main menu through sub_800C780

1 files changed, 217 insertions, 0 deletions

diff --git a/src/main_menu.c b/src/main_menu.c
new file mode 100644
index 000000000..dfc4fb808
--- /dev/null
+++ b/src/main_menu.c
@@ -0,0 +1,217 @@
+#include "global.h"
+#include "palette.h"
+#include "gpu_regs.h"
+#include "scanline_effect.h"
+#include "bg.h"
+#include "task.h"
+#include "text.h"
+#include "save.h"
+#include "event_data.h"
+#include "window.h"
+#include "strings.h"
+
+bool32 sub_800C318(u8 a0);
+void sub_800C4D0(u8 taskId);
+void sub_800C634(u8 taskId, const u8 *str);
+void sub_800C688(u8 taskId);
+void sub_800C704(u8 taskId);
+void sub_800C780(u8 taskId);
+void sub_800C7A0(u8 taskId);
+void sub_800CA94(u8 taskId);
+void sub_800CDF8(const u8 *str);
+void sub_800D044(u8 a0);
+void sub_800D094(u8 a0);
+void sub_800D1E8(const struct WindowTemplate * template);
+
+extern const struct WindowTemplate gUnknown_8234618[];
+extern const u16 gUnknown_8234648[];
+extern const u16 gUnknown_8234668[];
+extern const struct BgTemplate gUnknown_8234690[1];
+
+void sub_800C2D4(void)
+{
+    RunTasks();
+    AnimateSprites();
+    BuildOamBuffer();
+    UpdatePaletteFade();
+}
+
+void sub_800C2EC(void)
+{
+    LoadOam();
+    ProcessSpriteCopyRequests();
+    TransferPlttBuffer();
+}
+
+void sub_800C300(void)
+{
+    sub_800C318(1);
+}
+
+void sub_800C30C(void)
+{
+    sub_800C318(1);
+}
+
+bool32 sub_800C318(u8 a0)
+{
+    u8 taskId;
+
+    SetVBlankCallback(NULL);
+    SetGpuReg(REG_OFFSET_DISPCNT, 0);
+    SetGpuReg(REG_OFFSET_BG2CNT, 0);
+    SetGpuReg(REG_OFFSET_BG1CNT, 0);
+    SetGpuReg(REG_OFFSET_BG0CNT, 0);
+    SetGpuReg(REG_OFFSET_BG2HOFS, 0);
+    SetGpuReg(REG_OFFSET_BG2VOFS, 0);
+    SetGpuReg(REG_OFFSET_BG1HOFS, 0);
+    SetGpuReg(REG_OFFSET_BG1VOFS, 0);
+    SetGpuReg(REG_OFFSET_BG0HOFS, 0);
+    SetGpuReg(REG_OFFSET_BG0VOFS, 0);
+    DmaFill16(3, 0, (void *)VRAM, VRAM_SIZE);
+    DmaFill32(3, 0, (void *)OAM, OAM_SIZE);
+    DmaFill16(3, 0, (void *)(PLTT + 2), PLTT_SIZE - 2);
+    ScanlineEffect_Stop();
+    ResetTasks();
+    ResetSpriteData();
+    FreeAllSpritePalettes();
+    ResetPaletteFade();
+    ResetBgsAndClearDma3BusyFlags(FALSE);
+    InitBgsFromTemplates(0, gUnknown_8234690, NELEMS(gUnknown_8234690));
+    ChangeBgX(0, 0, 0);
+    ChangeBgY(0, 0, 0);
+    ChangeBgX(1, 0, 0);
+    ChangeBgY(1, 0, 0);
+    ChangeBgX(2, 0, 0);
+    ChangeBgY(2, 0, 0);
+    InitWindows(gUnknown_8234618);
+    DeactivateAllTextPrinters();
+    LoadPalette(gUnknown_8234648, 0x00, 0x20);
+    LoadPalette(gUnknown_8234668, 0xF0, 0x20);
+    SetGpuReg(REG_OFFSET_WIN0H, 0);
+    SetGpuReg(REG_OFFSET_WIN0V, 0);
+    SetGpuReg(REG_OFFSET_WININ, 0);
+    SetGpuReg(REG_OFFSET_WINOUT, 0);
+    SetGpuReg(REG_OFFSET_BLDCNT, 0);
+    SetGpuReg(REG_OFFSET_BLDALPHA, 0);
+    SetGpuReg(REG_OFFSET_BLDY, 0);
+    SetMainCallback2(sub_800C2D4);
+    SetGpuReg(REG_OFFSET_DISPCNT, DISPCNT_OBJ_1D_MAP | DISPCNT_OBJ_ON | DISPCNT_WIN0_ON);
+    taskId = CreateTask(sub_800C4D0, 0);
+    gTasks[taskId].data[1] = 0;
+    gTasks[taskId].data[8] = a0;
+    return FALSE;
+}
+
+void sub_800C4D0(u8 taskId)
+{
+    if (!gPaletteFade.active)
+    {
+        SetGpuReg(REG_OFFSET_WIN0H, 0);
+        SetGpuReg(REG_OFFSET_WIN0V, 0);
+        SetGpuReg(REG_OFFSET_WININ, 0x0001);
+        SetGpuReg(REG_OFFSET_WINOUT, 0x0021);
+        SetGpuReg(REG_OFFSET_BLDCNT, BLDCNT_TGT1_BG0 | BLDCNT_TGT1_BG1 | BLDCNT_TGT1_BG2 | BLDCNT_TGT1_BG3 | BLDCNT_TGT1_OBJ | BLDCNT_TGT1_BD | BLDCNT_EFFECT_DARKEN);
+        SetGpuReg(REG_OFFSET_BLDALPHA, BLDALPHA_BLEND(0, 0));
+        SetGpuReg(REG_OFFSET_BLDY, 7);
+        switch (gSaveFileStatus)
+        {
+        case 1:
+            sub_800D044(0);
+            if (sub_806E2BC() == TRUE)
+            {
+                gTasks[taskId].data[0] = 2;
+            }
+            else
+            {
+                gTasks[taskId].data[0] = 1;
+            }
+            gTasks[taskId].func = sub_800C704;
+            break;
+        case 2:
+            sub_800D094(0);
+            gTasks[taskId].data[0] = 0;
+            sub_800C634(taskId, gText_SaveFileHasBeenDeleted);
+            break;
+        case 0xFF:
+            sub_800D094(0);
+            gTasks[taskId].data[0] = 1;
+            sub_800C634(taskId, gText_SaveFileCorruptedPrevWillBeLoaded);
+            if (sub_806E2BC() == TRUE)
+            {
+                gTasks[taskId].data[0] = 2;
+            }
+            else
+            {
+                gTasks[taskId].data[0] = 1;
+            }
+            break;
+        case 0:
+        default:
+            sub_800D044(0);
+            gTasks[taskId].data[0] = 0;
+            gTasks[taskId].func = sub_800C704;
+            break;
+        case 4:
+            sub_800D094(0);
+            gTasks[taskId].data[0] = 0;
+            sub_800C634(taskId, gText_1MSubCircuitBoardNotInstalled);
+            break;
+        }
+    }
+}
+
+void sub_800C634(u8 taskId, const u8 *str)
+{
+    sub_800CDF8(str);
+    gTasks[taskId].func = sub_800C688;
+    BeginNormalPaletteFade(0xFFFFFFFF, 0, 16, 0, 0xFFFF);
+    ShowBg(0);
+    SetVBlankCallback(sub_800C2EC);
+}
+
+void sub_800C688(u8 taskId)
+{
+    if (!gPaletteFade.active)
+    {
+        RunTextPrinters();
+        if (!IsTextPrinterActive(4) && JOY_NEW(A_BUTTON))
+        {
+            ClearWindowTilemap(4);
+            sub_800D1E8(&gUnknown_8234618[4]);
+            sub_800D044(0);
+            if (gTasks[taskId].data[0] == 0)
+                gTasks[taskId].func = sub_800C704;
+            else
+                gTasks[taskId].func = sub_800C7A0;
+        }
+    }
+}
+
+void sub_800C704(u8 taskId)
+{
+    if (!gPaletteFade.active)
+    {
+        SetGpuReg(REG_OFFSET_WIN0H, 0);
+        SetGpuReg(REG_OFFSET_WIN0V, 0);
+        SetGpuReg(REG_OFFSET_WININ, 0x0001);
+        SetGpuReg(REG_OFFSET_WINOUT, 0x0021);
+        SetGpuReg(REG_OFFSET_BLDCNT,
+                  BLDCNT_TGT1_BG0 | BLDCNT_TGT1_BG1 | BLDCNT_TGT1_BG2 | BLDCNT_TGT1_BG3 | BLDCNT_TGT1_OBJ |
+                  BLDCNT_TGT1_BD | BLDCNT_EFFECT_DARKEN);
+        SetGpuReg(REG_OFFSET_BLDALPHA, BLDALPHA_BLEND(0, 0));
+        SetGpuReg(REG_OFFSET_BLDY, 7);
+        if (gTasks[taskId].data[0] == 0)
+            gTasks[taskId].func = sub_800CA94;
+        else
+            gTasks[taskId].func = sub_800C780;
+    }
+}
+
+void sub_800C780(u8 taskId)
+{
+    if (!gPaletteFade.active)
+    {
+        sub_800C7A0(taskId);
+    }
+}