java编写的射击类小游戏

package corejava.day10; import java.awt.Color; import java.awt.Cursor; import java.awt.Font; import java.awt.Graphics; import java.awt.Image; import java.awt.Point; import java.awt.Toolkit; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import java.awt.event.MouseEvent; import java.awt.event.MouseListener; import java.awt.event.MouseMotionListener; import java.net.URL; import java.util.Random; import java.util.Vector; import javax.swing.ImageIcon; import javax.swing.JPanel; public class FighterPanel extends JPanel implements MouseMotionListener,MouseListener,KeyListener{ private static final long serialVersionUID = 1L; private int x,y;//灰机中心图标 private boolean isDead=false;//看自己的机器碰到敌机没 private boolean isRestart=false; private static int totalCount=0; private Vector<Bullet> bullets; private Vector<Enemy> enemies; private boolean isFire=false;//是否为开火状态 private static Image plane=new ImageIcon("pic/plane.gif").getImage(); private static Image backImage=new ImageIcon("pic/back.jpg").getImage(); FighterPanel(){ x=180; y=500; bullets=new Vector<Bullet>(); enemies=new Vector<Enemy>(); this.addMouseMotionListener(this); this.addMouseListener(this); this.addKeyListener(this); Toolkit tk=Toolkit.getDefaultToolkit(); URL classUrl=this.getClass().getResource(""); Image cursorImage=tk.getImage(classUrl); Cursor cs=tk.createCustomCursor(cursorImage,new Point(0,0),"selfCursor"); setCursor(cs); } public void paint(Graphics g){ //super.paint(g); int imgNum=0; //先画背景 setBackground(Color.BLACK); g.drawImage(backImage, 0, 0, 600, 700, this); //先画敌机 for(int i=0;i<enemies.size();i++){ Enemy en=enemies.elementAt(i); en.draw(g); } //显示得分 g.setColor(Color.GREEN); g.setFont(new Font("宋体",Font.BOLD,20)); g.drawString("得分："+totalCount, 500, 20); //GAME OVER if(isDead){ g.setColor(Color.RED); g.setFont(new Font("宋体",Font.BOLD,50)); g.drawString("GAME OVER!\n\r",150,250); } //再画灰机（这样自己的飞机就飞的更高） g.drawImage(plane, x-40, y-40, 80, 80, this); //最后画子弹 for(int i=0;i<bullets.size();i++){ Bullet ball=bullets.elementAt(i); ball.draw(g); } //如果敌机爆炸 for(int i=0;i<enemies.size();i++){ Enemy enm=enemies.elementAt(i); if(enm.getIsBombed()==true){ System.out.println("isBombed=true"); g.drawImage(Enemy.bomb[imgNum],x,y,80,80, this); try {Thread.sleep(200);} catch (InterruptedException e) {} //g.drawImage(bomb[1],x,y,80,80, panel); //g.drawImage(bomb[2],x,y,80,80, panel); //g.drawImage(bomb[3],x,y,80,80, panel); } } } public void mouseDragged(MouseEvent e) { x=e.getX(); y=e.getY(); repaint();//重画此组件 } public void mouseMoved(MouseEvent e) { x=e.getX(); y=e.getY(); repaint(); } public void mouseClicked(MouseEvent e) { }//鼠标点击 public void mouseEntered(MouseEvent e) {}//鼠标到图形组件中 public void mouseExited(MouseEvent e) {}//鼠标移出组件 public void mousePressed(MouseEvent e) {//压下 isFire=true; } public void mouseReleased(MouseEvent e) {//释放 isFire=false; } public void startRun(){ new Thread(){ public void run(){ int countTime=0; Random random = new Random(); while(true){ if(countTime%250==0){//每隔一段时间添加一个敌机 Enemy eny=new Enemy(); eny.setOrientation(random.nextInt(100)%7); eny.setY(-40);//从顶端出现 eny.setX(random.nextInt(1000)-200);//宽度随机 eny.setIsBombed(false);//开始时，没有爆炸 enemies.add(eny); } //让敌机移动 if(countTime%10==0){ for(int i=0;i<enemies.size();i++){ Enemy en=enemies.elementAt(i); en.move(); } //删除越界的飞机 for(int i=0;i<enemies.size();i++){ Enemy en=enemies.elementAt(i); if(en.getX()<=-40||en.getX()>=640||en.getY()>=640){ enemies.remove(i); } } } //如果是开火状态，则添加子弹 if(isFire&&countTime%80==0){ Bullet ball=new Bullet(); ball.setX(x); ball.setY(y); bullets.add(ball);//将球的对象添加到集合中 } //判断ball是否越界，若是，则删除 for(int i=0;i<bullets.size();i++){ Bullet ball=bullets.elementAt(i); if(ball.getY()<=0){ bullets.remove(i);//删除数组中的第i个ball } } //让子弹移动 for(int i=0;i<bullets.size();i++){ Bullet ball=bullets.elementAt(i); ball.move(); } //看子弹是否打中敌机 for(int i=0;i<bullets.size();i++){ int buX=bullets.elementAt(i).getX(); int buY=bullets.elementAt(i).getY(); for(int j=0;j<enemies.size();j++){ int enX=enemies.elementAt(j).getX(); int enY=enemies.elementAt(j).getY(); int length=(int)(Math.sqrt((buX-enX)*(buX-enX)+(buY-enY)*(buY-enY))); if(length<60){//当子弹和敌机的中心距离相距在60个像素以内，就认为是打到了 enemies.elementAt(j).setIsBombed(true); totalCount++; repaint(); bullets.remove(i); enemies.remove(j); } } } //看敌机是否撞到自己 for(int i=0;i<enemies.size();i++){ int enX=enemies.elementAt(i).getX(); int enY=enemies.elementAt(i).getY(); if(Math.sqrt((enX-x)*(enX-x)+(enY-y)*(enY-y))<60){ isDead=true; } } //计算好新的坐标后，画图，画完再睡觉 repaint(); if(isDead){ while(true){ try { Thread.sleep(1000); } catch (InterruptedException e) { e.printStackTrace(); } if(isRestart) break; } } try { Thread.sleep(2); } catch (InterruptedException e) { e.printStackTrace(); } countTime++;//用于控制小球的移动速度 } } }.start(); } public void keyPressed(KeyEvent e) { if(e.getKeyCode()==KeyEvent.VK_SPACE) isFire=true; switch (e.getKeyCode()) { case KeyEvent.VK_LEFT: if(x>0) x-=35; break; case KeyEvent.VK_RIGHT: if(x<this.getWidth()) x+=35; break; case KeyEvent.VK_UP: if(y>0) y-=35; break; case KeyEvent.VK_DOWN: if(x<this.getHeight()) y+=35; break; case KeyEvent.VK_SPACE://如果按下空格键 isFire=true; break; default: } repaint(); } public void keyReleased(KeyEvent e) { switch (e.getKeyCode()) { case KeyEvent.VK_SPACE: isFire=false; break; } } public void keyTyped(KeyEvent e) { if(e.getKeyCode()==KeyEvent.VK_0) System.out.println("0-->"+e.getKeyCode()); if(e.getKeyCode()==KeyEvent.VK_1) System.out.println("1-->"+e.getKeyCode()); if(e.getKeyCode()==KeyEvent.VK_A) System.out.println("A-->"+e.getKeyCode()); if(e.getKeyCode()==KeyEvent.VK_B) System.out.println("B-->"+e.getKeyCode()); } }