import info.gridworld.actor.Rock;
import info.gridworld.grid.Location;

public class LoopWorld extends StepWorld<Rock>
{
   public void run()
   {
      int n = 5;
      for (int i = 1; i <= n; i++)
      {
         for (int j = 1; j <= 2 * i - 1; j++)
         {
            add(new Location(i, n - i + j), new Rock());
            pause("i=" + i + ",j=" + j);
         }
      }
   }
}