALUE)
ldh [hMultiplicand + 2], a
UpdateStat:
ldh a, [hProduct + 2]
ld [hli], a
ldh a, [hProduct + 3]
ld [hl], a
pop hl
UpdateStatDone:
ld b, c
inc b
call PrintStatText
ld hl, wPlayerBattleStatus2
ld de, wPlayerMoveNum
ld bc, wPlayerMonMinimized
ldh a, [hWhoseTurn]
and a
jr z, .playerTurn
ld hl, wEnemyBattleStatus2
ld de, wEnemyMoveNum
ld bc, wEnemyMonMinimized
.playerTurn
ld a, [de]
cp MINIMIZE
jr nz, .notMinimize
; if a substitute is up, slide off the substitute and show the mon pic before
; playing the minimize animation
bit HAS_SUBSTITUTE_UP, [hl]
push af
push bc
ld hl, HideSubstituteShowMonAnim
ld b, BANK(HideSubstituteShowMonAnim)
push de
call nz, Bankswitch
pop de
.notMinimize
call PlayCurrentMoveAnimation
ld a, [de]
cp MINIMIZE
jr nz, .applyBadgeBoostsAndStatusPenalties
pop bc
ld a, $1
ld [bc], a
ld hl, ReshowSubstituteAnim
ld b, BANK(ReshowSubstituteAnim)
pop af
call nz, Bankswitch
.applyBadgeBoostsAndStatusPenalties
ldh a, [hWhoseTurn]
and a
call z, ApplyBadgeStatBoosts ; whenever the player uses a stat-up move, badge boosts get reapplied again to every stat,
; even to those not affected by the stat-up move (will be boosted further)
ld hl, MonsStatsRoseText
call PrintText
; these shouldn't be here
call QuarterSpeedDueToParalysis ; apply speed penalty to the player whose turn is not, if it's paralyzed
jp HalveAttackDueToBurn ; apply attack penalty to the player whose turn is not, if it's burned
RestoreOriginalStatModifier:
pop hl
dec [hl]
PrintNothingHappenedText:
ld hl, NothingHappenedText
jp PrintText
MonsStatsRoseText:
text_far _MonsStatsRoseText
text_asm
ld hl, GreatlyRoseText
ldh a, [hWhoseTurn]
and a
ld a, [wPlayerMoveEffect]
jr z, .playerTurn
ld a, [wEnemyMoveEffect]
.playerTurn
cp ATTACK_DOWN1_EFFECT
ret nc
ld hl, RoseText
ret
GreatlyRoseText:
text_pause
text_far _GreatlyRoseText
; fallthrough
RoseText:
text_far _RoseText
text_end
StatModifierDownEffect:
ld hl, wEnemyMonStatMods
ld de, wPlayerMoveEffect
ld bc, wEnemyBattleStatus1
ldh a, [hWhoseTurn]
and a
jr z, .statModifierDownEffect
ld hl, wPlayerMonStatMods
ld de, wEnemyMoveEffect
ld bc, wPlayerBattleStatus1
ld a, [wLinkState]
cp LINK_STATE_BATTLING
jr z, .statModifierDownEffect
call BattleRandom
cp $40 ; 1/4 chance to miss by in regular battle
jp c, MoveMissed
.statModifierDownEffect
call CheckTargetSubstitute ; can't hit through substitute
jp nz, MoveMissed
ld a, [de]
cp ATTACK_DOWN_SIDE_EFFECT
jr c, .nonSideEffect
call BattleRandom
cp $55 ; 85/256 chance for side effects
jp nc, CantLowerAnymore
ld a, [de]
sub ATTACK_DOWN_SIDE_EFFECT ; map each stat to 0-3
jr .decrementStatMod
.nonSideEffect ; non-side effects only
push hl
push de
push bc
call MoveHitTest ; apply accuracy tests
pop bc
pop de
pop hl
ld a, [wMoveMissed]
and a
jp nz, MoveMissed
ld a, [bc]
bit INVULNERABLE, a ; fly/dig
jp nz, MoveMissed
ld a, [de]
sub ATTACK_DOWN1_EFFECT
cp EVASION_DOWN1_EFFECT + $3 - ATTACK_DOWN1_EFFECT ; covers all -1 effects
jr c, .decrementStatMod
sub ATTACK_DOWN2_EFFECT - ATTACK_DOWN1_EFFECT ; map -2 effects to corresponding -1 effect
.decrementStatMod
ld c, a
ld b, $0
add hl, bc
ld b, [hl]
dec b ; dec corresponding stat mod
jp z, CantLowerAnymore ; if stat mod is 1 (-6), can't lower anymore
ld a, [de]
cp ATTACK_DOWN2_EFFECT - $16 ; $24
jr c, .ok
cp EVASION_DOWN2_EFFECT + $5 ; $44
jr nc, .ok
dec b ; stat down 2 effects only (dec mod again)
jr nz, .ok
inc b ; increment mod to 1 (-6) if it would become 0 (-7)
.ok
ld [hl], b ; save modified mod
ld a, c
cp $4
jr nc, UpdateLoweredStatDone ; jump for evasion/accuracy
push hl
push de
ld hl, wEnemyMonAttack + 1
ld de, wEnemyMonUnmodifiedAttack
ldh a, [hWhoseTurn]
and a
jr z, .pointToStat
ld hl, wBattleMonAttack + 1
ld de, wPlayerMonUnmodifiedAttack
.pointToStat
push bc
sla c
ld b, $0
add hl, bc ; hl = modified stat
ld a, c
add e
ld e, a
jr nc, .noCarry
inc d ; de = unmodified stat
.noCarry
pop bc
ld a, [hld]
sub $1 ; can't lower stat below 1 (-6)
jr nz, .recalculateStat
ld a, [hl]
and a
jp z, CantLowerAnymore_Pop
.recalculateStat
; recalculate affected stat
; paralysis and burn penalties, as well as badge boosts are ignored
push hl
push bc
ld hl, StatModifierRatios
dec b
sla b
ld c, b
ld b, $0
add hl, bc
pop bc
xor a
ldh [hMultiplicand], a
ld a, [de]
ldh [hMultiplicand + 1], a
inc de
ld a, [de]
ldh [hMultiplicand + 2], a
ld a, [hli]
ldh [hMultiplier], a
call Multiply
ld a, [hl]
ldh [hDivisor], a
ld b, $4
call Divide
pop hl
ldh a, [hProduct + 3]
ld b, a
ldh a, [hProduct + 2]
or b
jp nz, UpdateLoweredStat
ldh [hMultiplicand + 1], a
ld a, $1
ldh [hMultiplicand + 2], a
UpdateLoweredStat:
ldh a, [hProduct + 2]
ld [hli], a
ldh a, [hProduct + 3]
ld [hl], a
pop de
pop hl
UpdateLoweredStatDone:
ld b, c
inc b
push de
call PrintStatText
pop de
ld a, [de]
cp $44
jr nc, .ApplyBadgeBoostsAndStatusPenalties
call PlayCurrentMoveAnimation2
.ApplyBadgeBoostsAndStatusPenalties
ldh a, [hWhoseTurn]
and a
call nz, ApplyBadgeStatBoosts ; whenever the player uses a stat-down move, badge boosts get reapplied again to every stat,
; even to those not affected by the stat-up move (will be boosted further)
ld hl, MonsStatsFellText
call PrintText
; These where probably added given that a stat-down move affecting speed or attack will override
; the stat penalties from paralysis and burn respectively.
; But they are always called regardless of the stat affected by the stat-down move.
call QuarterSpeedDueToParalysis
jp HalveAttackDueToBurn
CantLowerAnymore_Pop:
pop de
pop hl
inc [hl]
CantLowerAnymore:
ld a, [de]
cp ATTACK_DOWN_SIDE_EFFECT
ret nc
ld hl, NothingHappenedText
jp PrintText
MoveMissed:
ld a, [de]
cp $44
ret nc
jp ConditionalPrintButItFailed
MonsStatsFellText:
text_far _MonsStatsFellText
text_asm
ld hl, FellText
ldh a, [hWhoseTurn]
and a
ld a, [wPlayerMoveEffect]
jr z, .playerTurn
ld a, [wEnemyMoveEffect]
.playerTurn
; check if the move's effect decreases a stat by 2
cp BIDE_EFFECT
ret c
cp ATTACK_DOWN_SIDE_EFFECT
ret nc
ld hl, GreatlyFellText
ret
GreatlyFellText:
text_pause
text_far _GreatlyFellText
; fallthrough
FellText:
text_far _FellText
text_end
PrintStatText:
ld hl, StatModTextStrings
ld c, "@"
.findStatName_outer
dec b
jr z, .foundStatName
.findStatName_inner
ld a, [hli]
cp c
jr z, .findStatName_outer
jr .findStatName_inner
.foundStatName
ld de, wcf4b
ld bc, $a
jp CopyData
INCLUDE "data/battle/stat_mod_names.asm"
INCLUDE "data/battle/stat_modifiers.asm"
BideEffect:
ld hl, wPlayerBattleStatus1
ld de, wPlayerBideAccumulatedDamage
ld bc, wPlayerNumAttacksLeft
ldh a, [hWhoseTurn]
and a
jr z, .bideEffect
ld hl, wEnemyBattleStatus1
ld de, wEnemyBideAccumulatedDamage
ld bc, wEnemyNumAttacksLeft
.bideEffect
set STORING_ENERGY, [hl] ; mon is now using bide
xor a
ld [de], a
inc de
ld [de], a
ld [wPlayerMoveEffect], a
ld [wEnemyMoveEffect], a
call BattleRandom
and $1
inc a
inc a
ld [bc], a ; set Bide counter to 2 or 3 at random
ldh a, [hWhoseTurn]
add XSTATITEM_ANIM
jp PlayBattleAnimation2
ThrashPetalDanceEffect:
ld hl, wPlayerBattleStatus1
ld de, wPlayerNumAttacksLeft
ldh a, [hWhoseTurn]
and a
jr z, .thrashPetalDanceEffect
ld hl, wEnemyBattleStatus1
ld de, wEnemyNumAttacksLeft
.thrashPetalDanceEffect
set THRASHING_ABOUT, [hl] ; mon is now using thrash/petal dance
call BattleRandom
and $1
inc a
inc a
ld [de], a ; set thrash/petal dance counter to 2 or 3 at random
ldh a, [hWhoseTurn]
add ANIM_B0
jp PlayBattleAnimation2
SwitchAndTeleportEffect:
ldh a, [hWhoseTurn]
and a
jr nz, .handleEnemy
ld a, [wIsInBattle]
dec a
jr nz, .notWildBattle1
ld a, [wCurEnemyLVL]
ld b, a
ld a, [wBattleMonLevel]
cp b ; is the player's level greater than the enemy's level?
jr nc, .playerMoveWasSuccessful ; if so, teleport will always succeed
add b
ld c, a
inc c ; c = sum of player level and enemy level
.rejectionSampleLoop1
call BattleRandom
cp c ; get a random number between 0 and c
jr nc, .rejectionSampleLoop1
srl b
srl b ; b = enemyLevel / 4
cp b ; is rand[0, playerLevel + enemyLevel) >= (enemyLevel / 4)?
jr nc, .playerMoveWasSuccessful ; if so, allow teleporting
ld c, 50
call DelayFrames
ld a, [wPlayerMoveNum]
cp TELEPORT
jp nz, PrintDidntAffectText
jp PrintButItFailedText_
.playerMoveWasSuccessful
call ReadPlayerMonCurHPAndStatus
xor a
ld [wAnimationType], a
inc a
ld [wEscapedFromBattle], a
ld a, [wPlayerMoveNum]
jr .playAnimAndPrintText
.notWildBattle1
ld c, 50
call DelayFrames
ld hl, IsUnaffectedText
ld a, [wPlayerMoveNum]
cp TELEPORT
jp nz, PrintText
jp PrintButItFailedText_
.handleEnemy
ld a, [wIsInBattle]
dec a
jr nz, .notWildBattle2
ld a, [wBattleMonLevel]
ld b, a
ld a, [wCurEnemyLVL]
cp b
jr nc, .enemyMoveWasSuccessful
add b
ld c, a
inc c
.rejectionSampleLoop2
call BattleRandom
cp c
jr nc, .rejectionSampleLoop2
srl b
srl b
cp b
jr nc, .enemyMoveWasSuccessful
ld c, 50
call DelayFrames
ld a, [wEnemyMoveNum]
cp TELEPORT
jp nz, PrintDidntAffectText
jp PrintButItFailedText_
.enemyMoveWasSuccessful
call ReadPlayerMonCurHPAndStatus
xor a
ld [wAnimationType], a
inc a
ld [wEscapedFromBattle], a
ld a, [wEnemyMoveNum]
jr .playAnimAndPrintText
.notWildBattle2
ld c, 50
call DelayFrames
ld hl, IsUnaffectedText
ld a, [wEnemyMoveNum]
cp TELEPORT
jp nz, PrintText
jp ConditionalPrintButItFailed
.playAnimAndPrintText
push af
call PlayBattleAnimation
ld c, 20
call DelayFrames
pop af
ld hl, RanFromBattleText
cp TELEPORT
jr z, .printText
ld hl, RanAwayScaredText
cp ROAR
jr z, .printText
ld hl, WasBlownAwayText
.printText
jp PrintText
RanFromBattleText:
text_far _RanFromBattleText
text_end
RanAwayScaredText:
text_far _RanAwayScaredText
text_end
WasBlownAwayText:
text_far _WasBlownAwayText
text_end
TwoToFiveAttacksEffect:
ld hl, wPlayerBattleStatus1
ld de, wPlayerNumAttacksLeft
ld bc, wPlayerNumHits
ldh a, [hWhoseTurn]
and a
jr z, .twoToFiveAttacksEffect
ld hl, wEnemyBattleStatus1
ld de, wEnemyNumAttacksLeft
ld bc, wEnemyNumHits
.twoToFiveAttacksEffect
bit ATTACKING_MULTIPLE_TIMES, [hl] ; is mon attacking multiple times?
ret nz
set ATTACKING_MULTIPLE_TIMES, [hl] ; mon is now attacking multiple times
ld hl, wPlayerMoveEffect
ldh a, [hWhoseTurn]
and a
jr z, .setNumberOfHits
ld hl, wEnemyMoveEffect
.setNumberOfHits
ld a, [hl]
cp TWINEEDLE_EFFECT
jr z, .twineedle
cp ATTACK_TWICE_EFFECT
ld a, $2 ; number of hits it's always 2 for ATTACK_TWICE_EFFECT
jr z, .saveNumberOfHits
; for TWO_TO_FIVE_ATTACKS_EFFECT 3/8 chance for 2 and 3 hits, and 1/8 chance for 4 and 5 hits
call BattleRandom
and $3
cp $2
jr c, .gotNumHits
; if the number of hits was greater than 2, re-roll again for a lower chance
call BattleRandom
and $3
.gotNumHits
inc a
inc a
.saveNumberOfHits
ld [de], a
ld [bc], a
ret
.twineedle
ld a, POISON_SIDE_EFFECT1
ld [hl], a ; set Twineedle's effect to poison effect
jr .saveNumberOfHits
FlinchSideEffect:
call CheckTargetSubstitute
ret nz
ld hl, wEnemyBattleStatus1
ld de, wPlayerMoveEffect
ldh a, [hWhoseTurn]
and a
jr z, .flinchSideEffect
ld hl, wPlayerBattleStatus1
ld de, wEnemyMoveEffect
.flinchSideEffect
ld a, [de]
cp FLINCH_SIDE_EFFECT1
ld b, $1a ; ~10% chance of flinch
jr z, .gotEffectChance
ld b, $4d ; ~30% chance of flinch
.gotEffectChance
call BattleRandom
cp b
ret nc
set FLINCHED, [hl] ; set mon's status to flinching
call ClearHyperBeam
ret
OneHitKOEffect:
jpfar OneHitKOEffect_
ChargeEffect:
ld hl, wPlayerBattleStatus1
ld de, wPlayerMoveEffect
ldh a, [hWhoseTurn]
and a
ld b, XSTATITEM_ANIM
jr z, .chargeEffect
ld hl, wEnemyBattleStatus1
ld de, wEnemyMoveEffect
ld b, ANIM_AF
.chargeEffect
set CHARGING_UP, [hl]
ld a, [de]
dec de ; de contains enemy or player MOVENUM
cp FLY_EFFECT
jr nz, .notFly
set INVULNERABLE, [hl] ; mon is now invulnerable to typical attacks (fly/dig)
ld b, TELEPORT ; load Teleport's animation
.notFly
ld a, [de]
cp DIG
jr nz, .notDigOrFly
set INVULNERABLE, [hl] ; mon is now invulnerable to typical attacks (fly/dig)
ld b, ANIM_C0
.notDigOrFly
xor a
ld [wAnimationType], a
ld a, b
call PlayBattleAnimation
ld a, [de]
ld [wChargeMoveNum], a
ld hl, ChargeMoveEffectText
jp PrintText
ChargeMoveEffectText:
text_far _ChargeMoveEffectText
text_asm
ld a, [wChargeMoveNum]
cp RAZOR_WIND
ld hl, MadeWhirlwindText
jr z, .gotText
cp SOLARBEAM
ld hl, TookInSunlightText
jr z, .gotText
cp SKULL_BASH
ld hl, LoweredItsHeadText
jr z, .gotText
cp SKY_ATTACK
ld hl, SkyAttackGlowingText
jr z, .gotText
cp FLY
ld hl, FlewUpHighText
jr z, .gotText
cp DIG
ld hl, DugAHoleText
.gotText
ret
MadeWhirlwindText:
text_far _MadeWhirlwindText
text_end
TookInSunlightText:
text_far _TookInSunlightText
text_end
LoweredItsHeadText:
text_far _LoweredItsHeadText
text_end
SkyAttackGlowingText:
text_far _SkyAttackGlowingText
text_end
FlewUpHighText:
text_far _FlewUpHighText
text_end
DugAHoleText:
text_far _DugAHoleText
text_end
TrappingEffect:
ld hl, wPlayerBattleStatus1
ld de, wPlayerNumAttacksLeft
ldh a, [hWhoseTurn]
and a
jr z, .trappingEffect
ld hl, wEnemyBattleStatus1
ld de, wEnemyNumAttacksLeft
.trappingEffect
bit USING_TRAPPING_MOVE, [hl]
ret nz
call ClearHyperBeam ; since this effect is called before testing whether the move will hit,
; the target won't need to recharge even if the trapping move missed
set USING_TRAPPING_MOVE, [hl] ; mon is now using a trapping move
call BattleRandom ; 3/8 chance for 2 and 3 attacks, and 1/8 chance for 4 and 5 attacks
and $3
cp $2
jr c, .setTrappingCounter
call BattleRandom
and $3
.setTrappingCounter
inc a
ld [de], a
ret
MistEffect:
jpfar MistEffect_
FocusEnergyEffect:
jpfar FocusEnergyEffect_
RecoilEffect:
jpfar RecoilEffect_
ConfusionSideEffect:
call BattleRandom
cp $19 ; ~10% chance
ret nc
jr ConfusionSideEffectSuccess
ConfusionEffect:
call CheckTargetSubstitute
jr nz, ConfusionEffectFailed
call MoveHitTest
ld a, [wMoveMissed]
and a
jr nz, ConfusionEffectFailed
ConfusionSideEffectSuccess:
ldh a, [hWhoseTurn]
and a
ld hl, wEnemyBattleStatus1
ld bc, wEnemyConfusedCounter
ld a, [wPlayerMoveEffect]
jr z, .confuseTarget
ld hl, wPlayerBattleStatus1
ld bc, wPlayerConfusedCounter
ld a, [wEnemyMoveEffect]
.confuseTarget
bit CONFUSED, [hl] ; is mon confused?
jr nz, ConfusionEffectFailed
set CONFUSED, [hl] ; mon is now confused
push af
call BattleRandom
and $3
inc a
inc a
ld [bc], a ; confusion status will last 2-5 turns
pop af
cp CONFUSION_SIDE_EFFECT
call nz, PlayCurrentMoveAnimation2
ld hl, BecameConfusedText
jp PrintText
BecameConfusedText:
text_far _BecameConfusedText
text_end
ConfusionEffectFailed:
cp CONFUSION_SIDE_EFFECT
ret z
ld c, 50
call DelayFrames
jp ConditionalPrintButItFailed
ParalyzeEffect:
jpfar ParalyzeEffect_
SubstituteEffect:
jpfar SubstituteEffect_
HyperBeamEffect:
ld hl, wPlayerBattleStatus2
ldh a, [hWhoseTurn]
and a
jr z, .hyperBeamEffect
ld hl, wEnemyBattleStatus2
.hyperBeamEffect
set NEEDS_TO_RECHARGE, [hl] ; mon now needs to recharge
ret
ClearHyperBeam:
push hl
ld hl, wEnemyBattleStatus2
ldh a, [hWhoseTurn]
and a
jr z, .playerTurn
ld hl, wPlayerBattleStatus2
.playerTurn
res NEEDS_TO_RECHARGE, [hl] ; mon no longer needs to recharge
pop hl
ret
RageEffect:
ld hl, wPlayerBattleStatus2
ldh a, [hWhoseTurn]
and a
jr z, .player
ld hl, wEnemyBattleStatus2
.player
set USING_RAGE, [hl] ; mon is now in "rage" mode
ret
MimicEffect:
ld c, 50
call DelayFrames
call MoveHitTest
ld a, [wMoveMissed]
and a
jr nz, .mimicMissed
ldh a, [hWhoseTurn]
and a
ld hl, wBattleMonMoves
ld a, [wPlayerBattleStatus1]
jr nz, .enemyTurn
ld a, [wLinkState]
cp LINK_STATE_BATTLING
jr nz, .letPlayerChooseMove
ld hl, wEnemyMonMoves
ld a, [wEnemyBattleStatus1]
.enemyTurn
bit INVULNERABLE, a
jr nz, .mimicMissed
.getRandomMove
push hl
call BattleRandom
and $3
ld c, a
ld b, $0
add hl, bc
ld a, [hl]
pop hl
and a
jr z, .getRandomMove
ld d, a
ldh a, [hWhoseTurn]
and a
ld hl, wBattleMonMoves
ld a, [wPlayerMoveListIndex]
jr z, .playerTurn
ld hl, wEnemyMonMoves
ld a, [wEnemyMoveListIndex]
jr .playerTurn
.letPlayerChooseMove
ld a, [wEnemyBattleStatus1]
bit INVULNERABLE, a
jr nz, .mimicMissed
ld a, [wCurrentMenuItem]
push af
ld a, $1
ld [wMoveMenuType], a
call MoveSelectionMenu
call LoadScreenTilesFromBuffer1
ld hl, wEnemyMonMoves
ld a, [wCurrentMenuItem]
ld c, a
ld b, $0
add hl, bc
ld d, [hl]
pop af
ld hl, wBattleMonMoves
.playerTurn
ld c, a
ld b, $0
add hl, bc
ld a, d
ld [hl], a
ld [wd11e], a
call GetMoveName
call PlayCurrentMoveAnimation
ld hl, MimicLearnedMoveText
jp PrintText
.mimicMissed
jp PrintButItFailedText_
MimicLearnedMoveText:
text_far _MimicLearnedMoveText
text_end
LeechSeedEffect:
jpfar LeechSeedEffect_
SplashEffect:
call PlayCurrentMoveAnimation
jp PrintNoEffectText
DisableEffect:
call MoveHitTest
ld a, [wMoveMissed]
and a
jr nz, .moveMissed
ld de, wEnemyDisabledMove
ld hl, wEnemyMonMoves
ldh a, [hWhoseTurn]
and a
jr z, .disableEffect
ld de, wPlayerDisabledMove
ld hl, wBattleMonMoves
.disableEffect
; no effect if target already has a move disabled
ld a, [de]
and a
jr nz, .moveMissed
.pickMoveToDisable
push hl
call BattleRandom
and $3
ld c, a
ld b, $0
add hl, bc
ld a, [hl]
pop hl
and a
jr z, .pickMoveToDisable ; loop until a non-00 move slot is found
ld [wd11e], a ; store move number
push hl
ldh a, [hWhoseTurn]
and a
ld hl, wBattleMonPP
jr nz, .enemyTurn
ld a, [wLinkState]
cp LINK_STATE_BATTLING
pop hl ; wEnemyMonMoves
jr nz, .playerTurnNotLinkBattle
; .playerTurnLinkBattle
push hl
ld hl, wEnemyMonPP
.enemyTurn
push hl
ld a, [hli]
or [hl]
inc hl
or [hl]
inc hl
or [hl]
and $3f
pop hl ; wBattleMonPP or wEnemyMonPP
jr z, .moveMissedPopHL ; nothing to do if all moves have no PP left
add hl, bc
ld a, [hl]
pop hl
and a
jr z, .pickMoveToDisable ; pick another move if this one had 0 PP
.playerTurnNotLinkBattle
; non-link battle enemies have unlimited PP so the previous checks aren't needed
call BattleRandom
and $7
inc a ; 1-8 turns disabled
inc c ; move 1-4 will be disabled
swap c
add c ; map disabled move to high nibble of wEnemyDisabledMove / wPlayerDisabledMove
ld [de], a
call PlayCurrentMoveAnimation2
ld hl, wPlayerDisabledMoveNumber
ldh a, [hWhoseTurn]
and a
jr nz, .printDisableText
inc hl ; wEnemyDisabledMoveNumber
.printDisableText
ld a, [wd11e] ; move number
ld [hl], a
call GetMoveName
ld hl, MoveWasDisabledText
jp PrintText
.moveMissedPopHL
pop hl
.moveMissed
jp PrintButItFailedText_
MoveWasDisabledText:
text_far _MoveWasDisabledText
text_end
PayDayEffect:
jpfar PayDayEffect_
ConversionEffect:
jpfar ConversionEffect_
HazeEffect:
jpfar HazeEffect_
HealEffect:
jpfar HealEffect_
TransformEffect:
jpfar TransformEffect_
ReflectLightScreenEffect:
jpfar ReflectLightScreenEffect_
NothingHappenedText:
text_far _NothingHappenedText
text_end
PrintNoEffectText:
ld hl, NoEffectText
jp PrintText
NoEffectText:
text_far _NoEffectText
text_end
ConditionalPrintButItFailed:
ld a, [wMoveDidntMiss]
and a
ret nz ; return if the side effect failed, yet the attack was successful
PrintButItFailedText_:
ld hl, ButItFailedText
jp PrintText
ButItFailedText:
text_far _ButItFailedText
text_end
PrintDidntAffectText:
ld hl, DidntAffectText
jp PrintText
DidntAffectText:
text_far _DidntAffectText
text_end
IsUnaffectedText:
text_far _IsUnaffectedText
text_end
PrintMayNotAttackText:
ld hl, ParalyzedMayNotAttackText
jp PrintText
ParalyzedMayNotAttackText:
text_far _ParalyzedMayNotAttackText
text_end
CheckTargetSubstitute:
push hl
ld hl, wEnemyBattleStatus2
ldh a, [hWhoseTurn]
and a
jr z, .next1
ld hl, wPlayerBattleStatus2
.next1
bit HAS_SUBSTITUTE_UP, [hl]
pop hl
ret
PlayCurrentMoveAnimation2:
; animation at MOVENUM will be played unless MOVENUM is 0
; plays wAnimationType 3 or 6
ldh a, [hWhoseTurn]
and a
ld a, [wPlayerMoveNum]
jr z, .notEnemyTurn
ld a, [wEnemyMoveNum]
.notEnemyTurn
and a
ret z
PlayBattleAnimation2:
; play animation ID at a and animation type 6 or 3
ld [wAnimationID], a
ldh a, [hWhoseTurn]
and a
ld a, $6
jr z, .storeAnimationType
ld a, $3
.storeAnimationType
ld [wAnimationType], a
jp PlayBattleAnimationGotID
PlayCurrentMoveAnimation:
; animation at MOVENUM will be played unless MOVENUM is 0
; resets wAnimationType
xor a
ld [wAnimationType], a
ldh a, [hWhoseTurn]
and a
ld a, [wPlayerMoveNum]
jr z, .notEnemyTurn
ld a, [wEnemyMoveNum]
.notEnemyTurn
and a
ret z
PlayBattleAnimation:
; play animation ID at a and predefined animation type
ld [wAnimationID], a
PlayBattleAnimationGotID:
; play animation at wAnimationID
push hl
push de
push bc
predef MoveAnimation
pop bc
pop de
pop hl
ret