java gui小飛機躲子彈小游戲

最近java基礎部分快學完了，學了個Java gui小游戲，兄弟們可以看看😁😁😁

Images.java

package com.pl.text;

import java.net.URL;

import javax.swing.*;

public class Images {
		static URL bgURL=Images.class.getResource( "/images/bg2.jpg");
		static ImageIcon bgImg=new ImageIcon(bgURL);
		
		static URL bulletURL=Images.class.getResource( "/images/bullet.png");
		static ImageIcon bulletImg=new ImageIcon(bulletURL);
		
		static URL planeURL=Images.class.getResource( "/images/plane.png");
		static ImageIcon planeImg=new ImageIcon(planeURL);
}

GameStart.java

package com.pl.text;

import java.awt.*;

import javax.swing.*;

public class GameStart {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		JFrame jf=new JFrame();
		jf.setTitle("你最帥");
		int width=Toolkit.getDefaultToolkit().getScreenSize().width;
		int height=Toolkit.getDefaultToolkit().getScreenSize().height;
		jf.setBounds((width-800)/2, (height-800)/2, 800, 800);
		jf.setResizable(false);
		jf.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
		GamePanel gp=new GamePanel();
		jf.add(gp);
		jf.setVisible(true);
		
	}

}

GamePanel.java

package com.pl.text;

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

public class GamePanel extends JPanel{

	int planeXs;
	int planeYs;
	int bulletXs[]=new int[15];
	int bulletYs[]=new int[15];
	boolean isStart=false;
	boolean isDie=false;
	boolean up,down,left,right;
	Timer timer;
	double degrees[]=new double[15];
	long startTime;
	long endTime;
	public void init() {
		planeXs=500;
		planeYs=500;
		for(int i=0;i<15;i++) {
			bulletXs[i]=200;
			bulletYs[i]=200;
			degrees[i]=Math.random()*2*Math.PI;
		}
	}

	public GamePanel() {
		init();
		this.setFocusable(true);
		//監聽器
		this.addKeyListener(new KeyAdapter() {
			@Override
			public void keyPressed(KeyEvent e) {
				super.keyPressed(e);
				int keycode=e.getKeyCode();
//				System.out.println(keycode);
				if(keycode==32) {
					if(isDie) {
						isDie=false;
						init();//初始化資料
					}
					else{
					isStart=!isStart;
					startTime=System.currentTimeMillis();
					repaint();
					}
				}
				if(keycode==KeyEvent.VK_UP) {
					up=true;
				}
				if(keycode==KeyEvent.VK_DOWN) {
					down=true;				
				}
				if(keycode==KeyEvent.VK_LEFT) {
					left=true;
				}
				if(keycode==KeyEvent.VK_RIGHT) {
					right=true;
				}
			}
			@Override
			public void keyReleased(KeyEvent e) {
				super.keyReleased(e);
				int keycode=e.getKeyCode();
				if(keycode==KeyEvent.VK_UP) {
					up=false;
				}
				if(keycode==KeyEvent.VK_DOWN) {
					down=false;				
				}
				if(keycode==KeyEvent.VK_LEFT) {
					left=false;
				}
				if(keycode==KeyEvent.VK_RIGHT) {
					right=false;
				}
			}
		});
		 timer=new Timer(50,new ActionListener() {
				@Override
				public void actionPerformed(ActionEvent e) {
					if(isStart==true&&isDie==false) {
					 if(left==true) {
						 planeXs-=10;
					 }
					 if(right==true) {
						 planeXs+=10;
					 }
					 if(up==true) {
						 planeYs-=10;
					 }
					 if(down==true) {
						 planeYs+=10;
					 } 
					 for(int i=0;i<15;i++) {
					 bulletXs[i]+=Math.cos(degrees[i])*10;
					 bulletYs[i]+=Math.sin(degrees[i])*10;
					 if(bulletXs[i]<=0) {//這里特別注意關系運算子和資料大小
						 bulletXs[i]=800;
					 }
					 if(bulletXs[i]>800) {
							bulletXs[i]=0;				 
					}
					 if(bulletYs[i]<=0) {
						 bulletYs[i]=800;
					 }
					 if(bulletYs[i]>800) {
						 bulletYs[i]=0;
					 }
					 boolean flag=new Rectangle(planeXs,planeYs,30,30).intersects(new Rectangle(bulletXs[i],bulletYs[i],5,10));
					 if(flag) {
						 isDie=true;
						 endTime=System.currentTimeMillis();
					 }
					 }
					 repaint();
				   }
					
				}
			});
		 timer.start();
	}
	
	@Override
	 protected void paintComponent(Graphics g){
		super.paintComponent(g);

		Images.bgImg.paintIcon(this, g, 0, 0);
		Images.planeImg.paintIcon(this, g, planeXs, planeYs);
		for(int i=0;i<15;i++) {
			Images.bulletImg.paintIcon(this, g, bulletXs[i], bulletYs[i]);
		}
		if(isStart==false) {
			g.setColor(new Color(125,245,80));
			g.setFont(new Font("微軟雅黑",Font.BOLD,40));
			g.drawString("開始游戲",310,400);
			
		}
		if(isDie) {
			g.setColor(new Color(125,245,80));
			g.setFont(new Font("微軟雅黑",Font.BOLD,40));
			g.drawString("游戲結束,經歷"+(endTime-startTime)+"ms",200,250);
			
		}
	 }
}