Greatly reduce AI lag (#3308)

2024-12-26 03:34:15 +01:00 · 2023-09-26 07:28:18 -03:00 · 2023-09-26 07:28:18 -03:00 · de577f955a
commit de577f955a
parent 0b9f12efe4 7d9555dadb
14 changed files with 1616 additions and 1621 deletions
--- a/include/battle.h
+++ b/include/battle.h
@ -277,6 +277,7 @@ struct AIPartyData // Opposing battlers - party mons.
    u8 count[NUM_BATTLE_SIDES];
 };

+// Ai Data used when deciding which move to use, computed only once before each turn's start.
 struct AiLogicData
 {
    u16 abilities[MAX_BATTLERS_COUNT];
@ -286,11 +287,14 @@ struct AiLogicData
    u16 predictedMoves[MAX_BATTLERS_COUNT];
    u8 hpPercents[MAX_BATTLERS_COUNT];
    u16 partnerMove;
+    u16 speedStats[MAX_BATTLERS_COUNT]; // Speed stats for all battles, calculated only once, same way as damages
+    u8 moveDmgResult[MAX_BATTLERS_COUNT][MAX_BATTLERS_COUNT][MAX_MON_MOVES]; // MOVE_POWER defines for GetMoveDamageResult ; attacker, target, moveIndex
    s32 simulatedDmg[MAX_BATTLERS_COUNT][MAX_BATTLERS_COUNT][MAX_MON_MOVES]; // attacker, target, moveIndex
    u8 effectiveness[MAX_BATTLERS_COUNT][MAX_BATTLERS_COUNT][MAX_MON_MOVES]; // attacker, target, moveIndex
    u8 moveLimitations[MAX_BATTLERS_COUNT];
    bool8 shouldSwitchMon; // Because all available moves have no/little effect. Each bit per battler.
    u8 monToSwitchId[MAX_BATTLERS_COUNT]; // ID of the mon to switch.
+    bool8 weatherHasEffect; // The same as WEATHER_HAS_EFFECT. Stored here, so it's called only once.
 };

 struct AI_ThinkingStruct
@ -298,7 +302,7 @@ struct AI_ThinkingStruct
    u8 aiState;
    u8 movesetIndex;
    u16 moveConsidered;
-    s8 score[MAX_MON_MOVES];
+    s32 score[MAX_MON_MOVES];
    u32 funcResult;
    u32 aiFlags;
    u8 aiAction;
@ -640,7 +644,7 @@ struct BattleStruct
    u16 hpBefore[MAX_BATTLERS_COUNT]; // Hp of battlers before using a move. For Berserk
    bool8 spriteIgnore0Hp;
    struct Illusion illusion[MAX_BATTLERS_COUNT];
-    s8 aiFinalScore[MAX_BATTLERS_COUNT][MAX_BATTLERS_COUNT][MAX_MON_MOVES]; // AI, target, moves to make debugging easier
+    s32 aiFinalScore[MAX_BATTLERS_COUNT][MAX_BATTLERS_COUNT][MAX_MON_MOVES]; // AI, target, moves to make debugging easier
    u8 aiMoveOrAction[MAX_BATTLERS_COUNT];
    u8 aiChosenTarget[MAX_BATTLERS_COUNT];
    u8 soulheartBattlerId;
--- a/include/battle_ai_main.h
+++ b/include/battle_ai_main.h
@ -19,15 +19,15 @@
    return score;                   \
 }

-u8 ComputeBattleAiScores(u8 battler);
+u32 ComputeBattleAiScores(u32 battler);
 void BattleAI_SetupItems(void);
 void BattleAI_SetupFlags(void);
 void BattleAI_SetupAIData(u8 defaultScoreMoves, u32 battler);
-u8 BattleAI_ChooseMoveOrAction(void);
+u32 BattleAI_ChooseMoveOrAction(void);
 void Ai_InitPartyStruct(void);
 void Ai_UpdateSwitchInData(u32 battler);
 void Ai_UpdateFaintData(u32 battler);
-void SetAiLogicDataForTurn(void);
+void SetAiLogicDataForTurn(struct AiLogicData *aiData);

 extern u8 sBattler_AI;

--- a/include/battle_ai_util.h
+++ b/include/battle_ai_util.h
@ -7,184 +7,186 @@

 #define FOE(battler) ((BATTLE_OPPOSITE(battler)) & BIT_SIDE)

-bool32 AI_RandLessThan(u8 val);
-void RecordLastUsedMoveByTarget(void);
+#define AI_STRIKES_FIRST(battlerAi, battlerDef, move)((AI_WhoStrikesFirst(battlerAi, battlerDef, move) == AI_IS_FASTER))
+
+bool32 AI_RandLessThan(u32 val);
 bool32 IsAiVsAiBattle(void);
 bool32 BattlerHasAi(u32 battlerId);
 bool32 IsAiBattlerAware(u32 battlerId);
-void ClearBattlerMoveHistory(u8 battlerId);
+void ClearBattlerMoveHistory(u32 battlerId);
 void RecordLastUsedMoveBy(u32 battlerId, u32 move);
 void RecordAllMoves(u32 battler);
-void RecordKnownMove(u8 battlerId, u32 move);
-void RecordAbilityBattle(u8 battlerId, u16 abilityId);
-void ClearBattlerAbilityHistory(u8 battlerId);
-void RecordItemEffectBattle(u8 battlerId, u8 itemEffect);
-void ClearBattlerItemEffectHistory(u8 battlerId);
-void SaveBattlerData(u8 battlerId);
-void SetBattlerData(u8 battlerId);
-void RestoreBattlerData(u8 battlerId);
-u16 GetAIChosenMove(u8 battlerId);
-
-bool32 WillAIStrikeFirst(void);
+void RecordKnownMove(u32 battlerId, u32 move);
+void RecordAbilityBattle(u32 battlerId, u32 abilityId);
+void ClearBattlerAbilityHistory(u32 battlerId);
+void RecordItemEffectBattle(u32 battlerId, u32 itemEffect);
+void ClearBattlerItemEffectHistory(u32 battlerId);
+void SaveBattlerData(u32 battlerId);
+void SetBattlerData(u32 battlerId);
+void RestoreBattlerData(u32 battlerId);
+u32 GetAIChosenMove(u32 battlerId);
 u32 GetTotalBaseStat(u32 species);
 bool32 IsTruantMonVulnerable(u32 battlerAI, u32 opposingBattler);
-bool32 AtMaxHp(u8 battler);
-u32 GetHealthPercentage(u8 battler);
-bool32 IsBattlerTrapped(u8 battler, bool8 switching);
-u8 AI_WhoStrikesFirst(u8 battlerAI, u8 battler2, u16 consideredMove);
-bool32 CanTargetFaintAi(u8 battlerDef, u8 battlerAtk);
-bool32 CanMoveFaintBattler(u16 move, u8 battlerDef, u8 battlerAtk, u8 nHits);
-bool32 CanTargetFaintAiWithMod(u8 battlerDef, u8 battlerAtk, s32 hpMod, s32 dmgMod);
+bool32 AtMaxHp(u32 battler);
+u32 GetHealthPercentage(u32 battler);
+bool32 IsBattlerTrapped(u32 battler, bool32 switching);
+u32 AI_WhoStrikesFirst(u32 battlerAI, u32 battler2, u32 moveConsidered);
+bool32 CanTargetFaintAi(u32 battlerDef, u32 battlerAtk);
+bool32 CanTargetMoveFaintAi(u32 move, u32 battlerDef, u32 battlerAtk, u32 nHits);
+bool32 CanTargetFaintAiWithMod(u32 battlerDef, u32 battlerAtk, s32 hpMod, s32 dmgMod);
 s32 AI_GetAbility(u32 battlerId);
-u16 AI_GetHoldEffect(u32 battlerId);
-u32 AI_GetMoveAccuracy(u8 battlerAtk, u8 battlerDef, u16 move);
-bool32 DoesBattlerIgnoreAbilityChecks(u16 atkAbility, u16 move);
-bool32 AI_WeatherHasEffect(void);
-bool32 CanAIFaintTarget(u8 battlerAtk, u8 battlerDef, u8 numHits);
-bool32 CanIndexMoveFaintTarget(u8 battlerAtk, u8 battlerDef, u8 index, u8 numHits);
-bool32 AI_IsTerrainAffected(u8 battlerId, u32 flags);
-bool32 AI_IsBattlerGrounded(u8 battlerId);
-bool32 HasDamagingMove(u8 battlerId);
-bool32 HasDamagingMoveOfType(u8 battlerId, u8 type);
-u32 GetBattlerSecondaryDamage(u8 battlerId);
-bool32 BattlerWillFaintFromWeather(u8 battler, u16 ability);
-bool32 BattlerWillFaintFromSecondaryDamage(u8 battler, u16 ability);
-bool32 ShouldTryOHKO(u8 battlerAtk, u8 battlerDef, u16 atkAbility, u16 defAbility, u16 move);
-bool32 ShouldUseRecoilMove(u8 battlerAtk, u8 battlerDef, u32 recoilDmg, u8 moveIndex);
-u16 GetBattlerSideSpeedAverage(u8 battler);
-bool32 ShouldAbsorb(u8 battlerAtk, u8 battlerDef, u16 move, s32 damage);
-bool32 ShouldRecover(u8 battlerAtk, u8 battlerDef, u16 move, u8 healPercent);
-bool32 ShouldSetScreen(u8 battlerAtk, u8 battlerDef, u16 moveEffect);
-bool32 ShouldPivot(u8 battlerAtk, u8 battlerDef, u16 defAbility, u16 move, u8 moveIndex);
-bool32 IsRecycleEncouragedItem(u16 item);
-bool32 ShouldRestoreHpBerry(u8 battlerAtk, u16 item);
-bool32 IsStatBoostingBerry(u16 item);
-bool32 CanKnockOffItem(u8 battler, u16 item);
-bool32 IsAbilityOfRating(u16 ability, s8 rating);
-s8 GetAbilityRating(u16 ability);
+u32 AI_GetHoldEffect(u32 battlerId);
+u32 AI_GetMoveAccuracy(u32 battlerAtk, u32 battlerDef, u32 move);
+bool32 DoesBattlerIgnoreAbilityChecks(u32 atkAbility, u32 move);
+u32 AI_GetWeather(struct AiLogicData *aiData);
+bool32 CanAIFaintTarget(u32 battlerAtk, u32 battlerDef, u32 numHits);
+bool32 CanIndexMoveFaintTarget(u32 battlerAtk, u32 battlerDef, u32 index, u32 numHits);
+bool32 AI_IsTerrainAffected(u32 battlerId, u32 flags);
+bool32 AI_IsBattlerGrounded(u32 battlerId);
+bool32 HasDamagingMove(u32 battlerId);
+bool32 HasDamagingMoveOfType(u32 battlerId, u32 type);
+u32 GetBattlerSecondaryDamage(u32 battlerId);
+bool32 BattlerWillFaintFromWeather(u32 battler, u32 ability);
+bool32 BattlerWillFaintFromSecondaryDamage(u32 battler, u32 ability);
+bool32 ShouldTryOHKO(u32 battlerAtk, u32 battlerDef, u32 atkAbility, u32 defAbility, u32 move);
+bool32 ShouldUseRecoilMove(u32 battlerAtk, u32 battlerDef, u32 recoilDmg, u32 moveIndex);
+u32 GetBattlerSideSpeedAverage(u32 battler);
+bool32 ShouldAbsorb(u32 battlerAtk, u32 battlerDef, u32 move, s32 damage);
+bool32 ShouldRecover(u32 battlerAtk, u32 battlerDef, u32 move, u32 healPercent);
+bool32 ShouldSetScreen(u32 battlerAtk, u32 battlerDef, u32 moveEffect);
+bool32 ShouldPivot(u32 battlerAtk, u32 battlerDef, u32 defAbility, u32 move, u32 moveIndex);
+bool32 IsRecycleEncouragedItem(u32 item);
+bool32 ShouldRestoreHpBerry(u32 battlerAtk, u32 item);
+bool32 IsStatBoostingBerry(u32 item);
+bool32 CanKnockOffItem(u32 battler, u32 item);
+bool32 IsAbilityOfRating(u32 ability, s8 rating);
+s8 GetAbilityRating(u32 ability);
 bool32 AI_IsAbilityOnSide(u32 battlerId, u32 ability);
-bool32 AI_MoveMakesContact(u32 ability, u32 holdEffect, u16 move);
-u32 AI_GetBattlerMoveTargetType(u8 battlerId, u16 move);
-bool32 ShouldUseZMove(u8 activeId, u8 targetId, u16 chosenMove);
+bool32 AI_MoveMakesContact(u32 ability, u32 holdEffect, u32 move);
+u32 AI_GetBattlerMoveTargetType(u32 battlerId, u32 move);
+bool32 ShouldUseZMove(u32 battlerAtk, u32 battlerDef, u32 chosenMove);

 // stat stage checks
-bool32 AnyStatIsRaised(u8 battlerId);
-bool32 ShouldLowerStat(u8 battler, u16 battlerAbility, u8 stat);
-bool32 BattlerStatCanRise(u8 battler, u16 battlerAbility, u8 stat);
-bool32 AreBattlersStatsMaxed(u8 battler);
-bool32 BattlerHasAnyStatRaised(u8 battlerId);
-u32 CountPositiveStatStages(u8 battlerId);
-u32 CountNegativeStatStages(u8 battlerId);
-bool32 ShouldLowerAttack(u8 battlerAtk, u8 battlerDef, u16 defAbility);
-bool32 ShouldLowerDefense(u8 battlerAtk, u8 battlerDef, u16 defAbility);
-bool32 ShouldLowerSpeed(u8 battlerAtk, u8 battlerDef, u16 defAbility);
-bool32 ShouldLowerSpAtk(u8 battlerAtk, u8 battlerDef, u16 defAbility);
-bool32 ShouldLowerSpDef(u8 battlerAtk, u8 battlerDef, u16 defAbility);
-bool32 ShouldLowerAccuracy(u8 battlerAtk, u8 battlerDef, u16 defAbility);
-bool32 ShouldLowerEvasion(u8 battlerAtk, u8 battlerDef, u16 defAbility);
+bool32 AnyStatIsRaised(u32 battlerId);
+bool32 ShouldLowerStat(u32 battler, u32 battlerAbility, u32 stat);
+bool32 BattlerStatCanRise(u32 battler, u32 battlerAbility, u32 stat);
+bool32 AreBattlersStatsMaxed(u32 battler);
+bool32 BattlerHasAnyStatRaised(u32 battlerId);
+u32 CountPositiveStatStages(u32 battlerId);
+u32 CountNegativeStatStages(u32 battlerId);
+bool32 ShouldLowerAttack(u32 battlerAtk, u32 battlerDef, u32 defAbility);
+bool32 ShouldLowerDefense(u32 battlerAtk, u32 battlerDef, u32 defAbility);
+bool32 ShouldLowerSpeed(u32 battlerAtk, u32 battlerDef, u32 defAbility);
+bool32 ShouldLowerSpAtk(u32 battlerAtk, u32 battlerDef, u32 defAbility);
+bool32 ShouldLowerSpDef(u32 battlerAtk, u32 battlerDef, u32 defAbility);
+bool32 ShouldLowerAccuracy(u32 battlerAtk, u32 battlerDef, u32 defAbility);
+bool32 ShouldLowerEvasion(u32 battlerAtk, u32 battlerDef, u32 defAbility);

 // move checks
-bool32 IsAffectedByPowder(u8 battler, u16 ability, u16 holdEffect);
+bool32 IsAffectedByPowder(u32 battler, u32 ability, u32 holdEffect);
 bool32 MovesWithSplitUnusable(u32 attacker, u32 target, u32 split);
-s32 AI_CalcDamage(u16 move, u8 battlerAtk, u8 battlerDef, u8 *effectiveness, bool32 considerZPower);
+s32 AI_CalcDamageSaveBattlers(u32 move, u32 battlerAtk, u32 battlerDef, u8 *typeEffectiveness, bool32 considerZPower);
+s32 AI_CalcDamage(u32 move, u32 battlerAtk, u32 battlerDef, u8 *typeEffectiveness, bool32 considerZPower, u32 weather);
 u32 GetNoOfHitsToKO(u32 dmg, s32 hp);
-u8 GetMoveDamageResult(u16 move);
-u32 GetCurrDamageHpPercent(u8 battlerAtk, u8 battlerDef);
-uq4_12_t AI_GetTypeEffectiveness(u16 move, u8 battlerAtk, u8 battlerDef);
-u32 AI_GetMoveEffectiveness(u16 move, u8 battlerAtk, u8 battlerDef);
+void SetMoveDamageResult(u32 battlerAtk, u16 *moves);
+u32 GetMoveDamageResult(u32 battlerAtk, u32 battlerDef, u32 moveIndex);
+u32 GetCurrDamageHpPercent(u32 battlerAtk, u32 battlerDef);
+uq4_12_t AI_GetTypeEffectiveness(u32 move, u32 battlerAtk, u32 battlerDef);
+u32 AI_GetMoveEffectiveness(u32 move, u32 battlerAtk, u32 battlerDef);
 u16 *GetMovesArray(u32 battler);
-bool32 IsConfusionMoveEffect(u16 moveEffect);
+bool32 IsConfusionMoveEffect(u32 moveEffect);
 bool32 HasMove(u32 battlerId, u32 move);
 bool32 HasOnlyMovesWithSplit(u32 battlerId, u32 split, bool32 onlyOffensive);
 bool32 HasMoveWithSplit(u32 battler, u32 split);
-bool32 HasMoveWithType(u32 battler, u8 type);
-bool32 HasMoveWithTypeAndSplit(u32 battler, u8 type, u8 split);
-bool32 HasMoveEffect(u32 battlerId, u16 moveEffect);
-bool32 HasMoveWithLowAccuracy(u8, u8, u8, bool32, u16, u16, u16, u16);
-bool32 IsAromaVeilProtectedMove(u16 move);
-bool32 IsNonVolatileStatusMoveEffect(u16 moveEffect);
-bool32 IsStatLoweringMoveEffect(u16 moveEffect);
-bool32 IsMoveRedirectionPrevented(u16 move, u16 atkAbility);
-bool32 IsMoveEncouragedToHit(u8 battlerAtk, u8 battlerDef, u16 move);
-bool32 IsHazardMoveEffect(u16 moveEffect);
-bool32 MoveCallsOtherMove(u16 move);
-bool32 MoveRequiresRecharging(u16 move);
-bool32 IsEncoreEncouragedEffect(u16 moveEffect);
-void ProtectChecks(u8 battlerAtk, u8 battlerDef, u16 move, u16 predictedMove, s16 *score);
-bool32 ShouldSetSandstorm(u8 battler, u16 ability, u16 holdEffect);
-bool32 ShouldSetHail(u8 battler, u16 ability, u16 holdEffect);
-bool32 ShouldSetSnow(u8 battler, u16 ability, u16 holdEffect);
-bool32 ShouldSetRain(u8 battlerAtk, u16 ability, u16 holdEffect);
-bool32 ShouldSetSun(u8 battlerAtk, u16 atkAbility, u16 holdEffect);
-bool32 HasSleepMoveWithLowAccuracy(u8 battlerAtk, u8 battlerDef);
-bool32 IsHealingMoveEffect(u16 effect);
+bool32 HasMoveWithType(u32 battler, u32 type);
+bool32 HasMoveWithTypeAndSplit(u32 battler, u32 type, u32 split);
+bool32 HasMoveEffect(u32 battlerId, u32 moveEffect);
+bool32 HasMoveWithLowAccuracy(u32 battlerAtk, u32 battlerDef, u32 accCheck, bool32 ignoreStatus, u32 atkAbility, u32 defAbility, u32 atkHoldEffect, u32 defHoldEffect);
+bool32 IsAromaVeilProtectedMove(u32 move);
+bool32 IsNonVolatileStatusMoveEffect(u32 moveEffect);
+bool32 IsStatLoweringMoveEffect(u32 moveEffect);
+bool32 IsMoveRedirectionPrevented(u32 move, u32 atkAbility);
+bool32 IsMoveEncouragedToHit(u32 battlerAtk, u32 battlerDef, u32 move);
+bool32 IsHazardMoveEffect(u32 moveEffect);
+bool32 MoveCallsOtherMove(u32 move);
+bool32 MoveRequiresRecharging(u32 move);
+bool32 IsEncoreEncouragedEffect(u32 moveEffect);
+void ProtectChecks(u32 battlerAtk, u32 battlerDef, u32 move, u32 predictedMove, s32 *score);
+bool32 ShouldSetSandstorm(u32 battler, u32 ability, u32 holdEffect);
+bool32 ShouldSetHail(u32 battler, u32 ability, u32 holdEffect);
+bool32 ShouldSetSnow(u32 battler, u32 ability, u32 holdEffect);
+bool32 ShouldSetRain(u32 battlerAtk, u32 ability, u32 holdEffect);
+bool32 ShouldSetSun(u32 battlerAtk, u32 atkAbility, u32 holdEffect);
+bool32 HasSleepMoveWithLowAccuracy(u32 battlerAtk, u32 battlerDef);
+bool32 IsHealingMoveEffect(u32 effect);
 bool32 HasHealingEffect(u32 battler);
-bool32 IsTrappingMoveEffect(u16 effect);
-bool32 HasTrappingMoveEffect(u8 battler);
-bool32 ShouldFakeOut(u8 battlerAtk, u8 battlerDef, u16 move);
-bool32 HasThawingMove(u8 battler);
-bool32 IsStatRaisingEffect(u16 effect);
-bool32 IsStatLoweringEffect(u16 effect);
-bool32 IsStatRaisingEffect(u16 effect);
-bool32 IsAttackBoostMoveEffect(u16 effect);
-bool32 IsUngroundingEffect(u16 effect);
-bool32 IsSemiInvulnerable(u8 battlerDef, u16 move);
-bool32 HasSoundMove(u8 battler);
-bool32 HasHighCritRatioMove(u8 battler);
-bool32 HasMagicCoatAffectedMove(u8 battler);
-bool32 HasSnatchAffectedMove(u8 battler);
+bool32 IsTrappingMoveEffect(u32 effect);
+bool32 HasTrappingMoveEffect(u32 battler);
+bool32 ShouldFakeOut(u32 battlerAtk, u32 battlerDef, u32 move);
+bool32 HasThawingMove(u32 battler);
+bool32 IsStatRaisingEffect(u32 effect);
+bool32 IsStatLoweringEffect(u32 effect);
+bool32 IsStatRaisingEffect(u32 effect);
+bool32 IsAttackBoostMoveEffect(u32 effect);
+bool32 IsUngroundingEffect(u32 effect);
+bool32 IsSemiInvulnerable(u32 battlerDef, u32 move);
+bool32 HasSoundMove(u32 battler);
+bool32 HasHighCritRatioMove(u32 battler);
+bool32 HasMagicCoatAffectedMove(u32 battler);
+bool32 HasSnatchAffectedMove(u32 battler);

 // status checks
-bool32 AI_CanBeBurned(u8 battler, u16 ability);
-bool32 AI_CanGetFrostbite(u8 battler, u16 ability);
-bool32 AI_CanBeConfused(u8 battler, u16 ability);
-bool32 AI_CanSleep(u8 battler, u16 ability);
-bool32 IsBattlerIncapacitated(u8 battler, u16 ability);
-bool32 AI_CanPutToSleep(u8 battlerAtk, u8 battlerDef, u16 defAbility, u16 move, u16 partnerMove);
-bool32 ShouldPoisonSelf(u8 battler, u16 ability);
-bool32 AI_CanPoison(u8 battlerAtk, u8 battlerDef, u16 defAbility, u16 move, u16 partnerMove);
-bool32 AI_CanParalyze(u8 battlerAtk, u8 battlerDef, u16 defAbility, u16 move, u16 partnerMove);
-bool32 AI_CanConfuse(u8 battlerAtk, u8 battlerDef, u16 defAbility, u8 battlerAtkPartner, u16 move, u16 partnerMove);
-bool32 ShouldBurnSelf(u8 battler, u16 ability);
-bool32 AI_CanBurn(u8 battlerAtk, u8 battlerDef, u16 defAbility, u8 battlerAtkPartner, u16 move, u16 partnerMove);
-bool32 AI_CanGiveFrostbite(u8 battlerAtk, u8 battlerDef, u16 defAbility, u8 battlerAtkPartner, u16 move, u16 partnerMove);
-bool32 AI_CanBeInfatuated(u8 battlerAtk, u8 battlerDef, u16 defAbility);
-bool32 AnyPartyMemberStatused(u8 battlerId, bool32 checkSoundproof);
-u32 ShouldTryToFlinch(u8 battlerAtk, u8 battlerDef, u16 atkAbility, u16 defAbility, u16 move);
-bool32 ShouldTrap(u8 battlerAtk, u8 battlerDef, u16 move);
-bool32 IsWakeupTurn(u8 battler);
-bool32 AI_IsBattlerAsleepOrComatose(u8 battlerId);
+bool32 AI_CanBeBurned(u32 battler, u32 ability);
+bool32 AI_CanGetFrostbite(u32 battler, u32 ability);
+bool32 AI_CanBeConfused(u32 battler, u32 ability);
+bool32 AI_CanSleep(u32 battler, u32 ability);
+bool32 IsBattlerIncapacitated(u32 battler, u32 ability);
+bool32 AI_CanPutToSleep(u32 battlerAtk, u32 battlerDef, u32 defAbility, u32 move, u32 partnerMove);
+bool32 ShouldPoisonSelf(u32 battler, u32 ability);
+bool32 AI_CanPoison(u32 battlerAtk, u32 battlerDef, u32 defAbility, u32 move, u32 partnerMove);
+bool32 AI_CanParalyze(u32 battlerAtk, u32 battlerDef, u32 defAbility, u32 move, u32 partnerMove);
+bool32 AI_CanConfuse(u32 battlerAtk, u32 battlerDef, u32 defAbility, u32 battlerAtkPartner, u32 move, u32 partnerMove);
+bool32 ShouldBurnSelf(u32 battler, u32 ability);
+bool32 AI_CanBurn(u32 battlerAtk, u32 battlerDef, u32 defAbility, u32 battlerAtkPartner, u32 move, u32 partnerMove);
+bool32 AI_CanGiveFrostbite(u32 battlerAtk, u32 battlerDef, u32 defAbility, u32 battlerAtkPartner, u32 move, u32 partnerMove);
+bool32 AI_CanBeInfatuated(u32 battlerAtk, u32 battlerDef, u32 defAbility);
+bool32 AnyPartyMemberStatused(u32 battlerId, bool32 checkSoundproof);
+u32 ShouldTryToFlinch(u32 battlerAtk, u32 battlerDef, u32 atkAbility, u32 defAbility, u32 move);
+bool32 ShouldTrap(u32 battlerAtk, u32 battlerDef, u32 move);
+bool32 IsWakeupTurn(u32 battler);
+bool32 AI_IsBattlerAsleepOrComatose(u32 battlerId);

 // partner logic
-u16 GetAllyChosenMove(u8 battlerId);
-bool32 IsValidDoubleBattle(u8 battlerAtk);
-bool32 IsTargetingPartner(u8 battlerAtk, u8 battlerDef);
-bool32 DoesPartnerHaveSameMoveEffect(u8 battlerAtkPartner, u8 battlerDef, u16 move, u16 partnerMove);
-bool32 PartnerHasSameMoveEffectWithoutTarget(u8 battlerAtkPartner, u16 move, u16 partnerMove);
-bool32 PartnerMoveEffectIsStatusSameTarget(u8 battlerAtkPartner, u8 battlerDef, u16 partnerMove);
-bool32 PartnerMoveEffectIsWeather(u8 battlerAtkPartner, u16 partnerMove);
-bool32 PartnerMoveEffectIsTerrain(u8 battlerAtkPartner, u16 partnerMove);
-bool32 PartnerMoveIs(u8 battlerAtkPartner, u16 partnerMove, u16 moveCheck);
-bool32 PartnerMoveIsSameAsAttacker(u8 battlerAtkPartner, u8 battlerDef, u16 move, u16 partnerMove);
-bool32 PartnerMoveIsSameNoTarget(u8 battlerAtkPartner, u16 move, u16 partnerMove);
-bool32 ShouldUseWishAromatherapy(u8 battlerAtk, u8 battlerDef, u16 move);
+#define IS_TARGETING_PARTNER(battlerAtk, battlerDef)((battlerAtk) == (battlerDef ^ BIT_FLANK))
+u32 GetAllyChosenMove(u32 battlerId);
+bool32 IsValidDoubleBattle(u32 battlerAtk);
+bool32 IsTargetingPartner(u32 battlerAtk, u32 battlerDef);
+bool32 DoesPartnerHaveSameMoveEffect(u32 battlerAtkPartner, u32 battlerDef, u32 move, u32 partnerMove);
+bool32 PartnerHasSameMoveEffectWithoutTarget(u32 battlerAtkPartner, u32 move, u32 partnerMove);
+bool32 PartnerMoveEffectIsStatusSameTarget(u32 battlerAtkPartner, u32 battlerDef, u32 partnerMove);
+bool32 PartnerMoveEffectIsWeather(u32 battlerAtkPartner, u32 partnerMove);
+bool32 PartnerMoveEffectIsTerrain(u32 battlerAtkPartner, u32 partnerMove);
+bool32 PartnerMoveIs(u32 battlerAtkPartner, u32 partnerMove, u32 moveCheck);
+bool32 PartnerMoveIsSameAsAttacker(u32 battlerAtkPartner, u32 battlerDef, u32 move, u32 partnerMove);
+bool32 PartnerMoveIsSameNoTarget(u32 battlerAtkPartner, u32 move, u32 partnerMove);
+bool32 ShouldUseWishAromatherapy(u32 battlerAtk, u32 battlerDef, u32 move);

 // party logic
 struct BattlePokemon *AllocSaveBattleMons(void);
 void FreeRestoreBattleMons(struct BattlePokemon *savedBattleMons);
 s32 AI_CalcPartyMonBestMoveDamage(u32 battlerAtk, u32 battlerDef, struct Pokemon *attackerMon, struct Pokemon *targetMon);
-s32 CountUsablePartyMons(u8 battlerId);
-bool32 IsPartyFullyHealedExceptBattler(u8 battler);
-bool32 PartyHasMoveSplit(u8 battlerId, u8 split);
-bool32 SideHasMoveSplit(u8 battlerId, u8 split);
+s32 CountUsablePartyMons(u32 battlerId);
+bool32 IsPartyFullyHealedExceptBattler(u32 battler);
+bool32 PartyHasMoveSplit(u32 battlerId, u32 split);
+bool32 SideHasMoveSplit(u32 battlerId, u32 split);

 // score increases
-void IncreaseStatUpScore(u8 battlerAtk, u8 battlerDef, u8 statId, s16 *score);
-void IncreasePoisonScore(u8 battlerAtk, u8 battlerDef, u16 move, s16 *score);
-void IncreaseBurnScore(u8 battlerAtk, u8 battlerDef, u16 move, s16 *score);
-void IncreaseParalyzeScore(u8 battlerAtk, u8 battlerDef, u16 move, s16 *score);
-void IncreaseSleepScore(u8 battlerAtk, u8 battlerDef, u16 move, s16 *score);
-void IncreaseConfusionScore(u8 battlerAtk, u8 battlerDef, u16 move, s16 *score);
-void IncreaseFrostbiteScore(u8 battlerAtk, u8 battlerDef, u16 move, s16 *score);
+void IncreaseStatUpScore(u32 battlerAtk, u32 battlerDef, u32 statId, s32 *score);
+void IncreasePoisonScore(u32 battlerAtk, u32 battlerDef, u32 move, s32 *score);
+void IncreaseBurnScore(u32 battlerAtk, u32 battlerDef, u32 move, s32 *score);
+void IncreaseParalyzeScore(u32 battlerAtk, u32 battlerDef, u32 move, s32 *score);
+void IncreaseSleepScore(u32 battlerAtk, u32 battlerDef, u32 move, s32 *score);
+void IncreaseConfusionScore(u32 battlerAtk, u32 battlerDef, u32 move, s32 *score);
+void IncreaseFrostbiteScore(u32 battlerAtk, u32 battlerDef, u32 move, s32 *score);

 #endif //GUARD_BATTLE_AI_UTIL_H
--- a/include/battle_main.h
+++ b/include/battle_main.h
@ -57,17 +57,19 @@ void SwitchInClearSetData(u32 battler);
 void FaintClearSetData(u32 battler);
 void BattleTurnPassed(void);
 u8 IsRunningFromBattleImpossible(u32 battler);
-void SwitchPartyOrder(u8 battlerId);
+void SwitchPartyOrder(u32 battlerId);
 void SwapTurnOrder(u8 id1, u8 id2);
-u32 GetBattlerTotalSpeedStat(u8 battlerId);
+u32 GetBattlerTotalSpeedStatArgs(u32 battler, u32 ability, u32 holdEffect);
+u32 GetBattlerTotalSpeedStat(u32 battler);
 s8 GetChosenMovePriority(u32 battlerId);
 s8 GetMovePriority(u32 battlerId, u16 move);
-u8 GetWhoStrikesFirst(u8 battlerId1, u8 battlerId2, bool8 ignoreChosenMoves);
+u32 GetWhichBattlerFasterArgs(u32 battler1, u32 battler2, bool32 ignoreChosenMoves, u32 ability1, u32 ability2,
+                              u32 holdEffectBattler1, u32 holdEffectBattler2, u32 speedBattler1, u32 speedBattler2, s32 priority1, s32 priority2);
+u32 GetWhichBattlerFaster(u32 battler1, u32 battler2, bool32 ignoreChosenMoves);
 void RunBattleScriptCommands_PopCallbacksStack(void);
 void RunBattleScriptCommands(void);
-bool8 TryRunFromBattle(u8 battlerId);
 void SpecialStatusesClear(void);
-void SetTypeBeforeUsingMove(u16 move, u8 battlerAtk);
+void SetTypeBeforeUsingMove(u32 move, u32 battlerAtk);
 bool32 IsWildMonSmart(void);
 u8 CreateNPCTrainerPartyFromTrainer(struct Pokemon *party, const struct Trainer *trainer, bool32 firstTrainer, u32 battleTypeFlags);
 void ModifyPersonalityForNature(u32 *personality, u32 newNature);
--- a/include/battle_script_commands.h
+++ b/include/battle_script_commands.h
@ -16,8 +16,9 @@ struct StatFractions
    u8 divisor;
 };

-s32 CalcCritChanceStage(u8 battlerAtk, u8 battlerDef, u32 move, bool32 recordAbility);
-s8 GetInverseCritChance(u8 battlerAtk, u8 battlerDef, u32 move);
+s32 CalcCritChanceStageArgs(u32 battlerAtk, u32 battlerDef, u32 move, bool32 recordAbility, u32 abilityAtk, u32 abilityDef, u32 holdEffectAtk);
+s32 CalcCritChanceStage(u32 battlerAtk, u32 battlerDef, u32 move, bool32 recordAbility);
+s32 GetCritHitChance(s32 critChanceIndex);
 u32 GetTotalAccuracy(u32 battlerAtk, u32 battlerDef, u32 move, u32 atkAbility, u32 defAbility, u32 atkHoldEffect, u32 defHoldEffect);
 u8 GetBattlerTurnOrderNum(u8 battlerId);
 bool32 NoAliveMonsForEitherParty(void);
@ -28,8 +29,8 @@ void BattleCreateYesNoCursorAt(u8 cursorPosition);
 void BufferMoveToLearnIntoBattleTextBuff2(void);
 void HandleBattleWindow(u8 xStart, u8 yStart, u8 xEnd, u8 yEnd, u8 flags);
 bool8 UproarWakeUpCheck(u8 battlerId);
-bool32 DoesSubstituteBlockMove(u8 battlerAtk, u8 battlerDef, u32 move);
-bool32 DoesDisguiseBlockMove(u8 battlerAtk, u8 battlerDef, u32 move);
+bool32 DoesSubstituteBlockMove(u32 battlerAtk, u32 battlerDef, u32 move);
+bool32 DoesDisguiseBlockMove(u32 battlerAtk, u32 battlerDef, u32 move);
 bool32 CanPoisonType(u8 battlerAttacker, u8 battlerTarget);
 bool32 CanParalyzeType(u8 battlerAttacker, u8 battlerTarget);
 bool32 CanUseLastResort(u8 battlerId);
@ -47,6 +48,7 @@ u32 GetHighestStatId(u32 battlerId);
 bool32 ProteanTryChangeType(u32 battler, u32 ability, u32 move, u32 moveType);
 bool32 DoSwitchInAbilitiesItems(u32 battlerId);
 u8 GetFirstFaintedPartyIndex(u8 battlerId);
+bool32 IsMoveAffectedByParentalBond(u32 move, u32 battler);

 extern void (* const gBattleScriptingCommandsTable[])(void);
 extern const u8 gBattlePalaceNatureToMoveGroupLikelihood[NUM_NATURES][4];
--- a/include/battle_util.h
+++ b/include/battle_util.h
@ -102,6 +102,7 @@ bool32 IsAffectedByFollowMe(u32 battlerAtk, u32 defSide, u32 move);
 void HandleAction_UseMove(void);
 void HandleAction_Switch(void);
 void HandleAction_UseItem(void);
+bool32 TryRunFromBattle(u32 battler);
 void HandleAction_Run(void);
 void HandleAction_WatchesCarefully(void);
 void HandleAction_SafariZoneBallThrow(void);
@ -116,106 +117,106 @@ u8 GetBattlerForBattleScript(u8 caseId);
 void PressurePPLose(u8 target, u8 attacker, u16 move);
 void PressurePPLoseOnUsingPerishSong(u8 attacker);
 void PressurePPLoseOnUsingImprison(u8 attacker);
-bool32 IsBattlerMarkedForControllerExec(u8 battler);
-void MarkBattlerForControllerExec(u8 battler);
-void MarkBattlerReceivedLinkData(u8 battler);
-void CancelMultiTurnMoves(u8 battler);
-bool8 WasUnableToUseMove(u8 battler);
-void PrepareStringBattle(u16 stringId, u8 battler);
+bool32 IsBattlerMarkedForControllerExec(u32 battler);
+void MarkBattlerForControllerExec(u32 battler);
+void MarkBattlerReceivedLinkData(u32 battler);
+void CancelMultiTurnMoves(u32 battler);
+bool32 WasUnableToUseMove(u32 battler);
+void PrepareStringBattle(u16 stringId, u32 battler);
 void ResetSentPokesToOpponentValue(void);
-void OpponentSwitchInResetSentPokesToOpponentValue(u8 battler);
-void UpdateSentPokesToOpponentValue(u8 battler);
+void OpponentSwitchInResetSentPokesToOpponentValue(u32 battler);
+void UpdateSentPokesToOpponentValue(u32 battler);
 void BattleScriptPush(const u8 *bsPtr);
 void BattleScriptPushCursor(void);
 void BattleScriptPop(void);
 u32 TrySetCantSelectMoveBattleScript(u32 battler);
-u8 CheckMoveLimitations(u8 battler, u8 unusableMoves, u16 check);
+u8 CheckMoveLimitations(u32 battler, u8 unusableMoves, u16 check);
 bool32 AreAllMovesUnusable(u32 battler);
-u8 GetImprisonedMovesCount(u8 battler, u16 move);
+u8 GetImprisonedMovesCount(u32 battler, u16 move);
 u8 DoFieldEndTurnEffects(void);
 s32 GetDrainedBigRootHp(u32 battler, s32 hp);
 u8 DoBattlerEndTurnEffects(void);
-bool8 HandleWishPerishSongOnTurnEnd(void);
-bool8 HandleFaintedMonActions(void);
+bool32 HandleWishPerishSongOnTurnEnd(void);
+bool32 HandleFaintedMonActions(void);
 void TryClearRageAndFuryCutter(void);
 u8 AtkCanceller_UnableToUseMove(u32 moveType);
 void SetAtkCancellerForCalledMove(void);
 u8 AtkCanceller_UnableToUseMove2(void);
-bool8 HasNoMonsToSwitch(u8 battler, u8 r1, u8 r2);
-bool32 TryChangeBattleWeather(u8 battler, u32 weatherEnumId, bool32 viaAbility);
-u8 AbilityBattleEffects(u8 caseID, u8 battler, u16 ability, u8 special, u16 moveArg);
-bool32 TryPrimalReversion(u8 battler);
+bool32 HasNoMonsToSwitch(u32 battler, u8 r1, u8 r2);
+bool32 TryChangeBattleWeather(u32 battler, u32 weatherEnumId, bool32 viaAbility);
+u32 AbilityBattleEffects(u32 caseID, u32 battler, u32 ability, u32 special, u32 moveArg);
+bool32 TryPrimalReversion(u32 battler);
 bool32 IsNeutralizingGasOnField(void);
-u32 GetBattlerAbility(u8 battler);
+u32 GetBattlerAbility(u32 battler);
 u32 IsAbilityOnSide(u32 battler, u32 ability);
 u32 IsAbilityOnOpposingSide(u32 battler, u32 ability);
 u32 IsAbilityOnField(u32 ability);
 u32 IsAbilityOnFieldExcept(u32 battler, u32 ability);
 u32 IsAbilityPreventingEscape(u32 battler);
-bool32 IsBattlerProtected(u8 battler, u16 move);
+bool32 IsBattlerProtected(u32 battler, u32 move);
 bool32 CanBattlerEscape(u32 battler); // no ability check
 void BattleScriptExecute(const u8 *BS_ptr);
 void BattleScriptPushCursorAndCallback(const u8 *BS_ptr);
-u8 ItemBattleEffects(u8 caseID, u8 battler, bool8 moveTurn);
-void ClearFuryCutterDestinyBondGrudge(u8 battler);
+u8 ItemBattleEffects(u8 caseID, u32 battler, bool32 moveTurn);
+void ClearFuryCutterDestinyBondGrudge(u32 battler);
 void HandleAction_RunBattleScript(void);
 u32 SetRandomTarget(u32 battler);
 u32 GetMoveTarget(u16 move, u8 setTarget);
 u8 IsMonDisobedient(void);
-u32 GetBattlerHoldEffect(u8 battler, bool32 checkNegating);
-u32 GetBattlerHoldEffectParam(u8 battler);
-bool32 IsMoveMakingContact(u16 move, u8 battlerAtk);
-bool32 IsBattlerGrounded(u8 battler);
-bool32 IsBattlerAlive(u8 battler);
-u8 GetBattleMonMoveSlot(struct BattlePokemon *battleMon, u16 move);
-u32 GetBattlerWeight(u8 battler);
+u32 GetBattlerHoldEffect(u32 battler, bool32 checkNegating);
+u32 GetBattlerHoldEffectParam(u32 battler);
+bool32 IsMoveMakingContact(u32 move, u32 battlerAtk);
+bool32 IsBattlerGrounded(u32 battler);
+bool32 IsBattlerAlive(u32 battler);
+u32 GetMoveSlot(u16 *moves, u32 move);
+u32 GetBattlerWeight(u32 battler);
 u32 CalcRolloutBasePower(u32 battlerAtk, u32 basePower, u32 rolloutTimer);
 u32 CalcFuryCutterBasePower(u32 basePower, u32 furyCutterCounter);
-s32 CalculateMoveDamage(u16 move, u8 battlerAtk, u8 battlerDef, u8 moveType, s32 fixedBasePower, bool32 isCrit, bool32 randomFactor, bool32 updateFlags);
-s32 CalculateMoveDamageAndEffectiveness(u16 move, u8 battlerAtk, u8 battlerDef, u8 moveType, s32 fixedBasePower, uq4_12_t *typeEffectivenessModifier);
-uq4_12_t CalcTypeEffectivenessMultiplier(u16 move, u8 moveType, u8 battlerAtk, u8 battlerDef, bool32 recordAbilities);
+s32 CalculateMoveDamage(u32 move, u32 battlerAtk, u32 battlerDef, u32 moveType, s32 fixedBasePower, bool32 isCrit, bool32 randomFactor, bool32 updateFlags);
+s32 CalculateMoveDamageVars(u32 move, u32 battlerAtk, u32 battlerDef, u32 moveType, s32 fixedBasePower, uq4_12_t typeEffectivenessModifier,
+                                          u32 weather, bool32 isCrit, u32 holdEffectAtk, u32 holdEffectDef, u32 abilityAtk, u32 abilityDef);
+uq4_12_t CalcTypeEffectivenessMultiplier(u32 move, u32 moveType, u32 battlerAtk, u32 battlerDef, u32 defAbility, bool32 recordAbilities);
 uq4_12_t CalcPartyMonTypeEffectivenessMultiplier(u16 move, u16 speciesDef, u16 abilityDef);
-uq4_12_t GetTypeModifier(u8 atkType, u8 defType);
-s32 GetStealthHazardDamage(u8 hazardType, u8 battler);
+uq4_12_t GetTypeModifier(u32 atkType, u32 defType);
+s32 GetStealthHazardDamage(u8 hazardType, u32 battler);
 s32 GetStealthHazardDamageByTypesAndHP(u8 hazardType, u8 type1, u8 type2, u32 maxHp);
-bool32 CanMegaEvolve(u8 battler);
-bool32 CanUltraBurst(u8 battler);
-bool32 IsBattlerMegaEvolved(u8 battler);
-bool32 IsBattlerPrimalReverted(u8 battler);
-bool32 IsBattlerUltraBursted(u8 battler);
-u16 GetBattleFormChangeTargetSpecies(u8 battler, u16 method);
-bool32 TryBattleFormChange(u8 battler, u16 method);
+bool32 CanMegaEvolve(u32 battler);
+bool32 CanUltraBurst(u32 battler);
+bool32 IsBattlerMegaEvolved(u32 battler);
+bool32 IsBattlerPrimalReverted(u32 battler);
+bool32 IsBattlerUltraBursted(u32 battler);
+u16 GetBattleFormChangeTargetSpecies(u32 battler, u16 method);
+bool32 TryBattleFormChange(u32 battler, u16 method);
 bool32 DoBattlersShareType(u32 battler1, u32 battler2);
-bool32 CanBattlerGetOrLoseItem(u8 battler, u16 itemId);
+bool32 CanBattlerGetOrLoseItem(u32 battler, u16 itemId);
 u32 GetIllusionMonSpecies(u32 battler);
 struct Pokemon *GetIllusionMonPtr(u32 battler);
 void ClearIllusionMon(u32 battler);
 bool32 SetIllusionMon(struct Pokemon *mon, u32 battler);
-bool8 ShouldGetStatBadgeBoost(u16 flagId, u8 battler);
+bool32 ShouldGetStatBadgeBoost(u16 flagId, u32 battler);
 u8 GetBattleMoveSplit(u32 moveId);
 bool32 CanFling(u32 battler);
 bool32 IsTelekinesisBannedSpecies(u16 species);
 bool32 IsHealBlockPreventingMove(u32 battler, u32 move);
 bool32 HasEnoughHpToEatBerry(u32 battler, u32 hpFraction, u32 itemId);
-bool32 IsPartnerMonFromSameTrainer(u8 battler);
-u8 GetSplitBasedOnStats(u8 battler);
-bool32 TestSheerForceFlag(u8 battler, u16 move);
+bool32 IsPartnerMonFromSameTrainer(u32 battler);
+u8 GetSplitBasedOnStats(u32 battler);
+bool32 TestSheerForceFlag(u32 battler, u16 move);
 void TryRestoreHeldItems(void);
-bool32 CanStealItem(u8 battlerStealing, u8 battlerItem, u16 item);
-void TrySaveExchangedItem(u8 battler, u16 stolenItem);
-bool32 IsPartnerMonFromSameTrainer(u8 battler);
-u8 TryHandleSeed(u8 battler, u32 terrainFlag, u8 statId, u16 itemId, bool32 execute);
-bool32 IsBattlerAffectedByHazards(u8 battler, bool32 toxicSpikes);
-void SortBattlersBySpeed(u8 *battlers, bool8 slowToFast);
-bool32 CompareStat(u8 battler, u8 statId, u8 cmpTo, u8 cmpKind);
-bool32 TryRoomService(u8 battler);
-void BufferStatChange(u8 battler, u8 statId, u8 stringId);
-bool32 BlocksPrankster(u16 move, u8 battlerPrankster, u8 battlerDef, bool32 checkTarget);
-u16 GetUsedHeldItem(u8 battler);
-bool32 IsBattlerWeatherAffected(u8 battler, u32 weatherFlags);
-u32 GetBattlerMoveTargetType(u8 battler, u16 move);
-bool32 CanTargetBattler(u8 battlerAtk, u8 battlerDef, u16 move);
-bool8 IsMoveAffectedByParentalBond(u16 move, u8 battler);
+bool32 CanStealItem(u32 battlerStealing, u32 battlerItem, u16 item);
+void TrySaveExchangedItem(u32 battler, u16 stolenItem);
+bool32 IsPartnerMonFromSameTrainer(u32 battler);
+u8 TryHandleSeed(u32 battler, u32 terrainFlag, u8 statId, u16 itemId, bool32 execute);
+bool32 IsBattlerAffectedByHazards(u32 battler, bool32 toxicSpikes);
+void SortBattlersBySpeed(u8 *battlers, bool32 slowToFast);
+bool32 CompareStat(u32 battler, u8 statId, u8 cmpTo, u8 cmpKind);
+bool32 TryRoomService(u32 battler);
+void BufferStatChange(u32 battler, u8 statId, u8 stringId);
+bool32 BlocksPrankster(u16 move, u32 battlerPrankster, u32 battlerDef, bool32 checkTarget);
+u16 GetUsedHeldItem(u32 battler);
+bool32 IsBattlerWeatherAffected(u32 battler, u32 weatherFlags);
+u32 GetBattlerMoveTargetType(u32 battler, u32 move);
+bool32 CanTargetBattler(u32 battlerAtk, u32 battlerDef, u16 move);
 void CopyMonLevelAndBaseStatsToBattleMon(u32 battler, struct Pokemon *mon);
 void CopyMonAbilityAndTypesToBattleMon(u32 battler, struct Pokemon *mon);
 void RecalcBattlerStats(u32 battler, struct Pokemon *mon);
@ -231,21 +232,21 @@ bool32 IsGastroAcidBannedAbility(u16 ability);
 bool32 IsEntrainmentBannedAbilityAttacker(u16 ability);
 bool32 IsEntrainmentTargetOrSimpleBeamBannedAbility(u16 ability);

-bool32 CanSleep(u8 battler);
-bool32 CanBePoisoned(u8 battlerAttacker, u8 battlerTarget);
-bool32 CanBeBurned(u8 battler);
-bool32 CanBeParalyzed(u8 battler);
-bool32 CanBeFrozen(u8 battler);
-bool32 CanGetFrostbite(u8 battler);
-bool32 CanBeConfused(u8 battler);
-bool32 IsBattlerTerrainAffected(u8 battler, u32 terrainFlag);
-u32 GetBattlerFriendshipScore(u8 battler);
-u32 CountBattlerStatIncreases(u8 battler, bool32 countEvasionAcc);
+bool32 CanSleep(u32 battler);
+bool32 CanBePoisoned(u32 battlerAttacker, u32 battlerTarget);
+bool32 CanBeBurned(u32 battler);
+bool32 CanBeParalyzed(u32 battler);
+bool32 CanBeFrozen(u32 battler);
+bool32 CanGetFrostbite(u32 battler);
+bool32 CanBeConfused(u32 battler);
+bool32 IsBattlerTerrainAffected(u32 battler, u32 terrainFlag);
+u32 GetBattlerFriendshipScore(u32 battler);
+u32 CountBattlerStatIncreases(u32 battler, bool32 countEvasionAcc);
 bool32 IsMyceliumMightOnField(void);
-bool8 ChangeTypeBasedOnTerrain(u8 battler);
-void RemoveConfusionStatus(u8 battler);
-u8 GetBattlerGender(u8 battler);
-bool8 AreBattlersOfOppositeGender(u8 battler1, u8 battler2);
-u32 CalcSecondaryEffectChance(u8 battler, u8 secondaryEffectChance);
+bool32 ChangeTypeBasedOnTerrain(u32 battler);
+void RemoveConfusionStatus(u32 battler);
+u8 GetBattlerGender(u32 battler);
+bool32 AreBattlersOfOppositeGender(u32 battler1, u32 battler2);
+u32 CalcSecondaryEffectChance(u32 battler, u8 secondaryEffectChance);

 #endif // GUARD_BATTLE_UTIL_H
--- a/include/item.h
+++ b/include/item.h
@ -63,8 +63,8 @@ bool8 AddPyramidBagItem(u16 itemId, u16 count);
 bool8 RemovePyramidBagItem(u16 itemId, u16 count);
 const u8 *ItemId_GetName(u16 itemId);
 u16 ItemId_GetPrice(u16 itemId);
-u8 ItemId_GetHoldEffect(u16 itemId);
-u8 ItemId_GetHoldEffectParam(u16 itemId);
+u32 ItemId_GetHoldEffect(u32 itemId);
+u32 ItemId_GetHoldEffectParam(u32 itemId);
 const u8 *ItemId_GetDescription(u16 itemId);
 u8 ItemId_GetImportance(u16 itemId);
 u8 ItemId_GetPocket(u16 itemId);
@ -72,7 +72,7 @@ u8 ItemId_GetType(u16 itemId);
 ItemUseFunc ItemId_GetFieldFunc(u16 itemId);
 u8 ItemId_GetBattleUsage(u16 itemId);
 u8 ItemId_GetSecondaryId(u16 itemId);
-u8 ItemId_GetFlingPower(u16 itemId);
+u32 ItemId_GetFlingPower(u32 itemId);
 u32 GetItemStatus1Mask(u16 itemId);
 u32 GetItemStatus2Mask(u16 itemId);

--- a/src/battle_ai_main.c
+++ b/src/battle_ai_main.c
--- a/src/battle_ai_switch_items.c
+++ b/src/battle_ai_switch_items.c
@ -400,7 +400,7 @@ static bool8 ShouldSwitchIfGameStatePrompt(u32 battler)
                && AnyStatIsRaised(battler))
                switchMon = FALSE;
            if (AiExpectsToFaintPlayer(battler)
-                && !WillAIStrikeFirst()
+                && !AI_STRIKES_FIRST(battler, opposingBattler, 0)
                && !AI_OpponentCanFaintAiWithMod(battler, 0))
                switchMon = FALSE;
        }
--- a/src/battle_ai_util.c
+++ b/src/battle_ai_util.c
--- a/src/battle_main.c
+++ b/src/battle_main.c
@ -750,7 +750,7 @@ static void SetAllPlayersBerryData(void)
    {
        s32 numPlayers;
        struct BattleEnigmaBerry *src;
-        u8 battler;
+        u32 battler;

        if (gBattleTypeFlags & BATTLE_TYPE_MULTI)
        {
@ -2267,7 +2267,7 @@ static void EndLinkBattleInSteps(void)
    case 2:
        if (!gPaletteFade.active)
        {
-            u8 battlerCount;
+            u32 battlerCount;

            gMain.anyLinkBattlerHasFrontierPass = RecordedBattle_GetFrontierPassFlag();

@ -3723,7 +3723,7 @@ static void DoBattleIntro(void)
            gBattleStruct->switchInAbilitiesCounter = 0;
            gBattleStruct->switchInItemsCounter = 0;
            gBattleStruct->overworldWeatherDone = FALSE;
-            SetAiLogicDataForTurn(); // get assumed abilities, hold effects, etc of all battlers
+            SetAiLogicDataForTurn(AI_DATA); // get assumed abilities, hold effects, etc of all battlers
            Ai_InitPartyStruct(); // Save mons party counts, and first 2/4 mons on the battlefield.
            gBattleMainFunc = TryDoEventsBeforeFirstTurn;
        }
@ -3770,7 +3770,7 @@ static void TryDoEventsBeforeFirstTurn(void)
        {
            for (j = i + 1; j < gBattlersCount; j++)
            {
-                if (GetWhoStrikesFirst(gBattlerByTurnOrder[i], gBattlerByTurnOrder[j], TRUE) != 0)
+                if (GetWhichBattlerFaster(gBattlerByTurnOrder[i], gBattlerByTurnOrder[j], TRUE) != 0)
                    SwapTurnOrder(i, j);
            }
        }
@ -3856,7 +3856,7 @@ static void TryDoEventsBeforeFirstTurn(void)

    gRandomTurnNumber = Random();

-    SetAiLogicDataForTurn(); // get assumed abilities, hold effects, etc of all battlers
+    SetAiLogicDataForTurn(AI_DATA); // get assumed abilities, hold effects, etc of all battlers

    if (gBattleTypeFlags & BATTLE_TYPE_ARENA)
    {
@ -3948,7 +3948,7 @@ void BattleTurnPassed(void)

    *(&gBattleStruct->absentBattlerFlags) = gAbsentBattlerFlags;
    BattlePutTextOnWindow(gText_EmptyString3, B_WIN_MSG);
-    SetAiLogicDataForTurn(); // get assumed abilities, hold effects, etc of all battlers
+    SetAiLogicDataForTurn(AI_DATA); // get assumed abilities, hold effects, etc of all battlers
    gBattleMainFunc = HandleTurnActionSelectionState;
    gRandomTurnNumber = Random();

@ -4020,11 +4020,10 @@ u8 IsRunningFromBattleImpossible(u32 battler)
    return BATTLE_RUN_SUCCESS;
 }

-void SwitchPartyOrder(u8 battler)
+void SwitchPartyOrder(u32 battler)
 {
    s32 i;
-    u8 partyId1;
-    u8 partyId2;
+    u32 partyId1, partyId2;

    for (i = 0; i < (int)ARRAY_COUNT(gBattlePartyCurrentOrder); i++)
        gBattlePartyCurrentOrder[i] = *(battler * 3 + i + (u8 *)(gBattleStruct->battlerPartyOrders));
@ -4070,7 +4069,7 @@ static void HandleTurnActionSelectionState(void)
    gBattleCommunication[ACTIONS_CONFIRMED_COUNT] = 0;
    for (battler = 0; battler < gBattlersCount; battler++)
    {
-        u8 position = GetBattlerPosition(battler);
+        u32 position = GetBattlerPosition(battler);
        switch (gBattleCommunication[battler])
        {
        case STATE_TURN_START_RECORD: // Recorded battle related action on start of every turn.
@ -4083,7 +4082,7 @@ static void HandleTurnActionSelectionState(void)
            {
                gBattleStruct->aiMoveOrAction[battler] = ComputeBattleAiScores(battler);
            }
-            break;
+            // fallthrough
        case STATE_BEFORE_ACTION_CHOSEN: // Choose an action.
            *(gBattleStruct->monToSwitchIntoId + battler) = PARTY_SIZE;
            if (gBattleTypeFlags & BATTLE_TYPE_MULTI
@ -4597,11 +4596,10 @@ void SwapTurnOrder(u8 id1, u8 id2)
    SWAP(gBattlerByTurnOrder[id1], gBattlerByTurnOrder[id2], temp);
 }

-u32 GetBattlerTotalSpeedStat(u8 battler)
+// For AI, so it doesn't 'cheat' by knowing player's ability
+u32 GetBattlerTotalSpeedStatArgs(u32 battler, u32 ability, u32 holdEffect)
 {
    u32 speed = gBattleMons[battler].speed;
-    u32 ability = GetBattlerAbility(battler);
-    u32 holdEffect = GetBattlerHoldEffect(battler, TRUE);
    u32 highestStat = GetHighestStatId(battler);

    // weather abilities
@ -4668,6 +4666,13 @@ u32 GetBattlerTotalSpeedStat(u8 battler)
    return speed;
 }

+u32 GetBattlerTotalSpeedStat(u32 battler)
+{
+    u32 ability = GetBattlerAbility(battler);
+    u32 holdEffect = GetBattlerHoldEffect(battler, TRUE);
+    return GetBattlerTotalSpeedStatArgs(battler, ability, holdEffect);
+}
+
 s8 GetChosenMovePriority(u32 battler)
 {
    u16 move;
@ -4732,17 +4737,13 @@ s8 GetMovePriority(u32 battler, u16 move)
    return priority;
 }

-u8 GetWhoStrikesFirst(u8 battler1, u8 battler2, bool8 ignoreChosenMoves)
+// Function for AI with variables provided as arguments to speed the computation time
+u32 GetWhichBattlerFasterArgs(u32 battler1, u32 battler2, bool32 ignoreChosenMoves, u32 ability1, u32 ability2,
+                              u32 holdEffectBattler1, u32 holdEffectBattler2, u32 speedBattler1, u32 speedBattler2, s32 priority1, s32 priority2)
 {
-    u8 strikesFirst = 0;
-    u32 speedBattler1 = 0, speedBattler2 = 0;
-    u32 holdEffectBattler1 = 0, holdEffectBattler2 = 0;
-    s8 priority1 = 0, priority2 = 0;
-    u16 ability1 = GetBattlerAbility(battler1), ability2 = GetBattlerAbility(battler2);
+    u32 strikesFirst = 0;

    // Battler 1
-    speedBattler1 = GetBattlerTotalSpeedStat(battler1);
-    holdEffectBattler1 = GetBattlerHoldEffect(battler1, TRUE);
    // Quick Draw
    if (!ignoreChosenMoves && ability1 == ABILITY_QUICK_DRAW && !IS_MOVE_STATUS(gChosenMoveByBattler[battler1]) && Random() % 100 < 30)
        gProtectStructs[battler1].quickDraw = TRUE;
@ -4753,8 +4754,6 @@ u8 GetWhoStrikesFirst(u8 battler1, u8 battler2, bool8 ignoreChosenMoves)
        gProtectStructs[battler1].usedCustapBerry = TRUE;

    // Battler 2
-    speedBattler2 = GetBattlerTotalSpeedStat(battler2);
-    holdEffectBattler2 = GetBattlerHoldEffect(battler2, TRUE);
    // Quick Draw
    if (!ignoreChosenMoves && ability2 == ABILITY_QUICK_DRAW && !IS_MOVE_STATUS(gChosenMoveByBattler[battler2]) && Random() % 100 < 30)
        gProtectStructs[battler2].quickDraw = TRUE;
@ -4764,14 +4763,6 @@ u8 GetWhoStrikesFirst(u8 battler1, u8 battler2, bool8 ignoreChosenMoves)
     || (holdEffectBattler2 == HOLD_EFFECT_CUSTAP_BERRY && HasEnoughHpToEatBerry(battler2, 4, gBattleMons[battler2].item))))
        gProtectStructs[battler2].usedCustapBerry = TRUE;

-    if (!ignoreChosenMoves)
-    {
-        if (gChosenActionByBattler[battler1] == B_ACTION_USE_MOVE)
-            priority1 = GetChosenMovePriority(battler1);
-        if (gChosenActionByBattler[battler2] == B_ACTION_USE_MOVE)
-            priority2 = GetChosenMovePriority(battler2);
-    }
-
    if (priority1 == priority2)
    {
        // QUICK CLAW / CUSTAP - always first
@ -4834,6 +4825,28 @@ u8 GetWhoStrikesFirst(u8 battler1, u8 battler2, bool8 ignoreChosenMoves)
    return strikesFirst;
 }

+u32 GetWhichBattlerFaster(u32 battler1, u32 battler2, bool32 ignoreChosenMoves)
+{
+    s32 priority1 = 0, priority2 = 0;
+    u32 ability1 = GetBattlerAbility(battler1);
+    u32 speedBattler1 = GetBattlerTotalSpeedStat(battler1);
+    u32 holdEffectBattler1 = GetBattlerHoldEffect(battler1, TRUE);
+    u32 speedBattler2 = GetBattlerTotalSpeedStat(battler2);
+    u32 holdEffectBattler2 = GetBattlerHoldEffect(battler2, TRUE);
+    u32 ability2 = GetBattlerAbility(battler2);
+
+    if (!ignoreChosenMoves)
+    {
+        if (gChosenActionByBattler[battler1] == B_ACTION_USE_MOVE)
+            priority1 = GetChosenMovePriority(battler1);
+        if (gChosenActionByBattler[battler2] == B_ACTION_USE_MOVE)
+            priority2 = GetChosenMovePriority(battler2);
+    }
+
+    return GetWhichBattlerFasterArgs(battler1, battler2, ignoreChosenMoves, ability1, ability2,
+                                     holdEffectBattler1, holdEffectBattler2, speedBattler1, speedBattler2, priority1, priority2);
+}
+
 static void SetActionsAndBattlersTurnOrder(void)
 {
    s32 turnOrderId = 0;
@ -4927,7 +4940,7 @@ static void SetActionsAndBattlersTurnOrder(void)
                        && gActionsByTurnOrder[i] != B_ACTION_THROW_BALL
                        && gActionsByTurnOrder[j] != B_ACTION_THROW_BALL)
                    {
-                        if (GetWhoStrikesFirst(battler1, battler2, FALSE))
+                        if (GetWhichBattlerFaster(battler1, battler2, FALSE))
                            SwapTurnOrder(i, j);
                    }
                }
@ -5091,7 +5104,7 @@ static void TryChangeTurnOrder(void)
            if (gActionsByTurnOrder[i] == B_ACTION_USE_MOVE
                && gActionsByTurnOrder[j] == B_ACTION_USE_MOVE)
            {
-                if (GetWhoStrikesFirst(battler1, battler2, FALSE))
+                if (GetWhichBattlerFaster(battler1, battler2, FALSE))
                    SwapTurnOrder(i, j);
            }
        }
@ -5574,7 +5587,7 @@ void RunBattleScriptCommands(void)
        gBattleScriptingCommandsTable[gBattlescriptCurrInstr[0]]();
 }

-void SetTypeBeforeUsingMove(u16 move, u8 battlerAtk)
+void SetTypeBeforeUsingMove(u32 move, u32 battlerAtk)
 {
    u32 moveType, ateType, attackerAbility;
    u16 holdEffect = GetBattlerHoldEffect(battlerAtk, TRUE);
@ -5713,8 +5726,8 @@ void SetTypeBeforeUsingMove(u16 move, u8 battlerAtk)
 //  var8001 - var8007: stat changes
 void SetTotemBoost(void)
 {
-    u8 battler = gSpecialVar_0x8000;
-    u8 i;
+    u32 battler = gSpecialVar_0x8000;
+    u32 i;

    for (i = 0; i < (NUM_BATTLE_STATS - 1); i++)
    {
--- a/src/battle_script_commands.c
+++ b/src/battle_script_commands.c
@ -1753,10 +1753,11 @@ static void Cmd_accuracycheck(void)
 {
    CMD_ARGS(const u8 *failInstr, u16 move);

-    u16 type, move = cmd->move;
-    u16 moveTarget = GetBattlerMoveTargetType(gBattlerAttacker, move);
-    u16 gBattlerAttackerAbility = GetBattlerAbility(gBattlerAttacker);
-    u8 gBattlerAttackerHoldEffect = GetBattlerHoldEffect(gBattlerAttacker, TRUE);
+    u32 type, move = cmd->move;
+    u32 moveTarget = GetBattlerMoveTargetType(gBattlerAttacker, move);
+    u32 abilityAtk = GetBattlerAbility(gBattlerAttacker);
+    u32 abilityDef = GetBattlerAbility(gBattlerTarget);
+    u32 holdEffectAtk = GetBattlerHoldEffect(gBattlerAttacker, TRUE);

    if (move == ACC_CURR_MOVE)
        move = gCurrentMove;
@ -1772,7 +1773,7 @@ static void Cmd_accuracycheck(void)
    }
    else if (gSpecialStatuses[gBattlerAttacker].parentalBondState == PARENTAL_BOND_2ND_HIT
        || (gSpecialStatuses[gBattlerAttacker].multiHitOn
-        && (gBattlerAttackerAbility == ABILITY_SKILL_LINK || gBattlerAttackerHoldEffect == HOLD_EFFECT_LOADED_DICE
+        && (abilityAtk == ABILITY_SKILL_LINK || holdEffectAtk == HOLD_EFFECT_LOADED_DICE
        || !(gBattleMoves[move].effect == EFFECT_TRIPLE_KICK || gBattleMoves[move].effect == EFFECT_POPULATION_BOMB))))
    {
        // No acc checks for second hit of Parental Bond or multi hit moves, except Triple Kick/Triple Axel/Population Bomb
@ -1792,16 +1793,16 @@ static void Cmd_accuracycheck(void)
            gBattlerAttacker,
            gBattlerTarget,
            move,
-            gBattlerAttackerAbility,
-            GetBattlerAbility(gBattlerTarget),
-            gBattlerAttackerHoldEffect,
+            abilityAtk,
+            abilityDef,
+            holdEffectAtk,
            GetBattlerHoldEffect(gBattlerTarget, TRUE)
        );

        if (!RandomPercentage(RNG_ACCURACY, accuracy))
        {
            gMoveResultFlags |= MOVE_RESULT_MISSED;
-            if (gBattlerAttackerHoldEffect == HOLD_EFFECT_BLUNDER_POLICY)
+            if (holdEffectAtk == HOLD_EFFECT_BLUNDER_POLICY)
                gBattleStruct->blunderPolicy = TRUE;    // Only activates from missing through acc/evasion checks

            if (gBattleTypeFlags & BATTLE_TYPE_DOUBLE &&
@ -1811,7 +1812,7 @@ static void Cmd_accuracycheck(void)
                gBattleCommunication[MISS_TYPE] = B_MSG_MISSED;

            if (gBattleMoves[move].power)
-                CalcTypeEffectivenessMultiplier(move, type, gBattlerAttacker, gBattlerTarget, TRUE);
+                CalcTypeEffectivenessMultiplier(move, type, gBattlerAttacker, gBattlerTarget, abilityDef, TRUE);
        }
        JumpIfMoveFailed(7, move);
    }
@ -1908,24 +1909,15 @@ static void Cmd_ppreduce(void)
 #endif // B_CRIT_CHANCE

 #define BENEFITS_FROM_LEEK(battler, holdEffect)((holdEffect == HOLD_EFFECT_LEEK) && (GET_BASE_SPECIES_ID(gBattleMons[battler].species) == SPECIES_FARFETCHD || gBattleMons[battler].species == SPECIES_SIRFETCHD))
-s32 CalcCritChanceStage(u8 battlerAtk, u8 battlerDef, u32 move, bool32 recordAbility)
+s32 CalcCritChanceStageArgs(u32 battlerAtk, u32 battlerDef, u32 move, bool32 recordAbility, u32 abilityAtk, u32 abilityDef, u32 holdEffectAtk)
 {
    s32 critChance = 0;
-    u32 abilityAtk = GetBattlerAbility(gBattlerAttacker);
-    u32 abilityDef = GetBattlerAbility(gBattlerTarget);
-    u32 holdEffectAtk = GetBattlerHoldEffect(battlerAtk, TRUE);

    if (gSideStatuses[battlerDef] & SIDE_STATUS_LUCKY_CHANT
-        || gStatuses3[gBattlerAttacker] & STATUS3_CANT_SCORE_A_CRIT)
+        || gStatuses3[battlerAtk] & STATUS3_CANT_SCORE_A_CRIT)
    {
        critChance = -1;
    }
-    else if (abilityDef == ABILITY_BATTLE_ARMOR || abilityDef == ABILITY_SHELL_ARMOR)
-    {
-        if (recordAbility)
-            RecordAbilityBattle(battlerDef, abilityDef);
-        critChance = -1;
-    }
    else if (gStatuses3[battlerAtk] & STATUS3_LASER_FOCUS
             || gBattleMoves[move].effect == EFFECT_ALWAYS_CRIT
             || (abilityAtk == ABILITY_MERCILESS && gBattleMons[battlerDef].status1 & STATUS1_PSN_ANY)
@ -1935,28 +1927,42 @@ s32 CalcCritChanceStage(u8 battlerAtk, u8 battlerDef, u32 move, bool32 recordAbi
    }
    else
    {
-        critChance  = 2 * ((gBattleMons[gBattlerAttacker].status2 & STATUS2_FOCUS_ENERGY) != 0)
+        critChance  = 2 * ((gBattleMons[battlerAtk].status2 & STATUS2_FOCUS_ENERGY) != 0)
                    + (gBattleMoves[gCurrentMove].highCritRatio)
                    + (holdEffectAtk == HOLD_EFFECT_SCOPE_LENS)
-                    + 2 * (holdEffectAtk == HOLD_EFFECT_LUCKY_PUNCH && gBattleMons[gBattlerAttacker].species == SPECIES_CHANSEY)
+                    + 2 * (holdEffectAtk == HOLD_EFFECT_LUCKY_PUNCH && gBattleMons[battlerAtk].species == SPECIES_CHANSEY)
                    + 2 * BENEFITS_FROM_LEEK(battlerAtk, holdEffectAtk)
                #if B_AFFECTION_MECHANICS == TRUE
-                    + 2 * (GetBattlerFriendshipScore(gBattlerAttacker) >= FRIENDSHIP_200_TO_254)
+                    + 2 * (GetBattlerFriendshipScore(battlerAtk) >= FRIENDSHIP_200_TO_254)
                #endif
                    + (abilityAtk == ABILITY_SUPER_LUCK);

+        if (abilityDef == ABILITY_BATTLE_ARMOR || abilityDef == ABILITY_SHELL_ARMOR)
+        {
+            if (recordAbility && critChance >= 2) // Record ability only if move had at least +1 chance to get a crit.
+                RecordAbilityBattle(battlerDef, abilityDef);
+            critChance = -1;
+        }
+
        if (critChance >= ARRAY_COUNT(sCriticalHitChance))
            critChance = ARRAY_COUNT(sCriticalHitChance) - 1;
    }

    return critChance;
 }
+
+s32 CalcCritChanceStage(u32 battlerAtk, u32 battlerDef, u32 move, bool32 recordAbility)
+{
+    u32 abilityAtk = GetBattlerAbility(gBattlerAttacker);
+    u32 abilityDef = GetBattlerAbility(gBattlerTarget);
+    u32 holdEffectAtk = GetBattlerHoldEffect(battlerAtk, TRUE);
+    return CalcCritChanceStageArgs(battlerAtk, battlerDef, move, recordAbility, abilityAtk, abilityDef, holdEffectAtk);
+}
 #undef BENEFITS_FROM_LEEK

-s8 GetInverseCritChance(u8 battlerAtk, u8 battlerDef, u32 move)
+s32 GetCritHitChance(s32 critChanceIndex)
 {
-    s32 critChanceIndex = CalcCritChanceStage(battlerAtk, battlerDef, move, FALSE);
-    if(critChanceIndex < 0)
+    if (critChanceIndex < 0)
        return -1;
    else
        return sCriticalHitChance[critChanceIndex];
@ -2006,7 +2012,7 @@ static void Cmd_typecalc(void)
    u8 moveType;

    GET_MOVE_TYPE(gCurrentMove, moveType);
-    CalcTypeEffectivenessMultiplier(gCurrentMove, moveType, gBattlerAttacker, gBattlerTarget, TRUE);
+    CalcTypeEffectivenessMultiplier(gCurrentMove, moveType, gBattlerAttacker, gBattlerTarget, GetBattlerAbility(gBattlerTarget), TRUE);

    gBattlescriptCurrInstr = cmd->nextInstr;
 }
@ -5679,6 +5685,7 @@ static void Cmd_moveend(void)
                    if (!gSpecialStatuses[gBattlerAttacker].dancerUsedMove)
                    {
                        gLastMoves[gBattlerAttacker] = gChosenMove;
+                        RecordKnownMove(gBattlerAttacker, gChosenMove);
                        gLastResultingMoves[gBattlerAttacker] = gCurrentMove;
                    }
                }
@ -8197,7 +8204,7 @@ static void RemoveAllTerrains(void)
    }                                                       \
 }

-static bool32 TryDefogClear(u8 battlerAtk, bool32 clear)
+static bool32 TryDefogClear(u32 battlerAtk, bool32 clear)
 {
    s32 i;
    for (i = 0; i < 2; i++)
@ -14703,7 +14710,7 @@ static void Cmd_settypebasedhalvers(void)
        gBattlescriptCurrInstr = cmd->failInstr;
 }

-bool32 DoesSubstituteBlockMove(u8 battlerAtk, u8 battlerDef, u32 move)
+bool32 DoesSubstituteBlockMove(u32 battlerAtk, u32 battlerDef, u32 move)
 {
    if (!(gBattleMons[battlerDef].status2 & STATUS2_SUBSTITUTE))
        return FALSE;
@ -14719,7 +14726,7 @@ bool32 DoesSubstituteBlockMove(u8 battlerAtk, u8 battlerDef, u32 move)
        return TRUE;
 }

-bool32 DoesDisguiseBlockMove(u8 battlerAtk, u8 battlerDef, u32 move)
+bool32 DoesDisguiseBlockMove(u32 battlerAtk, u32 battlerDef, u32 move)
 {
    if (gBattleMons[battlerDef].species != SPECIES_MIMIKYU
        || gBattleMons[battlerDef].status2 & STATUS2_TRANSFORMED
@ -15781,7 +15788,7 @@ static const u16 sParentalBondBannedEffects[] =
    EFFECT_UPROAR,
 };

-bool8 IsMoveAffectedByParentalBond(u16 move, u8 battler)
+bool32 IsMoveAffectedByParentalBond(u32 move, u32 battler)
 {
    if (move != MOVE_NONE && move != MOVE_STRUGGLE
        && gBattleMoves[move].split != SPLIT_STATUS
--- a/src/battle_util.c
+++ b/src/battle_util.c
--- a/src/item.c
+++ b/src/item.c
@ -884,12 +884,12 @@ u16 ItemId_GetPrice(u16 itemId)
    return gItems[SanitizeItemId(itemId)].price;
 }

-u8 ItemId_GetHoldEffect(u16 itemId)
+u32 ItemId_GetHoldEffect(u32 itemId)
 {
    return gItems[SanitizeItemId(itemId)].holdEffect;
 }

-u8 ItemId_GetHoldEffectParam(u16 itemId)
+u32 ItemId_GetHoldEffectParam(u32 itemId)
 {
    return gItems[SanitizeItemId(itemId)].holdEffectParam;
 }
@ -956,7 +956,7 @@ u8 ItemId_GetSecondaryId(u16 itemId)
    return gItems[SanitizeItemId(itemId)].secondaryId;
 }

-u8 ItemId_GetFlingPower(u16 itemId)
+u32 ItemId_GetFlingPower(u32 itemId)
 {
    return gItems[SanitizeItemId(itemId)].flingPower;
 }