1 files changed, 177 insertions, 0 deletions
diff --git a/src/engine/clear_save_data_menu.c b/src/engine/clear_save_data_menu.c
new file mode 100644
index 000000000..498562fe0
--- /dev/null
+++ b/src/engine/clear_save_data_menu.c
@@ -0,0 +1,177 @@
+#include "global.h"
+#include "clear_save_data_menu.h"
+#include "main.h"
+#include "menu.h"
+#include "palette.h"
+#include "save.h"
+#include "songs.h"
+#include "sound.h"
+#include "sprite.h"
+#include "strings2.h"
+#include "task.h"
+
+static void VBlankCB_ClearSaveDataScreen(void);
+static void Task_InitMenu(u8);
+static void Task_ProcessMenuInput(u8);
+static void Task_ClearSaveData(u8);
+static void CB2_ClearSaveDataScreen(void);
+static void VBlankCB_InitClearSaveDataScreen(void);
+static u8 InitClearSaveDataScreen(void);
+static void CB2_SoftReset(void);
+
+void CB2_InitClearSaveDataScreen(void)
+{
+    if (InitClearSaveDataScreen())
+    {
+        CreateTask(Task_InitMenu, 0);
+    }
+}
+
+static void VBlankCB_ClearSaveDataScreen(void)
+{
+    LoadOam();
+    ProcessSpriteCopyRequests();
+    TransferPlttBuffer();
+}
+
+static void Task_InitMenu(u8 taskId)
+{
+    ResetSpriteData();
+
+    REG_DISPCNT = DISPCNT_MODE_0 | DISPCNT_OBJ_1D_MAP | DISPCNT_BG0_ON | DISPCNT_BG3_ON | DISPCNT_OBJ_ON;
+
+    SetVBlankCallback(VBlankCB_ClearSaveDataScreen);
+    MenuDrawTextWindow(2, 14, 27, 19);
+    MenuPrint(gSystemText_ClearAllSaveDataPrompt, 3, 15);
+
+    MenuDrawTextWindow(2, 1, 8, 6);
+    PrintMenuItems(3, 2, 2, gMenuYesNoItems);
+    InitMenu(0, 3, 2, 2, 1, 5);
+
+    gTasks[taskId].func = Task_ProcessMenuInput;
+}
+
+static void Task_ProcessMenuInput(u8 taskId)
+{
+    switch (ProcessMenuInputNoWrap_())
+    {
+    case 0:
+        PlaySE(SE_SELECT);
+        sub_8071F40(gSystemText_ClearingData);
+        gTasks[taskId].func = Task_ClearSaveData;
+        break;
+    case -1:
+    case 1:
+        PlaySE(SE_SELECT);
+        DestroyTask(taskId);
+        SetMainCallback2(CB2_SoftReset);
+        break;
+    }
+    AnimateSprites();
+    BuildOamBuffer();
+}
+
+static void Task_ClearSaveData(u8 taskId)
+{
+    ClearSaveData();
+    DestroyTask(taskId);
+    SetMainCallback2(CB2_SoftReset);
+}
+
+static void CB2_ClearSaveDataScreen(void)
+{
+    RunTasks();
+    UpdatePaletteFade();
+}
+
+static void VBlankCB_InitClearSaveDataScreen(void)
+{
+    TransferPlttBuffer();
+}
+
+static u8 InitClearSaveDataScreen(void)
+{
+    u16 i;
+    u16 ime;
+
+    switch (gMain.state)
+    {
+    case 0:
+    default:
+        SetVBlankCallback(NULL);
+
+        REG_DISPCNT = 0;
+        REG_BG0HOFS = 0;
+        REG_BG0VOFS = 0;
+        REG_BG3HOFS = 0;
+        REG_BG3VOFS = 0;
+        REG_WIN0H = 0;
+        REG_WIN0V = 0;
+        REG_WININ = 0;
+        REG_WINOUT = 0;
+        REG_BLDCNT = 0;
+        REG_BLDALPHA = 0;
+        REG_BLDY = 0;
+
+        DmaFill16(3, 0, (void *)VRAM, VRAM_SIZE);
+        DmaFill32(3, 0, (void *)OAM, OAM_SIZE);
+        DmaFill16(3, 0, (void *)(PLTT + 2), PLTT_SIZE - 2);
+
+        ResetPaletteFade();
+
+        gPlttBufferUnfaded[0] = 0x7fff;
+        gPlttBufferFaded[0] = 0x7fff;
+        gPlttBufferUnfaded[1] = 0x3945;
+        gPlttBufferFaded[1] = 0x3945;
+
+        for (i = 0; i < 0x10; i++)
+            ((u16 *)(VRAM + 0x20))[i] = 0x1111;
+
+        for (i = 0; i < 0x500; i++)
+            ((u16 *)(VRAM + 0x3800))[i] = 0x0001;
+
+        ResetTasks();
+        ResetSpriteData();
+
+        SetUpWindowConfig(&gWindowConfig_81E6C3C);
+        InitMenuWindow(&gWindowConfig_81E6CE4);
+        BeginNormalPaletteFade(-1, 0, 0x10, 0, 0xffff);
+
+        ime = REG_IME;
+        REG_IME = 0;
+        REG_IE |= INTR_FLAG_VBLANK;
+        REG_IME = ime;
+        REG_DISPSTAT |= DISPSTAT_VBLANK_INTR;
+
+        SetVBlankCallback(VBlankCB_InitClearSaveDataScreen);
+
+        REG_BG3CNT = BGCNT_PRIORITY(3) | BGCNT_CHARBASE(0) | BGCNT_SCREENBASE(7) | BGCNT_16COLOR | BGCNT_TXT256x256;
+        REG_DISPCNT = DISPCNT_MODE_0 | DISPCNT_BG0_ON | DISPCNT_BG3_ON;
+        gMain.state = 1;
+        return 0;
+    case 1:
+        UpdatePaletteFade();
+        if (gPaletteFade.active)
+            return 0;
+        SetMainCallback2(CB2_ClearSaveDataScreen);
+        return 1;
+    }
+}
+
+static void CB2_SoftReset(void)
+{
+    switch (gMain.state)
+    {
+    case 0:
+    default:
+        BeginNormalPaletteFade(-1, 0, 0, 0x10, 0xffff);
+        gMain.state = 1;
+        break;
+    case 1:
+        UpdatePaletteFade();
+        if (gPaletteFade.active)
+            return;
+        DoSoftReset();
+        break;
+    }
+}