// Give warnings if coordinates are not valid or already occupied.
public static int checkXY(int x, int y) {
if (x < 0 || x > 2 || y < 0 || y > 2) {
System.out.println("You are off the board buddy, pick again!");
return -1;
} else if (!game.isBlank(x, y)) {
System.out.println("This one is taken, please try again!");
return -1;
}
return 1;
}
