/*
    Starting code provide by James Tam. Constructor(), generateCoordinates()
     and display() methods
*/

public class Galaxy 
{
    public static final int SIZE = 4;
    private StarShip [][] grid;

    public Galaxy ()
    {
        boolean squareOccupied = false;
	grid = new StarShip [SIZE][SIZE];
	int r;
	int c;
	int hull;

	// Initialize all default locations to null.
	for (r = 0; r < SIZE; r++)
	{
	    for (c = 0; c < SIZE; c++)
	    {
		grid[r][c] = null;
	    }
	}
	grid[0][0] = new FedStarShip();
	grid[0][1] = new KlingStarShip();
	grid[1][0] = new StarShip();

    }

    public void display ()
    {
	int r;
	int c;

	for (r = 0; r < SIZE; r++)
	{
	    for (c = 0; c < SIZE; c++)
	    {
		if (grid[r][c] != null)
		{
		    System.out.print(grid[r][c].getAppearance());
		}
		else
		{
		    System.out.print(" ");
		}
	    }
	    System.out.println();
	}
    }

    public void runSimulatedAttacks()
    {
	int damage;

	damage = grid[0][0].attack();
	System.out.println("Fed ship attacks for: " + damage);
	System.out.println();
	damage = grid[0][1].attack();
	System.out.println("Kling ship attacks for: " + damage);
	System.out.println();
	damage = grid[1][0].attack();
	System.out.println("Old style ship attacks for: " + damage);
	System.out.println();

	/* Won't work because it's array of references to StarShips not
	   KlingStarShips. 
	   grid[1][0].utterBattleCry(); */
	if (grid[0][0] instanceof KlingStarShip)
	    ((KlingStarShip) grid[0][0]).utterBattleCry();
	if (grid[0][1] instanceof KlingStarShip)
	    ((KlingStarShip) grid[0][1]).utterBattleCry();
	if (grid[1][0] instanceof KlingStarShip)
	    ((KlingStarShip) grid[1][0]).utterBattleCry();
    }
}