// remove the specified brick from this level's collection
public void DeleteBrick(Brick brick)
{
if (Bricks.Contains(brick))
{
Bricks.Remove(brick);
Changed = true;
}
}
// add a new brick to the level, given the coordinate
// of the a top, left corner, knowing the width and
// height of all bricks on this level
public Brick AddBrick(int x, int y, int hits)
{
Brick brick = null;
if (x >= 0 && y >= 0)
{
brick = new Brick();
brick.X = x;
brick.Y = y;
brick.HitsToClear = hits;
Bricks.Add(brick);
Changed = true;
}
return brick;
}