java实现简易飞机大战

本文实例为大家分享了java实现简易飞机大战的具体代码，供大家参考，具体内容如下

整体思路

1.创建游戏窗体，添加面板JPanel，重写JPanel中的paint方法，遍历所有飞机和子弹绘制，用定时器进行重绘，实现动画效果
2.添加敌机和发射子弹用的是多线程
3.碰撞检测采用的是矩形类Rectangle中的intersects方法

代码实现

用手机查看代码好像只显示62行

英雄战机类

package com.cml.model;

import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.MouseEvent;
import java.util.ArrayList;

import com.cml.util.ImageUtil;

public class Hero {
 private int x, y;// 坐标
 private int width, height; //宽高
 private Image heroImage; // 图片
 private boolean isAlive = true;
 private ArrayList<Bullet> bullets = new ArrayList<>();
 public Hero() {
  this.x = 180;
  this.y = 600;
  this.heroImage = ImageUtil.hero;
  width = heroImage.getWidth(null);
  height = heroImage.getHeight(null);
  initBullets();
 }
 private void initBullets() {
  //用线程发射子弹
  new Thread() {
   @Override
   public void run() {
    while (isAlive) {
     bullets.add(new Bullet(Hero.this));
     try {
      sleep(200);
     } catch (InterruptedException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
     }
    }
   }
  }.start();
 }

 public Hero(int x, int y, Image heroImage) {
  super();
  this.x = x;
  this.y = y;
  this.heroImage = heroImage;
 }

 public int getX() {
  return x;
 }

 public void setX(int x) {
  this.x = x;
 }

 public int getY() {
  return y;
 }

 public void setY(int y) {
  this.y = y;
 }

 public Image getHeroImage() {
  return heroImage;
 }

 public void setHeroImage(Image heroImage) {
  this.heroImage = heroImage;
 }

 //绘制英雄战机
 public void paint(Graphics g) {
  if (!isAlive) {
   heroImage = ImageUtil.hero_destory;
  }
  g.drawImage(heroImage, x, y, null);
  for (int i = 0; i < bullets.size(); i++) {
   Bullet bullet = bullets.get(i);
   if (bullet.getY() < 0) {
    bullets.remove(bullet);
   }
   bullet.paint(g);
  }
 }

 public int getWidth() {
  return width;
 }

 public void setWidth(int width) {
  this.width = width;
 }

 public int getHeight() {
  return height;
 }

 public void setHeight(int height) {
  this.height = height;
 }

 //鼠标拖拽移动
 public void mouseDragged(MouseEvent e) {
  if (isAlive) {
   int x0 = e.getX();
   int y0 = e.getY();
   if (isInScopePanel(x0, y0)) {
    if (isInScopeImageWidth(x0) && isInScopeImageheigth(y0)) {
     this.x = x0 - width / 2;
     this.y = y0 - height / 2;
    }
   } else {
    if (isInScopeImageWidth(x0)) {
     this.x = x0 - width / 2;
    }
    if (isInScopeImageheigth(y0)) {
     this.y = y0 - height / 2;
    }
   }

  }
  
 }

 private boolean isInScopePanel(int x0, int y0) {
  if (x0 > 10 && x0 < 460 && y0 > 140 && y0 < 730) {
   return true;
  }
  return false;
 }

 private boolean isInScopeImageheigth(int y0) {
  if (y0 >= y && y0 <= y + height) {
   if (y0 > 140 && y0 < 730) {
    return true;
   }
  }
  return false;
 }

 private boolean isInScopeImageWidth(int x0) {
  if (x0 >= x && x0<= x + width) {
   if (x0 > 10 && x0 < 460) {
    return true;
   }
  }
  return false;
 }
 public ArrayList<Bullet> getBullets() {
  return bullets;
 }
 public void setAlive(boolean isAlive) {
  this.isAlive = isAlive;
 }
 public boolean isAlive() {
  return isAlive;
 }
}

敌机类

package com.cml.model;

import java.awt.Graphics;
import java.awt.Image;
import java.util.Random;

import com.cml.util.ImageUtil;

public class Enemy {
 private Random random = new Random();

 private int x, y;// 坐标
 private int width, height; // 宽高
 private boolean isAlive = true;
 private static final int SPEED = 4;
 private Image enemyImage; // 图片

 public Enemy() {
  RandomEnemyXY();
  enemyImage = ImageUtil.enemy;
  width = enemyImage.getWidth(null);
  height = enemyImage.getHeight(null);
 }

 private void RandomEnemyXY() {
  x = random.nextInt(430);
  y = 0;
 }

 public void paint(Graphics g) {
  if (!isAlive) {
   enemyImage = ImageUtil.bomb;
  }
  g.drawImage(enemyImage, x, y, null);
  move();
 }

 public boolean isAlive() {
  return isAlive;
 }

 public void setAlive(boolean isAlive) {
  this.isAlive = isAlive;
 }

 private void move() {
  if (isAlive) {
   y += SPEED;
  }
  
 }

 public int getX() {
  return x;
 }

 public void setX(int x) {
  this.x = x;
 }

 public int getY() {
  return y;
 }

 public void setY(int y) {
  this.y = y;
 }

 public int getWidth() {
  return width;
 }

 public void setWidth(int width) {
  this.width = width;
 }

 public int getHeight() {
  return height;
 }

 public void setHeight(int height) {
  this.height = height;
 }
}

子弹类

package com.cml.model;

import java.awt.Graphics;
import java.awt.Image;

import com.cml.util.ImageUtil;

public class Bullet {
 private int x, y;// 坐标
 private int width, height; // 宽高
 private static final int SPEED = 10; // 速度
 private Image bulletImage; // 图片

 public Bullet(Hero hero) {
  bulletImage = ImageUtil.bullet;
  width = bulletImage.getWidth(null);
  height = bulletImage.getHeight(null);
  this.x = hero.getX() + hero.getWidth() / 2 - width / 2;
  this.y = hero.getY();
 }

 public int getX() {
  return x;
 }

 public void setX(int x) {
  this.x = x;
 }

 public int getY() {
  return y;
 }

 public void setY(int y) {
  this.y = y;
 }

 public int getWidth() {
  return width;
 }

 public void setWidth(int width) {
  this.width = width;
 }

 public int getHeight() {
  return height;
 }

 public void setHeight(int height) {
  this.height = height;
 }

 public void paint(Graphics g) {
  g.drawImage(bulletImage, x, y, null);
  move();
 }

 private void move() {
  y -= SPEED;
 }
}

图片工具类

package com.cml.util;

import java.awt.image.BufferedImage;
import java.io.IOException;

import javax.imageio.ImageIO;

public class ImageUtil {
 public static BufferedImage hero;
 public static BufferedImage enemy;
 public static BufferedImage bullet;
 public static BufferedImage bg;
 public static BufferedImage bomb;
 public static BufferedImage hero_destory;
 public static BufferedImage login;
 
 static {
  try {
   hero = ImageIO.read(ImageUtil.class.getResource("/img/hero.png"));
   enemy = ImageIO.read(ImageUtil.class.getResource("/img/enemy.png"));
   bullet = ImageIO.read(ImageUtil.class.getResource("/img/bullet.png"));
   bg = ImageIO.read(ImageUtil.class.getResource("/img/bg.png"));
   bomb = ImageIO.read(ImageUtil.class.getResource("/img/bomb.png"));
   hero_destory = ImageIO.read(ImageUtil.class.getResource("/img/hero_destory.png"));
//   login = ImageIO.read(new File("img/login.png"));
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
 }
}

游戏窗体类

package com.cml.frame;

import java.awt.Font;
import java.awt.Graphics;
import java.awt.Rectangle;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.ArrayList;
import java.util.Timer;
import java.util.TimerTask;

import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;

import com.cml.model.Bullet;
import com.cml.model.Enemy;
import com.cml.model.Hero;
import com.cml.util.ImageUtil;
import com.sun.java.swing.plaf.windows.resources.windows;

public class GameFrame extends JFrame {

 private JPanel gamePanel;

 private Hero hero;
 private ArrayList<Enemy> enemies = new ArrayList<Enemy>();
 private ArrayList<Bullet> hero_bullet;
 private Timer timer;

 public GameFrame() {
  // 初始化游戏窗体
  initGameFrame();
  // 初始化英雄战机
  initHero();
  // 初始化游戏面板
  initGamePanel();
  // 初始化定时器
  initTimer();
  // 初始化敌军战机
  initEnemies();
 }

 private void initEnemies() {
  new Thread() {
   @Override
   public void run() {
    while (true) {
     try {
      Thread.sleep(1000);
     } catch (InterruptedException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
     }
     enemies.add(new Enemy());
    }

   }
  }.start();

 }

 private void initTimer() {
  timer = new Timer();
  TimerTask task = new TimerTask() {

   @Override
   public void run() {
    gamePanel.repaint();
   }
  };
  timer.scheduleAtFixedRate(task, 0, 20);
 }

 private void initHero() {
  hero = new Hero();
  hero_bullet = hero.getBullets();
 }

 private void initGameFrame() {
  setTitle("打飞机");
  setSize(480, 800);
  setLocationRelativeTo(null);
  setDefaultCloseOperation(EXIT_ON_CLOSE);
  setResizable(false);
 }

 private void initGamePanel() {
  gamePanel = new JPanel() {
   private int score = 0;
   /**
    * 判断敌机与子弹相撞
    * @param enemy
    * @param bullet
    * @return
    */
   public boolean isHit(Enemy enemy, Bullet bullet) {
    Rectangle r1 = new Rectangle(enemy.getX(), enemy.getY(), enemy.getWidth(), enemy.getHeight());
    Rectangle r2 = new Rectangle(bullet.getX(), bullet.getY(), bullet.getWidth(), bullet.getHeight());
    return r1.intersects(r2);
   }
   
   /**
    * 判断英雄战机与敌机相撞
    * @param enemy
    * @param hero
    * @return
    */
   public boolean isHit(Enemy enemy, Hero hero) {
    Rectangle r1 = new Rectangle(enemy.getX(), enemy.getY(), enemy.getWidth(), enemy.getHeight());
    Rectangle r2 = new Rectangle(hero.getX() + hero.getWidth() / 3, hero.getY() + hero.getHeight() / 3,
      hero.getWidth() / 3, hero.getHeight() / 3);
    return r1.intersects(r2);
   }

   @Override
   public void paint(Graphics g) {
    super.paint(g);
    g.drawImage(ImageUtil.bg, 0, 0, 480, 800, null);
    for (int i = 0; i < enemies.size(); i++) {
     Enemy enemy = enemies.get(i);
     for (int j = 0; j < hero_bullet.size(); j++) {
      Bullet bullet = hero_bullet.get(j);
      if (isHit(enemy, bullet) && enemy.isAlive()) {
       enemy.setAlive(false);
       hero_bullet.remove(bullet);
       new Thread() {
        public void run() {
         score += 10;
         try {
          sleep(200);
         } catch (InterruptedException e) {
          // TODO Auto-generated catch block
          e.printStackTrace();
         }
         enemies.remove(enemy);
        };
       }.start();
       break;
      }
     }
     if (isHit(enemy, hero)) {
      timer.cancel();
      hero.setAlive(false);
      enemy.setAlive(false);
      JOptionPane.showMessageDialog(this, "游戏结束，您的得分是：" + score);
      System.exit(0);
     }
     if (enemy.getY() > 800) {
      enemies.remove(enemy);
     }
     enemy.paint(g);
    }
    if (hero != null) {
     hero.paint(g);
    }
    g.setFont(new Font("宋体", Font.BOLD, 24));
    g.drawString("得分:" + score, 350, 30);

   }
  };
  add(gamePanel);
  // 设置拖拽监听事件
  gamePanel.addMouseMotionListener(new MouseAdapter() {

   @Override
   public void mouseDragged(MouseEvent e) {
    if (hero != null) {
     hero.mouseDragged(e);
    }
   }
  });
 }

}

启动游戏类

package com.cml.main;

import com.cml.frame.GameFrame;

public class Start {

 public static void main(String[] args) {
  /**
   * 初始化窗体
   */
  new GameFrame().setVisible(true);
 }
}

运行效果图

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持源码搜藏网。