Hi all, it's me again. I'm trying to implement a save/load function that allows the player to save the game, mainly their current map, x and y coordinates, their direction, and all the flags they have activated. This is what I have so far, however, the game crashes when LoadGame() is called upon, yet no error message appears.

In the system.vc:

int posx = entity.x[player];
int posy = entity.y[player];
int posface = entity.face[player];


In savegame.vc:

#define FILE_READ 1
#define FILE_WRITE 2
#define FILE_WRITE_APPEND 3

void SaveGame()
{
	int savefile = FileOpen("save.dat", 2);

	FileWriteQuad(savefile, posx);
	FileWriteQuad(savefile, posy);
	FileWriteQuad(savefile, posface);
	FileWriteString(savefile, curmap.path);

	FileClose(savefile);
}

void LoadGame()
{
	int savefile = FileOpen("save.dat", 1);

	posx = FileReadQuad(savefile);
	posy = FileReadQuad(savefile);
	posface = FileReadQuad(savefile);
	string savemap = FileReadString(savefile);

	FileClose(savefile);

	Map(savemap);
}

I logged messages after each function and it crashes when it tries Map(savemap). However, I think it is because savegame doesn't always record the map file. When I open save.dat, it sometimes has a mapfile, and sometimes doesn't; but I don't understand why.

Also, there is no error message that pops up or is in v3.txt

Here is the final Savegame() / LoadGame() function, if anyone wants to use it. It saves your (x,y) position, the map you were on, and the value of all flags. *NOTE* The number of flags you have is represented by number in the declaration of the while loop.

void SaveGame()
{
	int savefile = FileOpen("save.pcx", FILE_WRITE);

	string x = str(entity.x[player]);
	string y = str(entity.y[player]);

	FileWriteLn(savefile, curmap.path);
	FileWriteLn(savefile, x);
	FileWriteLn(savefile, y);
	int i = 0;
	while(i <= 14)
	{
	FileWriteLn(savefile, str(flag));
	i++;
	}
	

	FileClose(savefile);
}

void LoadGame()
{
	int savefile = FileOpen("save.pcx", FILE_READ);

	FileSeekPos(savefile, 0, SEEK_CUR);
	savemap = FileReadLn(savefile);
	int posx = val(FileReadLn(savefile));
	int posy = val(FileReadLn(savefile));
	int i = 0;
	while(i <= 14)
	{
	flag= val(FileReadLn(savefile));
	i++;
	}
	FileClose(savefile);
	
	mapswitch(savemap, abs((posx/16)), abs((posy/16)), "D", TRANS_FADE);
}

Don't sweat it.

My friend had a look at the code and realized that since the player's x and y coordinates weren't written as strings, the compiler couldn't understand what was wanted (for some reason that we don't know), and so he just put in a few things turning the int x and y values to str, and vice versa when reading.