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Merge pull request #1912 from GriffinRichards/moves-mask

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Handful of fixes related to MAX_MON_MOVES
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GriffinR 2023-08-27 19:40:59 -04:00 committed by GitHub
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13 changed files with 96 additions and 60 deletions
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7
include/battle.h
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@ -392,7 +392,7 @@ struct BattleStruct
u8 expGetterBattlerId;
u8 unused_5;
u8 absentBattlerFlags;
u8 palaceFlags; // First 4 bits are "is < 50% HP and not asleep" for each battler, last 4 bits are selected moves to pass to AI
u8 palaceFlags; // First 4 bits are "is <= 50% HP and not asleep" for each battler, last 4 bits are selected moves to pass to AI
u8 field_93; // related to choosing pokemon?
u8 wallyBattleState;
u8 wallyMovesState;
@ -440,6 +440,11 @@ struct BattleStruct
u8 alreadyStatusedMoveAttempt; // As bits for battlers; For example when using Thunder Wave on an already paralyzed pokemon.
};
// The palaceFlags member of struct BattleStruct contains 1 flag per move to indicate which moves the AI should consider,
// and 1 flag per battler to indicate whether the battler is awake and at <= 50% HP (which affects move choice).
// The assert below is to ensure palaceFlags is large enough to store these flags without overlap.
STATIC_ASSERT(sizeof(((struct BattleStruct *)0)->palaceFlags) * 8 >= MAX_BATTLERS_COUNT + MAX_MON_MOVES, PalaceFlagsTooSmall)
#define F_DYNAMIC_TYPE_1 (1 << 6)
#define F_DYNAMIC_TYPE_2 (1 << 7)
#define DYNAMIC_TYPE_MASK (F_DYNAMIC_TYPE_1 - 1)

1
include/constants/global.h
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@ -80,6 +80,7 @@
#define TRAINER_ID_LENGTH 4
#define MAX_MON_MOVES 4
#define ALL_MOVES_MASK ((1 << MAX_MON_MOVES) - 1)
#define CONTESTANT_COUNT 4
#define CONTEST_CATEGORY_COOL 0

6
include/global.h
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@ -85,6 +85,12 @@
#define SAFE_DIV(a, b) ((a) / (b))
#endif
// The below macro does a%n, but (to match) will switch to a&(n-1) if n is a power of 2.
// There are cases where GF does a&(n-1) where we would really like to have a%n, because
// if n is changed to a value that isn't a power of 2 then a&(n-1) is unlikely to work as
// intended, and a%n for powers of 2 isn't always optimized to use &.
#define MOD(a, n)(((n) & ((n)-1)) ? ((a) % (n)) : ((a) & ((n)-1)))
// Extracts the upper 16 bits of a 32-bit number
#define HIHALF(n) (((n) & 0xFFFF0000) >> 16)

4
src/battle_ai_script_commands.c
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@ -478,9 +478,9 @@ static u8 ChooseMoveOrAction_Doubles(void)
else
{
if (gBattleTypeFlags & BATTLE_TYPE_PALACE)
BattleAI_SetupAIData(gBattleStruct->palaceFlags >> 4);
BattleAI_SetupAIData(gBattleStruct->palaceFlags >> MAX_BATTLERS_COUNT);
else
BattleAI_SetupAIData((1 << MAX_MON_MOVES) - 1);
BattleAI_SetupAIData(ALL_MOVES_MASK);
gBattlerTarget = i;

4
src/battle_controller_opponent.c
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@ -1555,7 +1555,7 @@ static void OpponentHandleChooseMove(void)
if (gBattleTypeFlags & (BATTLE_TYPE_TRAINER | BATTLE_TYPE_FIRST_BATTLE | BATTLE_TYPE_SAFARI | BATTLE_TYPE_ROAMER))
{
BattleAI_SetupAIData(0xF);
BattleAI_SetupAIData(ALL_MOVES_MASK);
chosenMoveId = BattleAI_ChooseMoveOrAction();
switch (chosenMoveId)
@ -1588,7 +1588,7 @@ static void OpponentHandleChooseMove(void)
u16 move;
do
{
chosenMoveId = Random() & 3;
chosenMoveId = MOD(Random(), MAX_MON_MOVES);
move = moveInfo->moves[chosenMoveId];
} while (move == MOVE_NONE);

2
src/battle_controller_player_partner.c
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@ -1515,7 +1515,7 @@ static void PlayerPartnerHandleChooseMove(void)
u8 chosenMoveId;
struct ChooseMoveStruct *moveInfo = (struct ChooseMoveStruct *)(&gBattleBufferA[gActiveBattler][4]);
BattleAI_SetupAIData(0xF);
BattleAI_SetupAIData(ALL_MOVES_MASK);
chosenMoveId = BattleAI_ChooseMoveOrAction();
if (gBattleMoves[moveInfo->moves[chosenMoveId]].target & (MOVE_TARGET_USER | MOVE_TARGET_USER_OR_SELECTED))

97
src/battle_gfx_sfx_util.c
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@ -121,9 +121,9 @@ u16 ChooseMoveAndTargetInBattlePalace(void)
#define selectedGroup percent
#define selectedMoves var2
#define moveTarget var1
#define validMoveFlags var1
#define numValidMoveGroups var2
#define validMoveGroup var2
#define numMovesPerGroup var1
#define numMultipleMoveGroups var2
#define randSelectGroup var2
// If battler is < 50% HP and not asleep, use second set of move group likelihoods
// otherwise use first set
@ -157,8 +157,10 @@ u16 ChooseMoveAndTargetInBattlePalace(void)
// Pass selected moves to AI, pick one
if (selectedMoves != 0)
{
gBattleStruct->palaceFlags &= 0xF;
gBattleStruct->palaceFlags |= (selectedMoves << 4);
// Lower 4 bits of palaceFlags are flags for each battler.
// Clear the rest of palaceFlags, then set the selected moves in the upper 4 bits.
gBattleStruct->palaceFlags &= (1 << MAX_BATTLERS_COUNT) - 1;
gBattleStruct->palaceFlags |= (selectedMoves << MAX_BATTLERS_COUNT);
BattleAI_SetupAIData(selectedMoves);
chosenMoveId = BattleAI_ChooseMoveOrAction();
}
@ -168,34 +170,47 @@ u16 ChooseMoveAndTargetInBattlePalace(void)
// If a move is chosen this way, there's a 50% chance that it will be unable to use it anyway
if (chosenMoveId == -1)
{
if (unusableMovesBits != 0xF)
if (unusableMovesBits != ALL_MOVES_MASK)
{
validMoveFlags = 0, numValidMoveGroups = 0;
numMovesPerGroup = 0, numMultipleMoveGroups = 0;
for (i = 0; i < MAX_MON_MOVES; i++)
{
// validMoveFlags is used here as a bitfield for which moves can be used for each move group type
// first 4 bits are for attack (1 for each move), then 4 bits for defense, and 4 for support
// Count the number of usable moves the battler has in each move group.
// The totals will be stored separately in 3 groups of 4 bits each in numMovesPerGroup.
if (GetBattlePalaceMoveGroup(moveInfo->moves[i]) == PALACE_MOVE_GROUP_ATTACK && !(gBitTable[i] & unusableMovesBits))
validMoveFlags += (1 << 0);
numMovesPerGroup += (1 << 0);
if (GetBattlePalaceMoveGroup(moveInfo->moves[i]) == PALACE_MOVE_GROUP_DEFENSE && !(gBitTable[i] & unusableMovesBits))
validMoveFlags += (1 << 4);
numMovesPerGroup += (1 << 4);
if (GetBattlePalaceMoveGroup(moveInfo->moves[i]) == PALACE_MOVE_GROUP_SUPPORT && !(gBitTable[i] & unusableMovesBits))
validMoveFlags += (1 << 8);
numMovesPerGroup += (1 << 8);
}
// Count the move groups the pokemon has
if ((validMoveFlags & 0xF) > 1)
numValidMoveGroups++;
if ((validMoveFlags & 0xF0) > 0x1F)
numValidMoveGroups++;
if ((validMoveFlags & 0xF0) > 0x1FF)
numValidMoveGroups++;
// Count the number of move groups for which the battler has at least 2 usable moves.
// This is a roundabout way to determine if there is a move group that should be
// preferred, because it has multiple move options and the others do not.
// The condition intended to check the total for the Support group is accidentally
// checking the Defense total, and is never true. As a result the preferences for
// random move selection here will skew away from the Support move group.
if ((numMovesPerGroup & 0xF) >= 2)
numMultipleMoveGroups++;
if ((numMovesPerGroup & (0xF << 4)) >= (2 << 4))
numMultipleMoveGroups++;
#ifdef BUGFIX
if ((numMovesPerGroup & (0xF << 8)) >= (2 << 8))
#else
if ((numMovesPerGroup & (0xF << 4)) >= (2 << 8))
#endif
numMultipleMoveGroups++;
// If more than 1 possible move group, or no possible move groups
// then choose move randomly
if (numValidMoveGroups > 1 || numValidMoveGroups == 0)
// By this point we already know the battler only has usable moves from at most 2 of the 3 move groups,
// because they had no usable moves from the move group that was selected based on Nature.
//
// The below condition is effectively 'numMultipleMoveGroups != 1'.
// There is no stand-out group with multiple moves to choose from, so we pick randomly.
// Note that because of the bug above the battler may actually have any number of Support moves.
if (numMultipleMoveGroups > 1 || numMultipleMoveGroups == 0)
{
do
{
@ -204,27 +219,36 @@ u16 ChooseMoveAndTargetInBattlePalace(void)
chosenMoveId = i;
} while (chosenMoveId == -1);
}
// Otherwise randomly choose move of only available move group
else
{
if ((validMoveFlags & 0xF) > 1)
validMoveGroup = PALACE_MOVE_GROUP_ATTACK;
if ((validMoveFlags & 0xF0) > 0x1F)
validMoveGroup = PALACE_MOVE_GROUP_DEFENSE;
if ((validMoveFlags & 0xF0) > 0x1FF)
validMoveGroup = PALACE_MOVE_GROUP_SUPPORT;
// The battler has just 1 move group with multiple move options to choose from.
// Choose a move randomly from this group.
// Same bug as the previous set of conditions (the condition for Support is never true).
// This bug won't cause a softlock below, because if Support is the only group with multiple
// moves then it won't have been counted, and the 'numMultipleMoveGroups == 0' above will be true.
if ((numMovesPerGroup & 0xF) >= 2)
randSelectGroup = PALACE_MOVE_GROUP_ATTACK;
if ((numMovesPerGroup & (0xF << 4)) >= (2 << 4))
randSelectGroup = PALACE_MOVE_GROUP_DEFENSE;
#ifdef BUGFIX
if ((numMovesPerGroup & (0xF << 8)) >= (2 << 8))
#else
if ((numMovesPerGroup & (0xF << 4)) >= (2 << 8))
#endif
randSelectGroup = PALACE_MOVE_GROUP_SUPPORT;
do
{
i = Random() % MAX_MON_MOVES;
if (!(gBitTable[i] & unusableMovesBits) && validMoveGroup == GetBattlePalaceMoveGroup(moveInfo->moves[i]))
if (!(gBitTable[i] & unusableMovesBits) && randSelectGroup == GetBattlePalaceMoveGroup(moveInfo->moves[i]))
chosenMoveId = i;
} while (chosenMoveId == -1);
}
// If a move was selected (and in this case was not from the Nature-chosen group)
// then there's a 50% chance it won't be used anyway
if (Random() % 100 > 49)
// Because the selected move was not from the Nature-chosen move group there's a 50% chance
// that it will be unable to use it. This could have been checked earlier to avoid the above work.
if (Random() % 100 >= 50)
{
gProtectStructs[gActiveBattler].palaceUnableToUseMove = TRUE;
return 0;
@ -232,6 +256,7 @@ u16 ChooseMoveAndTargetInBattlePalace(void)
}
else
{
// All the battler's moves were flagged as unusable.
gProtectStructs[gActiveBattler].palaceUnableToUseMove = TRUE;
return 0;
}
@ -264,9 +289,9 @@ u16 ChooseMoveAndTargetInBattlePalace(void)
#undef selectedGroup
#undef selectedMoves
#undef moveTarget
#undef validMoveFlags
#undef numValidMoveGroups
#undef validMoveGroup
#undef numMovesPerGroup
#undef numMultipleMoveGroups
#undef randSelectGroup
static u8 GetBattlePalaceMoveGroup(u16 move)
{

4
src/battle_pyramid.c
View File

@ -38,7 +38,7 @@
#include "constants/moves.h"
#include "constants/trainers.h"
#define NUM_LAYOUT_OFFSETS 8 // Assumed to be a power of 2
#define NUM_LAYOUT_OFFSETS 8
extern const struct MapLayout *const gMapLayouts[];
@ -1904,7 +1904,7 @@ static void GetPyramidFloorLayoutOffsets(u8 *layoutOffsets)
for (i = 0; i < NUM_PYRAMID_FLOOR_SQUARES; i++)
{
layoutOffsets[i] = sPyramidFloorTemplates[id].layoutOffsets[rand & (NUM_LAYOUT_OFFSETS - 1)];
layoutOffsets[i] = sPyramidFloorTemplates[id].layoutOffsets[MOD(rand, NUM_LAYOUT_OFFSETS)];
rand >>= 3;
if (i == 7)
{

8
src/battle_script_commands.c
View File

@ -849,7 +849,7 @@ static const u8 sBallCatchBonuses[] =
// In Battle Palace, moves are chosen based on the pokemons nature rather than by the player
// Moves are grouped into "Attack", "Defense", or "Support" (see PALACE_MOVE_GROUP_*)
// Each nature has a certain percent chance of selecting a move from a particular group
// and a separate percent chance for each group when below 50% HP
// and a separate percent chance for each group when at or below 50% HP
// The table below doesn't list percentages for Support because you can subtract the other two
// Support percentages are listed in comments off to the side instead
#define PALACE_STYLE(atk, def, atkLow, defLow) {atk, atk + def, atkLow, atkLow + defLow}
@ -7350,7 +7350,7 @@ static void Cmd_tryconversiontypechange(void)
{
do
{
while ((moveChecked = Random() & (MAX_MON_MOVES - 1)) >= validMoves);
while ((moveChecked = MOD(Random(), MAX_MON_MOVES)) >= validMoves);
moveType = gBattleMoves[gBattleMons[gBattlerAttacker].moves[moveChecked]].type;
@ -8179,7 +8179,7 @@ static void Cmd_trychoosesleeptalkmove(void)
}
unusableMovesBits = CheckMoveLimitations(gBattlerAttacker, unusableMovesBits, ~MOVE_LIMITATION_PP);
if (unusableMovesBits == (1 << MAX_MON_MOVES) - 1) // all 4 moves cannot be chosen
if (unusableMovesBits == ALL_MOVES_MASK) // all 4 moves cannot be chosen
{
gBattlescriptCurrInstr += 5;
}
@ -8189,7 +8189,7 @@ static void Cmd_trychoosesleeptalkmove(void)
do
{
movePosition = Random() & (MAX_MON_MOVES - 1);
movePosition = MOD(Random(), MAX_MON_MOVES);
} while ((gBitTable[movePosition] & unusableMovesBits));
gCalledMove = gBattleMons[gBattlerAttacker].moves[movePosition];

15
src/battle_util.c
View File

@ -1110,7 +1110,6 @@ u8 CheckMoveLimitations(u8 battlerId, u8 unusableMoves, u8 check)
return unusableMoves;
}
#define ALL_MOVES_MASK ((1 << MAX_MON_MOVES) - 1)
bool8 AreAllMovesUnusable(void)
{
u8 unusable = CheckMoveLimitations(gActiveBattler, 0, MOVE_LIMITATIONS_ALL);
@ -1127,7 +1126,6 @@ bool8 AreAllMovesUnusable(void)
return (unusable == ALL_MOVES_MASK);
}
#undef ALL_MOVES_MASK
u8 GetImprisonedMovesCount(u8 battlerId, u16 move)
{
@ -2775,11 +2773,12 @@ u8 AbilityBattleEffects(u8 caseID, u8 battler, u8 ability, u8 special, u16 moveA
{
do
{
// Pick either MOVE_EFFECT_SLEEP, MOVE_EFFECT_POISON or MOVE_EFFECT_BURN
gBattleCommunication[MOVE_EFFECT_BYTE] = Random() & 3;
} while (gBattleCommunication[MOVE_EFFECT_BYTE] == 0);
// Replace MOVE_EFFECT_BURN with MOVE_EFFECT_PARALYSIS
if (gBattleCommunication[MOVE_EFFECT_BYTE] == MOVE_EFFECT_BURN)
gBattleCommunication[MOVE_EFFECT_BYTE] += 2; // 5 MOVE_EFFECT_PARALYSIS
gBattleCommunication[MOVE_EFFECT_BYTE] += (MOVE_EFFECT_PARALYSIS - MOVE_EFFECT_BURN);
gBattleCommunication[MOVE_EFFECT_BYTE] += MOVE_EFFECT_AFFECTS_USER;
BattleScriptPushCursor();
@ -3954,11 +3953,11 @@ u8 IsMonDisobedient(void)
if (calc < obedienceLevel)
{
calc = CheckMoveLimitations(gBattlerAttacker, gBitTable[gCurrMovePos], MOVE_LIMITATIONS_ALL);
if (calc == 0xF) // all moves cannot be used
if (calc == ALL_MOVES_MASK) // all moves cannot be used
{
// Randomly select, then print a disobedient string
// B_MSG_LOAFING, B_MSG_WONT_OBEY, B_MSG_TURNED_AWAY, or B_MSG_PRETEND_NOT_NOTICE
gBattleCommunication[MULTISTRING_CHOOSER] = Random() & (NUM_LOAF_STRINGS - 1);
gBattleCommunication[MULTISTRING_CHOOSER] = MOD(Random(), NUM_LOAF_STRINGS);
gBattlescriptCurrInstr = BattleScript_MoveUsedLoafingAround;
return 1;
}
@ -3966,7 +3965,7 @@ u8 IsMonDisobedient(void)
{
do
{
gCurrMovePos = gChosenMovePos = Random() & (MAX_MON_MOVES - 1);
gCurrMovePos = gChosenMovePos = MOD(Random(), MAX_MON_MOVES);
} while (gBitTable[gCurrMovePos] & calc);
gCalledMove = gBattleMons[gBattlerAttacker].moves[gCurrMovePos];
@ -4009,7 +4008,7 @@ u8 IsMonDisobedient(void)
{
// Randomly select, then print a disobedient string
// B_MSG_LOAFING, B_MSG_WONT_OBEY, B_MSG_TURNED_AWAY, or B_MSG_PRETEND_NOT_NOTICE
gBattleCommunication[MULTISTRING_CHOOSER] = Random() & (NUM_LOAF_STRINGS - 1);
gBattleCommunication[MULTISTRING_CHOOSER] = MOD(Random(), NUM_LOAF_STRINGS);
gBattlescriptCurrInstr = BattleScript_MoveUsedLoafingAround;
return 1;
}

2
src/contest_ai.c
View File

@ -326,7 +326,7 @@ u8 ContestAI_GetActionToUse(void)
{
// Randomly choose a move index. If it's the move
// with the highest (or tied highest) score, return
u8 moveIdx = Random() & (MAX_MON_MOVES - 1); // % MAX_MON_MOVES doesn't match
u8 moveIdx = MOD(Random(), MAX_MON_MOVES);
u8 score = eContestAI.moveScores[moveIdx];
int i;
for (i = 0; i < MAX_MON_MOVES; i++)

2
src/intro.c
View File

@ -1163,7 +1163,7 @@ void CB2_InitCopyrightScreenAfterTitleScreen(void)
static void Task_Scene1_Load(u8 taskId)
{
SetVBlankCallback(NULL);
sIntroCharacterGender = Random() & 1;
sIntroCharacterGender = MOD(Random(), GENDER_COUNT);
IntroResetGpuRegs();
SetGpuReg(REG_OFFSET_BG3VOFS, 0);
SetGpuReg(REG_OFFSET_BG2VOFS, 80);

4
src/naming_screen.c
View File

@ -1067,7 +1067,7 @@ static void SpriteCB_InputArrow(struct Sprite *sprite)
if (sprite->sDelay == 0 || --sprite->sDelay == 0)
{
sprite->sDelay = 8;
sprite->sXPosId = (sprite->sXPosId + 1) & (ARRAY_COUNT(x) - 1);
sprite->sXPosId = MOD(sprite->sXPosId + 1, ARRAY_COUNT(x));
}
sprite->x2 = x[sprite->sXPosId];
}
@ -1097,7 +1097,7 @@ static void SpriteCB_Underscore(struct Sprite *sprite)
sprite->sDelay++;
if (sprite->sDelay > 8)
{
sprite->sYPosId = (sprite->sYPosId + 1) & (ARRAY_COUNT(y) - 1);
sprite->sYPosId = MOD(sprite->sYPosId + 1, ARRAY_COUNT(y));
sprite->sDelay = 0;
}
}