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
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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
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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
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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
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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
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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
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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。
原文链接：https://blog.csdn.net/weixin_48598155/article/details/106959333