inpairsbuttoneventlistener.java

Java版拼图游戏

/*
 * @(#)InPairsButtonEventListener.java 1.0 03/08/22
 * Copyright 2003 Entao Zhang, All rights reserved.
 */

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

/**
 * 拼图记忆方式的事件处理类.本类使用了多线程对话的处理方式保证延时及
 * swing界面的更新.
 */
public class InPairsButtonEventListener extends
		ComponentsEventListener implements ActionListener,Runnable{
	private int loc,swap;
	private int grids[];
	private boolean pause=false;
	private InPairsButtonManager cm;

	public InPairsButtonEventListener(ImageRevertUnitPane ir,InPairsButtonManager cm){
		super(ir);
		this.cm=cm;
		Thread t=new Thread(this);
		t.setPriority(Thread.MIN_PRIORITY);
		t.start();
	}

	public void addListener(Component c){
		((JButton)c).addActionListener(this);
	}
	
	public void actionPerformed(ActionEvent e){
		if (ir.isConfused()){
			if (pause){
				return;
			}
			grids=ir.grids;
			swap=ir.swap;
			loc=Integer.parseInt(((Component)e.getSource()).getName());
			ir.swap=loc;
			ir.cm.swapStateChange(false);
			if (swap!=-1){
				if(grids[swap]!=grids[loc]){
					cm.sum-=2;
					synchronized(this){
						notify();
					}
				}
				ir.swap=-1;
			}
			cm.sum++;
			if(cm.sum==ir.gridLength){
				ir.done();
			}
		}else{
			ir.questionToStart();
		}
	}
	
	public void run(){
		while(true){
			try {
				synchronized(this){
					wait();
				}
				pause=true;
				Thread.sleep(500);
				ir.cm.componentStateChange(swap);
				ir.cm.componentStateChange(loc);
				pause=false;
		    }catch (InterruptedException e) {}
		}
	}
}