/
core.asm
7040 lines (6741 loc) · 155 KB
/
core.asm
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BattleCore:
INCLUDE "data/battle/residual_effects_1.asm"
INCLUDE "data/battle/set_damage_effects.asm"
INCLUDE "data/battle/residual_effects_2.asm"
INCLUDE "data/battle/always_happen_effects.asm"
INCLUDE "data/battle/special_effects.asm"
SlidePlayerAndEnemySilhouettesOnScreen:
call LoadPlayerBackPic
ld a, MESSAGE_BOX ; the usual text box at the bottom of the screen
ld [wTextBoxID], a
call DisplayTextBoxID
hlcoord 1, 5
lb bc, 3, 7
call ClearScreenArea
call DisableLCD
call LoadFontTilePatterns
call LoadHudAndHpBarAndStatusTilePatterns
ld hl, vBGMap0
ld bc, $400
.clearBackgroundLoop
ld a, " "
ld [hli], a
dec bc
ld a, b
or c
jr nz, .clearBackgroundLoop
; copy the work RAM tile map to VRAM
hlcoord 0, 0
ld de, vBGMap0
ld b, 18 ; number of rows
.copyRowLoop
ld c, 20 ; number of columns
.copyColumnLoop
ld a, [hli]
ld [de], a
inc e
dec c
jr nz, .copyColumnLoop
ld a, 12 ; number of off screen tiles to the right of screen in VRAM
add e ; skip the off screen tiles
ld e, a
jr nc, .noCarry
inc d
.noCarry
dec b
jr nz, .copyRowLoop
call EnableLCD
ld a, $90
ldh [hWY], a
ldh [rWY], a
xor a
ldh [hTileAnimations], a
ldh [hSCY], a
dec a
ld [wUpdateSpritesEnabled], a
call Delay3
xor a
ldh [hAutoBGTransferEnabled], a
ld b, $70
ld c, $90
ld a, c
ldh [hSCX], a
call DelayFrame
ld a, %11100100 ; inverted palette for silhouette effect
ldh [rBGP], a
ldh [rOBP0], a
ldh [rOBP1], a
.slideSilhouettesLoop ; slide silhouettes of the player's pic and the enemy's pic onto the screen
ld h, b
ld l, $40
call SetScrollXForSlidingPlayerBodyLeft ; begin background scrolling on line $40
inc b
inc b
ld h, $0
ld l, $60
call SetScrollXForSlidingPlayerBodyLeft ; end background scrolling on line $60
call SlidePlayerHeadLeft
ld a, c
ldh [hSCX], a
dec c
dec c
jr nz, .slideSilhouettesLoop
ld a, $1
ldh [hAutoBGTransferEnabled], a
ld a, $31
ldh [hStartTileID], a
hlcoord 1, 5
predef CopyUncompressedPicToTilemap
xor a
ldh [hWY], a
ldh [rWY], a
inc a
ldh [hAutoBGTransferEnabled], a
call Delay3
ld b, SET_PAL_BATTLE
call RunPaletteCommand
call HideSprites
jpfar PrintBeginningBattleText
; when a battle is starting, silhouettes of the player's pic and the enemy's pic are slid onto the screen
; the lower of the player's pic (his body) is part of the background, but his head is a sprite
; the reason for this is that it shares Y coordinates with the lower part of the enemy pic, so background scrolling wouldn't work for both pics
; instead, the enemy pic is part of the background and uses the scroll register, while the player's head is a sprite and is slid by changing its X coordinates in a loop
SlidePlayerHeadLeft:
push bc
ld hl, wShadowOAMSprite00XCoord
ld c, $15 ; number of OAM entries
ld de, $4 ; size of OAM entry
.loop
dec [hl] ; decrement X
dec [hl] ; decrement X
add hl, de ; next OAM entry
dec c
jr nz, .loop
pop bc
ret
SetScrollXForSlidingPlayerBodyLeft:
ldh a, [rLY]
cp l
jr nz, SetScrollXForSlidingPlayerBodyLeft
ld a, h
ldh [rSCX], a
.loop
ldh a, [rLY]
cp h
jr z, .loop
ret
StartBattle:
xor a
ld [wPartyGainExpFlags], a
ld [wPartyFoughtCurrentEnemyFlags], a
ld [wActionResultOrTookBattleTurn], a
inc a
ld [wFirstMonsNotOutYet], a
ld hl, wEnemyMon1HP
ld bc, wEnemyMon2 - wEnemyMon1 - 1
ld d, $3
.findFirstAliveEnemyMonLoop
inc d
ld a, [hli]
or [hl]
jr nz, .foundFirstAliveEnemyMon
add hl, bc
jr .findFirstAliveEnemyMonLoop
.foundFirstAliveEnemyMon
ld a, d
ld [wSerialExchangeNybbleReceiveData], a
ld a, [wIsInBattle]
dec a ; is it a trainer battle?
call nz, EnemySendOutFirstMon ; if it is a trainer battle, send out enemy mon
ld c, 40
call DelayFrames
call SaveScreenTilesToBuffer1
.checkAnyPartyAlive
call AnyPartyAlive
ld a, d
and a
jp z, HandlePlayerBlackOut ; jump if no mon is alive
call LoadScreenTilesFromBuffer1
ld a, [wBattleType]
and a ; is it a normal battle?
jp z, .playerSendOutFirstMon ; if so, send out player mon
; safari zone battle
.displaySafariZoneBattleMenu
call DisplayBattleMenu
ret c ; return if the player ran from battle
ld a, [wActionResultOrTookBattleTurn]
and a ; was the item used successfully?
jr z, .displaySafariZoneBattleMenu ; if not, display the menu again; XXX does this ever jump?
ld a, [wNumSafariBalls]
and a
jr nz, .notOutOfSafariBalls
call LoadScreenTilesFromBuffer1
ld hl, .outOfSafariBallsText
jp PrintText
.notOutOfSafariBalls
callfar PrintSafariZoneBattleText
ld a, [wEnemyMonSpeed + 1]
add a
ld b, a ; init b (which is later compared with random value) to (enemy speed % 256) * 2
jp c, EnemyRan ; if (enemy speed % 256) > 127, the enemy runs
ld a, [wSafariBaitFactor]
and a ; is bait factor 0?
jr z, .checkEscapeFactor
; bait factor is not 0
; divide b by 4 (making the mon less likely to run)
srl b
srl b
.checkEscapeFactor
ld a, [wSafariEscapeFactor]
and a ; is escape factor 0?
jr z, .compareWithRandomValue
; escape factor is not 0
; multiply b by 2 (making the mon more likely to run)
sla b
jr nc, .compareWithRandomValue
; cap b at 255
ld b, $ff
.compareWithRandomValue
call Random
cp b
jr nc, .checkAnyPartyAlive
jr EnemyRan ; if b was greater than the random value, the enemy runs
.outOfSafariBallsText
text_far _OutOfSafariBallsText
text_end
.playerSendOutFirstMon
xor a
ld [wWhichPokemon], a
.findFirstAliveMonLoop
call HasMonFainted
jr nz, .foundFirstAliveMon
; fainted, go to the next one
ld hl, wWhichPokemon
inc [hl]
jr .findFirstAliveMonLoop
.foundFirstAliveMon
ld a, [wWhichPokemon]
ld [wPlayerMonNumber], a
inc a
ld hl, wPartySpecies - 1
ld c, a
ld b, 0
add hl, bc
ld a, [hl] ; species
ld [wcf91], a
ld [wBattleMonSpecies2], a
call LoadScreenTilesFromBuffer1
hlcoord 1, 5
ld a, $9
call SlideTrainerPicOffScreen
call SaveScreenTilesToBuffer1
ld a, [wWhichPokemon]
ld c, a
ld b, FLAG_SET
push bc
ld hl, wPartyGainExpFlags
predef FlagActionPredef
ld hl, wPartyFoughtCurrentEnemyFlags
pop bc
predef FlagActionPredef
call LoadBattleMonFromParty
call LoadScreenTilesFromBuffer1
call SendOutMon
jr MainInBattleLoop
; wild mon or link battle enemy ran from battle
EnemyRan:
call LoadScreenTilesFromBuffer1
ld a, [wLinkState]
cp LINK_STATE_BATTLING
ld hl, WildRanText
jr nz, .printText
; link battle
xor a
ld [wBattleResult], a
ld hl, EnemyRanText
.printText
call PrintText
ld a, SFX_RUN
call PlaySoundWaitForCurrent
xor a
ldh [hWhoseTurn], a
jpfar AnimationSlideEnemyMonOff
WildRanText:
text_far _WildRanText
text_end
EnemyRanText:
text_far _EnemyRanText
text_end
MainInBattleLoop:
call ReadPlayerMonCurHPAndStatus
ld hl, wBattleMonHP
ld a, [hli]
or [hl] ; is battle mon HP 0?
jp z, HandlePlayerMonFainted ; if battle mon HP is 0, jump
ld hl, wEnemyMonHP
ld a, [hli]
or [hl] ; is enemy mon HP 0?
jp z, HandleEnemyMonFainted ; if enemy mon HP is 0, jump
call SaveScreenTilesToBuffer1
xor a
ld [wFirstMonsNotOutYet], a
ld a, [wPlayerBattleStatus2]
and (1 << NEEDS_TO_RECHARGE) | (1 << USING_RAGE) ; check if the player is using Rage or needs to recharge
jr nz, .selectEnemyMove
; the player is not using Rage and doesn't need to recharge
ld hl, wEnemyBattleStatus1
res FLINCHED, [hl] ; reset flinch bit
ld hl, wPlayerBattleStatus1
res FLINCHED, [hl] ; reset flinch bit
ld a, [hl]
and (1 << THRASHING_ABOUT) | (1 << CHARGING_UP) ; check if the player is thrashing about or charging for an attack
jr nz, .selectEnemyMove ; if so, jump
; the player is neither thrashing about nor charging for an attack
call DisplayBattleMenu ; show battle menu
ret c ; return if player ran from battle
ld a, [wEscapedFromBattle]
and a
ret nz ; return if pokedoll was used to escape from battle
ld a, [wBattleMonStatus]
and (1 << FRZ) | SLP_MASK
jr nz, .selectEnemyMove ; if so, jump
ld a, [wPlayerBattleStatus1]
and (1 << STORING_ENERGY) | (1 << USING_TRAPPING_MOVE) ; check player is using Bide or using a multi-turn attack like wrap
jr nz, .selectEnemyMove ; if so, jump
ld a, [wEnemyBattleStatus1]
bit USING_TRAPPING_MOVE, a ; check if enemy is using a multi-turn attack like wrap
jr z, .selectPlayerMove ; if not, jump
; enemy is using a multi-turn attack like wrap, so player is trapped and cannot execute a move
ld a, $ff
ld [wPlayerSelectedMove], a
jr .selectEnemyMove
.selectPlayerMove
ld a, [wActionResultOrTookBattleTurn]
and a ; has the player already used the turn (e.g. by using an item, trying to run or switching pokemon)
jr nz, .selectEnemyMove
ld [wMoveMenuType], a
inc a
ld [wAnimationID], a
xor a
ld [wMenuItemToSwap], a
call MoveSelectionMenu
push af
call LoadScreenTilesFromBuffer1
call DrawHUDsAndHPBars
pop af
jr nz, MainInBattleLoop ; if the player didn't select a move, jump
.selectEnemyMove
call SelectEnemyMove
ld a, [wLinkState]
cp LINK_STATE_BATTLING
jr nz, .noLinkBattle
; link battle
ld a, [wSerialExchangeNybbleReceiveData]
cp LINKBATTLE_RUN
jp z, EnemyRan
cp LINKBATTLE_STRUGGLE
jr z, .noLinkBattle
cp LINKBATTLE_NO_ACTION
jr z, .noLinkBattle
sub 4
jr c, .noLinkBattle
; the link battle enemy has switched mons
ld a, [wPlayerBattleStatus1]
bit USING_TRAPPING_MOVE, a ; check if using multi-turn move like Wrap
jr z, .specialMoveNotUsed
ld a, [wPlayerMoveListIndex]
ld hl, wBattleMonMoves
ld c, a
ld b, 0
add hl, bc
ld a, [hl]
cp METRONOME ; a MIRROR MOVE check is missing, might lead to a desync in link battles
; when combined with multi-turn moves
jr nz, .specialMoveNotUsed
ld [wPlayerSelectedMove], a
.specialMoveNotUsed
callfar SwitchEnemyMon
.noLinkBattle
ld a, [wPlayerSelectedMove]
cp QUICK_ATTACK
jr nz, .playerDidNotUseQuickAttack
ld a, [wEnemySelectedMove]
cp QUICK_ATTACK
jr z, .compareSpeed ; if both used Quick Attack
jp .playerMovesFirst ; if player used Quick Attack and enemy didn't
.playerDidNotUseQuickAttack
ld a, [wEnemySelectedMove]
cp QUICK_ATTACK
jr z, .enemyMovesFirst ; if enemy used Quick Attack and player didn't
ld a, [wPlayerSelectedMove]
cp COUNTER
jr nz, .playerDidNotUseCounter
ld a, [wEnemySelectedMove]
cp COUNTER
jr z, .compareSpeed ; if both used Counter
jr .enemyMovesFirst ; if player used Counter and enemy didn't
.playerDidNotUseCounter
ld a, [wEnemySelectedMove]
cp COUNTER
jr z, .playerMovesFirst ; if enemy used Counter and player didn't
.compareSpeed
ld de, wBattleMonSpeed ; player speed value
ld hl, wEnemyMonSpeed ; enemy speed value
ld c, $2
call StringCmp ; compare speed values
jr z, .speedEqual
jr nc, .playerMovesFirst ; if player is faster
jr .enemyMovesFirst ; if enemy is faster
.speedEqual ; 50/50 chance for both players
ldh a, [hSerialConnectionStatus]
cp USING_INTERNAL_CLOCK
jr z, .invertOutcome
call BattleRandom
cp 50 percent + 1
jr c, .playerMovesFirst
jr .enemyMovesFirst
.invertOutcome
call BattleRandom
cp 50 percent + 1
jr c, .enemyMovesFirst
jr .playerMovesFirst
.enemyMovesFirst
ld a, $1
ldh [hWhoseTurn], a
callfar TrainerAI
jr c, .AIActionUsedEnemyFirst
call ExecuteEnemyMove
ld a, [wEscapedFromBattle]
and a ; was Teleport, Road, or Whirlwind used to escape from battle?
ret nz ; if so, return
ld a, b
and a
jp z, HandlePlayerMonFainted
.AIActionUsedEnemyFirst
call HandlePoisonBurnLeechSeed
jp z, HandleEnemyMonFainted
call DrawHUDsAndHPBars
call ExecutePlayerMove
ld a, [wEscapedFromBattle]
and a ; was Teleport, Road, or Whirlwind used to escape from battle?
ret nz ; if so, return
ld a, b
and a
jp z, HandleEnemyMonFainted
call HandlePoisonBurnLeechSeed
jp z, HandlePlayerMonFainted
call DrawHUDsAndHPBars
call CheckNumAttacksLeft
jp MainInBattleLoop
.playerMovesFirst
call ExecutePlayerMove
ld a, [wEscapedFromBattle]
and a ; was Teleport, Road, or Whirlwind used to escape from battle?
ret nz ; if so, return
ld a, b
and a
jp z, HandleEnemyMonFainted
call HandlePoisonBurnLeechSeed
jp z, HandlePlayerMonFainted
call DrawHUDsAndHPBars
ld a, $1
ldh [hWhoseTurn], a
callfar TrainerAI
jr c, .AIActionUsedPlayerFirst
call ExecuteEnemyMove
ld a, [wEscapedFromBattle]
and a ; was Teleport, Road, or Whirlwind used to escape from battle?
ret nz ; if so, return
ld a, b
and a
jp z, HandlePlayerMonFainted
.AIActionUsedPlayerFirst
call HandlePoisonBurnLeechSeed
jp z, HandleEnemyMonFainted
call DrawHUDsAndHPBars
call CheckNumAttacksLeft
jp MainInBattleLoop
HandlePoisonBurnLeechSeed:
ld hl, wBattleMonHP
ld de, wBattleMonStatus
ldh a, [hWhoseTurn]
and a
jr z, .playersTurn
ld hl, wEnemyMonHP
ld de, wEnemyMonStatus
.playersTurn
ld a, [de]
and (1 << BRN) | (1 << PSN)
jr z, .notBurnedOrPoisoned
push hl
ld hl, HurtByPoisonText
ld a, [de]
and 1 << BRN
jr z, .poisoned
ld hl, HurtByBurnText
.poisoned
call PrintText
xor a
ld [wAnimationType], a
ld a, BURN_PSN_ANIM
call PlayMoveAnimation ; play burn/poison animation
pop hl
call HandlePoisonBurnLeechSeed_DecreaseOwnHP
.notBurnedOrPoisoned
ld de, wPlayerBattleStatus2
ldh a, [hWhoseTurn]
and a
jr z, .playersTurn2
ld de, wEnemyBattleStatus2
.playersTurn2
ld a, [de]
add a
jr nc, .notLeechSeeded
push hl
ldh a, [hWhoseTurn]
push af
xor $1
ldh [hWhoseTurn], a
xor a
ld [wAnimationType], a
ld a, ABSORB
call PlayMoveAnimation ; play leech seed animation (from opposing mon)
pop af
ldh [hWhoseTurn], a
pop hl
call HandlePoisonBurnLeechSeed_DecreaseOwnHP
call HandlePoisonBurnLeechSeed_IncreaseEnemyHP
push hl
ld hl, HurtByLeechSeedText
call PrintText
pop hl
.notLeechSeeded
ld a, [hli]
or [hl]
ret nz ; test if fainted
call DrawHUDsAndHPBars
ld c, 20
call DelayFrames
xor a
ret
HurtByPoisonText:
text_far _HurtByPoisonText
text_end
HurtByBurnText:
text_far _HurtByBurnText
text_end
HurtByLeechSeedText:
text_far _HurtByLeechSeedText
text_end
; decreases the mon's current HP by 1/16 of the Max HP (multiplied by number of toxic ticks if active)
; note that the toxic ticks are considered even if the damage is not poison (hence the Leech Seed glitch)
; hl: HP pointer
; bc (out): total damage
HandlePoisonBurnLeechSeed_DecreaseOwnHP:
push hl
push hl
ld bc, $e ; skip to max HP
add hl, bc
ld a, [hli] ; load max HP
ld [wHPBarMaxHP+1], a
ld b, a
ld a, [hl]
ld [wHPBarMaxHP], a
ld c, a
srl b
rr c
srl b
rr c
srl c
srl c ; c = max HP/16 (assumption: HP < 1024)
ld a, c
and a
jr nz, .nonZeroDamage
inc c ; damage is at least 1
.nonZeroDamage
ld hl, wPlayerBattleStatus3
ld de, wPlayerToxicCounter
ldh a, [hWhoseTurn]
and a
jr z, .playersTurn
ld hl, wEnemyBattleStatus3
ld de, wEnemyToxicCounter
.playersTurn
bit BADLY_POISONED, [hl]
jr z, .noToxic
ld a, [de] ; increment toxic counter
inc a
ld [de], a
ld hl, 0
.toxicTicksLoop
add hl, bc
dec a
jr nz, .toxicTicksLoop
ld b, h ; bc = damage * toxic counter
ld c, l
.noToxic
pop hl
inc hl
ld a, [hl] ; subtract total damage from current HP
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, .noOverkill
xor a ; overkill: zero HP
ld [hli], a
ld [hl], a
ld [wHPBarNewHP], a
ld [wHPBarNewHP+1], a
.noOverkill
call UpdateCurMonHPBar
pop hl
ret
; adds bc to enemy HP
; bc isn't updated if HP subtracted was capped to prevent overkill
HandlePoisonBurnLeechSeed_IncreaseEnemyHP:
push hl
ld hl, wEnemyMonMaxHP
ldh a, [hWhoseTurn]
and a
jr z, .playersTurn
ld hl, wBattleMonMaxHP
.playersTurn
ld a, [hli]
ld [wHPBarMaxHP+1], a
ld a, [hl]
ld [wHPBarMaxHP], a
ld de, wBattleMonHP - wBattleMonMaxHP
add hl, de ; skip back from max hp to current hp
ld a, [hl]
ld [wHPBarOldHP], a ; add bc to current HP
add c
ld [hld], a
ld [wHPBarNewHP], a
ld a, [hl]
ld [wHPBarOldHP+1], a
adc b
ld [hli], a
ld [wHPBarNewHP+1], a
ld a, [wHPBarMaxHP]
ld c, a
ld a, [hld]
sub c
ld a, [wHPBarMaxHP+1]
ld b, a
ld a, [hl]
sbc b
jr c, .noOverfullHeal
ld a, b ; overfull heal, set HP to max HP
ld [hli], a
ld [wHPBarNewHP+1], a
ld a, c
ld [hl], a
ld [wHPBarNewHP], a
.noOverfullHeal
ldh a, [hWhoseTurn]
xor $1
ldh [hWhoseTurn], a
call UpdateCurMonHPBar
ldh a, [hWhoseTurn]
xor $1
ldh [hWhoseTurn], a
pop hl
ret
UpdateCurMonHPBar:
hlcoord 10, 9 ; tile pointer to player HP bar
ldh a, [hWhoseTurn]
and a
ld a, $1
jr z, .playersTurn
hlcoord 2, 2 ; tile pointer to enemy HP bar
xor a
.playersTurn
push bc
ld [wHPBarType], a
predef UpdateHPBar2
pop bc
ret
CheckNumAttacksLeft:
ld a, [wPlayerNumAttacksLeft]
and a
jr nz, .checkEnemy
; player has 0 attacks left
ld hl, wPlayerBattleStatus1
res USING_TRAPPING_MOVE, [hl] ; player not using multi-turn attack like wrap any more
.checkEnemy
ld a, [wEnemyNumAttacksLeft]
and a
ret nz
; enemy has 0 attacks left
ld hl, wEnemyBattleStatus1
res USING_TRAPPING_MOVE, [hl] ; enemy not using multi-turn attack like wrap any more
ret
HandleEnemyMonFainted:
xor a
ld [wInHandlePlayerMonFainted], a
call FaintEnemyPokemon
call AnyPartyAlive
ld a, d
and a
jp z, HandlePlayerBlackOut ; if no party mons are alive, the player blacks out
ld hl, wBattleMonHP
ld a, [hli]
or [hl] ; is battle mon HP zero?
call nz, DrawPlayerHUDAndHPBar ; if battle mon HP is not zero, draw player HD and HP bar
ld a, [wIsInBattle]
dec a
ret z ; return if it's a wild battle
call AnyEnemyPokemonAliveCheck
jp z, TrainerBattleVictory
ld hl, wBattleMonHP
ld a, [hli]
or [hl] ; does battle mon have 0 HP?
jr nz, .skipReplacingBattleMon ; if not, skip replacing battle mon
call DoUseNextMonDialogue ; this call is useless in a trainer battle. it shouldn't be here
ret c
call ChooseNextMon
.skipReplacingBattleMon
ld a, $1
ld [wActionResultOrTookBattleTurn], a
call ReplaceFaintedEnemyMon
jp z, EnemyRan
xor a
ld [wActionResultOrTookBattleTurn], a
jp MainInBattleLoop
FaintEnemyPokemon:
call ReadPlayerMonCurHPAndStatus
ld a, [wIsInBattle]
dec a
jr z, .wild
ld a, [wEnemyMonPartyPos]
ld hl, wEnemyMon1HP
ld bc, wEnemyMon2 - wEnemyMon1
call AddNTimes
xor a
ld [hli], a
ld [hl], a
.wild
ld hl, wPlayerBattleStatus1
res ATTACKING_MULTIPLE_TIMES, [hl]
; Bug. This only zeroes the high byte of the player's accumulated damage,
; setting the accumulated damage to itself mod 256 instead of 0 as was probably
; intended. That alone is problematic, but this mistake has another more severe
; effect. This function's counterpart for when the player mon faints,
; RemoveFaintedPlayerMon, zeroes both the high byte and the low byte. In a link
; battle, the other player's Game Boy will call that function in response to
; the enemy mon (the player mon from the other side's perspective) fainting,
; and the states of the two Game Boys will go out of sync unless the damage
; was congruent to 0 modulo 256.
xor a
ld [wPlayerBideAccumulatedDamage], a
ld hl, wEnemyStatsToDouble ; clear enemy statuses
ld [hli], a
ld [hli], a
ld [hli], a
ld [hli], a
ld [hl], a
ld [wEnemyDisabledMove], a
ld [wEnemyDisabledMoveNumber], a
ld [wEnemyMonMinimized], a
ld hl, wPlayerUsedMove
ld [hli], a
ld [hl], a
hlcoord 12, 5
decoord 12, 6
call SlideDownFaintedMonPic
hlcoord 0, 0
lb bc, 4, 11
call ClearScreenArea
ld a, [wIsInBattle]
dec a
jr z, .wild_win
xor a
ld [wFrequencyModifier], a
ld [wTempoModifier], a
ld a, SFX_FAINT_FALL
call PlaySoundWaitForCurrent
.sfxwait
ld a, [wChannelSoundIDs + CHAN5]
cp SFX_FAINT_FALL
jr z, .sfxwait
ld a, SFX_FAINT_THUD
call PlaySound
call WaitForSoundToFinish
jr .sfxplayed
.wild_win
call EndLowHealthAlarm
ld a, MUSIC_DEFEATED_WILD_MON
call PlayBattleVictoryMusic
.sfxplayed
; bug: win sfx is played for wild battles before checking for player mon HP
; this can lead to odd scenarios where both player and enemy faint, as the win sfx plays yet the player never won the battle
ld hl, wBattleMonHP
ld a, [hli]
or [hl]
jr nz, .playermonnotfaint
ld a, [wInHandlePlayerMonFainted]
and a ; was this called by HandlePlayerMonFainted?
jr nz, .playermonnotfaint ; if so, don't call RemoveFaintedPlayerMon twice
call RemoveFaintedPlayerMon
.playermonnotfaint
call AnyPartyAlive
ld a, d
and a
ret z
ld hl, EnemyMonFaintedText
call PrintText
call PrintEmptyString
call SaveScreenTilesToBuffer1
xor a
ld [wBattleResult], a
ld b, EXP_ALL
call IsItemInBag
push af
jr z, .giveExpToMonsThatFought ; if no exp all, then jump
; the player has exp all
; first, we halve the values that determine exp gain
; the enemy mon base stats are added to stat exp, so they are halved
; the base exp (which determines normal exp) is also halved
ld hl, wEnemyMonBaseStats
ld b, $7
.halveExpDataLoop
srl [hl]
inc hl
dec b
jr nz, .halveExpDataLoop
; give exp (divided evenly) to the mons that actually fought in battle against the enemy mon that has fainted
; if exp all is in the bag, this will be only be half of the stat exp and normal exp, due to the above loop
.giveExpToMonsThatFought
xor a
ld [wBoostExpByExpAll], a
callfar GainExperience
pop af
ret z ; return if no exp all
; the player has exp all
; now, set the gain exp flag for every party member
; half of the total stat exp and normal exp will divided evenly amongst every party member
ld a, $1
ld [wBoostExpByExpAll], a
ld a, [wPartyCount]
ld b, 0
.gainExpFlagsLoop
scf
rl b
dec a
jr nz, .gainExpFlagsLoop
ld a, b
ld [wPartyGainExpFlags], a
jpfar GainExperience
EnemyMonFaintedText:
text_far _EnemyMonFaintedText
text_end
EndLowHealthAlarm:
; This function is called when the player has the won the battle. It turns off
; the low health alarm and prevents it from reactivating until the next battle.
xor a
ld [wLowHealthAlarm], a ; turn off low health alarm
ld [wChannelSoundIDs + CHAN5], a
inc a
ld [wLowHealthAlarmDisabled], a ; prevent it from reactivating
ret
AnyEnemyPokemonAliveCheck:
ld a, [wEnemyPartyCount]
ld b, a
xor a
ld hl, wEnemyMon1HP
ld de, wEnemyMon2 - wEnemyMon1
.nextPokemon
or [hl]
inc hl
or [hl]
dec hl
add hl, de
dec b
jr nz, .nextPokemon
and a
ret
; stores whether enemy ran in Z flag
ReplaceFaintedEnemyMon:
ld hl, wEnemyHPBarColor
ld e, $30
call GetBattleHealthBarColor
callfar DrawEnemyPokeballs
ld a, [wLinkState]
cp LINK_STATE_BATTLING
jr nz, .notLinkBattle
; link battle
call LinkBattleExchangeData
ld a, [wSerialExchangeNybbleReceiveData]
cp LINKBATTLE_RUN
ret z
call LoadScreenTilesFromBuffer1
.notLinkBattle
call EnemySendOut
xor a
ld [wEnemyMoveNum], a
ld [wActionResultOrTookBattleTurn], a
ld [wAILayer2Encouragement], a
inc a ; reset Z flag
ret
TrainerBattleVictory:
call EndLowHealthAlarm
ld b, MUSIC_DEFEATED_GYM_LEADER
ld a, [wGymLeaderNo]
and a
jr nz, .gymleader
ld b, MUSIC_DEFEATED_TRAINER
.gymleader
ld a, [wTrainerClass]
cp RIVAL3 ; final battle against rival
jr nz, .notrival
ld b, MUSIC_DEFEATED_GYM_LEADER
ld hl, wFlags_D733
set 1, [hl]
.notrival
ld a, [wLinkState]
cp LINK_STATE_BATTLING
ld a, b
call nz, PlayBattleVictoryMusic
ld hl, TrainerDefeatedText
call PrintText
ld a, [wLinkState]
cp LINK_STATE_BATTLING
ret z
call ScrollTrainerPicAfterBattle
ld c, 40
call DelayFrames
call PrintEndBattleText
; win money
ld hl, MoneyForWinningText
call PrintText
ld de, wPlayerMoney + 2
ld hl, wAmountMoneyWon + 2
ld c, $3
predef_jump AddBCDPredef
MoneyForWinningText:
text_far _MoneyForWinningText
text_end
TrainerDefeatedText:
text_far _TrainerDefeatedText
text_end
PlayBattleVictoryMusic:
push af
ld a, SFX_STOP_ALL_MUSIC
ld [wNewSoundID], a
call PlaySoundWaitForCurrent
ld c, BANK(Music_DefeatedTrainer)
pop af
call PlayMusic
jp Delay3
HandlePlayerMonFainted:
ld a, 1
ld [wInHandlePlayerMonFainted], a
call RemoveFaintedPlayerMon
call AnyPartyAlive ; test if any more mons are alive
ld a, d
and a
jp z, HandlePlayerBlackOut
ld hl, wEnemyMonHP
ld a, [hli]
or [hl] ; is enemy mon's HP 0?
jr nz, .doUseNextMonDialogue ; if not, jump
; the enemy mon has 0 HP
call FaintEnemyPokemon
ld a, [wIsInBattle]
dec a
ret z ; if wild encounter, battle is over
call AnyEnemyPokemonAliveCheck
jp z, TrainerBattleVictory
.doUseNextMonDialogue
call DoUseNextMonDialogue
ret c ; return if the player ran from battle
call ChooseNextMon
jp nz, MainInBattleLoop ; if the enemy mon has more than 0 HP, go back to battle loop
; the enemy mon has 0 HP
ld a, $1
ld [wActionResultOrTookBattleTurn], a
call ReplaceFaintedEnemyMon
jp z, EnemyRan ; if enemy ran from battle rather than sending out another mon, jump
xor a
ld [wActionResultOrTookBattleTurn], a
jp MainInBattleLoop