mirror of
https://github.com/wavemotion-dave/NINTV-DS.git
synced 2025-06-18 22:05:37 -04:00
286 lines
8.5 KiB
C++
286 lines
8.5 KiB
C++
#include <nds.h>
|
|
#include <stdio.h>
|
|
#include <fat.h>
|
|
#include <dirent.h>
|
|
#include <unistd.h>
|
|
#include "ds_tools.h"
|
|
#include "savestate.h"
|
|
#include "bgHighScore.h"
|
|
|
|
extern Emulator *currentEmu;
|
|
extern Rip *currentRip;
|
|
|
|
#define CURRENT_SAVE_FILE_VER 0x0004
|
|
|
|
struct
|
|
{
|
|
UINT16 saveFileVersion;
|
|
UINT8 bSlotUsed[3];
|
|
char slotTimestamp[3][20];
|
|
struct _stateStruct slot[3];
|
|
} saveState;
|
|
|
|
char savefilename[128];
|
|
|
|
BOOL do_save(const CHAR* filename, UINT8 slot)
|
|
{
|
|
BOOL didSave = FALSE;
|
|
time_t unixTime = time(NULL);
|
|
struct tm* timeStruct = gmtime((const time_t *)&unixTime);
|
|
|
|
saveState.saveFileVersion = CURRENT_SAVE_FILE_VER;
|
|
saveState.bSlotUsed[slot] = TRUE;
|
|
sprintf(saveState.slotTimestamp[slot], "%02d-%02d-%04d %02d:%02d:%02d", timeStruct->tm_mday, timeStruct->tm_mon+1, timeStruct->tm_year+1900, timeStruct->tm_hour, timeStruct->tm_min, timeStruct->tm_sec);
|
|
|
|
// Ask the emulator to save it's state...
|
|
currentEmu->SaveState(&saveState.slot[slot]);
|
|
saveState.slot[slot].frames = frames;
|
|
saveState.slot[slot].emu_frames = emu_frames;
|
|
|
|
FILE* file = fopen(filename, "wb+");
|
|
|
|
if (file != NULL)
|
|
{
|
|
fwrite(&saveState, 1, sizeof(saveState), file);
|
|
didSave = TRUE;
|
|
fclose(file);
|
|
}
|
|
|
|
return didSave;
|
|
}
|
|
|
|
BOOL do_load(const CHAR* filename, UINT8 slot)
|
|
{
|
|
BOOL didLoadState = FALSE;
|
|
|
|
memset(&saveState, 0x00, sizeof(saveState));
|
|
FILE* file = fopen(filename, "rb");
|
|
|
|
if (file != NULL)
|
|
{
|
|
int size = fread(&saveState, 1, sizeof(saveState), file);
|
|
|
|
if ((size != sizeof(saveState)) || (saveState.saveFileVersion != CURRENT_SAVE_FILE_VER))
|
|
{
|
|
memset(&saveState, 0x00, sizeof(saveState));
|
|
}
|
|
else
|
|
{
|
|
// Ask the emulator to restore it's state...
|
|
currentEmu->LoadState(&saveState.slot[slot]);
|
|
frames = saveState.slot[slot].frames;
|
|
emu_frames = saveState.slot[slot].emu_frames;
|
|
|
|
didLoadState = TRUE;
|
|
}
|
|
fclose(file);
|
|
}
|
|
|
|
return didLoadState;
|
|
}
|
|
|
|
void just_read_save_file(void)
|
|
{
|
|
if (currentRip != NULL)
|
|
{
|
|
strcpy(savefilename, currentRip->GetFileName());
|
|
savefilename[strlen(savefilename)-4] = 0;
|
|
strcat(savefilename, ".sav");
|
|
memset(&saveState, 0x00, sizeof(saveState));
|
|
FILE* file = fopen(savefilename, "rb");
|
|
|
|
if (file != NULL)
|
|
{
|
|
int size = fread(&saveState, 1, sizeof(saveState), file);
|
|
fclose(file);
|
|
if ((size != sizeof(saveState)) || (saveState.saveFileVersion != CURRENT_SAVE_FILE_VER))
|
|
{
|
|
memset(&saveState, 0x00, sizeof(saveState));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void state_save(UINT8 slot)
|
|
{
|
|
if (currentRip != NULL)
|
|
{
|
|
strcpy(savefilename, currentRip->GetFileName());
|
|
savefilename[strlen(savefilename)-4] = 0;
|
|
strcat(savefilename, ".sav");
|
|
dsPrintValue(10,23,0, (char*)"STATE SAVED");
|
|
do_save(savefilename, slot);
|
|
WAITVBL;WAITVBL;WAITVBL;
|
|
dsPrintValue(10,23,0, (char*)" ");
|
|
}
|
|
}
|
|
|
|
BOOL state_restore(UINT8 slot)
|
|
{
|
|
if (currentRip != NULL)
|
|
{
|
|
if (saveState.bSlotUsed[slot] == TRUE)
|
|
{
|
|
strcpy(savefilename, currentRip->GetFileName());
|
|
savefilename[strlen(savefilename)-4] = 0;
|
|
strcat(savefilename, ".sav");
|
|
dsPrintValue(10,23,0, (char*)"STATE RESTORED");
|
|
do_load(savefilename, slot);
|
|
WAITVBL;WAITVBL;WAITVBL;WAITVBL;
|
|
dsPrintValue(10,23,0, (char*)" ");
|
|
return TRUE;
|
|
}
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
void clear_save_file(void)
|
|
{
|
|
if (currentRip != NULL)
|
|
{
|
|
strcpy(savefilename, currentRip->GetFileName());
|
|
savefilename[strlen(savefilename)-4] = 0;
|
|
strcat(savefilename, ".sav");
|
|
dsPrintValue(10,23,0, (char*)".SAV FILE ERASED");
|
|
remove(savefilename);
|
|
memset(&saveState, 0x00, sizeof(saveState));
|
|
WAITVBL;WAITVBL;WAITVBL;WAITVBL;
|
|
dsPrintValue(10,23,0, (char*)" ");
|
|
}
|
|
}
|
|
|
|
|
|
#define SAVE_MENU_ITEMS 8
|
|
const char *savestate_menu[SAVE_MENU_ITEMS] =
|
|
{
|
|
"SAVE TO SLOT 1",
|
|
"SAVE TO SLOT 2",
|
|
"SAVE TO SLOT 3",
|
|
"RESTORE FROM SLOT 1",
|
|
"RESTORE FROM SLOT 2",
|
|
"RESTORE FROM SLOT 3",
|
|
"ERASE SAVE FILE",
|
|
"EXIT THIS MENU",
|
|
};
|
|
|
|
void show_slot_info(UINT8 slot)
|
|
{
|
|
if (slot == 255)
|
|
{
|
|
dsPrintValue(8,15, 0, (char*)" ");
|
|
dsPrintValue(8,16, 0, (char*)" ");
|
|
}
|
|
else
|
|
{
|
|
if (saveState.bSlotUsed[slot] == FALSE)
|
|
{
|
|
dsPrintValue(8,15, 0, (char*)"THIS SLOT IS EMPTY ");
|
|
dsPrintValue(8,16, 0, (char*)" ");
|
|
}
|
|
else
|
|
{
|
|
dsPrintValue(8,15, 0, (char*)"THIS SLOT LAST SAVED ");
|
|
dsPrintValue(8,16, 0, (char*)saveState.slotTimestamp[slot]);
|
|
}
|
|
}
|
|
}
|
|
|
|
void savestate_entry(void)
|
|
{
|
|
UINT8 current_entry = 0;
|
|
extern int bg0, bg0b, bg1b;
|
|
char bDone = 0;
|
|
|
|
just_read_save_file();
|
|
|
|
decompress(bgHighScoreTiles, bgGetGfxPtr(bg0b), LZ77Vram);
|
|
decompress(bgHighScoreMap, (void*) bgGetMapPtr(bg0b), LZ77Vram);
|
|
dmaCopy((void *) bgHighScorePal,(u16*) BG_PALETTE_SUB,256*2);
|
|
unsigned short dmaVal = *(bgGetMapPtr(bg1b) +31*32);
|
|
dmaFillWords(dmaVal | (dmaVal<<16),(void*) bgGetMapPtr(bg1b),32*24*2);
|
|
swiWaitForVBlank();
|
|
dsPrintValue(8,3,0, (char*)"SAVE/RESTORE STATE");
|
|
dsPrintValue(4,20,0, (char*)"PRESS UP/DOWN AND A=SELECT");
|
|
|
|
for (int i=0; i<SAVE_MENU_ITEMS; i++)
|
|
{
|
|
dsPrintValue(8,5+i, (i==0 ? 1:0), (char*)savestate_menu[i]);
|
|
}
|
|
show_slot_info(0);
|
|
|
|
int last_keys_pressed = -1;
|
|
while (!bDone)
|
|
{
|
|
int keys_pressed = keysCurrent();
|
|
|
|
if (keys_pressed != last_keys_pressed)
|
|
{
|
|
last_keys_pressed = keys_pressed;
|
|
if (keys_pressed & KEY_DOWN)
|
|
{
|
|
dsPrintValue(8,5+current_entry, 0, (char*)savestate_menu[current_entry]);
|
|
if (current_entry < (SAVE_MENU_ITEMS-1)) current_entry++; else current_entry=0;
|
|
dsPrintValue(8,5+current_entry, 1, (char*)savestate_menu[current_entry]);
|
|
if (current_entry == 0 || current_entry == 3) show_slot_info(0);
|
|
else if (current_entry == 1 || current_entry == 4) show_slot_info(1);
|
|
else if (current_entry == 2 || current_entry == 5) show_slot_info(2);
|
|
else show_slot_info(255);
|
|
}
|
|
if (keys_pressed & KEY_UP)
|
|
{
|
|
dsPrintValue(8,5+current_entry, 0, (char*)savestate_menu[current_entry]);
|
|
if (current_entry > 0) current_entry--; else current_entry=(SAVE_MENU_ITEMS-1);
|
|
dsPrintValue(8,5+current_entry, 1, (char*)savestate_menu[current_entry]);
|
|
if (current_entry == 0 || current_entry == 3) show_slot_info(0);
|
|
else if (current_entry == 1 || current_entry == 4) show_slot_info(1);
|
|
else if (current_entry == 2 || current_entry == 5) show_slot_info(2);
|
|
else show_slot_info(255);
|
|
}
|
|
if (keys_pressed & KEY_A)
|
|
{
|
|
switch (current_entry)
|
|
{
|
|
case 0:
|
|
state_save(0);
|
|
show_slot_info(0);
|
|
break;
|
|
case 1:
|
|
state_save(1);
|
|
show_slot_info(1);
|
|
break;
|
|
case 2:
|
|
state_save(2);
|
|
show_slot_info(2);
|
|
break;
|
|
case 3:
|
|
if (state_restore(0)) bDone=1;
|
|
break;
|
|
case 4:
|
|
if (state_restore(1)) bDone=1;
|
|
break;
|
|
case 5:
|
|
if (state_restore(2)) bDone=1;
|
|
break;
|
|
case 6:
|
|
clear_save_file();
|
|
show_slot_info(255);
|
|
break;
|
|
case 7:
|
|
bDone=1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (keys_pressed & KEY_B)
|
|
{
|
|
bDone = 1;
|
|
}
|
|
swiWaitForVBlank();
|
|
}
|
|
}
|
|
}
|
|
|
|
// End of file
|