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pokeemerald/src/battle_ai_switch_items.c

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#include "global.h"
#include "battle.h"
#include "battle_controllers.h"
#include "abilities.h"
#include "moves.h"
#include "pokemon.h"
#include "species.h"
#include "rng.h"
#include "util.h"
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#include "items.h"
#include "pokemon_item_effects.h"
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extern u8 gActiveBank;
extern u8 gAbsentBankFlags;
extern u32 gBattleTypeFlags;
extern u32 gStatuses3[BATTLE_BANKS_COUNT];
extern struct BattlePokemon gBattleMons[BATTLE_BANKS_COUNT];
extern u16 gBattlePartyID[BATTLE_BANKS_COUNT];
extern u16 gUnknown_02024250[BATTLE_BANKS_COUNT];
extern u8 gUnknown_02024270[BATTLE_BANKS_COUNT];
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extern u16 gDynamicBasePower;
extern u8 gBattleMoveFlags;
extern u8 gCritMultiplier;
extern s32 gBattleMoveDamage;
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extern const struct BattleMove gBattleMoves[];
extern const struct BaseStats gBaseStats[];
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extern const u8 gTypeEffectiveness[];
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extern const u8 * const gItemEffectTable[]; // todo: fix once struct is declared
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// this file's functions
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static bool8 HasSuperEffectiveMoveAgainstOpponents(bool8 noRng);
static bool8 FindMonWithFlagsAndSuperEffective(u8 flags, u8 moduloPercent);
static bool8 ShouldUseItem(void);
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static bool8 ShouldSwitchIfPerishSong(void)
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{
if (gStatuses3[gActiveBank] & STATUS3_PERISH_SONG
&& gDisableStructs[gActiveBank].perishSong1 == 0)
{
*(gBattleStruct->field_294 + gActiveBank) = 6;
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EmitChoiceReturnValue(1, 2, 0);
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return TRUE;
}
return FALSE;
}
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static bool8 ShouldSwitchIfWonderGuard(void)
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{
u8 opposingIdentity;
u8 opposingBank;
u8 moveFlags;
s32 i, j;
s32 firstId;
s32 lastId; // + 1
struct Pokemon *party = NULL;
u16 move;
if (gBattleTypeFlags & BATTLE_TYPE_DOUBLE)
return FALSE;
opposingIdentity = GetBankIdentity(gActiveBank) ^ BIT_SIDE;
if (gBattleMons[GetBankByIdentity(opposingIdentity)].ability != ABILITY_WONDER_GUARD)
return FALSE;
// check if pokemon has a super effective move
for (opposingBank = GetBankByIdentity(opposingIdentity), i = 0; i < 4; i++)
{
move = gBattleMons[gActiveBank].moves[i];
if (move == MOVE_NONE)
continue;
moveFlags = AI_TypeCalc(move, gBattleMons[opposingBank].species, gBattleMons[opposingBank].ability);
if (moveFlags & MOVESTATUS_SUPEREFFECTIVE)
return FALSE;
}
// get party information
if (gBattleTypeFlags & (BATTLE_TYPE_TWO_OPPONENTS | BATTLE_TYPE_x800000))
{
if ((gActiveBank & BIT_MON) == 0)
firstId = 0, lastId = 3;
else
firstId = 3, lastId = 6;
}
else
{
firstId = 0, lastId = 6;
}
if (GetBankSide(gActiveBank) == SIDE_PLAYER)
party = gPlayerParty;
else
party = gEnemyParty;
// find a pokemon in the party that has a super effective move
for (i = firstId; i < lastId; i++)
{
if (GetMonData(&party[i], MON_DATA_HP) == 0)
continue;
if (GetMonData(&party[i], MON_DATA_SPECIES2) == SPECIES_NONE)
continue;
if (GetMonData(&party[i], MON_DATA_SPECIES2) == SPECIES_EGG)
continue;
if (i == gBattlePartyID[gActiveBank])
continue;
GetMonData(&party[i], MON_DATA_SPECIES); // unused return value
GetMonData(&party[i], MON_DATA_ALT_ABILITY); // unused return value
for (opposingBank = GetBankByIdentity(opposingIdentity), j = 0; j < 4; j++)
{
move = GetMonData(&party[i], MON_DATA_MOVE1 + j);
if (move == MOVE_NONE)
continue;
moveFlags = AI_TypeCalc(move, gBattleMons[opposingBank].species, gBattleMons[opposingBank].ability);
if (moveFlags & MOVESTATUS_SUPEREFFECTIVE && Random() % 3 < 2)
{
// we found a mon
*(gBattleStruct->field_294 + gActiveBank) = i;
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EmitChoiceReturnValue(1, 2, 0);
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return TRUE;
}
}
}
return FALSE; // at this point there is not a single pokemon in the party that has a super effective move against a pokemon with wonder guard
}
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static bool8 FindMonThatAbsorbsOpponentsMove(void)
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{
u8 bankIn1, bankIn2;
u8 absorbingTypeAbility;
s32 firstId;
s32 lastId; // + 1
struct Pokemon *party;
s32 i;
if (HasSuperEffectiveMoveAgainstOpponents(TRUE) && Random() % 3 != 0)
return FALSE;
if (gUnknown_02024250[gActiveBank] == 0)
return FALSE;
if (gUnknown_02024250[gActiveBank] == 0xFFFF)
return FALSE;
if (gBattleMoves[gUnknown_02024250[gActiveBank]].power == 0)
return FALSE;
if (gBattleTypeFlags & BATTLE_TYPE_DOUBLE)
{
bankIn1 = gActiveBank;
if (gAbsentBankFlags & gBitTable[GetBankByIdentity(GetBankIdentity(gActiveBank) ^ BIT_MON)])
bankIn2 = gActiveBank;
else
bankIn2 = GetBankByIdentity(GetBankIdentity(gActiveBank) ^ BIT_MON);
}
else
{
bankIn1 = gActiveBank;
bankIn2 = gActiveBank;
}
if (gBattleMoves[gUnknown_02024250[gActiveBank]].type == TYPE_FIRE)
absorbingTypeAbility = ABILITY_FLASH_FIRE;
else if (gBattleMoves[gUnknown_02024250[gActiveBank]].type == TYPE_WATER)
absorbingTypeAbility = ABILITY_WATER_ABSORB;
else if (gBattleMoves[gUnknown_02024250[gActiveBank]].type == TYPE_ELECTRIC)
absorbingTypeAbility = ABILITY_VOLT_ABSORB;
else
return FALSE;
if (gBattleMons[gActiveBank].ability == absorbingTypeAbility)
return FALSE;
if (gBattleTypeFlags & (BATTLE_TYPE_TWO_OPPONENTS | BATTLE_TYPE_x800000))
{
if ((gActiveBank & BIT_MON) == 0)
firstId = 0, lastId = 3;
else
firstId = 3, lastId = 6;
}
else
{
firstId = 0, lastId = 6;
}
if (GetBankSide(gActiveBank) == SIDE_PLAYER)
party = gPlayerParty;
else
party = gEnemyParty;
for (i = firstId; i < lastId; i++)
{
u16 species;
u8 monAbility;
if (GetMonData(&party[i], MON_DATA_HP) == 0)
continue;
if (GetMonData(&party[i], MON_DATA_SPECIES2) == SPECIES_NONE)
continue;
if (GetMonData(&party[i], MON_DATA_SPECIES2) == SPECIES_EGG)
continue;
if (i == gBattlePartyID[bankIn1])
continue;
if (i == gBattlePartyID[bankIn2])
continue;
if (i == *(gBattleStruct->field_5C + bankIn1))
continue;
if (i == *(gBattleStruct->field_5C + bankIn2))
continue;
species = GetMonData(&party[i], MON_DATA_SPECIES);
if (GetMonData(&party[i], MON_DATA_ALT_ABILITY) != 0)
monAbility = gBaseStats[species].ability2;
else
monAbility = gBaseStats[species].ability1;
if (absorbingTypeAbility == monAbility && Random() & 1)
{
// we found a mon
*(gBattleStruct->field_294 + gActiveBank) = i;
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EmitChoiceReturnValue(1, 2, 0);
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return TRUE;
}
}
return FALSE;
}
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static bool8 ShouldSwitchIfNaturalCure(void)
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{
if (!(gBattleMons[gActiveBank].status1 & STATUS_SLEEP))
return FALSE;
if (gBattleMons[gActiveBank].ability != ABILITY_NATURAL_CURE)
return FALSE;
if (gBattleMons[gActiveBank].hp < gBattleMons[gActiveBank].maxHP / 2)
return FALSE;
if ((gUnknown_02024250[gActiveBank] == 0 || gUnknown_02024250[gActiveBank] == 0xFFFF) && Random() & 1)
{
*(gBattleStruct->field_294 + gActiveBank) = 6;
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EmitChoiceReturnValue(1, 2, 0);
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return TRUE;
}
else if (gBattleMoves[gUnknown_02024250[gActiveBank]].power == 0 && Random() & 1)
{
*(gBattleStruct->field_294 + gActiveBank) = 6;
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EmitChoiceReturnValue(1, 2, 0);
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return TRUE;
}
if (FindMonWithFlagsAndSuperEffective(MOVESTATUS_NOTAFFECTED, 1))
return TRUE;
if (FindMonWithFlagsAndSuperEffective(MOVESTATUS_NOTVERYEFFECTIVE, 1))
return TRUE;
if (Random() & 1)
{
*(gBattleStruct->field_294 + gActiveBank) = 6;
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EmitChoiceReturnValue(1, 2, 0);
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return TRUE;
}
return FALSE;
}
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static bool8 HasSuperEffectiveMoveAgainstOpponents(bool8 noRng)
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{
u8 opposingIdentity;
u8 opposingBank;
s32 i;
u8 moveFlags;
u16 move;
opposingIdentity = GetBankIdentity(gActiveBank) ^ BIT_SIDE;
opposingBank = GetBankByIdentity(opposingIdentity);
if (!(gAbsentBankFlags & gBitTable[opposingBank]))
{
for (i = 0; i < 4; i++)
{
move = gBattleMons[gActiveBank].moves[i];
if (move == MOVE_NONE)
continue;
moveFlags = AI_TypeCalc(move, gBattleMons[opposingBank].species, gBattleMons[opposingBank].ability);
if (moveFlags & MOVESTATUS_SUPEREFFECTIVE)
{
if (noRng)
return TRUE;
if (Random() % 10 != 0)
return TRUE;
}
}
}
if (!(gBattleTypeFlags & BATTLE_TYPE_DOUBLE))
return FALSE;
opposingBank = GetBankByIdentity(opposingIdentity ^ BIT_MON);
if (!(gAbsentBankFlags & gBitTable[opposingBank]))
{
for (i = 0; i < 4; i++)
{
move = gBattleMons[gActiveBank].moves[i];
if (move == MOVE_NONE)
continue;
moveFlags = AI_TypeCalc(move, gBattleMons[opposingBank].species, gBattleMons[opposingBank].ability);
if (moveFlags & MOVESTATUS_SUPEREFFECTIVE)
{
if (noRng)
return TRUE;
if (Random() % 10 != 0)
return TRUE;
}
}
}
return FALSE;
}
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static bool8 AreStatsRaised(void)
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{
u8 buffedStatsValue = 0;
s32 i;
for (i = 0; i < BATTLE_STATS_NO; i++)
{
if (gBattleMons[gActiveBank].statStages[i] > 6)
buffedStatsValue += gBattleMons[gActiveBank].statStages[i] - 6;
}
return (buffedStatsValue > 3);
}
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static bool8 FindMonWithFlagsAndSuperEffective(u8 flags, u8 moduloPercent)
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{
u8 bankIn1, bankIn2;
s32 firstId;
s32 lastId; // + 1
struct Pokemon *party;
s32 i, j;
u16 move;
u8 moveFlags;
if (gUnknown_02024250[gActiveBank] == 0)
return FALSE;
if (gUnknown_02024250[gActiveBank] == 0xFFFF)
return FALSE;
if (gUnknown_02024270[gActiveBank] == 0xFF)
return FALSE;
if (gBattleMoves[gUnknown_02024250[gActiveBank]].power == 0)
return FALSE;
if (gBattleTypeFlags & BATTLE_TYPE_DOUBLE)
{
bankIn1 = gActiveBank;
if (gAbsentBankFlags & gBitTable[GetBankByIdentity(GetBankIdentity(gActiveBank) ^ BIT_MON)])
bankIn2 = gActiveBank;
else
bankIn2 = GetBankByIdentity(GetBankIdentity(gActiveBank) ^ BIT_MON);
}
else
{
bankIn1 = gActiveBank;
bankIn2 = gActiveBank;
}
if (gBattleTypeFlags & (BATTLE_TYPE_TWO_OPPONENTS | BATTLE_TYPE_x800000))
{
if ((gActiveBank & BIT_MON) == 0)
firstId = 0, lastId = 3;
else
firstId = 3, lastId = 6;
}
else
{
firstId = 0, lastId = 6;
}
if (GetBankSide(gActiveBank) == SIDE_PLAYER)
party = gPlayerParty;
else
party = gEnemyParty;
for (i = firstId; i < lastId; i++)
{
u16 species;
u8 monAbility;
if (GetMonData(&party[i], MON_DATA_HP) == 0)
continue;
if (GetMonData(&party[i], MON_DATA_SPECIES2) == SPECIES_NONE)
continue;
if (GetMonData(&party[i], MON_DATA_SPECIES2) == SPECIES_EGG)
continue;
if (i == gBattlePartyID[bankIn1])
continue;
if (i == gBattlePartyID[bankIn2])
continue;
if (i == *(gBattleStruct->field_5C + bankIn1))
continue;
if (i == *(gBattleStruct->field_5C + bankIn2))
continue;
species = GetMonData(&party[i], MON_DATA_SPECIES);
if (GetMonData(&party[i], MON_DATA_ALT_ABILITY) != 0)
monAbility = gBaseStats[species].ability2;
else
monAbility = gBaseStats[species].ability1;
moveFlags = AI_TypeCalc(gUnknown_02024250[gActiveBank], species, monAbility);
if (moveFlags & flags)
{
bankIn1 = gUnknown_02024270[gActiveBank];
for (j = 0; j < 4; j++)
{
move = GetMonData(&party[i], MON_DATA_MOVE1 + j);
if (move == 0)
continue;
moveFlags = AI_TypeCalc(move, gBattleMons[bankIn1].species, gBattleMons[bankIn1].ability);
if (moveFlags & MOVESTATUS_SUPEREFFECTIVE && Random() % moduloPercent == 0)
{
*(gBattleStruct->field_294 + gActiveBank) = i;
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EmitChoiceReturnValue(1, 2, 0);
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return TRUE;
}
}
}
}
return FALSE;
}
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static bool8 ShouldSwitch(void)
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{
u8 bankIn1, bankIn2;
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u8 *activeBankPtr; // needed to match
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s32 firstId;
s32 lastId; // + 1
struct Pokemon *party;
s32 i;
s32 availableToSwitch;
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if (gBattleMons[*(activeBankPtr = &gActiveBank)].status2 & (STATUS2_WRAPPED | STATUS2_ESCAPE_PREVENTION))
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return FALSE;
if (gStatuses3[gActiveBank] & STATUS3_ROOTED)
return FALSE;
if (AbilityBattleEffects(ABILITYEFFECT_CHECK_OTHER_SIDE, gActiveBank, ABILITY_SHADOW_TAG, 0, 0))
return FALSE;
if (AbilityBattleEffects(ABILITYEFFECT_CHECK_OTHER_SIDE, gActiveBank, ABILITY_ARENA_TRAP, 0, 0))
return FALSE; // misses the flying or levitate check
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if (AbilityBattleEffects(ABILITYEFFECT_FIELD_SPORT, 0, ABILITY_MAGNET_PULL, 0, 0))
{
if (gBattleMons[gActiveBank].type1 == TYPE_STEEL)
return FALSE;
if (gBattleMons[gActiveBank].type2 == TYPE_STEEL)
return FALSE;
}
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if (gBattleTypeFlags & BATTLE_TYPE_ARENA)
return FALSE;
availableToSwitch = 0;
if (gBattleTypeFlags & BATTLE_TYPE_DOUBLE)
{
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bankIn1 = *activeBankPtr;
if (gAbsentBankFlags & gBitTable[GetBankByIdentity(GetBankIdentity(*activeBankPtr) ^ BIT_MON)])
bankIn2 = *activeBankPtr;
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else
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bankIn2 = GetBankByIdentity(GetBankIdentity(*activeBankPtr) ^ BIT_MON);
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}
else
{
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bankIn1 = *activeBankPtr;
bankIn2 = *activeBankPtr;
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}
if (gBattleTypeFlags & (BATTLE_TYPE_TWO_OPPONENTS | BATTLE_TYPE_x800000))
{
if ((gActiveBank & BIT_MON) == 0)
firstId = 0, lastId = 3;
else
firstId = 3, lastId = 6;
}
else
{
firstId = 0, lastId = 6;
}
if (GetBankSide(gActiveBank) == SIDE_PLAYER)
party = gPlayerParty;
else
party = gEnemyParty;
for (i = firstId; i < lastId; i++)
{
if (GetMonData(&party[i], MON_DATA_HP) == 0)
continue;
if (GetMonData(&party[i], MON_DATA_SPECIES2) == SPECIES_NONE)
continue;
if (GetMonData(&party[i], MON_DATA_SPECIES2) == SPECIES_EGG)
continue;
if (i == gBattlePartyID[bankIn1])
continue;
if (i == gBattlePartyID[bankIn2])
continue;
if (i == *(gBattleStruct->field_5C + bankIn1))
continue;
if (i == *(gBattleStruct->field_5C + bankIn2))
continue;
availableToSwitch++;
}
if (availableToSwitch == 0)
return FALSE;
if (ShouldSwitchIfPerishSong())
return TRUE;
if (ShouldSwitchIfWonderGuard())
return TRUE;
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if (FindMonThatAbsorbsOpponentsMove())
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return TRUE;
if (ShouldSwitchIfNaturalCure())
return TRUE;
if (HasSuperEffectiveMoveAgainstOpponents(FALSE))
return FALSE;
if (AreStatsRaised())
return FALSE;
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if (FindMonWithFlagsAndSuperEffective(MOVESTATUS_NOTAFFECTED, 2)
|| FindMonWithFlagsAndSuperEffective(MOVESTATUS_NOTVERYEFFECTIVE, 3))
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return TRUE;
return FALSE;
}
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void AI_TrySwitchOrUseItem(void)
{
struct Pokemon *party;
u8 bankIn1, bankIn2;
s32 firstId;
s32 lastId; // + 1
u8 bankIdentity = GetBankIdentity(gActiveBank);
if (GetBankSide(gActiveBank) == SIDE_PLAYER)
party = gPlayerParty;
else
party = gEnemyParty;
if (gBattleTypeFlags & BATTLE_TYPE_TRAINER)
{
if (ShouldSwitch())
{
if (*(gBattleStruct->field_294 + gActiveBank) == 6)
{
s32 monToSwitchId = GetMostSuitableMonToSwitchInto();
if (monToSwitchId == 6)
{
if (!(gBattleTypeFlags & BATTLE_TYPE_DOUBLE))
{
bankIn1 = GetBankByIdentity(bankIdentity);
bankIn2 = bankIn1;
}
else
{
bankIn1 = GetBankByIdentity(bankIdentity);
bankIn2 = GetBankByIdentity(bankIdentity ^ BIT_MON);
}
if (gBattleTypeFlags & (BATTLE_TYPE_TWO_OPPONENTS | BATTLE_TYPE_x800000))
{
if ((gActiveBank & BIT_MON) == 0)
firstId = 0, lastId = 3;
else
firstId = 3, lastId = 6;
}
else
{
firstId = 0, lastId = 6;
}
for (monToSwitchId = firstId; monToSwitchId < lastId; monToSwitchId++)
{
if (GetMonData(&party[monToSwitchId], MON_DATA_HP) == 0)
continue;
if (monToSwitchId == gBattlePartyID[bankIn1])
continue;
if (monToSwitchId == gBattlePartyID[bankIn2])
continue;
if (monToSwitchId == *(gBattleStruct->field_5C + bankIn1))
continue;
if (monToSwitchId == *(gBattleStruct->field_5C + bankIn2))
continue;
break;
}
}
*(gBattleStruct->field_294 + gActiveBank) = monToSwitchId;
}
*(gBattleStruct->field_5C + gActiveBank) = *(gBattleStruct->field_294 + gActiveBank);
return;
}
else if (ShouldUseItem())
{
return;
}
}
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EmitChoiceReturnValue(1, 0, (gActiveBank ^ BIT_SIDE) << 8);
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}
#define TYPE_FORESIGHT 0xFE
#define TYPE_ENDTABLE 0xFF
static void ModulateByTypeEffectiveness(u8 atkType, u8 defType1, u8 defType2, u8 *var)
{
s32 i = 0;
while (gTypeEffectiveness[i] != TYPE_ENDTABLE)
{
if (gTypeEffectiveness[i] == TYPE_FORESIGHT)
{
i += 3;
continue;
}
else if (gTypeEffectiveness[i] == atkType)
{
// check type1
if (gTypeEffectiveness[i + 1] == defType1)
*var = (*var * gTypeEffectiveness[i + 2]) / 10;
// check type2
if (gTypeEffectiveness[i + 1] == defType2 && defType1 != defType2)
*var = (*var * gTypeEffectiveness[i + 2]) / 10;
}
i += 3;
}
}
u8 GetMostSuitableMonToSwitchInto(void)
{
u8 opposingBank;
u8 bestDmg; // note : should be changed to u32 for obvious reasons
u8 bestMonId;
u8 bankIn1, bankIn2;
s32 firstId;
s32 lastId; // + 1
struct Pokemon *party;
s32 i, j;
u8 invalidMons;
u16 move;
if (*(gBattleStruct->field_5C + gActiveBank) != 6)
return *(gBattleStruct->field_5C + gActiveBank);
if (gBattleTypeFlags & BATTLE_TYPE_ARENA)
return gBattlePartyID[gActiveBank] + 1;
if (gBattleTypeFlags & BATTLE_TYPE_DOUBLE)
{
bankIn1 = gActiveBank;
if (gAbsentBankFlags & gBitTable[GetBankByIdentity(GetBankIdentity(gActiveBank) ^ BIT_MON)])
bankIn2 = gActiveBank;
else
bankIn2 = GetBankByIdentity(GetBankIdentity(gActiveBank) ^ BIT_MON);
// UB: It considers the opponent only player's side even though it can battle alongside player;
opposingBank = Random() & BIT_MON;
if (gAbsentBankFlags & gBitTable[opposingBank])
opposingBank ^= BIT_MON;
}
else
{
opposingBank = GetBankByIdentity(GetBankIdentity(gActiveBank) ^ BIT_SIDE);
bankIn1 = gActiveBank;
bankIn2 = gActiveBank;
}
if (gBattleTypeFlags & (BATTLE_TYPE_TWO_OPPONENTS | BATTLE_TYPE_x800000))
{
if ((gActiveBank & BIT_MON) == 0)
firstId = 0, lastId = 3;
else
firstId = 3, lastId = 6;
}
else
{
firstId = 0, lastId = 6;
}
if (GetBankSide(gActiveBank) == SIDE_PLAYER)
party = gPlayerParty;
else
party = gEnemyParty;
invalidMons = 0;
while (invalidMons != 0x3F) // all mons are invalid
{
bestDmg = 0;
bestMonId = 6;
// find the mon which type is the most suitable offensively
for (i = firstId; i < lastId; i++)
{
u16 species = GetMonData(&party[i], MON_DATA_SPECIES);
if (species != SPECIES_NONE
&& GetMonData(&party[i], MON_DATA_HP) != 0
&& !(gBitTable[i] & invalidMons)
&& gBattlePartyID[bankIn1] != i
&& gBattlePartyID[bankIn2] != i
&& i != *(gBattleStruct->field_5C + bankIn1)
&& i != *(gBattleStruct->field_5C + bankIn2))
{
u8 type1 = gBaseStats[species].type1;
u8 type2 = gBaseStats[species].type2;
u8 typeDmg = 10;
ModulateByTypeEffectiveness(gBattleMons[opposingBank].type1, type1, type2, &typeDmg);
ModulateByTypeEffectiveness(gBattleMons[opposingBank].type2, type1, type2, &typeDmg);
if (bestDmg < typeDmg)
{
bestDmg = typeDmg;
bestMonId = i;
}
}
else
{
invalidMons |= gBitTable[i];
}
}
// ok, we know the mon has the right typing but does it have at least one super effective move?
if (bestMonId != 6)
{
for (i = 0; i < 4; i++)
{
move = GetMonData(&party[bestMonId], MON_DATA_MOVE1 + i);
if (move != MOVE_NONE && TypeCalc(move, gActiveBank, opposingBank) & MOVESTATUS_SUPEREFFECTIVE)
break;
}
if (i != 4)
return bestMonId; // has both the typing and at least one super effective move
invalidMons |= gBitTable[bestMonId]; // sorry buddy, we want something better
}
else
{
invalidMons = 0x3F; // no viable mon to switch
}
}
gDynamicBasePower = 0;
gBattleStruct->dynamicMoveType = 0;
gBattleScripting.dmgMultiplier = 1;
gBattleMoveFlags = 0;
gCritMultiplier = 1;
bestDmg = 0;
bestMonId = 6;
// if we couldn't find the best mon in terms of typing, find the one that deals most damage
for (i = firstId; i < lastId; i++)
{
if ((u16)(GetMonData(&party[i], MON_DATA_SPECIES)) == SPECIES_NONE)
continue;
if (GetMonData(&party[i], MON_DATA_HP) == 0)
continue;
if (gBattlePartyID[bankIn1] == i)
continue;
if (gBattlePartyID[bankIn2] == i)
continue;
if (i == *(gBattleStruct->field_5C + bankIn1))
continue;
if (i == *(gBattleStruct->field_5C + bankIn2))
continue;
for (j = 0; j < 4; j++)
{
move = GetMonData(&party[i], MON_DATA_MOVE1 + j);
gBattleMoveDamage = 0;
if (move != MOVE_NONE && gBattleMoves[move].power != 1)
{
AI_CalcDmg(gActiveBank, opposingBank);
TypeCalc(move, gActiveBank, opposingBank);
}
if (bestDmg < gBattleMoveDamage)
{
bestDmg = gBattleMoveDamage;
bestMonId = i;
}
}
}
return bestMonId;
}
battle 9 is decompiled
2017-10-11 12:49:42 +02:00
// TODO: use PokemonItemEffect struct instead of u8 once it's documented
static u8 GetAI_ItemType(u8 itemId, const u8 *itemEffect) // NOTE: should take u16 as item Id argument
{
if (itemId == ITEM_FULL_RESTORE)
return AI_ITEM_FULL_RESTORE;
if (itemEffect[4] & 4)
return AI_ITEM_HEAL_HP;
if (itemEffect[3] & 0x3F)
return AI_ITEM_CURE_CONDITION;
if (itemEffect[0] & 0x3F || itemEffect[1] != 0 || itemEffect[2] != 0)
return AI_ITEM_X_STAT;
if (itemEffect[3] & 0x80)
return AI_ITEM_GUARD_SPECS;
return AI_ITEM_NOT_RECOGNIZABLE;
}
static bool8 ShouldUseItem(void)
{
struct Pokemon *party;
s32 i;
u8 validMons = 0;
bool8 shouldUse = FALSE;
if (gBattleTypeFlags & BATTLE_TYPE_INGAME_PARTNER && GetBankIdentity(gActiveBank) == IDENTITY_PLAYER_MON2)
return FALSE;
if (GetBankSide(gActiveBank) == SIDE_PLAYER)
party = gPlayerParty;
else
party = gEnemyParty;
for (i = 0; i < 6; i++)
{
if (GetMonData(&party[i], MON_DATA_HP) != 0
&& GetMonData(&party[i], MON_DATA_SPECIES2) != SPECIES_NONE
&& GetMonData(&party[i], MON_DATA_SPECIES2) != SPECIES_EGG)
{
validMons++;
}
}
for (i = 0; i < 4; i++)
{
u16 item;
const u8 *itemEffects;
u8 paramOffset;
u8 bankSide;
if (i != 0 && validMons > (gBattleResources->battleHistory->itemsNo - i) + 1)
continue;
item = gBattleResources->battleHistory->trainerItems[i];
if (item == ITEM_NONE)
continue;
if (gItemEffectTable[item - 13] == NULL)
continue;
if (item == ITEM_ENIGMA_BERRY)
itemEffects = gSaveBlock1Ptr->enigmaBerry.itemEffect;
else
itemEffects = gItemEffectTable[item - 13];
*(gBattleStruct->AI_itemType + gActiveBank / 2) = GetAI_ItemType(item, itemEffects);
switch (*(gBattleStruct->AI_itemType + gActiveBank / 2))
{
case AI_ITEM_FULL_RESTORE:
if (gBattleMons[gActiveBank].hp >= gBattleMons[gActiveBank].maxHP / 4)
break;
if (gBattleMons[gActiveBank].hp == 0)
break;
shouldUse = TRUE;
break;
case AI_ITEM_HEAL_HP:
paramOffset = GetItemEffectParamOffset(item, 4, 4);
if (paramOffset == 0)
break;
if (gBattleMons[gActiveBank].hp == 0)
break;
if (gBattleMons[gActiveBank].hp < gBattleMons[gActiveBank].maxHP / 4 || gBattleMons[gActiveBank].maxHP - gBattleMons[gActiveBank].hp > itemEffects[paramOffset])
shouldUse = TRUE;
break;
case AI_ITEM_CURE_CONDITION:
*(gBattleStruct->AI_itemFlags + gActiveBank / 2) = 0;
if (itemEffects[3] & 0x20 && gBattleMons[gActiveBank].status1 & STATUS_SLEEP)
{
*(gBattleStruct->AI_itemFlags + gActiveBank / 2) |= 0x20;
shouldUse = TRUE;
}
if (itemEffects[3] & 0x10 && (gBattleMons[gActiveBank].status1 & STATUS_POISON || gBattleMons[gActiveBank].status1 & STATUS_TOXIC_POISON))
{
*(gBattleStruct->AI_itemFlags + gActiveBank / 2) |= 0x10;
shouldUse = TRUE;
}
if (itemEffects[3] & 0x8 && gBattleMons[gActiveBank].status1 & STATUS_BURN)
{
*(gBattleStruct->AI_itemFlags + gActiveBank / 2) |= 0x8;
shouldUse = TRUE;
}
if (itemEffects[3] & 0x4 && gBattleMons[gActiveBank].status1 & STATUS_FREEZE)
{
*(gBattleStruct->AI_itemFlags + gActiveBank / 2) |= 0x4;
shouldUse = TRUE;
}
if (itemEffects[3] & 0x2 && gBattleMons[gActiveBank].status1 & STATUS_PARALYSIS)
{
*(gBattleStruct->AI_itemFlags + gActiveBank / 2) |= 0x2;
shouldUse = TRUE;
}
if (itemEffects[3] & 0x1 && gBattleMons[gActiveBank].status2 & STATUS2_CONFUSION)
{
*(gBattleStruct->AI_itemFlags + gActiveBank / 2) |= 0x1;
shouldUse = TRUE;
}
break;
case AI_ITEM_X_STAT:
*(gBattleStruct->AI_itemFlags + gActiveBank / 2) = 0;
if (gDisableStructs[gActiveBank].isFirstTurn == 0)
break;
if (itemEffects[0] & 0xF)
*(gBattleStruct->AI_itemFlags + gActiveBank / 2) |= 0x1;
if (itemEffects[1] & 0xF0)
*(gBattleStruct->AI_itemFlags + gActiveBank / 2) |= 0x2;
if (itemEffects[1] & 0xF)
*(gBattleStruct->AI_itemFlags + gActiveBank / 2) |= 0x4;
if (itemEffects[2] & 0xF)
*(gBattleStruct->AI_itemFlags + gActiveBank / 2) |= 0x8;
if (itemEffects[2] & 0xF0)
*(gBattleStruct->AI_itemFlags + gActiveBank / 2) |= 0x20;
if (itemEffects[0] & 0x30)
*(gBattleStruct->AI_itemFlags + gActiveBank / 2) |= 0x80;
shouldUse = TRUE;
break;
case AI_ITEM_GUARD_SPECS:
bankSide = GetBankSide(gActiveBank);
if (gDisableStructs[gActiveBank].isFirstTurn != 0 && gSideTimers[bankSide].mistTimer == 0)
shouldUse = TRUE;
break;
case AI_ITEM_NOT_RECOGNIZABLE:
return FALSE;
}
if (shouldUse)
{
label and do more work at player controller
2017-10-22 01:04:02 +02:00
EmitChoiceReturnValue(1, 1, 0);
battle 9 is decompiled
2017-10-11 12:49:42 +02:00
*(gBattleStruct->field_C0 + (gActiveBank / 2) * 2) = item;
gBattleResources->battleHistory->trainerItems[i] = 0;
return shouldUse;
}
}
return FALSE;
}
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