item_pc: sub_810D878

src/item_pc.c

@@ -1,5 +1,10 @@
 #include "global.h"
+#include "bg.h"
+#include "decompress.h"
+#include "gpu_regs.h"
+#include "graphics.h"
 #include "help_system.h"
+#include "item.h"
 #include "item_menu_icons.h"
 #include "list_menu.h"
 #include "main.h"
@@ -10,6 +15,7 @@
 #include "pc_screen_effect.h"
 #include "scanline_effect.h"
 #include "sound.h"
+#include "strings.h"
 #include "task.h"
 #include "constants/songs.h"
 
@@ -18,10 +24,11 @@ struct ItemPcResources
     u32 field_00;
     u8 field_04;
     u8 field_05;
-    u8 filler_06[2];
+    u8 field_06;
+    u8 field_07;
     u8 field_08;
     u8 filler_09[3];
-    u16 field_0C[3];
+    s16 field_0C[3];
 };
 
 struct ItemPcStaticResources
@@ -33,27 +40,48 @@ struct ItemPcStaticResources
 };
 
 EWRAM_DATA struct ItemPcResources * gUnknown_203ADBC = NULL;
-EWRAM_DATA u32 gUnknown_203ADC0 = 0;
-EWRAM_DATA u32 gUnknown_203ADC4 = 0;
-EWRAM_DATA u32 gUnknown_203ADC8 = 0;
+EWRAM_DATA u8 * gUnknown_203ADC0 = NULL;
+EWRAM_DATA struct ListMenuItem * gUnknown_203ADC4 = NULL;
+EWRAM_DATA void * gUnknown_203ADC8 = NULL;
 EWRAM_DATA struct ItemPcStaticResources gUnknown_203ADCC = {};
 
+extern const struct CompressedSpriteSheet gUnknown_83D4240;
+extern const struct CompressedSpritePalette gUnknown_83D4248;
+
 void sub_810D4A0(void);
 bool8 sub_810D4C0(void);
 void sub_810D6AC(void);
+void sub_810D6E8(u8 taskId);
 bool8 sub_810D71C(void);
 bool8 sub_810D78C(void);
 bool8 sub_810D83C(void);
 void sub_810D878(void);
+void sub_810D954(s32 itemIndex, bool8 onInit, struct ListMenu * list);
+void sub_810DA20(u8 windowId, s32 itemId, u8 y);
 void sub_810E8F0(void);
 void sub_810DB34(void);
 void sub_810DB5C(void);
 void sub_810DBF0(void);
+void sub_810DC40(void);
 void sub_810DDA4(void);
 void sub_810DE08(void);
 void sub_810DE94(u8);
 void sub_810DEA0(u8 taskId);
 
+const struct BgTemplate gUnknown_8453F6C[2] = {
+    {
+        .bg = 0,
+        .charBaseIndex = 0,
+        .mapBaseIndex = 31,
+        .priority = 0
+    }, {
+        .bg = 1,
+        .charBaseIndex = 3,
+        .mapBaseIndex = 30,
+        .priority = 1
+    }
+};
+
 void sub_810D3F4(u8 a0, MainCallback callback)
 {
     u8 i;
@@ -236,3 +264,121 @@ bool8 sub_810D4C0(void)
     }
     return FALSE;
 }
+
+void sub_810D6AC(void)
+{
+    BeginNormalPaletteFade(0xFFFFFFFF, 0, 0, 16, RGB_BLACK);
+    CreateTask(sub_810D6E8, 0);
+    SetVBlankCallback(sub_810D48C);
+    SetMainCallback2(sub_810D470);
+}
+
+void sub_810D6E8(u8 taskId)
+{
+    if (!gPaletteFade.active)
+    {
+        SetMainCallback2(gUnknown_203ADCC.field_0);
+        sub_810DC40();
+        DestroyTask(taskId);
+    }
+}
+
+bool8 sub_810D71C(void)
+{
+    InitBgReg();
+    gUnknown_203ADC0 = Alloc(0x800);
+    if (gUnknown_203ADC0 == NULL)
+        return FALSE;
+    memset(gUnknown_203ADC0, 0, 0x800);
+    ResetBgsAndClearDma3BusyFlags(0);
+    InitBgsFromTemplates(0, gUnknown_8453F6C, NELEMS(gUnknown_8453F6C));
+    SetBgTilemapBuffer(1, gUnknown_203ADC0);
+    schedule_bg_copy_tilemap_to_vram(1);
+    SetGpuReg(REG_OFFSET_DISPCNT, DISPCNT_OBJ_1D_MAP | DISPCNT_OBJ_ON);
+    SetGpuReg(REG_OFFSET_BLDCNT , 0);
+    ShowBg(0);
+    ShowBg(1);
+    return TRUE;
+}
+
+bool8 sub_810D78C(void)
+{
+    switch (gUnknown_203ADBC->field_0C[0])
+    {
+    case 0:
+        reset_temp_tile_data_buffers();
+        decompress_and_copy_tile_data_to_vram(1, gUnknown_8E85090, 0, 0, 0);
+        gUnknown_203ADBC->field_0C[0]++;
+        break;
+    case 1:
+        if (free_temp_tile_data_buffers_if_possible() != TRUE)
+        {
+            LZDecompressWram(gUnknown_8E85458, gUnknown_203ADC0);
+            gUnknown_203ADBC->field_0C[0]++;
+        }
+        break;
+    case 2:
+        LoadCompressedPalette(gUnknown_8E85408, 0x00, 0x60);
+        gUnknown_203ADBC->field_0C[0]++;
+        break;
+    case 3:
+        LoadCompressedObjectPic(&gUnknown_83D4240);
+        gUnknown_203ADBC->field_0C[0]++;
+        break;
+    default:
+        LoadCompressedObjectPalette(&gUnknown_83D4248);
+        gUnknown_203ADBC->field_0C[0] = 0;
+        return TRUE;
+    }
+    return FALSE;
+}
+
+#define sub_810D83C_sub(ptr__, size) ({ \
+    void ** ptr = (void **)&(ptr__);             \
+    *ptr = Alloc(size);                 \
+    if (*ptr == NULL)                   \
+    {                                   \
+        sub_810DC40();                  \
+        sub_810D6AC();                  \
+        return FALSE;                   \
+    }                                   \
+})
+
+bool8 sub_810D83C(void)
+{
+    sub_810D83C_sub(gUnknown_203ADC4, 0x0F8);
+    sub_810D83C_sub(gUnknown_203ADC8, 0x1B2);
+    return TRUE;
+}
+
+void sub_810D878(void)
+{
+    u16 i;
+
+    for (i = 0; i < gUnknown_203ADBC->field_07; i++)
+    {
+        gUnknown_203ADC4[i].label = ItemId_GetItem(gSaveBlock1Ptr->pcItems[i].itemId)->name;
+        gUnknown_203ADC4[i].index = i;
+    }
+    gUnknown_203ADC4[i].label = gFameCheckerText_Cancel;
+    gUnknown_203ADC4[i].index = -2;
+
+    gMultiuseListMenuTemplate.items = gUnknown_203ADC4;
+    gMultiuseListMenuTemplate.totalItems = gUnknown_203ADBC->field_07 + 1;
+    gMultiuseListMenuTemplate.windowId = 0;
+    gMultiuseListMenuTemplate.header_X = 0;
+    gMultiuseListMenuTemplate.item_X = 9;
+    gMultiuseListMenuTemplate.cursor_X = 1;
+    gMultiuseListMenuTemplate.lettersSpacing = 1;
+    gMultiuseListMenuTemplate.itemVerticalPadding = 2;
+    gMultiuseListMenuTemplate.upText_Y = 2;
+    gMultiuseListMenuTemplate.maxShowed = gUnknown_203ADBC->field_06;
+    gMultiuseListMenuTemplate.fontId = 2;
+    gMultiuseListMenuTemplate.cursorPal = 2;
+    gMultiuseListMenuTemplate.fillValue = 0;
+    gMultiuseListMenuTemplate.cursorShadowPal = 3;
+    gMultiuseListMenuTemplate.moveCursorFunc = sub_810D954;
+    gMultiuseListMenuTemplate.itemPrintFunc = sub_810DA20;
+    gMultiuseListMenuTemplate.scrollMultiple = 0;
+    gMultiuseListMenuTemplate.cursorKind = 0;
+}