Thread: file i/o, struct questions

Hi all.

I'm writing a battleships type game. Each player is represented as a struct, which contains 2 10 x 10 arrays, player's name, etc.

Code:

struct player
{
	char shipBoard[10][10];
	char bombBoard[10][10];
	string name;	
	int shipRem;
};

There are 2 players, but there are 4 instances of player, so that I can swap players, called p1, p2, current & opponent.

I want to be able to save the game, so I've created another struct, which contains 4 instances of player, called saveGame.

Code:

struct saveGame
{
	player savep1;
	player savep2;
	player saveCurr;
	player saveOpp;
};

here's the save function:

Code:

void save()
{
	saveGame save;

	save.savep1 = p1;
	save.savep2 = p2;
	save.saveCurr = current;
	save.saveOpp = opponent;
	ofstream outputStream("saveBattle.dat", ios::out | ios::binary);
	if(!outputStream)
	{
		cout << "Failed to open file";
		exit(1);
	}
	outputStream.write((char *) &save, sizeof(saveGame));
	outputStream.close();
	cout << "Game has been saved";
	exit(0);
}

I have a restore function which is similar, only in reverse.

So I have a struct that contains structs.

I then write that struct to a file, and read it to restore the game, using a similar process.

What I want to know is do I have to specifically use a loop process, to put the data back into the 10 x 10 matrices, for each player? Ive tried just using the call

Code:

p1 = restore.savep1;

ans so on for each player, and then continuing the game, but it doesn't seem to work.

Sorry if what I have written isn't clear. It's quite hard to explain!

Thanks in advance,

Justin