ref: 01ba6bed889be703dbeaf8fa9be56f1b782606a1
dir: /engine/battle/ai/items.asm/
AI_SwitchOrTryItem: ; 38000 and a ld a, [wBattleMode] dec a ret z ld a, [wLinkMode] and a ret nz farcall CheckEnemyLockedIn ret nz ld a, [PlayerSubStatus5] bit SUBSTATUS_CANT_RUN, a jr nz, DontSwitch ld a, [wEnemyWrapCount] and a jr nz, DontSwitch ld hl, TrainerClassAttributes + TRNATTR_AI_ITEM_SWITCH ld a, [InBattleTowerBattle] ; Load always the first TrainerClass for BattleTower-Trainers and a jr nz, .ok ld a, [TrainerClass] dec a ld bc, NUM_TRAINER_ATTRIBUTES call AddNTimes .ok bit SWITCH_OFTEN_F, [hl] jp nz, SwitchOften bit SWITCH_RARELY_F, [hl] jp nz, SwitchRarely bit SWITCH_SOMETIMES_F, [hl] jp nz, SwitchSometimes ; fallthrough DontSwitch: ; 38041 call AI_TryItem ret ; 38045 SwitchOften: ; 38045 callfar CheckAbleToSwitch ld a, [wEnemySwitchMonParam] and $f0 jp z, DontSwitch cp $10 jr nz, .not_10 call Random cp 1 + 50 percent jr c, .switch jp DontSwitch .not_10 cp $20 jr nz, .not_20 call Random cp -1 + 79 percent jr c, .switch jp DontSwitch .not_20 ; $30 call Random cp 4 percent jp c, DontSwitch .switch ld a, [wEnemySwitchMonParam] and $f inc a ; In register 'a' is the number (1-6) of the Pkmn to switch to ld [wEnemySwitchMonIndex], a jp AI_TrySwitch ; 38083 SwitchRarely: ; 38083 callfar CheckAbleToSwitch ld a, [wEnemySwitchMonParam] and $f0 jp z, DontSwitch cp $10 jr nz, .not_10 call Random cp 8 percent jr c, .switch jp DontSwitch .not_10 cp $20 jr nz, .not_20 call Random cp 12 percent jr c, .switch jp DontSwitch .not_20 ; $30 call Random cp -1 + 79 percent jp c, DontSwitch .switch ld a, [wEnemySwitchMonParam] and $f inc a ld [wEnemySwitchMonIndex], a jp AI_TrySwitch ; 380c1 SwitchSometimes: ; 380c1 callfar CheckAbleToSwitch ld a, [wEnemySwitchMonParam] and $f0 jp z, DontSwitch cp $10 jr nz, .not_10 call Random cp -1 + 20 percent jr c, .switch jp DontSwitch .not_10 cp $20 jr nz, .not_20 call Random cp 1 + 50 percent jr c, .switch jp DontSwitch .not_20 ; $30 call Random cp -1 + 20 percent jp c, DontSwitch .switch ld a, [wEnemySwitchMonParam] and $f inc a ld [wEnemySwitchMonIndex], a jp AI_TrySwitch ; 380ff CheckSubstatusCantRun: ; 380ff ld a, [EnemySubStatus5] bit SUBSTATUS_CANT_RUN, a ret ; 38105 AI_TryItem: ; 38105 ; items are not allowed in the BattleTower ld a, [InBattleTowerBattle] and a ret nz ld a, [wEnemyTrainerItem1] ld b, a ld a, [wEnemyTrainerItem2] or b ret z call .IsHighestLevel ret nc ld a, [TrainerClass] dec a ld hl, TrainerClassAttributes + TRNATTR_AI_ITEM_SWITCH ld bc, NUM_TRAINER_ATTRIBUTES call AddNTimes ld b, h ld c, l ld hl, AI_Items ld de, wEnemyTrainerItem1 .loop ld a, [hl] and a inc a ret z ld a, [de] cp [hl] jr z, .has_item inc de ld a, [de] cp [hl] jr z, .has_item dec de inc hl inc hl inc hl jr .loop .has_item inc hl push hl push de ld de, .callback push de ld a, [hli] ld h, [hl] ld l, a jp hl .callback pop de pop hl inc hl inc hl jr c, .loop .used_item xor a ld [de], a inc a ld [wEnemyGoesFirst], a ld hl, EnemySubStatus3 res SUBSTATUS_BIDE, [hl] xor a ld [EnemyFuryCutterCount], a ld [EnemyProtectCount], a ld [wEnemyRageCounter], a ld hl, EnemySubStatus4 res SUBSTATUS_RAGE, [hl] xor a ld [LastEnemyCounterMove], a scf ret .IsHighestLevel: ; 38170 ld a, [OTPartyCount] ld d, a ld e, 0 ld hl, OTPartyMon1Level ld bc, PARTYMON_STRUCT_LENGTH .next ld a, [hl] cp e jr c, .ok ld e, a .ok add hl, bc dec d jr nz, .next ld a, [CurOTMon] ld hl, OTPartyMon1Level call AddNTimes ld a, [hl] cp e jr nc, .yes .no and a ret .yes scf ret ; 38196 AI_Items: ; 39196 dbw FULL_RESTORE, .FullRestore dbw MAX_POTION, .MaxPotion dbw HYPER_POTION, .HyperPotion dbw SUPER_POTION, .SuperPotion dbw POTION, .Potion dbw X_ACCURACY, .XAccuracy dbw FULL_HEAL, .FullHeal dbw GUARD_SPEC, .GuardSpec dbw DIRE_HIT, .DireHit dbw X_ATTACK, .XAttack dbw X_DEFEND, .XDefend dbw X_SPEED, .XSpeed dbw X_SPECIAL, .XSpecial db -1 ; end ; 381be .FullHeal: ; 381be call .Status jp c, .DontUse call EnemyUsedFullHeal jp .Use ; 381ca .Status: ; 381ca (e:41ca) ld a, [EnemyMonStatus] and a jp z, .DontUse ld a, [bc] bit CONTEXT_USE_F, a jr nz, .StatusCheckContext ld a, [bc] bit ALWAYS_USE_F, a jp nz, .Use call Random cp -1 + 20 percent jp c, .Use jp .DontUse .StatusCheckContext: ld a, [EnemySubStatus5] bit SUBSTATUS_TOXIC, a jr z, .FailToxicCheck ld a, [EnemyToxicCount] cp 4 jr c, .FailToxicCheck call Random cp 1 + 50 percent jp c, .Use .FailToxicCheck: ld a, [EnemyMonStatus] and 1 << FRZ | SLP jp z, .DontUse jp .Use ; 38208 .FullRestore: ; 38208 call .HealItem jp nc, .UseFullRestore ld a, [bc] bit CONTEXT_USE_F, a jp z, .DontUse call .Status jp c, .DontUse .UseFullRestore: call EnemyUsedFullRestore jp .Use ; 38220 .MaxPotion: ; 38220 call .HealItem jp c, .DontUse call EnemyUsedMaxPotion jp .Use .HealItem: ; 3822c (e:422c) ld a, [bc] bit CONTEXT_USE_F, a jr nz, .CheckHalfOrQuarterHP callfar AICheckEnemyHalfHP jp c, .DontUse ld a, [bc] bit UNKNOWN_USE_F, a jp nz, .CheckQuarterHP callfar AICheckEnemyQuarterHP jp nc, .UseHealItem call Random cp 1 + 50 percent jp c, .UseHealItem jp .DontUse .CheckQuarterHP: ; 38254 (e:4254) callfar AICheckEnemyQuarterHP jp c, .DontUse call Random cp -1 + 20 percent jp c, .DontUse jr .UseHealItem .CheckHalfOrQuarterHP: ; 38267 (e:4267) callfar AICheckEnemyHalfHP jp c, .DontUse callfar AICheckEnemyQuarterHP jp nc, .UseHealItem call Random cp -1 + 20 percent jp nc, .DontUse .UseHealItem: ; 38281 (e:4281) jp .Use ; 38284 .HyperPotion: ; 38284 call .HealItem jp c, .DontUse ld b, 200 call EnemyUsedHyperPotion jp .Use ; 38292 (e:4292) .SuperPotion: ; 38292 call .HealItem jp c, .DontUse ld b, 50 call EnemyUsedSuperPotion jp .Use ; 382a0 .Potion: ; 382a0 call .HealItem jp c, .DontUse ld b, 20 call EnemyUsedPotion jp .Use ; 382ae .asm_382ae ; This appears to be unused callfar AICheckEnemyMaxHP jr c, .dont_use push bc ld de, EnemyMonMaxHP + 1 ld hl, EnemyMonHP + 1 ld a, [de] sub [hl] jr z, .check_40_percent dec hl dec de ld c, a sbc [hl] and a jr nz, .check_40_percent ld a, c cp b jp c, .check_50_percent callfar AICheckEnemyQuarterHP jr c, .check_40_percent .check_50_percent pop bc ld a, [bc] bit UNKNOWN_USE_F, a jp z, .Use call Random cp 1 + 50 percent jp c, .Use .dont_use jp .DontUse .check_40_percent pop bc ld a, [bc] bit UNKNOWN_USE_F, a jp z, .DontUse call Random cp 1 + 39 percent jp c, .Use jp .DontUse ; 382f9 .XAccuracy: ; 382f9 call .XItem jp c, .DontUse call EnemyUsedXAccuracy jp .Use ; 38305 .GuardSpec: ; 38305 call .XItem jp c, .DontUse call EnemyUsedGuardSpec jp .Use ; 38311 .DireHit: ; 38311 call .XItem jp c, .DontUse call EnemyUsedDireHit jp .Use ; 3831d (e:431d) .XAttack: ; 3831d call .XItem jp c, .DontUse call EnemyUsedXAttack jp .Use ; 38329 .XDefend: ; 38329 call .XItem jp c, .DontUse call EnemyUsedXDefend jp .Use ; 38335 .XSpeed: ; 38335 call .XItem jp c, .DontUse call EnemyUsedXSpeed jp .Use ; 38341 .XSpecial: ; 38341 call .XItem jp c, .DontUse call EnemyUsedXSpecial jp .Use ; 3834d .XItem: ; 3834d (e:434d) ld a, [EnemyTurnsTaken] and a jr nz, .notfirstturnout ld a, [bc] bit ALWAYS_USE_F, a jp nz, .Use call Random cp 1 + 50 percent jp c, .DontUse ld a, [bc] bit CONTEXT_USE_F, a jp nz, .Use call Random cp 1 + 50 percent jp c, .DontUse jp .Use .notfirstturnout ld a, [bc] bit ALWAYS_USE_F, a jp z, .DontUse call Random cp -1 + 20 percent jp nc, .DontUse jp .Use .DontUse: scf ret .Use: and a ret AIUpdateHUD: ; 38387 call UpdateEnemyMonInParty farcall UpdateEnemyHUD ld a, $1 ld [hBGMapMode], a ld hl, wEnemyItemState dec [hl] scf ret ; 3839a AIUsedItemSound: ; 3839a push de ld de, SFX_FULL_HEAL call PlaySFX pop de ret ; 383a3 EnemyUsedFullHeal: ; 383a3 (e:43a3) call AIUsedItemSound call AI_HealStatus ld a, FULL_HEAL jp PrintText_UsedItemOn_AND_AIUpdateHUD EnemyUsedMaxPotion: ; 383ae (e:43ae) ld a, MAX_POTION ld [CurEnemyItem], a jr FullRestoreContinue EnemyUsedFullRestore: ; 383b5 (e:43b5) call AI_HealStatus ld a, FULL_RESTORE ld [CurEnemyItem], a ld hl, EnemySubStatus3 res SUBSTATUS_CONFUSED, [hl] xor a ld [EnemyConfuseCount], a FullRestoreContinue: ; 383c6 ld de, wCurHPAnimOldHP ld hl, EnemyMonHP + 1 ld a, [hld] ld [de], a inc de ld a, [hl] ld [de], a inc de ld hl, EnemyMonMaxHP + 1 ld a, [hld] ld [de], a inc de ld [wCurHPAnimMaxHP], a ld [EnemyMonHP + 1], a ld a, [hl] ld [de], a ld [wCurHPAnimMaxHP + 1], a ld [EnemyMonHP], a jr EnemyPotionFinish ; 383e8 (e:43e8) EnemyUsedPotion: ; 383e8 ld a, POTION ld b, 20 jr EnemyPotionContinue EnemyUsedSuperPotion: ; 383ee ld a, SUPER_POTION ld b, 50 jr EnemyPotionContinue EnemyUsedHyperPotion: ; 383f4 (e:43f4) ld a, HYPER_POTION ld b, 200 EnemyPotionContinue: ; 383f8 ld [CurEnemyItem], a ld hl, EnemyMonHP + 1 ld a, [hl] ld [wCurHPAnimOldHP], a add b ld [hld], a ld [wCurHPAnimNewHP], a ld a, [hl] ld [wCurHPAnimOldHP + 1], a ld [wCurHPAnimNewHP + 1], a jr nc, .ok inc a ld [hl], a ld [wCurHPAnimNewHP + 1], a .ok inc hl ld a, [hld] ld b, a ld de, EnemyMonMaxHP + 1 ld a, [de] dec de ld [wCurHPAnimMaxHP], a sub b ld a, [hli] ld b, a ld a, [de] ld [wCurHPAnimMaxHP + 1], a sbc b jr nc, EnemyPotionFinish inc de ld a, [de] dec de ld [hld], a ld [wCurHPAnimNewHP], a ld a, [de] ld [hl], a ld [wCurHPAnimNewHP + 1], a EnemyPotionFinish: ; 38436 call PrintText_UsedItemOn hlcoord 2, 2 xor a ld [wWhichHPBar], a call AIUsedItemSound predef AnimateHPBar jp AIUpdateHUD AI_TrySwitch: ; 3844b ; Determine whether the AI can switch based on how many Pokemon are still alive. ; If it can switch, it will. ld a, [OTPartyCount] ld c, a ld hl, OTPartyMon1HP ld d, 0 .SwitchLoop: ld a, [hli] ld b, a ld a, [hld] or b jr z, .fainted inc d .fainted push bc ld bc, PARTYMON_STRUCT_LENGTH add hl, bc pop bc dec c jr nz, .SwitchLoop ld a, d cp 2 jp nc, AI_Switch and a ret ; 3846c AI_Switch: ; 3846c ld a, $1 ld [wEnemyIsSwitching], a ld [wEnemyGoesFirst], a ld hl, EnemySubStatus4 res SUBSTATUS_RAGE, [hl] xor a ld [hBattleTurn], a callfar PursuitSwitch push af ld a, [CurOTMon] ld hl, OTPartyMon1Status ld bc, PARTYMON_STRUCT_LENGTH call AddNTimes ld d, h ld e, l ld hl, EnemyMonStatus ld bc, MON_MAXHP - MON_STATUS call CopyBytes pop af jr c, .skiptext ld hl, TextJump_EnemyWithdrew call PrintText .skiptext ld a, 1 ld [wBattleHasJustStarted], a callfar NewEnemyMonStatus callfar ResetEnemyStatLevels ld hl, PlayerSubStatus1 res SUBSTATUS_IN_LOVE, [hl] farcall EnemySwitch farcall ResetBattleParticipants xor a ld [wBattleHasJustStarted], a ld a, [wLinkMode] and a ret nz scf ret ; 384d0 TextJump_EnemyWithdrew: ; 384d0 text_jump Text_EnemyWithdrew db "@" ; 384d5 Function384d5: ; This appears to be unused call AIUsedItemSound call AI_HealStatus ld a, FULL_HEAL_RED ; X_SPEED jp PrintText_UsedItemOn_AND_AIUpdateHUD ; 384e0 AI_HealStatus: ; 384e0 ld a, [CurOTMon] ld hl, OTPartyMon1Status ld bc, PARTYMON_STRUCT_LENGTH call AddNTimes xor a ld [hl], a ld [EnemyMonStatus], a ; Bug: this should reset SUBSTATUS_NIGHTMARE too ; Uncomment the lines below to fix ; ld hl, EnemySubStatus1 ; res SUBSTATUS_NIGHTMARE, [hl] ld hl, EnemySubStatus5 res SUBSTATUS_TOXIC, [hl] ret ; 384f7 EnemyUsedXAccuracy: ; 384f7 call AIUsedItemSound ld hl, EnemySubStatus4 set SUBSTATUS_X_ACCURACY, [hl] ld a, X_ACCURACY jp PrintText_UsedItemOn_AND_AIUpdateHUD ; 38504 EnemyUsedGuardSpec: ; 38504 call AIUsedItemSound ld hl, EnemySubStatus4 set SUBSTATUS_MIST, [hl] ld a, GUARD_SPEC jp PrintText_UsedItemOn_AND_AIUpdateHUD ; 38511 EnemyUsedDireHit: ; 38511 call AIUsedItemSound ld hl, EnemySubStatus4 set SUBSTATUS_FOCUS_ENERGY, [hl] ld a, DIRE_HIT jp PrintText_UsedItemOn_AND_AIUpdateHUD ; 3851e Function3851e: ; This appears to be unused ld [hDivisor], a ld hl, EnemyMonMaxHP ld a, [hli] ld [hDividend], a ld a, [hl] ld [hDividend + 1], a ld b, 2 call Divide ld a, [hQuotient + 2] ld c, a ld a, [hQuotient + 1] ld b, a ld hl, EnemyMonHP + 1 ld a, [hld] ld e, a ld a, [hl] ld d, a ld a, d sub b ret nz ld a, e sub c ret ; 38541 EnemyUsedXAttack: ; 38541 ld b, ATTACK ld a, X_ATTACK jr EnemyUsedXItem ; 38547 EnemyUsedXDefend: ; 38547 ld b, DEFENSE ld a, X_DEFEND jr EnemyUsedXItem ; 3854d EnemyUsedXSpeed: ; 3854d ld b, SPEED ld a, X_SPEED jr EnemyUsedXItem ; 38553 EnemyUsedXSpecial: ; 38553 ld b, SP_ATTACK ld a, X_SPECIAL ; Parameter ; a = ITEM_CONSTANT ; b = BATTLE_CONSTANT (ATTACK, DEFENSE, SPEED, SP_ATTACK, SP_DEFENSE, ACCURACY, EVASION) EnemyUsedXItem: ld [CurEnemyItem], a push bc call PrintText_UsedItemOn pop bc farcall CheckIfStatCanBeRaised jp AIUpdateHUD ; 38568 ; Parameter ; a = ITEM_CONSTANT PrintText_UsedItemOn_AND_AIUpdateHUD: ; 38568 ld [CurEnemyItem], a call PrintText_UsedItemOn jp AIUpdateHUD ; 38571 PrintText_UsedItemOn: ; 38571 ld a, [CurEnemyItem] ld [wd265], a call GetItemName ld hl, StringBuffer1 ld de, wMonOrItemNameBuffer ld bc, ITEM_NAME_LENGTH call CopyBytes ld hl, TextJump_EnemyUsedOn jp PrintText ; 3858c TextJump_EnemyUsedOn: ; 3858c text_jump Text_EnemyUsedOn db "@" ; 38591