Start decompiling shop.c

include/shop.h

@@ -3,6 +3,40 @@
 
 extern EWRAM_DATA struct ItemSlot gUnknown_02039F80[3];
 
+enum
+{
+    MART_TYPE_0, // normal mart
+    MART_TYPE_1,
+    MART_TYPE_2,
+};
+
+struct MartInfo
+{
+    /*0x0*/ void (* callback) (void);
+    /*0x4*/ const struct MenuAction *menuActions;
+    /*0x8*/ const u16 *itemList;
+    /*0xC*/ u16 itemCount;
+    /*0xE*/ u8 windowId;
+    /*0xF*/ u8 martType;
+};
+
+struct BuyMenuLabel
+{
+	u8 label[16];
+};
+
+struct ShopData
+{
+	/*0x0000*/ u8 filler0[0x2004];
+	/*0x2004*/ u16 unk2004;
+	/*0x2006*/ u8 filler2006[0x5];
+	/*0x200B*/ u8 unk200B;
+	/*0x200C*/ u8 unk200C;
+	/*0x200D*/ s8 unk200D;
+	/*0x200E*/ s8 unk200E;
+	/*0x200F*/ u8 filler200F[0xA1];
+};
+
 void CreatePokemartMenu(const u16 *);
 void CreateDecorationShop1Menu(const u16 *);
 void CreateDecorationShop2Menu(const u16 *);

include/strings.h

@@ -151,8 +151,6 @@ extern const u8 gMenuText_Confirm[];
 extern const u8 gMenuText_Show[];
 extern const u8 gMenuText_Give2[];
 
-extern const u8 gText_Cancel2[];
-
 extern const u8 gText_WithdrawPokemon[];
 extern const u8 gText_WithdrawMonDescription[];
 extern const u8 gText_DepositPokemon[];
@@ -843,4 +841,9 @@ extern const u8 gText_TwoDashes[];
 
 extern const u8 *const gReturnToXStringsTable2[];
 
+extern const u8 gText_CanIHelpWithAnythingElse[];
+extern const u8 gText_AnythingElseICanHelp[];
+extern const u8 gText_QuitShopping[];
+extern const u8 gText_PokedollarVar1[];
+
 #endif //GUARD_STRINGS_H

include/tv.h

@@ -50,5 +50,6 @@ void PutBattleUpdateOnTheAir(u8 opponentLinkPlayerId, u16 move, u16 speciesPlaye
 void BravoTrainerPokemonProfile_BeforeInterview1(u16 move);
 void UpdateTVScreensOnMap(int, int);
 void TV_PrintIntToStringVar(u8 varIdx, int value);
+void SaveRecordedItemPurchasesForTVShow(void);
 
 #endif //GUARD_TV_H

ld_script.txt

@@ -138,6 +138,7 @@ SECTIONS {
         src/item.o(.text);
         src/contest.o(.text);
         asm/contest.o(.text);
+        src/shop.o(.text);
         asm/shop.o(.text);
         src/berry.o(.text);
         asm/script_menu.o(.text);

src/money.c

@@ -6,10 +6,9 @@
 #include "menu.h"
 #include "window.h"
 #include "sprite.h"
+#include "strings.h"
 #include "decompress.h"
 
-extern const u8 gText_PokedollarVar1[];
-
 extern const u8 gMenuMoneyGfx[];
 extern const u8 gMenuMoneyPal[];
 

src/shop.c

@@ -0,0 +1,360 @@
+#include "global.h"
+#include "bg.h"
+#include "decoration.h"
+#include "field_screen.h"
+#include "field_weather.h"
+#include "international_string_util.h"
+#include "item.h"
+#include "list_menu.h"
+#include "main.h"
+#include "malloc.h"
+#include "menu.h"
+#include "menu_helpers.h"
+#include "overworld.h"
+#include "palette.h"
+#include "scanline_effect.h"
+#include "script.h"
+#include "shop.h"
+#include "sound.h"
+#include "string_util.h"
+#include "strings.h"
+#include "tv.h"
+#include "constants/rgb.h"
+#include "constants/songs.h"
+
+extern struct ShopData *gShopDataPtr;
+extern struct ListMenuItem *gUnknown_02039F74;
+extern u8 (*gUnknown_02039F78)[16];
+extern struct MartInfo gMartInfo;
+
+extern const struct WindowTemplate gUnknown_08589A38[2];
+extern const struct MenuAction gUnknown_08589A10[3];
+extern const struct MenuAction gUnknown_08589A28[2];
+extern const struct ListMenuTemplate gUnknown_08589A48;
+extern const u8 gUnknown_08589AB3[];
+
+static void Task_ShopMenu(u8 taskId);
+void HandleShopMenuQuit(u8 taskId);
+void CB2_InitBuyMenu(void);
+static void Task_GoToBuyOrSellMenu(u8 taskId);
+void CB2_GoToSellMenu(void);
+void MapPostLoadHook_ExitBuyOrSellMenu(void);
+void Task_ExitSellMenu(u8 taskId);
+void ReturnToShopMenuAfterExitingSellMenu(u8 taskId);
+void BuyMenuDrawGraphics(void);
+void BuyMenuAddScrollIndicatorArrows(void);
+void Task_BuyMenu(u8 taskId);
+void BuyMenuBuildListMenuTemplate(void);
+void BuyMenuInitBgs(void);
+void BuyMenuInitWindows(void);
+void BuyMenuDecompressBgGraphics(void);
+void BuyMenuSetListEntry(struct ListMenuItem*, u16, u8*);
+void BuyMenuAddItemIcon(u16, u8);
+void BuyMenuRemoveItemIcon(u16, u8);
+void BuyMenuPrint(u8, const u8*, u8, u8, u8, u8);
+
+
+/*static*/ u8 CreateShopMenu(u8 martType)
+{
+    int numMenuItems;
+
+    ScriptContext2_Enable();
+    gMartInfo.martType = martType;
+
+    if (martType == MART_TYPE_0)
+    {
+        struct WindowTemplate winTemplate;
+        winTemplate = gUnknown_08589A38[0];
+        winTemplate.width = GetMaxWidthInMenuTable(gUnknown_08589A10, ARRAY_COUNT(gUnknown_08589A10));
+        gMartInfo.windowId = AddWindow(&winTemplate);
+        gMartInfo.menuActions = gUnknown_08589A10;
+        numMenuItems = ARRAY_COUNT(gUnknown_08589A10);
+    }
+    else
+    {
+        struct WindowTemplate winTemplate;
+        winTemplate = gUnknown_08589A38[1];
+        winTemplate.width = GetMaxWidthInMenuTable(gUnknown_08589A28, ARRAY_COUNT(gUnknown_08589A28));
+        gMartInfo.windowId = AddWindow(&winTemplate);
+        gMartInfo.menuActions = gUnknown_08589A28;
+        numMenuItems = ARRAY_COUNT(gUnknown_08589A28);
+    }
+
+    SetStandardWindowBorderStyle(gMartInfo.windowId, 0);
+    PrintMenuTable(gMartInfo.windowId, numMenuItems, gMartInfo.menuActions);
+    InitMenuInUpperLeftCornerPlaySoundWhenAPressed(gMartInfo.windowId, numMenuItems, 0);
+    PutWindowTilemap(gMartInfo.windowId);
+    CopyWindowToVram(gMartInfo.windowId, 1);
+
+    return CreateTask(Task_ShopMenu, 8);
+}
+
+/*static*/ void SetShopMenuCallback(void (* callback)(void))
+{
+    gMartInfo.callback = callback;
+}
+
+/*static*/ void SetShopItemsForSale(const u16 *items)
+{
+    u16 i = 0;
+
+    gMartInfo.itemList = items;
+    gMartInfo.itemCount = 0;
+
+    while (gMartInfo.itemList[i])
+    {
+        gMartInfo.itemCount++;
+        i++;
+    }
+}
+
+static void Task_ShopMenu(u8 taskId)
+{
+    s8 inputCode = Menu_ProcessInputNoWrapAround();
+    switch (inputCode)
+    {
+    case -2:
+        break;
+    case -1:
+        PlaySE(SE_SELECT);
+        HandleShopMenuQuit(taskId);
+        break;
+    default:
+        gMartInfo.menuActions[inputCode].func.void_u8(taskId);
+        break;
+    }
+}
+
+void HandleShopMenuBuy(u8 taskId)
+{
+    s16 *taskData = gTasks[taskId].data;
+    taskData[8] = (u32)CB2_InitBuyMenu >> 16;
+    taskData[9] = (u32)CB2_InitBuyMenu;
+    gTasks[taskId].func = Task_GoToBuyOrSellMenu;
+    FadeScreen(1, 0);
+}
+
+void HandleShopMenuSell(u8 taskId)
+{
+    s16 *taskData = gTasks[taskId].data;
+    taskData[8] = (u32)CB2_GoToSellMenu >> 16;
+    taskData[9] = (u32)CB2_GoToSellMenu;
+    gTasks[taskId].func = Task_GoToBuyOrSellMenu;
+    FadeScreen(1, 0);
+}
+
+void CB2_ExitSellMenu(void)
+{
+    gFieldCallback = MapPostLoadHook_ExitBuyOrSellMenu;
+    SetMainCallback2(CB2_ReturnToField);
+}
+
+/*static*/ void HandleShopMenuQuit(u8 taskId)
+{
+    sub_8198070(gMartInfo.windowId, 2);
+    RemoveWindow(gMartInfo.windowId);
+    SaveRecordedItemPurchasesForTVShow();
+    ScriptContext2_Disable();
+    DestroyTask(taskId);
+
+    if (gMartInfo.callback)
+        gMartInfo.callback();
+}
+
+static void Task_GoToBuyOrSellMenu(u8 taskId)
+{
+    s16 *taskData = gTasks[taskId].data;
+    if (!gPaletteFade.active)
+    {
+        DestroyTask(taskId);
+        SetMainCallback2((void *)((u16)taskData[8] << 16 | (u16)taskData[9]));
+    }
+}
+
+void MapPostLoadHook_ExitBuyOrSellMenu(void)
+{
+    pal_fill_black();
+    CreateTask(Task_ExitSellMenu, 8);
+}
+
+void Task_ExitSellMenu(u8 taskId)
+{
+    if (IsWeatherNotFadingIn() == TRUE)
+    {
+        if (gMartInfo.martType == MART_TYPE_2)
+            DisplayItemMessageOnField(taskId, gText_CanIHelpWithAnythingElse, ReturnToShopMenuAfterExitingSellMenu);
+        else
+            DisplayItemMessageOnField(taskId, gText_AnythingElseICanHelp, ReturnToShopMenuAfterExitingSellMenu);
+    }
+}
+
+void ReturnToShopMenuAfterExitingSellMenu(u8 taskId)
+{
+    CreateShopMenu(gMartInfo.martType);
+    DestroyTask(taskId);
+}
+
+void CB2_BuyMenu(void)
+{
+    RunTasks();
+    AnimateSprites();
+    BuildOamBuffer();
+    do_scheduled_bg_tilemap_copies_to_vram();
+    UpdatePaletteFade();
+}
+
+void VBlankCB_BuyMenu(void)
+{
+    LoadOam();
+    ProcessSpriteCopyRequests();
+    TransferPlttBuffer();
+}
+
+void CB2_InitBuyMenu(void)
+{
+    u8 taskId;
+
+    switch (gMain.state)
+    {
+    case 0:
+        SetVBlankHBlankCallbacksToNull();
+        CpuFastFill(0, (void *)OAM, 0x400);
+        ScanlineEffect_Stop();
+        reset_temp_tile_data_buffers();
+        FreeAllSpritePalettes();
+        ResetPaletteFade();
+        ResetSpriteData();
+        ResetTasks();
+        clear_scheduled_bg_copies_to_vram();
+        gShopDataPtr = AllocZeroed(sizeof(struct ShopData));
+        gShopDataPtr->unk200B = 0xFF;
+        gShopDataPtr->unk200D = -1;
+        gShopDataPtr->unk200E = -1;
+        BuyMenuBuildListMenuTemplate();
+        BuyMenuInitBgs();
+        FillBgTilemapBufferRect_Palette0(0, 0, 0, 0, 0x20, 0x20);
+        FillBgTilemapBufferRect_Palette0(1, 0, 0, 0, 0x20, 0x20);
+        FillBgTilemapBufferRect_Palette0(2, 0, 0, 0, 0x20, 0x20);
+        FillBgTilemapBufferRect_Palette0(3, 0, 0, 0, 0x20, 0x20);
+        BuyMenuInitWindows();
+        BuyMenuDecompressBgGraphics();
+        gMain.state++;
+        break;
+    case 1:
+        if (!free_temp_tile_data_buffers_if_possible())
+            gMain.state++;
+        break;
+    default:
+        BuyMenuDrawGraphics();
+        BuyMenuAddScrollIndicatorArrows();
+        taskId = CreateTask(Task_BuyMenu, 8);
+        gTasks[taskId].data[7] = ListMenuInit(&gMultiuseListMenuTemplate, 0, 0);
+        BlendPalettes(0xFFFFFFFF, 0x10, RGB_BLACK);
+        BeginNormalPaletteFade(0xFFFFFFFF, 0, 0x10, 0, RGB_BLACK);
+        SetVBlankCallback(VBlankCB_BuyMenu);
+        SetMainCallback2(CB2_BuyMenu);
+        break;
+    }
+}
+
+void BuyMenuFreeMemory(void)
+{
+    Free(gShopDataPtr);
+    Free(gUnknown_02039F74);
+    Free(gUnknown_02039F78);
+    FreeAllWindowBuffers();
+}
+
+void BuyMenuBuildListMenuTemplate(void)
+{
+    u16 i;
+    u16 itemCount;
+
+    gUnknown_02039F74 = Alloc((gMartInfo.itemCount + 1) * sizeof(*gUnknown_02039F74));
+    gUnknown_02039F78 = Alloc((gMartInfo.itemCount + 1) * sizeof(*gUnknown_02039F78));
+    for (i = 0; i < gMartInfo.itemCount; i++)
+        BuyMenuSetListEntry(&gUnknown_02039F74[i], gMartInfo.itemList[i], gUnknown_02039F78[i]);
+
+    StringCopy(gUnknown_02039F78[i], gText_Cancel2);
+    gUnknown_02039F74[i].name = gUnknown_02039F78[i];
+    gUnknown_02039F74[i].id = -2;
+
+    gMultiuseListMenuTemplate = gUnknown_08589A48;
+    gMultiuseListMenuTemplate.items = gUnknown_02039F74;
+    gMultiuseListMenuTemplate.totalItems = gMartInfo.itemCount + 1;
+    if (gMultiuseListMenuTemplate.totalItems > 8)
+        gMultiuseListMenuTemplate.maxShowed = 8;
+    else
+        gMultiuseListMenuTemplate.maxShowed = gMultiuseListMenuTemplate.totalItems;
+
+    gShopDataPtr->unk2004 = gMultiuseListMenuTemplate.maxShowed;
+}
+
+void BuyMenuSetListEntry(struct ListMenuItem *menuItem, u16 item, u8 *name)
+{
+    if (gMartInfo.martType == MART_TYPE_0)
+        CopyItemName(item, name);
+    else
+        StringCopy(name, gDecorations[item].name);
+
+    menuItem->name = name;
+    menuItem->id = item;
+}
+
+void BuyMenuPrintItemDescriptionAndShowItemIcon(int item, bool8 onInit, struct ListMenu *list)
+{
+    const u8 *description;
+    if (onInit != TRUE)
+        PlaySE(SE_SELECT);
+
+    if (item != -2)
+        BuyMenuAddItemIcon(item, gShopDataPtr->unk200C);
+    else
+        BuyMenuAddItemIcon(-1, gShopDataPtr->unk200C);
+
+    BuyMenuRemoveItemIcon(item, gShopDataPtr->unk200C ^ 1);
+    gShopDataPtr->unk200C ^= 1;
+    if (item != -2)
+    {
+        if (gMartInfo.martType == MART_TYPE_0)
+            description = ItemId_GetDescription(item);
+        else
+            description = gDecorations[item].description;
+    }
+    else
+    {
+        description = gText_QuitShopping;
+    }
+
+    FillWindowPixelBuffer(2, 0);
+    BuyMenuPrint(2, description, 3, 1, 0, 0);
+}
+
+void BuyMenuPrintPriceInList(u8 windowId, int item, u8 y)
+{
+    u8 x;
+
+    if (item != -2)
+    {
+        if (gMartInfo.martType == MART_TYPE_0)
+        {
+            ConvertIntToDecimalStringN(
+                gStringVar1,
+                ItemId_GetPrice(item) >> GetPriceReduction(1),
+                STR_CONV_MODE_LEFT_ALIGN,
+                5);
+        }
+        else
+        {
+            ConvertIntToDecimalStringN(
+                gStringVar1,
+                gDecorations[item].price,
+                STR_CONV_MODE_LEFT_ALIGN,
+                5);
+        }
+
+        StringExpandPlaceholders(gStringVar4, gText_PokedollarVar1);
+        x = GetStringRightAlignXOffset(7, gStringVar4, 0x78);
+        AddTextPrinterParameterized2(windowId, 7, x, y, 0, 0, gUnknown_08589AB3, -1, gStringVar4);
+    }
+}

sym_ewram.txt

@@ -391,10 +391,10 @@ gUnknown_02039F5C: @ 2039F5C
 gUnknown_02039F5D: @ 2039F5D
 	.space 0x3
 
-gUnknown_02039F60: @ 2039F60
+gMartInfo: @ 2039F60
 	.space 0x10
 
-gUnknown_02039F70: @ 2039F70
+gShopDataPtr: @ 2039F70
 	.space 0x4
 
 gUnknown_02039F74: @ 2039F74