/********************************************************
* Filename		: Game.java
* Version		: Beta V1.0
* Author		: Roger Webster, Ph.D.
* This class is what you fill in to write the game.
**********************************************************/
import java.awt.*;
import java.net.*;
	
class Game extends Frame implements Runnable
{ 
	private clientwindow cw;
	private Thread thread;
	private String nextMove = "test";
	private String opponent_move;
	private String move;
	private boolean you_go_first;
	private boolean move_made = false;
	private URL base_url;

// constructor
Game (URL base_url, clientwindow parent, boolean you_go_first) 
{
	super("XXX Game Window");	
	this.base_url = base_url;
	this.cw = parent;
	this.you_go_first = you_go_first;
	this.start();

}

// gets the thread going
public void start() 
{
	System.out.println("starting thread");
  	thread = new Thread(this,"Game");
  	thread.setPriority(Thread.MIN_PRIORITY); 
 	thread.start();
}

public void run() 
{
 	System.out.println("RUNNING thread");

      while (true) 
	{
		try{thread.sleep(20);} 	// yield instead ?
		catch(InterruptedException e){}

		if (you_go_first)
		{
			// more code here probably
			// when client makes move then
			cw.sendMove(nextMove); // sends move to other player
			// wait for opponent's move	
			move = this.get_opponent_move();
			// process the move
		}
		else
		{
			// wait for opponent's move	
			move = this.get_opponent_move();
			// process the move
			// when client makes move then
			cw.sendMove(nextMove); // sends move to other player
			// more code here probably		
		}		
			

 	} // loop until the game is over
}

// called by clientwindow 
public synchronized void set_opponent_move(String nextMove)
{
	move_made = true;
	System.out.println("setting opponent's next move is " + nextMove);
	opponent_move = nextMove;
	notify();
}
	  
public synchronized String get_opponent_move()
{
	if (!move_made)
	{
		try
		{
			wait();
		}
		catch (Exception e)
		{
			System.out.println("Exception in wait " + e.toString());	
		}
	}
	System.out.println("get opponent's next move " + opponent_move);
	move_made = false;
	return (opponent_move);

}	  

} // end Game class