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#include "global.h"
#include "dungeon_ai_items.h"
#include "constants/direction.h"
#include "constants/dungeon_action.h"
#include "constants/iq_skill.h"
#include "dungeon_capabilities.h"
#include "dungeon_capabilities_1.h"
#include "dungeon_global_data.h"
#include "item.h"
#include "team_inventory.h"
#define NUM_POTENTIAL_ROCK_TARGETS 20
#define GROUND_ITEM_TOOLBOX_INDEX 0x80
#define HELD_ITEM_TOOLBOX_INDEX 0x81
#define ITEM_TARGET_ALLY 1 << 1
extern void SetAction(u16*, u16);
extern void FindStraightThrowableTargets(struct DungeonEntity*, s32 thrownAIFlag, struct ItemSlot*, bool8 ignoreRollChance);
extern bool8 RollPercentChance(u32);
extern void FindRockItemTargets(struct DungeonEntity*, struct ItemSlot*, s16*[], bool8 ignoreRollChance);
extern s32 DungeonRandomCapped(s32);
extern s32 CalculateFacingDir(s16*, s16*);
extern bool8 HasIQSkill(struct DungeonEntity*, u8);
extern struct MapTile* GetMapTileAtPosition(s16, s16);
extern u32 GetEntityType(struct DungeonEntity*);
extern struct ItemSlot* GetItemData(struct DungeonEntity*);
extern u32 EvaluateItem(struct DungeonEntity*, struct ItemSlot*, u8);
extern bool8 ToolboxEnabled(struct DungeonEntityData*);
extern s32 gNumPotentialTargets;
extern u32 gPotentialTargetWeights[NUM_DIRECTIONS];
extern u32 gPotentialTargetDirections[NUM_DIRECTIONS];
extern struct TeamInventory *gTeamInventory_203B460;
void DecideUseItem(struct DungeonEntity *pokemon)
{
struct DungeonEntityData *pokemonData = pokemon->entityData;
void *null;
struct ItemSlot *item;
s32 toolboxIndex;
u8 selectedToolboxIndex;
u32 *potentialTargetWeights;
if (CannotUseItems(pokemon))
{
pokemonData->useHeldItem = FALSE;
return;
}
null = NULL;
if (pokemonData->useHeldItem)
{
item = &pokemonData->heldItem;
if ((item->itemFlags & ITEM_FLAG_EXISTS) == 0)
{
return;
}
else
{
u8 itemType;
selectedToolboxIndex = HELD_ITEM_TOOLBOX_INDEX;
itemType = GetItemType(item->itemIndex);
if (itemType == ITEM_TYPE_THROWABLE)
{
s32 targetIndex;
FindStraightThrowableTargets(pokemon, 2, item, 1);
for (targetIndex = 0; targetIndex < gNumPotentialTargets; targetIndex++)
{
if (RollPercentChance(gPotentialTargetWeights[targetIndex]))
{
SetAction(&pokemonData->action, DUNGEON_ACTION_THROW_ITEM_AI);
pokemonData->actionUseIndex = selectedToolboxIndex;
pokemonData->lastItemThrowPositionX = pokemon->posWorldX;
pokemonData->lastItemThrowPositionY = pokemon->posWorldY;
pokemonData->facingDir = gPotentialTargetDirections[targetIndex] & DIRECTION_MASK;
break;
}
}
if (targetIndex == gNumPotentialTargets)
{
SetAction(&pokemonData->action, DUNGEON_ACTION_HAVE_SECOND_THOUGHTS);
}
}
else if (itemType == ITEM_TYPE_ROCK)
{
s16 *potentialTargetPositions[NUM_POTENTIAL_ROCK_TARGETS];
FindRockItemTargets(pokemon, item, potentialTargetPositions, TRUE);
if (gNumPotentialTargets == 0)
{
SetAction(&pokemonData->action, DUNGEON_ACTION_HAVE_SECOND_THOUGHTS);
}
else
{
u32 chosenTargetIndex = DungeonRandomCapped(gNumPotentialTargets);
SetAction(&pokemonData->action, DUNGEON_ACTION_THROW_ITEM_AI);
pokemonData->actionUseIndex = selectedToolboxIndex;
pokemonData->lastItemThrowPositionX = pokemon->posWorldX;
pokemonData->lastItemThrowPositionY = pokemon->posWorldY;
pokemonData->facingDir = CalculateFacingDir(&pokemon->posWorldX, (s16 *) (&potentialTargetPositions[chosenTargetIndex])) & DIRECTION_MASK;
pokemonData->itemTargetPosition = potentialTargetPositions[chosenTargetIndex];
}
}
else
{
u8 itemTypeCompare = itemType - 2;
if (itemTypeCompare < ITEM_TYPE_HOLD_ITEM - 2)
{
SetAction(&pokemonData->action, DUNGEON_ACTION_CONSUME_ITEM_AI);
pokemonData->actionUseIndex = selectedToolboxIndex;
pokemonData->lastItemThrowPositionX = pokemon->posWorldX;
pokemonData->lastItemThrowPositionY = pokemon->posWorldY;
}
else
{
SetAction(&pokemonData->action, DUNGEON_ACTION_HAVE_SECOND_THOUGHTS);
}
}
}
}
else if (HasIQSkill(pokemon, IQ_SKILL_ITEM_MASTER))
{
for (toolboxIndex = 1; toolboxIndex < INVENTORY_SIZE + 2; toolboxIndex++)
{
if (toolboxIndex == 1)
{
item = &pokemonData->heldItem;
selectedToolboxIndex = HELD_ITEM_TOOLBOX_INDEX;
}
else if (toolboxIndex == 0)
{
// This seems unused. toolboxIndex can never be 0.
struct MapTile *mapTile = GetMapTileAtPosition(pokemon->posWorldX, pokemon->posWorldY);
struct DungeonEntity *mapObject = mapTile->mapObject;
if (mapObject != null)
{
u32 mapObjectType = GetEntityType(mapObject);
if (mapObjectType == ENTITY_ITEM)
{
item = GetItemData(mapTile->mapObject);
selectedToolboxIndex = GROUND_ITEM_TOOLBOX_INDEX;
}
else
{
continue;
}
}
else
{
continue;
}
}
else if (pokemonData->isLeader)
{
item = &gTeamInventory_203B460->teamItems[toolboxIndex - 2];
selectedToolboxIndex = toolboxIndex - 1;
}
else
{
return;
}
if (((item->itemFlags & ITEM_FLAG_EXISTS) != 0) && ((item->itemFlags & ITEM_FLAG_FOR_SALE) == 0))
{
if ((item->itemFlags & ITEM_FLAG_STICKY) == 0)
{
if (GetItemAIFlag(item->itemIndex, ITEM_AI_FLAG_TARGET_SELF))
{
u32 itemWeight = EvaluateItem(pokemon, item, ITEM_TARGET_ALLY);
if (itemWeight != 0)
{
u8 itemType = GetItemType(item->itemIndex);
if ((!((itemType == ITEM_TYPE_ORB) && (!pokemonData->isEnemy))) && RollPercentChance(itemWeight))
{
if (itemType == ITEM_TYPE_ORB)
{
SetAction(&pokemonData->action, DUNGEON_ACTION_USE_ORB);
}
else
{
SetAction(&pokemonData->action, DUNGEON_ACTION_CONSUME_ITEM_AI);
}
pokemonData->actionUseIndex = selectedToolboxIndex;
pokemonData->lastItemThrowPositionX = pokemon->posWorldX;
pokemonData->lastItemThrowPositionY = pokemon->posWorldY;
return;
}
}
}
}
else
{
continue;
}
}
else
{
continue;
}
if (ToolboxEnabled(pokemonData))
{
s32 thrownAIFlag;
for (thrownAIFlag = ITEM_AI_FLAG_TARGET_ALLY; thrownAIFlag <= ITEM_AI_FLAG_TARGET_ENEMY; thrownAIFlag++)
{
potentialTargetWeights = gPotentialTargetWeights;
if (GetItemAIFlag(item->itemIndex, thrownAIFlag))
{
u8 itemType = GetItemType(item->itemIndex);
if (itemType == ITEM_TYPE_ROCK)
{
s16 *potentialTargetPositions[NUM_POTENTIAL_ROCK_TARGETS];
FindRockItemTargets(pokemon, item, potentialTargetPositions, FALSE);
if (gNumPotentialTargets != 0)
{
u32 chosenTargetIndex = DungeonRandomCapped(gNumPotentialTargets);
SetAction(&pokemonData->action, DUNGEON_ACTION_THROW_ITEM_AI);
pokemonData->actionUseIndex = selectedToolboxIndex;
pokemonData->lastItemThrowPositionX = pokemon->posWorldX;
pokemonData->lastItemThrowPositionY = pokemon->posWorldY;
pokemonData->facingDir = CalculateFacingDir(&pokemon->posWorldX, (s16 *) (&potentialTargetPositions[chosenTargetIndex])) & DIRECTION_MASK;
pokemonData->itemTargetPosition = potentialTargetPositions[chosenTargetIndex];
return;
}
}
else
{
s32 targetIndex;
FindStraightThrowableTargets(pokemon, thrownAIFlag, item, FALSE);
for (targetIndex = 0; targetIndex < gNumPotentialTargets; targetIndex++)
{
if (RollPercentChance(potentialTargetWeights[targetIndex]))
{
SetAction(&pokemonData->action, DUNGEON_ACTION_THROW_ITEM_AI);
pokemonData->actionUseIndex = selectedToolboxIndex;
pokemonData->lastItemThrowPositionX = pokemon->posWorldX;
pokemonData->lastItemThrowPositionY = pokemon->posWorldY;
pokemonData->facingDir = gPotentialTargetDirections[targetIndex] & DIRECTION_MASK;
return;
}
}
}
}
}
}
}
}
}
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