package cn.sxt.game;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JFrame;
public class PlayGameFrame extends JFrame {
Image planeImg=GameUtil.getImage("images/plane.png");
Image bg=GameUtil.getImage("images/bg.jpg");
Plane plane=new Plane(planeImg,250,250);//报错！！！
@Override
public void paint(Graphics g) {//自动被调用。g相当于一只画笔
g.drawImage(bg, 0, 0, null);
plane.drawSelf(g);//画飞机
}
//帮助我们重复的重画窗口
class PaintThread extends Thread{
@Override
public void run() {
while(true) {
repaint();//重画窗口
try {
Thread.sleep(40); //1s=1000ms
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
//初始化窗口
public void launchFrame() {
this.setTitle("自由人的游戏");
this.setVisible(true);
this.setSize(500, 500);
this.setLocation(300, 300);
this.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
new PaintThread().start();//启动重画窗口的线程
}
public static void main(String[] args) {
PlayGameFrame f=new PlayGameFrame();
f.launchFrame();
}
}
报错信息：
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