decompile clear_save_data_screen.

1 files changed, 212 insertions, 0 deletions

diff --git a/src/clear_save_data_screen.c b/src/clear_save_data_screen.c
new file mode 100755
index 000000000..4e3b12992
--- /dev/null
+++ b/src/clear_save_data_screen.c
@@ -0,0 +1,212 @@
+#include "global.h"
+#include "task.h"
+#include "menu.h"
+#include "text.h"
+#include "sound.h"
+#include "main.h"
+#include "save.h"
+#include "palette.h"
+#include "gpu_regs.h"
+#include "bg.h"
+#include "text_window.h"
+#include "songs.h"
+
+extern void CreateYesNoMenu(const struct WindowTemplate *windowTemplate, u16 borderFirstTileNum, u8 borderPalette, u8 initialCursorPos); // menu.s
+extern s8 sub_8198C58(void); // menu.s
+
+extern u8 gText_ClearAllSaveData[];
+extern u8 gText_ClearingData[];
+
+extern u16 gUnknown_0860F074[];
+
+static void Task_DoClearSaveDataScreenYesNo(u8);
+static void Task_ClearSaveDataScreenYesNoChoice(u8);
+static void Task_ClearSaveData(u8);
+static bool8 SetupClearSaveDataScreen(void);
+static void CB2_FadeAndDoReset(void);
+static void InitClearSaveDataScreenWindows(void);
+
+static const struct BgTemplate sClearSaveBgTemplates[2] =
+{
+    {
+        .bg = 0,
+        .charBaseIndex = 0,
+        .mapBaseIndex = 31,
+        .screenSize = 0,
+        .paletteMode = 0,
+        .priority = 0,
+        .baseTile = 0,
+    },
+    {
+        .bg = 3,
+        .charBaseIndex = 0,
+        .mapBaseIndex = 30,
+        .screenSize = 0,
+        .paletteMode = 0,
+        .priority = 1,
+        .baseTile = 0,
+    },
+};
+
+static const struct WindowTemplate sClearSaveTextWindow[] =
+{
+    {
+        .priority = 0,
+        .tilemapLeft = 3,
+        .tilemapTop = 15,
+        .width = 26,
+        .height = 4,
+        .paletteNum = 15,
+        .baseBlock = 11,
+    },
+    DUMMY_WIN_TEMPLATE
+};
+
+static const struct WindowTemplate sClearSaveYesNo[] =
+{
+    {
+        .priority = 0,
+        .tilemapLeft = 3,
+        .tilemapTop = 2,
+        .width = 5,
+        .height = 4,
+        .paletteNum = 15,
+        .baseBlock = 115,
+    }
+};
+
+void CB2_InitClearSaveDataScreen(void)
+{
+    if(SetupClearSaveDataScreen())
+        CreateTask(Task_DoClearSaveDataScreenYesNo, 0);
+}
+
+static void Task_DoClearSaveDataScreenYesNo(u8 taskId)
+{
+    SetWindowBorderStyle(0, 0, 2, 14);
+    PrintTextOnWindow(0, 1, gText_ClearAllSaveData, 0, 1, 0, 0);
+    CreateYesNoMenu(sClearSaveYesNo, 2, 14, 1);
+    gTasks[taskId].func = Task_ClearSaveDataScreenYesNoChoice;
+}
+
+static void Task_ClearSaveDataScreenYesNoChoice(u8 taskId)
+{
+    switch(sub_8198C58())
+    {
+        case 0:
+            FillWindowPixelBuffer(0, 17);
+            PrintTextOnWindow(0, 1, gText_ClearingData, 0, 1, 0, 0);
+            gTasks[taskId].func = Task_ClearSaveData;
+            break;
+        case 1:
+        case -1:
+            PlaySE(SE_SELECT);
+            DestroyTask(taskId);
+            SetMainCallback2(CB2_FadeAndDoReset);
+    }
+}
+
+static void Task_ClearSaveData(u8 taskId)
+{
+    ClearSaveData();
+    DestroyTask(taskId);
+    SetMainCallback2(CB2_FadeAndDoReset);
+}
+
+static void MainCB(void)
+{
+    RunTasks();
+    UpdatePaletteFade();
+}
+
+static void VBlankCB(void)
+{
+    TransferPlttBuffer();
+}
+
+static bool8 SetupClearSaveDataScreen(void)
+{
+    u16 i;
+
+    switch(gMain.state)
+    {
+        case 0:
+        default:
+            SetVBlankCallback(NULL);
+            SetGpuReg(REG_OFFSET_DISPCNT, DISPCNT_MODE_0);
+            SetGpuReg(REG_OFFSET_BG0HOFS, DISPCNT_MODE_0);
+            SetGpuReg(REG_OFFSET_BG0VOFS, DISPCNT_MODE_0);
+            SetGpuReg(REG_OFFSET_BG3HOFS, DISPCNT_MODE_0);
+            SetGpuReg(REG_OFFSET_BG3VOFS, DISPCNT_MODE_0);
+            SetGpuReg(REG_OFFSET_WIN0H, DISPCNT_MODE_0);
+            SetGpuReg(REG_OFFSET_WIN0V, DISPCNT_MODE_0);
+            SetGpuReg(REG_OFFSET_WININ, DISPCNT_MODE_0);
+            SetGpuReg(REG_OFFSET_WINOUT, DISPCNT_MODE_0);
+            SetGpuReg(REG_OFFSET_BLDCNT, DISPCNT_MODE_0);
+            SetGpuReg(REG_OFFSET_BLDALPHA, DISPCNT_MODE_0);
+            SetGpuReg(REG_OFFSET_BLDY, DISPCNT_MODE_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 < 0x400; i++)
+                ((u16 *)(VRAM + 0xF000))[i] = 0x0001;
+            ResetTasks();
+            ResetSpriteData();
+            ResetBgsAndClearDma3BusyFlags(0);
+            InitBgsFromTemplates(0, sClearSaveBgTemplates, ARRAY_COUNT(sClearSaveBgTemplates));
+            SetGpuReg(REG_OFFSET_DISPCNT, DISPCNT_OBJ_ON | DISPCNT_OBJ_1D_MAP);
+            ShowBg(0);
+            ShowBg(3);
+            SetGpuReg(REG_OFFSET_BLDCNT, DISPCNT_MODE_0);
+            InitClearSaveDataScreenWindows();
+            BeginNormalPaletteFade(0x0000FFFF, 0, 0x10, 0, 0xFFFF);
+            EnableInterrupts(1);
+            SetVBlankCallback(VBlankCB);
+            gMain.state = 1;
+            break;
+        case 1:
+            UpdatePaletteFade();
+            if(!gPaletteFade.active)
+            {
+                SetMainCallback2(MainCB);
+                return TRUE;
+            }
+    }
+    return FALSE;
+}
+
+static void CB2_FadeAndDoReset(void)
+{
+    switch(gMain.state)
+    {
+        case 0:
+        default:
+            BeginNormalPaletteFade(0x0000FFFF, 0, 0, 0x10, 0xFFFF);
+            gMain.state = 1;
+            break;
+        case 1:
+            UpdatePaletteFade();
+            if(!gPaletteFade.active)
+            {
+                FreeAllWindowBuffers();
+                DoSoftReset();
+            }
+    }
+}
+
+static void InitClearSaveDataScreenWindows(void)
+{
+    InitWindows(sClearSaveTextWindow);
+    DeactivateAllTextPrinters();
+    FillWindowPixelBuffer(0, 0);
+    sub_80987D4(0, 0, 2, 224);
+    LoadPalette(gUnknown_0860F074, 0xF0, 0x20);
+}