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-rw-r--r--src/engine/save_failed_screen.c310
1 files changed, 310 insertions, 0 deletions
diff --git a/src/engine/save_failed_screen.c b/src/engine/save_failed_screen.c
new file mode 100644
index 000000000..b91e8b5bf
--- /dev/null
+++ b/src/engine/save_failed_screen.c
@@ -0,0 +1,310 @@
+#include "global.h"
+#include "gba/flash_internal.h"
+#include "save_failed_screen.h"
+#include "m4a.h"
+#include "main.h"
+#include "menu.h"
+#include "palette.h"
+#include "save.h"
+#include "sprite.h"
+#include "starter_choose.h"
+#include "strings.h"
+#include "task.h"
+#include "text.h"
+
+// In English 1.0, the text window is too small, causing text to overflow.
+
+#ifdef BUGFIX_SAVEFAILEDSCREEN1
+#define MSG_WIN_TOP 10
+#else
+#define MSG_WIN_TOP 12
+#endif
+
+#define CLOCK_WIN_TOP (MSG_WIN_TOP - 4)
+
+extern u8 unk_2000000[];
+
+static EWRAM_DATA u16 gSaveFailedType = 0;
+static EWRAM_DATA u16 gSaveFailedClockInfo[9] = {0};
+
+extern u32 gDamagedSaveSectors;
+extern u32 gGameContinueCallback;
+
+static const struct OamData sClockOamData =
+{
+ 160, // Y
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 1,
+ 0,
+ 0,
+ 0,
+ 0
+};
+
+static const u8 sClockFrames[8][3] =
+{
+ { 1, 0, 0 },
+ { 5, 0, 0 },
+ { 9, 0, 0 },
+ { 5, 0, 1 },
+ { 1, 0, 1 },
+ { 5, 1, 1 },
+ { 9, 1, 0 },
+ { 5, 1, 0 },
+};
+
+static const u8 gSaveFailedClockPal[] = INCBIN_U8("graphics/misc/clock_small.gbapal");
+static const u8 gSaveFailedClockGfx[] = INCBIN_U8("graphics/misc/clock_small.4bpp.lz");
+
+static void VBlankCB(void);
+static void CB2_SaveFailedScreen(void);
+static void CB2_WipeSave(void);
+static void CB2_GameplayCannotBeContinued(void);
+static void CB2_FadeAndReturnToTitleScreen(void);
+static void CB2_ReturnToTitleScreen(void);
+static void VBlankCB_UpdateClockGraphics(void);
+static bool8 VerifySectorWipe(u16 sector);
+static bool8 WipeSector(u16 sector);
+static bool8 WipeSectors(u32 sectorBits);
+
+void DoSaveFailedScreen(u8 saveType)
+{
+ SetMainCallback2(CB2_SaveFailedScreen);
+ gSaveFailedType = saveType;
+ gSaveFailedClockInfo[0] = FALSE;
+}
+
+static void VBlankCB(void)
+{
+ LoadOam();
+ ProcessSpriteCopyRequests();
+ TransferPlttBuffer();
+}
+
+static void CB2_SaveFailedScreen(void)
+{
+ u16 ime;
+
+ switch (gMain.state)
+ {
+ case 0:
+ default:
+ SetVBlankCallback(0);
+ REG_DISPCNT = 0;
+ REG_BG3CNT = 0;
+ REG_BG2CNT = 0;
+ REG_BG1CNT = 0;
+ REG_BG0CNT = 0;
+ REG_BG3HOFS = 0;
+ REG_BG3VOFS = 0;
+ REG_BG2HOFS = 0;
+ REG_BG2VOFS = 0;
+ REG_BG1HOFS = 0;
+ REG_BG1VOFS = 0;
+ REG_BG0HOFS = 0;
+ REG_BG0VOFS = 0;
+ DmaFill16(3, 0, VRAM, VRAM_SIZE);
+ DmaFill32(3, 0, OAM, OAM_SIZE);
+ DmaFill16(3, 0, PLTT, PLTT_SIZE);
+ LZ77UnCompVram(&gBirchHelpGfx, (void *)VRAM);
+ LZ77UnCompVram(&gBirchBagTilemap, (void *)(VRAM + 0x3000));
+ LZ77UnCompVram(&gBirchGrassTilemap, (void *)(VRAM + 0x3800));
+ LZ77UnCompVram(&gSaveFailedClockGfx, (void *)(VRAM + 0x10020));
+ ResetSpriteData();
+ ResetTasks();
+ ResetPaletteFade();
+ LoadPalette(&gBirchBagGrassPal, 0, sizeof(gBirchBagGrassPal));
+ LoadPalette(&gSaveFailedClockPal, 0x100, sizeof(gSaveFailedClockPal));
+ SetUpWindowConfig(&gWindowConfig_81E6C3C);
+ InitMenuWindow(&gWindowConfig_81E6CE4);
+ MenuDrawTextWindow(13, CLOCK_WIN_TOP, 16, CLOCK_WIN_TOP + 3); // clock window
+ MenuDrawTextWindow(1, MSG_WIN_TOP, 28, 19); // message window
+ MenuPrint(gSystemText_SaveFailedBackupCheck, 2, MSG_WIN_TOP + 1);
+ BeginNormalPaletteFade(0xFFFFFFFF, 0, 16, 0, 0);
+ ime = REG_IME;
+ REG_IME = 0;
+ REG_IE |= INTR_FLAG_VBLANK;
+ REG_IME = ime;
+ REG_DISPSTAT |= DISPSTAT_VBLANK_INTR;
+ SetVBlankCallback(VBlankCB);
+ REG_BG3CNT = BGCNT_PRIORITY(3) | BGCNT_CHARBASE(0) | BGCNT_SCREENBASE(7) | BGCNT_16COLOR | BGCNT_TXT256x256;
+ REG_BG2CNT = BGCNT_PRIORITY(2) | BGCNT_CHARBASE(0) | BGCNT_SCREENBASE(6) | BGCNT_16COLOR | BGCNT_TXT256x256;
+ REG_BG0CNT = BGCNT_PRIORITY(0) | BGCNT_CHARBASE(2) | BGCNT_SCREENBASE(31) | BGCNT_16COLOR | BGCNT_TXT256x256;
+ REG_DISPCNT = DISPCNT_OBJ_ON | DISPCNT_BG3_ON | DISPCNT_BG2_ON | DISPCNT_BG0_ON | DISPCNT_OBJ_1D_MAP | DISPCNT_MODE_0;
+ gMain.state++;
+ break;
+ case 1:
+ if (!UpdatePaletteFade())
+ {
+ SetMainCallback2(CB2_WipeSave);
+ SetVBlankCallback(VBlankCB_UpdateClockGraphics);
+ }
+ break;
+ }
+}
+
+static void CB2_WipeSave(void)
+{
+ u8 wipeTries = 0;
+
+ gSaveFailedClockInfo[0] = TRUE;
+
+ while (gDamagedSaveSectors != 0 && wipeTries < 3) // while there are still attempts left, keep trying to fix the save sectors.
+ {
+ if (WipeSectors(gDamagedSaveSectors) != FALSE)
+ {
+ MenuDrawTextWindow(1, MSG_WIN_TOP, 28, 19);
+ MenuPrint(gSystemText_BackupDamagedGameContinue, 2, MSG_WIN_TOP + 1);
+ SetMainCallback2(CB2_GameplayCannotBeContinued);
+ return;
+ }
+
+ MenuDrawTextWindow(1, MSG_WIN_TOP, 28, 19);
+ MenuPrint(gSystemText_CheckCompleteSaveAttempt, 2, MSG_WIN_TOP + 1);
+ HandleSavingData(gSaveFailedType);
+
+ if (gDamagedSaveSectors != 0)
+ {
+#ifdef BUGFIX_SAVEFAILEDSCREEN2
+ MenuDrawTextWindow(1, MSG_WIN_TOP, 28, 19);
+#endif
+ MenuPrint(gSystemText_SaveFailedBackupCheck, 2, MSG_WIN_TOP + 1);
+ }
+
+ wipeTries++;
+ }
+
+ if (wipeTries == 3)
+ {
+ MenuDrawTextWindow(1, MSG_WIN_TOP, 28, 19);
+ MenuPrint(gSystemText_BackupDamagedGameContinue, 2, MSG_WIN_TOP + 1);
+ SetMainCallback2(CB2_FadeAndReturnToTitleScreen); // called again below
+ }
+ else
+ {
+ MenuDrawTextWindow(1, MSG_WIN_TOP, 28, 19);
+
+ // no callback exists, so the game cannot continue.
+ if (gGameContinueCallback == 0)
+ MenuPrint(gSystemText_SaveCompletedGameEnd, 2, MSG_WIN_TOP + 1);
+ else // callback exists, so continue
+ MenuPrint(gSystemText_SaveCompletedPressA, 2, MSG_WIN_TOP + 1);
+ }
+
+ SetMainCallback2(CB2_FadeAndReturnToTitleScreen);
+}
+
+static void CB2_GameplayCannotBeContinued(void)
+{
+ gSaveFailedClockInfo[0] = FALSE;
+
+ if (gMain.newKeys & A_BUTTON)
+ {
+ MenuDrawTextWindow(1, MSG_WIN_TOP, 28, 19);
+ MenuPrint(gSystemText_GameplayEnded, 2, MSG_WIN_TOP + 1);
+ SetVBlankCallback(VBlankCB);
+ SetMainCallback2(CB2_FadeAndReturnToTitleScreen);
+ }
+}
+
+static void CB2_FadeAndReturnToTitleScreen(void)
+{
+ gSaveFailedClockInfo[0] = FALSE;
+
+ if (gMain.newKeys & A_BUTTON)
+ {
+ BeginNormalPaletteFade(0xFFFFFFFF, 0, 0, 16, 0);
+ SetVBlankCallback(VBlankCB);
+ SetMainCallback2(CB2_ReturnToTitleScreen);
+ }
+}
+
+static void CB2_ReturnToTitleScreen(void)
+{
+ if (!UpdatePaletteFade())
+ {
+ if (gGameContinueCallback == 0) // no callback exists, so do a soft reset.
+ {
+ DoSoftReset();
+ }
+ else
+ {
+ SetMainCallback2((MainCallback)gGameContinueCallback);
+ gGameContinueCallback = 0;
+ }
+ }
+}
+
+static void VBlankCB_UpdateClockGraphics(void)
+{
+ unsigned int n = (gMain.vblankCounter2 >> 3) & 7;
+
+ gMain.oamBuffer[0] = sClockOamData;
+ gMain.oamBuffer[0].x = 112;
+ gMain.oamBuffer[0].y = (CLOCK_WIN_TOP + 1) * 8;
+
+ if (gSaveFailedClockInfo[0] != FALSE)
+ {
+ gMain.oamBuffer[0].tileNum = sClockFrames[n][0];
+ gMain.oamBuffer[0].matrixNum = (sClockFrames[n][2] << 4) | (sClockFrames[n][1] << 3);
+ }
+ else
+ {
+ gMain.oamBuffer[0].tileNum = 1;
+ }
+
+ CpuFastCopy(gMain.oamBuffer, (void *)OAM, 4);
+
+ if (gSaveFailedClockInfo[1]) // maybe was used for debugging?
+ gSaveFailedClockInfo[1]--;
+}
+
+static bool8 VerifySectorWipe(u16 sector)
+{
+ u32 *ptr = (u32 *)unk_2000000;
+ u16 i;
+
+ ReadFlash(sector, 0, (u8 *)ptr, 4096);
+
+ for (i = 0; i < 0x400; i++, ptr++)
+ if (*ptr)
+ return TRUE;
+
+ return FALSE;
+}
+
+static bool8 WipeSector(u16 sector)
+{
+ u16 i, j;
+ bool8 failed = TRUE;
+
+ for (i = 0; failed && i < 130; i++)
+ {
+ for (j = 0; j < 0x1000; j++)
+ ProgramFlashByte(sector, j, 0);
+
+ failed = VerifySectorWipe(sector);
+ }
+
+ return failed;
+}
+
+static bool8 WipeSectors(u32 sectorBits)
+{
+ u16 i;
+
+ for (i = 0; i < 0x20; i++)
+ if ((sectorBits & (1 << i)) && !WipeSector(i))
+ sectorBits &= ~(1 << i);
+
+ if (sectorBits == 0)
+ return FALSE;
+ else
+ return TRUE;
+}
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