代码和图片放在这个地址了：
https://gitee.com/r77683962/fighting/tree/master

最新的代码运行，可以有两架飞机，分别通过WASD（方向），F（发子弹）；上下左右（控制方向），空格（发子弹）
但是敌人的飞机还没有。

代码写的比较匆忙，不太好。

运行效果：

import javax.swing.*;
import java.awt.*;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;class MyThread extends Thread
{GameFrame gameFrame;public MyThread(){gameFrame = new GameFrame();}public void run(){System.out.println("run");Boolean runFlag = true;while (runFlag){runFlag = gameFrame.Run();//System.out.println("runFlag: " + runFlag);try{Thread.sleep(100);}catch (InterruptedException e){e.printStackTrace();throw new RuntimeException(e);}}}public static void main(String[] args) {MyThread gameFrame = new MyThread();gameFrame.start();}
}public class GameFrame extends JFrame
{private Boolean runFlag;private final Graphics graphics;private final Image planeImage;private final Image bulletImage;private final Image backgroundImage1;private final Image backgroundImage2;//plane xprivate int planeX;//plane yprivate int planeY;private int bulletX;private int bulletY;private boolean bulletFlag;private int backgroundY;//bullet move stepprivate final int moveStep;private final int width;private final int height;public GameFrame(){setTitle("Fighting");setLayout(null);moveStep = 4;width = 629;height = 990;setSize(width, height);setLocationRelativeTo(null);setVisible(true);KeyCapture();backgroundY = 0;bulletFlag = false;planeY = height - 200;planeX = width / 2;runFlag = true;graphics = getContentPane().getGraphics();planeImage = Toolkit.getDefaultToolkit().getImage("D:\\Code\\JAVA\\class\\Fighting\\images\\bullet05.png");bulletImage = Toolkit.getDefaultToolkit().getImage("D:\\Code\\JAVA\\class\\Fighting\\images\\bullet_02.png");backgroundImage1 = Toolkit.getDefaultToolkit().getImage("D:\\Code\\JAVA\\class\\Fighting\\images\\mapback.png");backgroundImage2 = Toolkit.getDefaultToolkit().getImage("D:\\Code\\JAVA\\class\\Fighting\\images\\mapback.png");}public void KeyCapture(){this.addKeyListener(new KeyAdapter(){public void keyPressed(KeyEvent e){int keyCode = e.getKeyCode();System.out.println("keyCode: " + keyCode);switch (keyCode){case KeyEvent.VK_UP:planeY -= moveStep; break;case KeyEvent.VK_DOWN:planeY += moveStep; break;case KeyEvent.VK_LEFT:planeX -= moveStep; break;case KeyEvent.VK_RIGHT:planeX += moveStep; break;case KeyEvent.VK_SPACE:bulletX = planeX;bulletY = planeY;bulletFlag = true;break;case KeyEvent.VK_Q:runFlag = false;break;default:System.out.println("KeyCode error!");break;}}});}public Boolean Run(){//System.out.println("x: " + planeX + " y:" + planeY);// backgroundgraphics.drawImage(backgroundImage2, 0, backgroundY, width, height, this);graphics.drawImage(backgroundImage1, 0, backgroundY - height, width, height, this);// planegraphics.drawImage(planeImage, planeX, planeY, null);//bulletif (bulletFlag){graphics.drawImage(bulletImage, bulletX, bulletY, null);bulletY -= 2 * moveStep;}backgroundY += 2;return runFlag;}
}