/**
* 测试窗口物体沿着水平和垂直移动
* @author tonyl
*
*/
public class GameFrame03 extends Frame {
Image img=GameUtil.getImage(“images/sun.jpg”);
/**
* 加载窗口
*/
public void launchFrame(){
setSize(500,500);
setLocation(100,100);
setVisible(true);
new PaintThread().start();
addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent e){
System.exit(0);
}
});
}
private double x=100,y=100;
private boolean left;
private boolean up;
public void paint(Graphics g){
g.drawImage(img,(int)x,(int)y,null);
if(up){
y -=10;
}else{
y +=10;
}
if(y>500-30){
up=true;
}
if(y<30){
up=false;
}
}
/**
* 定义一个重画窗口的线程类，是一个内部类
* @author Administrator
*/
class PaintThread extends Thread{
public void run(){
while(true){
repaint();
try{
Thread.sleep(40);//1s=1000ms
}catch(InterruptedException e){
e.printStackTrace();
}
}
}
}
}
