/*
 * Header comments go here
 */

import acm.graphics.*;
import acm.program.*;
import acm.util.*;
import java.awt.*;
import myLibrary.graphics.*;

public class PlayPool extends GraphicsProgram
{

  public void run()
  {
    // Add 3 circles
    for (int i = 0; i < 3; i++)
    {
      // Choose the "corner" of the circle
      double x = rgen.nextDouble(0, getWidth() - SIZE);
      double y = rgen.nextDouble(0, getHeight() - SIZE);

      // Initial direction of movement
      double angle = rgen.nextDouble(0.0, 2 * Math.PI);

      // Get the "speed" of movement
      double speed = rgen.nextDouble(MINIMUM_SPEED, MAXIMUM_SPEED);

      // Set up motion as determined by direction and speed
      double deltax = speed * Math.cos(angle);
      double deltay = speed * Math.sin(angle);

      // Draw the new moving circle
      add(new GMovingCircle(x, y, SIZE, rgen.nextColor(), deltax, deltay));
    }

    // Make MAX_MOVES number of moves
    for (int i = 0; i < MAX_MOVES; i++)
    {
      // For every object in our window...
      for (int j = 0; j < getElementCount(); j++)
      {
        // the jth object
        GObject gObject = getElement(j);

        // Make sure it is a moving circle
        if (gObject instanceof GMovingCircle)
        {
          // Since we have a circle we cast it as such.
          GMovingCircle ball = (GMovingCircle) gObject;
          
          /*******************************************************************
           * Add and modify code here to remove the ball from the window if
           * it has been captured by a pocket.
           *******************************************************************/
          ball.move();
        }
      }
      pause(SLEEPTIME);
    }
  }
  // CONSTANT AND GLOBAL OBJECTS DECLARATION SECTION

  // A delay time for animation
  private static final double SLEEPTIME = 20;
  // Number of moves to make
  private static final int MAX_MOVES = 1000;
  // attributes of a pool ball:
  // size of a pool ball
  private static final double SIZE = 35;
  // Bounds on pool ball velocity
  private static final double MINIMUM_SPEED = 5;
  private static final double MAXIMUM_SPEED = 10;
  // A random generator object
  private RandomGenerator rgen = RandomGenerator.getInstance();

    public static void main(String args[])
    {
    (new PlayPool()).start();
    }
    
}