Merge branch 'master' of https://github.com/pret/pokeemerald into menu

1 files changed, 1124 insertions, 0 deletions

diff --git a/src/item_use.c b/src/item_use.c
new file mode 100755
index 000000000..6f585ed8b
--- /dev/null
+++ b/src/item_use.c
@@ -0,0 +1,1124 @@
+#include "global.h"
+#include "battle.h"
+#include "berry.h"
+#include "bike.h"
+#include "coins.h"
+#include "constants/flags.h"
+#include "constants/items.h"
+#include "constants/songs.h"
+#include "constants/vars.h"
+#include "data2.h"
+#include "event_data.h"
+#include "fieldmap.h"
+#include "field_map_obj.h"
+#include "field_player_avatar.h"
+#include "field_screen.h"
+#include "field_weather.h"
+#include "item.h"
+#include "field_map_obj_helpers.h"
+#include "mail.h"
+#include "metatile_behavior.h"
+#include "overworld.h"
+#include "palette.h"
+#include "pokemon.h"
+#include "rom_818CFC8.h"
+#include "script.h"
+#include "sound.h"
+#include "string_util.h"
+#include "task.h"
+#include "text.h"
+
+extern u16 gSpecialVar_ItemId;
+extern void(**gUnknown_0203CE54)(void);
+extern void(**gUnknown_0203CF2C)(void);
+extern void(*gUnknown_0203A0F4)(u8 taskId);
+extern void(*gUnknown_085920D8[])(void);
+extern void (*gUnknown_03006328)(u8, u16, TaskFunc);
+extern void unknown_ItemMenu_Confirm(u8 taskId);
+extern void sub_81C5B14(u8 taskId);
+extern u8 gText_DadsAdvice[];
+extern u8 gText_CantDismountBike[];
+extern void sub_8197434(u8 a, u8 b);
+extern void sub_80984F4(void);
+extern void ItemUseOutOfBattle_TMHM(u8 a);
+extern void ItemUseOutOfBattle_EvolutionStone(u8 b);
+extern void bag_menu_mail_related(void);
+extern void OpenPokeblockCase(u8 a, void(*b)(void));
+extern void overworld_free_bg_tilemaps(void);
+extern bool32 sav1_map_is_biking_allowed(void);
+extern bool8 IsPlayerFacingSurfableFishableWater(void);
+extern bool8 sub_81221AC(void);
+extern u8 gText_ItemFinderNothing[];
+extern u8 gText_ItemFinderNearby[];
+extern u8 gText_ItemFinderOnTop[];
+extern u8 gText_CoinCase[];
+extern u8 gText_PowderQty[];
+extern u8 gUnknown_085920E4[];
+extern u8 Route102_EventScript_274482[];
+extern u8 Route102_EventScript_2744C0[];
+extern u8 BattleFrontier_OutsideEast_EventScript_242CFC[];
+extern u8 gText_BootedUpHM[];
+extern u8 gText_BootedUpTM[];
+extern u8 gText_TMHMContainedVar1[];
+extern u8 gText_PlayerUsedVar2[];
+extern u8 gText_RepelEffectsLingered[];
+extern u8 gText_UsedVar2WildLured[];
+extern u8 gText_UsedVar2WildRepelled[];
+extern u8 gText_BoxFull[];
+extern u8 gText_WontHaveEffect[];
+extern int sub_80247BC(void);
+extern struct MapHeader* mapconnection_get_mapheader(struct MapConnection *connection);
+extern void SetUpItemUseCallback(u8 taskId);
+extern void ItemUseCB_Medicine(u8, u16, TaskFunc);
+extern void sub_81B67C8(u8, u16, TaskFunc);
+extern void sub_81B79E8(u8, u16, TaskFunc);
+extern void dp05_ether(u8, u16, TaskFunc);
+extern void dp05_pp_up(u8, u16, TaskFunc);
+extern void dp05_rare_candy(u8, u16, TaskFunc);
+extern void sub_81B6DC4(u8, u16, TaskFunc);
+extern void sub_81B7C74(u8, u16, TaskFunc);
+extern u16 ItemIdToBattleMoveId(u16);
+extern void bag_menu_yes_no(u8, u8, void(**)(u8 taskId));
+extern void (*gUnknown_085920E8[])(u8 taskId);
+extern void sub_81C5924(void);
+extern void sub_81C59BC(void);
+extern void sub_81AB9A8(u8);
+extern void sub_81ABA88(u8);
+extern void sub_80B7CC8(void);
+extern void flagmods_08054D70(void);
+extern u8* sub_806CF78(u16);
+extern bool8 ExecuteTableBasedItemEffect_(struct Pokemon*, u16, u8, u8);
+extern u8 gBankInMenu;
+extern u16 gBattlerPartyIndexes[];
+extern void sub_81B89F0(void);
+extern u8 GetItemEffectType(u16);
+extern struct MapConnection *sub_8088A8C(s16, s16);
+
+void MapPostLoadHook_UseItem(void);
+extern void sub_80AF6D4(void);
+void Task_CallItemUseOnFieldCallback(u8 taskId);
+void bag_menu_inits_lists_menu(u8 taskId);
+void ItemUseOnFieldCB_Bike(u8 taskId);
+void ItemUseOnFieldCB_Rod(u8 taskId);
+void ItemUseOnFieldCB_Itemfinder(u8 taskId);
+void sub_80FD504(u8 taskId);
+void sub_80FD5CC(u8 taskId);
+void sub_80FDA94(u8 taskId);
+void sub_80FDADC(u8 taskId);
+void sub_80FD7C8(u8 taskId);
+void sub_80FDC00(u8 taskId);
+void sub_80FDD74(u8 taskId);
+void sub_80FDE08(u8 taskId);
+void sub_80FDE7C(u8 taskId);
+void sub_80FDF90(u8 taskId);
+void task08_0809AD8C(u8 taskId);
+void sub_80FE024(u8 taskId);
+void sub_80FE124(u8 taskId);
+void sub_80FE164(u8 taskId);
+
+void DisplayItemMessage(u8 taskId, u8 a, u8* str, void(*callback)(u8 taskId));
+void DisplayItemMessageInBattlePyramid(u8 taskId, u8* str, void(*callback)(u8 taskId));
+void DisplayItemMessageOnField(u8 taskId, u8* str, void(*callback)(u8 taskId));
+void sub_81C6714(u8 taskId);
+void CleanUpAfterFailingToUseRegisteredKeyItemOnField(u8 taskId);
+void StartFishing(u8 a);
+bool8 ItemfinderCheckForHiddenItems(struct MapEvents *, u8);
+u8 sub_80FD9B0(s16 a, s16 b);
+void sub_80FDA24(u8 a);
+void sub_80FD8E0(u8 taskId, s16 x, s16 y);
+void sub_80FDBEC(void);
+bool8 sub_80FDE2C(void);
+void ItemUseOutOfBattle_CannotUse(u8 taskId);
+
+void SetUpItemUseCallback(u8 taskId)
+{
+    u8 type;
+    if (gSpecialVar_ItemId == ITEM_ENIGMA_BERRY)
+        type = gTasks[taskId].data[4] - 1;
+    else
+        type = ItemId_GetType(gSpecialVar_ItemId) - 1;
+    if (!InBattlePyramid())
+    {
+        *gUnknown_0203CE54 = gUnknown_085920D8[type];
+        unknown_ItemMenu_Confirm(taskId);
+    }
+    else
+    {
+        *gUnknown_0203CF2C = gUnknown_085920D8[type];
+        sub_81C5B14(taskId);
+    }
+}
+
+void SetUpItemUseOnFieldCallback(u8 taskId)
+{
+    if (gTasks[taskId].data[3] != 1)
+    {
+        gFieldCallback = MapPostLoadHook_UseItem;
+        SetUpItemUseCallback(taskId);
+    }
+    else
+        gUnknown_0203A0F4(taskId);
+}
+
+void MapPostLoadHook_UseItem(void)
+{
+    pal_fill_black();
+    CreateTask(Task_CallItemUseOnFieldCallback, 8);
+}
+
+void Task_CallItemUseOnFieldCallback(u8 taskId)
+{
+    if (sub_80ABDFC() == 1)
+        gUnknown_0203A0F4(taskId);
+}
+
+void DisplayCannotUseItemMessage(u8 taskId, bool8 isUsingRegisteredKeyItemOnField, const u8 *str)
+{
+    StringExpandPlaceholders(gStringVar4, str);
+    if (!isUsingRegisteredKeyItemOnField)
+    {
+        if (!InBattlePyramid())
+            DisplayItemMessage(taskId, 1, gStringVar4, bag_menu_inits_lists_menu);
+        else
+            DisplayItemMessageInBattlePyramid(taskId, gText_DadsAdvice, sub_81C6714);
+    }
+    else
+        DisplayItemMessageOnField(taskId, gStringVar4, CleanUpAfterFailingToUseRegisteredKeyItemOnField);
+}
+
+void DisplayDadsAdviceCannotUseItemMessage(u8 taskId, bool8 isUsingRegisteredKeyItemOnField)
+{
+    DisplayCannotUseItemMessage(taskId, isUsingRegisteredKeyItemOnField, gText_DadsAdvice);
+}
+
+void DisplayCannotDismountBikeMessage(u8 taskId, bool8 isUsingRegisteredKeyItemOnField)
+{
+    DisplayCannotUseItemMessage(taskId, isUsingRegisteredKeyItemOnField, gText_CantDismountBike);
+}
+
+void CleanUpAfterFailingToUseRegisteredKeyItemOnField(u8 taskId)
+{
+    sub_8197434(0, 1);
+    DestroyTask(taskId);
+    sub_80984F4();
+    ScriptContext2_Disable();
+}
+
+u8 CheckIfItemIsTMHMOrEvolutionStone(u16 itemId)
+{
+    if (ItemId_GetFieldFunc(itemId) == ItemUseOutOfBattle_TMHM)
+        return 1;
+    else if (ItemId_GetFieldFunc(itemId) == ItemUseOutOfBattle_EvolutionStone)
+        return 2;
+    else
+        return 0;
+}
+
+void sub_80FD254()
+{
+    struct MailStruct mail;
+    mail.itemId = gSpecialVar_ItemId;
+    ReadMail(&mail, bag_menu_mail_related, 0);
+}
+
+void ItemUseOutOfBattle_Mail(u8 taskId)
+{
+    *gUnknown_0203CE54 = sub_80FD254;
+    unknown_ItemMenu_Confirm(taskId);
+}
+
+void ItemUseOutOfBattle_Bike(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    s16 coordsY;
+    s16 coordsX;
+    u8 behavior;
+    PlayerGetDestCoords(&coordsX, &coordsY);
+    behavior = MapGridGetMetatileBehaviorAt(coordsX, coordsY);
+    if (FlagGet(FLAG_SYS_CYCLING_ROAD) == TRUE || MetatileBehavior_IsVerticalRail(behavior) == TRUE || MetatileBehavior_IsHorizontalRail(behavior) == TRUE || MetatileBehavior_IsIsolatedVerticalRail(behavior) == TRUE || MetatileBehavior_IsIsolatedHorizontalRail(behavior) == TRUE)
+        DisplayCannotDismountBikeMessage(taskId, data[3]);
+    else
+    {
+        if (sav1_map_is_biking_allowed() == TRUE && IsBikingDisallowedByPlayer() == 0)
+        {
+            gUnknown_0203A0F4 = ItemUseOnFieldCB_Bike;
+            SetUpItemUseOnFieldCallback(taskId);
+        }
+        else
+            DisplayDadsAdviceCannotUseItemMessage(taskId, data[3]);
+    }
+}
+
+void ItemUseOnFieldCB_Bike(u8 taskId)
+{
+    if (!ItemId_GetSecondaryId(gSpecialVar_ItemId))
+        GetOnOffBike(2);
+    else
+        GetOnOffBike(4);
+    sub_80984F4();
+    ScriptContext2_Disable();
+    DestroyTask(taskId);
+}
+
+bool32 CanFish()
+{
+    s16 x, y;
+    u16 tileBehavior;
+
+    GetXYCoordsOneStepInFrontOfPlayer(&x, &y);
+    tileBehavior = MapGridGetMetatileBehaviorAt(x, y);
+
+    if (MetatileBehavior_IsWaterfall(tileBehavior))
+        return FALSE;
+
+    if (TestPlayerAvatarFlags(PLAYER_AVATAR_FLAG_4))
+        return FALSE;
+
+    if (!TestPlayerAvatarFlags(PLAYER_AVATAR_FLAG_SURFING))
+    {
+        if (IsPlayerFacingSurfableFishableWater())
+            return TRUE;
+    }
+    else
+    {
+        if (MetatileBehavior_IsSurfableWaterOrUnderwater(tileBehavior) && !MapGridIsImpassableAt(x, y))
+            return TRUE;
+        if (MetatileBehavior_8089510(tileBehavior) == TRUE)
+            return TRUE;
+    }
+
+    return FALSE;
+}
+
+void ItemUseOutOfBattle_Rod(u8 taskId)
+{
+    if (CanFish() == TRUE)
+    {
+        gUnknown_0203A0F4 = ItemUseOnFieldCB_Rod;
+        SetUpItemUseOnFieldCallback(taskId);
+    }
+    else
+        DisplayDadsAdviceCannotUseItemMessage(taskId, gTasks[taskId].data[3]);
+}
+
+void ItemUseOnFieldCB_Rod(u8 taskId)
+{
+    StartFishing(ItemId_GetSecondaryId(gSpecialVar_ItemId));
+    DestroyTask(taskId);
+}
+
+void ItemUseOutOfBattle_Itemfinder(u8 var)
+{
+    IncrementGameStat(0x27);
+    gUnknown_0203A0F4 = ItemUseOnFieldCB_Itemfinder;
+    SetUpItemUseOnFieldCallback(var);
+}
+
+void ItemUseOnFieldCB_Itemfinder(u8 taskId)
+{
+    if (ItemfinderCheckForHiddenItems(gMapHeader.events, taskId) == TRUE)
+        gTasks[taskId].func = sub_80FD504;
+    else
+        DisplayItemMessageOnField(taskId, gText_ItemFinderNothing, sub_80FD5CC);
+}
+
+void sub_80FD504(u8 taskId)
+{
+    u8 playerDir;
+    u8 playerDirToItem;
+    u8 i;
+    s16* data = gTasks[taskId].data;
+    if (!data[3])
+    {
+        if (data[4] == 4)
+        {
+            playerDirToItem = sub_80FD9B0(data[0], data[1]);
+            if (playerDirToItem)
+            {
+                sub_80FDA24(gUnknown_085920E4[playerDirToItem - 1]);
+                gTasks[taskId].func = sub_80FDA94;
+            }
+            else
+            {
+                playerDir = player_get_direction_lower_nybble();
+                for (i = 0; i < 4; i++)
+                {
+                    if (playerDir == gUnknown_085920E4[i])
+                        data[5] = (i + 1) & 3;
+                }
+                gTasks[taskId].func = sub_80FDADC;
+                data[3] = 0;
+                data[2] = 0;
+            }
+            return;
+        }
+        PlaySE(SE_DAUGI);
+        data[4]++;
+    }
+    data[3] = (data[3] + 1) & 0x1F;
+}
+
+void sub_80FD5CC(u8 taskId)
+{
+    sub_8197434(0, 1);
+    sub_80984F4();
+    ScriptContext2_Disable();
+    DestroyTask(taskId);
+}
+
+bool8 ItemfinderCheckForHiddenItems(struct MapEvents *events, u8 taskId)
+{
+    int distanceX, distanceY;
+    s16 x, y, i, newDistanceX, newDistanceY;
+    PlayerGetDestCoords(&x, &y);
+    gTasks[taskId].data[2] = FALSE;
+    for (i = 0; i < events->bgEventCount; i++)
+    {
+        if (events->bgEvents[i].kind == 7 && !FlagGet(events->bgEvents[i].bgUnion.hiddenItem.hiddenItemId + 0x1F4))
+        {
+            distanceX = (u16)events->bgEvents[i].x + 7;
+            newDistanceX = distanceX - x;
+            distanceY = (u16)events->bgEvents[i].y + 7;
+            newDistanceY = distanceY - y;
+
+            if ((u16)(newDistanceX + 7) < 15 && (newDistanceY >= -5) && (newDistanceY < 6))
+                sub_80FD8E0(taskId, newDistanceX, newDistanceY);
+        }
+    }
+
+    sub_80FD7C8(taskId);
+    if (gTasks[taskId].data[2] == TRUE)
+        return TRUE;
+    else
+        return FALSE;
+}
+
+bool8 sub_80FD6D4(struct MapEvents *events, s16 x, s16 y)
+{
+    u8 bgEventCount = events->bgEventCount;
+    struct BgEvent *bgEvent = events->bgEvents;
+    int i;
+
+    for (i = 0; i < bgEventCount; i++)
+    {
+        if (bgEvent[i].kind == 7 && x == (u16)bgEvent[i].x && y == (u16)bgEvent[i].y) // hidden item and coordinates matches x and y passed?
+        {
+            if (!FlagGet(bgEvent[i].bgUnion.hiddenItem.hiddenItemId + 0x1F4))
+                return TRUE;
+            else
+                return FALSE;
+        }
+    }
+    return FALSE;
+}
+
+bool8 sub_80FD730(struct MapConnection *connection, int x, int y)
+{
+    struct MapHeader *mapHeader;
+    u16 localX, localY;
+    u32 localOffset;
+    s32 localLength;
+
+    mapHeader = mapconnection_get_mapheader(connection);
+
+    switch (connection->direction)
+    {
+    // same weird temp variable behavior seen in sub_80FD6D4
+    case 2:
+        localOffset = connection->offset + 7;
+        localX = x - localOffset;
+        localLength = mapHeader->mapData->height - 7;
+        localY = localLength + y; // additions are reversed for some reason
+        break;
+    case 1:
+        localOffset = connection->offset + 7;
+        localX = x - localOffset;
+        localLength = gMapHeader.mapData->height + 7;
+        localY = y - localLength;
+        break;
+    case 3:
+        localLength = mapHeader->mapData->width - 7;
+        localX = localLength + x; // additions are reversed for some reason
+        localOffset = connection->offset + 7;
+        localY = y - localOffset;
+        break;
+    case 4:
+        localLength = gMapHeader.mapData->width + 7;
+        localX = x - localLength;
+        localOffset = connection->offset + 7;
+        localY = y - localOffset;
+        break;
+    default:
+        return FALSE;
+    }
+    return sub_80FD6D4(mapHeader->events, localX, localY);
+}
+
+void sub_80FD7C8(u8 taskId)
+{
+    s16 x, y;
+    s16 curX, curY;
+    s16 width = gMapHeader.mapData->width + 7;
+    s16 height = gMapHeader.mapData->height + 7;
+
+    s16 var1 = 7;
+    s16 var2 = 7;
+
+    PlayerGetDestCoords(&x, &y);
+
+    for (curX = x - 7; curX <= x + 7; curX++)
+    {
+        for (curY = y - 5; curY <= y + 5; curY++)
+        {
+            if (var1 > curX
+             || curX >= width
+             || var2 > curY
+             || curY >= height)
+            {
+                struct MapConnection *conn = sub_8088A8C(curX, curY);
+                if (conn && sub_80FD730(conn, curX, curY) == TRUE)
+                    sub_80FD8E0(taskId, curX - x, curY - y);
+            }
+        }
+    }
+}
+
+void sub_80FD8E0(u8 taskId, s16 x, s16 y)
+{
+    s16 *data = gTasks[taskId].data;
+    s16 var1, var2, var3, var4;
+
+    if (data[2] == FALSE)
+    {
+        data[0] = x;
+        data[1] = y;
+        data[2] = TRUE;
+    }
+    else
+    {
+        // data[0] and data[1] contain the player's coordinates.
+        // x and y contain the item's coordinates.
+        if (data[0] < 0)
+            var1 = data[0] * -1; // item is to the left
+        else
+            var1 = data[0]; // item is to the right
+
+        if (data[1] < 0)
+            var2 = data[1] * -1; // item is to the north
+        else
+            var2 = data[1]; // item is to the south
+
+        if (x < 0)
+            var3 = x * -1;
+        else
+            var3 = x;
+
+        if (y < 0)
+            var4 = y * -1;
+        else
+            var4 = y;
+
+        if (var1 + var2 > var3 + var4)
+        {
+            data[0] = x;
+            data[1] = y;
+        }
+        else
+        {
+            if (var1 + var2 == var3 + var4 && (var2 > var4 || (var2 == var4 && data[1] < y)))
+            {
+                data[0] = x;
+                data[1] = y;
+            }
+        }
+    }
+}
+
+u8 sub_80FD9B0(s16 itemX, s16 itemY)
+{
+    s16 abX, abY;
+
+    if (itemX == 0 && itemY == 0)
+        return DIR_NONE; // player is standing on the item.
+
+    // get absolute X distance.
+    if (itemX < 0)
+        abX = itemX * -1;
+    else
+        abX = itemX;
+
+    // get absolute Y distance.
+    if (itemY < 0)
+        abY = itemY * -1;
+    else
+        abY = itemY;
+
+    if (abX > abY)
+    {
+        if (itemX < 0)
+            return DIR_EAST;
+        else
+            return DIR_NORTH;
+    }
+    else
+    {
+        if (abX < abY)
+        {
+            if (itemY < 0)
+                return DIR_SOUTH;
+            else
+                return DIR_WEST;
+        }
+        if (abX == abY)
+        {
+            if (itemY < 0)
+                return DIR_SOUTH;
+            else
+                return DIR_WEST;
+        }
+        return DIR_NONE; // should never get here. return something so it doesnt crash.
+    }
+}
+
+void sub_80FDA24(u8 direction)
+{
+    FieldObjectClearAnimIfSpecialAnimFinished(&gMapObjects[GetFieldObjectIdByLocalIdAndMap(0xFF, 0, 0)]);
+    FieldObjectClearAnim(&gMapObjects[GetFieldObjectIdByLocalIdAndMap(0xFF, 0, 0)]);
+    npc_sync_anim_pause_bits(&gMapObjects[GetFieldObjectIdByLocalIdAndMap(0xFF, 0, 0)]);
+    PlayerTurnInPlace(direction);
+}
+
+void sub_80FDA94(u8 taskId)
+{
+    if (FieldObjectCheckIfSpecialAnimFinishedOrInactive(&gMapObjects[GetFieldObjectIdByLocalIdAndMap(0xFF, 0, 0)]) == TRUE)
+        DisplayItemMessageOnField(taskId, gText_ItemFinderNearby, sub_80FD5CC);
+}
+
+void sub_80FDADC(u8 taskId)
+{
+    s16 *data = gTasks[taskId].data;
+
+    if (FieldObjectCheckIfSpecialAnimFinishedOrInactive(&gMapObjects[GetFieldObjectIdByLocalIdAndMap(0xFF, 0, 0)]) == TRUE
+    || data[2] == FALSE)
+    {
+        sub_80FDA24(gUnknown_085920E4[data[5]]);
+        data[2] = 1;
+        data[5] = (data[5] + 1) & 3;
+        data[3]++;
+
+        if (data[3] == 4)
+            DisplayItemMessageOnField(taskId, gText_ItemFinderOnTop, sub_80FD5CC);
+    }
+}
+
+void ItemUseOutOfBattle_PokeblockCase(u8 taskId)
+{
+    if (sub_81221AC() == TRUE)
+    {
+        DisplayDadsAdviceCannotUseItemMessage(taskId, gTasks[taskId].data[3]);
+    }
+    else if (gTasks[taskId].data[3] != TRUE)
+    {
+        *gUnknown_0203CE54 = sub_80FDBEC;
+        unknown_ItemMenu_Confirm(taskId);
+    }
+    else
+    {
+        gFieldCallback = sub_80AF6D4;
+        FadeScreen(1, 0);
+        gTasks[taskId].func = sub_80FDC00;
+    }
+}
+
+void sub_80FDBEC(void)
+{
+    OpenPokeblockCase(0, bag_menu_mail_related);
+}
+
+void sub_80FDC00(u8 taskId)
+{
+    if (!gPaletteFade.active)
+    {
+        overworld_free_bg_tilemaps();
+        OpenPokeblockCase(0, c2_exit_to_overworld_2_switch);
+        DestroyTask(taskId);
+    }
+}
+
+void ItemUseOutOfBattle_CoinCase(u8 taskId)
+{
+    ConvertIntToDecimalStringN(gStringVar1, GetCoins(), 0, 4);
+    StringExpandPlaceholders(gStringVar4, gText_CoinCase);
+
+    if (!gTasks[taskId].data[3])
+    {
+        DisplayItemMessage(taskId, 1, gStringVar4, bag_menu_inits_lists_menu);
+    }
+    else
+    {
+        DisplayItemMessageOnField(taskId, gStringVar4, CleanUpAfterFailingToUseRegisteredKeyItemOnField);
+    }
+}
+
+void ItemUseOutOfBattle_PowderJar(u8 taskId)
+{
+    ConvertIntToDecimalStringN(gStringVar1, sub_80247BC(), 0, 5);
+    StringExpandPlaceholders(gStringVar4, gText_PowderQty);
+
+    if (!gTasks[taskId].data[3])
+    {
+        DisplayItemMessage(taskId, 1, gStringVar4, bag_menu_inits_lists_menu);
+    }
+    else
+    {
+        DisplayItemMessageOnField(taskId, gStringVar4, CleanUpAfterFailingToUseRegisteredKeyItemOnField);
+    }
+}
+
+void sub_80FDD10(u8 taskId)
+{
+    if (IsPlayerFacingPlantedBerryTree() == TRUE)
+    {
+        gUnknown_0203A0F4 = sub_80FDD74;
+        gFieldCallback = MapPostLoadHook_UseItem;
+        *gUnknown_0203CE54 = c2_exit_to_overworld_2_switch;
+        unknown_ItemMenu_Confirm(taskId);
+    }
+    else
+    {
+        ItemId_GetFieldFunc(gSpecialVar_ItemId)(taskId);
+    }
+}
+
+void sub_80FDD74(u8 taskId)
+{
+    RemoveBagItem(gSpecialVar_ItemId, 1);
+    ScriptContext2_Enable();
+    ScriptContext1_SetupScript(Route102_EventScript_274482);
+    DestroyTask(taskId);
+}
+
+void ItemUseOutOfBattle_WailmerPail(u8 taskId)
+{
+    if (sub_80FDE2C() == TRUE)
+    {
+        gUnknown_0203A0F4 = sub_80FDE7C;
+        SetUpItemUseOnFieldCallback(taskId);
+    }
+    else if (TryToWaterBerryTree() == TRUE)
+    {
+        gUnknown_0203A0F4 = sub_80FDE08;
+        SetUpItemUseOnFieldCallback(taskId);
+    }
+    else
+    {
+        DisplayDadsAdviceCannotUseItemMessage(taskId, gTasks[taskId].data[3]);
+    }
+}
+
+void sub_80FDE08(u8 taskId)
+{
+    ScriptContext2_Enable();
+    ScriptContext1_SetupScript(Route102_EventScript_2744C0);
+    DestroyTask(taskId);
+}
+
+bool8 sub_80FDE2C(void)
+{
+    u16 x, y;
+    u8 z;
+    u8 objId;
+    GetXYCoordsOneStepInFrontOfPlayer(&x, &y);
+    z = PlayerGetZCoord();
+    objId = GetFieldObjectIdByXYZ(x, y, z);
+    if (objId == 16 || gMapObjects[objId].graphicsId != 0xE4)
+        return FALSE;
+    else
+        return TRUE;
+}
+
+void sub_80FDE7C(u8 taskId)
+{
+    ScriptContext2_Enable();
+    ScriptContext1_SetupScript(BattleFrontier_OutsideEast_EventScript_242CFC);
+    DestroyTask(taskId);
+}
+
+void ItemUseOutOfBattle_Medicine(u8 taskId)
+{
+    gUnknown_03006328 = ItemUseCB_Medicine;
+    SetUpItemUseCallback(taskId);
+}
+
+void ItemUseOutOfBattle_ReduceEV(u8 taskId)
+{
+    gUnknown_03006328 = sub_81B67C8;
+    SetUpItemUseCallback(taskId);
+}
+
+void ItemUseOutOfBattle_SacredAsh(u8 taskId)
+{
+    gUnknown_03006328 = sub_81B79E8;
+    SetUpItemUseCallback(taskId);
+}
+
+void ItemUseOutOfBattle_PPRecovery(u8 taskId)
+{
+    gUnknown_03006328 = dp05_ether;
+    SetUpItemUseCallback(taskId);
+}
+
+void ItemUseOutOfBattle_PPUp(u8 taskId)
+{
+    gUnknown_03006328 = dp05_pp_up;
+    SetUpItemUseCallback(taskId);
+}
+
+void ItemUseOutOfBattle_RareCandy(u8 taskId)
+{
+    gUnknown_03006328 = dp05_rare_candy;
+    SetUpItemUseCallback(taskId);
+}
+
+void ItemUseOutOfBattle_TMHM(u8 taskId)
+{
+    if (gSpecialVar_ItemId >= ITEM_HM01)
+        DisplayItemMessage(taskId, 1, gText_BootedUpHM, sub_80FDF90); // HM
+    else
+        DisplayItemMessage(taskId, 1, gText_BootedUpTM, sub_80FDF90); // TM
+}
+
+void sub_80FDF90(u8 taskId)
+{
+    PlaySE(SE_PC_LOGIN);
+    gTasks[taskId].func = task08_0809AD8C;
+}
+
+void task08_0809AD8C(u8 taskId)
+{
+    if (gMain.newKeys & (A_BUTTON | B_BUTTON))
+    {
+        StringCopy(gStringVar1, gMoveNames[ItemIdToBattleMoveId(gSpecialVar_ItemId)]);
+        StringExpandPlaceholders(gStringVar4, gText_TMHMContainedVar1);
+        DisplayItemMessage(taskId, 1, gStringVar4, sub_80FE024);
+    }
+}
+
+void sub_80FE024(u8 taskId)
+{
+    bag_menu_yes_no(taskId, 6, gUnknown_085920E8);
+}
+
+void sub_80FE03C(u8 taskId)
+{
+    gUnknown_03006328 = sub_81B6DC4;
+    SetUpItemUseCallback(taskId);
+}
+
+void sub_80FE058(void)
+{
+    RemoveBagItem(gSpecialVar_ItemId, 1);
+    CopyItemName(gSpecialVar_ItemId, gStringVar2);
+    StringExpandPlaceholders(gStringVar4, gText_PlayerUsedVar2);
+    if (!InBattlePyramid())
+    {
+        sub_81AB9A8(ItemId_GetPocket(gSpecialVar_ItemId));
+        sub_81ABA88(ItemId_GetPocket(gSpecialVar_ItemId));
+    }
+    else
+    {
+        sub_81C5924();
+        sub_81C59BC();
+    }
+}
+
+void ItemUseOutOfBattle_Repel(u8 taskId)
+{
+    if (VarGet(VAR_REPEL_STEP_COUNT) == 0)
+        gTasks[taskId].func = sub_80FE124;
+    else if (!InBattlePyramid())
+        DisplayItemMessage(taskId, 1, gText_RepelEffectsLingered, bag_menu_inits_lists_menu);
+    else
+        DisplayItemMessageInBattlePyramid(taskId, gText_RepelEffectsLingered, sub_81C6714);
+}
+
+void sub_80FE124(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+
+    if (++data[8] > 7)
+    {
+        data[8] = 0;
+        PlaySE(SE_TU_SAA);
+        gTasks[taskId].func = sub_80FE164;
+    }
+}
+
+void sub_80FE164(u8 taskId)
+{
+    if (!IsSEPlaying())
+    {
+        VarSet(VAR_REPEL_STEP_COUNT, ItemId_GetHoldEffectParam(gSpecialVar_ItemId));
+        sub_80FE058();
+        if (!InBattlePyramid())
+            DisplayItemMessage(taskId, 1, gStringVar4, bag_menu_inits_lists_menu);
+        else
+            DisplayItemMessageInBattlePyramid(taskId, gStringVar4, sub_81C6714);
+    }
+}
+
+void sub_80FE1D0(u8 taskId)
+{
+    if(++gTasks[taskId].data[8] > 7)
+    {
+        PlaySE(SE_BIDORO);
+        if (!InBattlePyramid())
+            DisplayItemMessage(taskId, 1, gStringVar4, bag_menu_inits_lists_menu);
+        else
+            DisplayItemMessageInBattlePyramid(taskId, gStringVar4, sub_81C6714);
+    }
+}
+
+void ItemUseOutOfBattle_BlackWhiteFlute(u8 taskId)
+{
+    CopyItemName(gSpecialVar_ItemId, gStringVar2);
+    if (gSpecialVar_ItemId == ITEM_WHITE_FLUTE)
+    {
+        FlagSet(FLAG_SYS_ENC_UP_ITEM);
+        FlagClear(FLAG_SYS_ENC_DOWN_ITEM);
+        StringExpandPlaceholders(gStringVar4, gText_UsedVar2WildLured);
+    }
+    else
+    {
+        FlagSet(FLAG_SYS_ENC_DOWN_ITEM);
+        FlagClear(FLAG_SYS_ENC_UP_ITEM);
+        StringExpandPlaceholders(gStringVar4, gText_UsedVar2WildRepelled);
+    }
+    gTasks[taskId].data[8] = 0;
+    gTasks[taskId].func = sub_80FE1D0;
+}
+
+void task08_080A1C44(u8 taskId)
+{
+    player_avatar_init_params_reset();
+    sub_80B7CC8();
+    DestroyTask(taskId);
+}
+
+void re_escape_rope(u8 taskId)
+{
+    flagmods_08054D70();
+    sub_80FE058();
+    gTasks[taskId].data[0] = 0;
+    DisplayItemMessageOnField(taskId, gStringVar4, task08_080A1C44);
+}
+
+bool8 sub_80FE314(void)
+{
+    if (gMapHeader.flags & 2)
+        return TRUE;
+    else
+        return FALSE;
+}
+
+void ItemUseOutOfBattle_EscapeRope(u8 taskId)
+{
+    if (sub_80FE314() == TRUE)
+    {
+        gUnknown_0203A0F4 = re_escape_rope;
+        SetUpItemUseOnFieldCallback(taskId);
+    }
+    else
+    {
+        DisplayDadsAdviceCannotUseItemMessage(taskId, gTasks[taskId].data[3]);
+    }
+}
+
+void ItemUseOutOfBattle_EvolutionStone(u8 taskId)
+{
+    gUnknown_03006328 = sub_81B7C74;
+    SetUpItemUseCallback(taskId);
+}
+
+void ItemUseInBattle_PokeBall(u8 taskId)
+{
+    if (IsPlayerPartyAndPokemonStorageFull() == FALSE) // have room for mon?
+    {
+        RemoveBagItem(gSpecialVar_ItemId, 1);
+        if (!InBattlePyramid())
+            unknown_ItemMenu_Confirm(taskId);
+        else
+            sub_81C5B14(taskId);
+    }
+    else if (!InBattlePyramid())
+    {
+        DisplayItemMessage(taskId, 1, gText_BoxFull, bag_menu_inits_lists_menu);
+    }
+    else
+        DisplayItemMessageInBattlePyramid(taskId, gText_BoxFull, sub_81C6714);
+}
+
+void sub_80FE408(u8 taskId)
+{
+    if (gMain.newKeys & (A_BUTTON | B_BUTTON))
+    {
+        if (!InBattlePyramid())
+            unknown_ItemMenu_Confirm(taskId);
+        else
+            sub_81C5B14(taskId);
+    }
+}
+
+void sub_80FE440(u8 taskId)
+{
+    if(++gTasks[taskId].data[8] > 7)
+    {
+        PlaySE(SE_KAIFUKU);
+        RemoveBagItem(gSpecialVar_ItemId, 1);
+        if (!InBattlePyramid())
+            DisplayItemMessage(taskId, 1, sub_806CF78(gSpecialVar_ItemId), sub_80FE408);
+        else
+            DisplayItemMessageInBattlePyramid(taskId, sub_806CF78(gSpecialVar_ItemId), sub_80FE408);
+    }
+}
+
+void ItemUseInBattle_StatIncrease(u8 taskId)
+{
+    u16 partyId = gBattlerPartyIndexes[gBankInMenu];
+
+    if (ExecuteTableBasedItemEffect_(&gPlayerParty[partyId], gSpecialVar_ItemId, partyId, 0) != FALSE)
+    {
+        if (!InBattlePyramid())
+            DisplayItemMessage(taskId, 1, gText_WontHaveEffect, bag_menu_inits_lists_menu);
+        else
+            DisplayItemMessageInBattlePyramid(taskId, gText_WontHaveEffect, sub_81C6714);
+    }
+    else
+    {
+        gTasks[taskId].func = sub_80FE440;
+        gTasks[taskId].data[8] = 0;
+    }
+}
+
+void sub_80FE54C(u8 taskId)
+{
+    if (!InBattlePyramid())
+    {
+        *gUnknown_0203CE54 = sub_81B89F0;
+        unknown_ItemMenu_Confirm(taskId);
+    }
+    else
+    {
+        *gUnknown_0203CF2C = sub_81B89F0;
+        sub_81C5B14(taskId);
+    }
+}
+
+void ItemUseInBattle_Medicine(u8 taskId)
+{
+    gUnknown_03006328 = ItemUseCB_Medicine;
+    sub_80FE54C(taskId);
+}
+
+void sub_80FE5AC(u8 taskId)
+{
+    gUnknown_03006328 = sub_81B79E8;
+    sub_80FE54C(taskId);
+}
+
+void ItemUseInBattle_PPRecovery(u8 taskId)
+{
+    gUnknown_03006328 = dp05_ether;
+    sub_80FE54C(taskId);
+}
+
+void ItemUseInBattle_Escape(u8 taskId)
+{
+
+    if((gBattleTypeFlags & BATTLE_TYPE_TRAINER) == FALSE)
+    {
+        sub_80FE058();
+        if (!InBattlePyramid())
+            DisplayItemMessage(taskId, 1, gStringVar4, unknown_ItemMenu_Confirm);
+        else
+            DisplayItemMessageInBattlePyramid(taskId, gStringVar4, sub_81C5B14);
+    }
+    else
+    {
+        DisplayDadsAdviceCannotUseItemMessage(taskId, gTasks[taskId].data[3]);
+    }
+}
+
+void ItemUseOutOfBattle_EnigmaBerry(u8 taskId)
+{
+    switch (GetItemEffectType(gSpecialVar_ItemId) - 1)
+    {
+    case 1:
+    case 2:
+    case 3:
+    case 4:
+    case 5:
+    case 6:
+    case 10:
+    case 11:
+    case 12:
+    case 13:
+    case 14:
+    case 15:
+    case 16:
+        gTasks[taskId].data[4] = 1;
+        ItemUseOutOfBattle_Medicine(taskId);
+        break;
+    case 9:
+        gTasks[taskId].data[4] = 1;
+        ItemUseOutOfBattle_SacredAsh(taskId);
+        break;
+    case 0:
+        gTasks[taskId].data[4] = 1;
+        ItemUseOutOfBattle_RareCandy(taskId);
+        break;
+    case 18:
+    case 19:
+        gTasks[taskId].data[4] = 1;
+        ItemUseOutOfBattle_PPUp(taskId);
+        break;
+    case 20:
+        gTasks[taskId].data[4] = 1;
+        ItemUseOutOfBattle_PPRecovery(taskId);
+        break;
+    default:
+        gTasks[taskId].data[4] = 4;
+        ItemUseOutOfBattle_CannotUse(taskId);
+    }
+}
+
+void ItemUseInBattle_EnigmaBerry(u8 taskId)
+{
+    switch (GetItemEffectType(gSpecialVar_ItemId))
+    {
+    case 0:
+        ItemUseInBattle_StatIncrease(taskId);
+        break;
+    case 2:
+    case 3:
+    case 4:
+    case 5:
+    case 6:
+    case 7:
+    case 8:
+    case 9:
+    case 11:
+        ItemUseInBattle_Medicine(taskId);
+        break;
+    case 21:
+        ItemUseInBattle_PPRecovery(taskId);
+        break;
+    default:
+        ItemUseOutOfBattle_CannotUse(taskId);
+    }
+}
+
+void ItemUseOutOfBattle_CannotUse(u8 taskId)
+{
+    DisplayDadsAdviceCannotUseItemMessage(taskId, gTasks[taskId].data[3]);
+}