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【Java小项目】--- 飞机大战(源码+注释)
前言：
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构思
首先，要把整体的游戏框架和内容构思出来(根据预先构思游戏里存在的组件内容和游戏功能抽象出指定类)。以我的小游戏为例：
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1.主界面框架类：
显示开始界面 -
2.弹出界面类：
JDialog 窗体的功能是从一个窗体中弹出另一个窗体，就像是在使用 IE 浏览器时弹出的确定对话框，JDialog 窗体与 JFrame 窗体形式基本相同，设置窗体的特性时调用的方法名称都基本相同，如设置窗体大小、窗体关闭状态等 -
3.游戏面板类：GamePanel (extends JPanel)
真正显示飞机大战动态游戏画面，并且还添加了按钮JButton用于控制游戏开始暂停。 -
4.玩家飞机类：Hero
移动玩家飞机、画玩家飞机等其他与玩家飞机相关的方法 -
5.敌机类：AirPlane
移动敌机、画敌机 -
6.子弹类
移动子弹、绘制子弹 -
7碰撞类：Collision
检测各种碰撞情况 -
8.主类：Main
开启程序
主类(ShootGame)
package cn.tede.shoot; import javax.imageio.ImageIO; import javax.swing.*; import java.awt.*; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.awt.image.BufferedImage; import java.io.IOException; import java.util.Arrays; import java.util.Random; import java.util.TimerTask; //import static java.util.concurrent.locks.StampedLock.STATE; public class ShootGame extends JPanel { public static final int WIDTH =400; public static final int HEIGHT =654; private int state; public static final int START = 0; public static final int RUNNING = 1; public static final int PAUSE = 2; public static final int GAME_OVER =4; public static BufferedImage background; public static BufferedImage start; public static BufferedImage airplane; public static BufferedImage bee; public static BufferedImage bullet; public static BufferedImage hero0; public static BufferedImage hero1; public static BufferedImage pause; public static BufferedImage gameover; private FlyingObject[] flyings = {}; //敌机数组 private Bullet [] bullets = {}; //子弹数组 private Hero hero = new Hero();//英雄鸡 private Timer timer;//定时器 private int intervel = 1000/100; //时间间隔，十毫秒 private int score = 0;//得分 // public ShootGame(){ flyings = new FlyingObject[2]; flyings[0] = new AirPlane(); flyings[1] = new Bee(); bullets = new Bullet[1]; bullets[0] = new Bullet(180,300); // } static{//静态代码块 try { background= ImageIO.read(ShootGame.class.getResource("background.png")); start= ImageIO.read(ShootGame.class.getResource("start.png")); airplane = ImageIO.read(ShootGame.class.getResource("airplane.png")); bee = ImageIO.read(ShootGame.class.getResource("bee.png")); bullet = ImageIO.read(ShootGame.class.getResource("bullet.png")); //bullet = ImageIO.read(ShootGame.class.getResource("B1.png")); //hero0= ImageIO.read(ShootGame.class.getResource("C.png")); hero0= ImageIO.read(ShootGame.class.getResource("hero0.png")); hero1 = ImageIO.read(ShootGame.class.getResource("hero1.png")); pause= ImageIO.read(ShootGame.class.getResource("pause.png")); gameover = ImageIO.read(ShootGame.class.getResource("gameover.png")); } catch (IOException e) { e.printStackTrace(); } } @Override public void paint(Graphics g) { g.drawImage(background,0,0,null);//画背景图片 paintHero(g); paintBullets(g); paintFlyingObject(g); paintScore(g);//画分数 // paintPause(g); paintState(g); } /** * 画游戏状态 * */ public void paintState(Graphics g){ switch(state){ case START: g.drawImage(start,0,0,null); break; case PAUSE: g.drawImage(pause, 0, 0, null); break; case GAME_OVER: g.drawImage(gameover, 0, 0, null); break; } } /** * 画分数 * @param g */ public void paintScore(Graphics g){ Font font = new Font(Font.SANS_SERIF, Font.BOLD,4); g.setColor(new Color(0xffff0));//设置字体 g.drawString("SCORE"+score,10,25); g.drawString("LIFE"+hero.getLife(),10,45); } //画英雄鸡 public void paintHero(Graphics g){ g.drawImage(hero.getImage(),hero.getX(),hero.getY(),null); } //画子弹 public void paintBullets(Graphics g){ for(int i = 0;i < bullets.length; i++){ Bullet b = bullets[i]; g.drawImage(b.getImage(),b.getX(),b.getY(),null); } } //画飞行物 public void paintFlyingObject(Graphics g){ for(int i = 0; i< flyings.length;i++){ FlyingObject f = flyings[i]; g.drawImage(f.getImage(),f.getX(),f.getY(),null); } } // //画暂停 // public void paintPause(Graphics g){ // g.drawImage(pause,0,0,null); // } //随机生成飞行物 public static FlyingObject nextOne(){ //返回 飞行物对象 Random random = new Random(); int type = random.nextInt(20);//生成随机数0-19 if(type == 0){ return new Bee(); }else{ return new AirPlane(); } } int flyEnterIndex = 0; //飞行物入场 public void enterAction () { flyEnterIndex++; if (flyEnterIndex % 40 == 0) {//每调用40次该方法 FlyingObject obj = nextOne();//随机生成一个飞行物 flyings = Arrays.copyOf(flyings, flyings.length + 1);//扩容 flyings[flyings.length - 1] = obj;//放在最后一位 } } /* 实现飞行物移动 */ public void stepAction() { for (int i = 0; i < flyings.length; i++){ FlyingObject f = flyings[i]; f.step(); } for(int i = 0;i<bullets.length;i++){ /** * 子弹走 * */ Bullet b = bullets[i]; b.step(); // bullets[i].step(); } hero.step(); } int shootIndex = 0; //射击 public void shootAction() { //调用30次该方法发射一次子弹， //英雄级打出子弹 //扩容 //追加数组 shootIndex++; if (shootIndex % 30 == 0) {//每调用30次该方法 Bullet [] bs = hero.shoot();//英雄鸡打出子弹 bullets = Arrays.copyOf(bullets, bullets.length + bs.length);//扩容 System.arraycopy(bs,0,bullets,bullets.length - bs.length,bs.length); } } public void bangAction() { for (int i = 0; i< bullets.length; i++){ Bullet b = bullets[i]; bang(b); } } private void bang(Bullet bullet) { int index = -1; for (int i = 0; i <flyings.length;i++){ FlyingObject obj = flyings[i]; if(obj.shootBy(bullet)){ index = i; break; } } if(index != -1) { //击中 FlyingObject one = flyings[index];//记录被击中的飞行物 FlyingObject temp = flyings[index];//被击中的飞行物与最后一个飞行物交换 flyings[index] = flyings[flyings.length - 1]; flyings[flyings.length - 1] = temp; //删除最后一个飞行物(被击中的飞行物) flyings = Arrays.copyOf(flyings, flyings.length - 1); //检测one的类型，若果是敌人就加分 if (one instanceof Enemy) { Enemy e = (Enemy) one; score += e.getScore(); } if (one instanceof Award) { Award a = (Award) one; int type = a.getType(); switch (type) { case Award.DOUBLE_FIRE: hero.addDoubleFire(); break; case Award.LIFE: hero.addLife(); break; } } } //如果one的类型就奖励，则设置奖励 } /** * 删除越界的飞行物和子弹，小蜜蜂，飞机 */ public void outOfBoundsAction() { int index = 0; FlyingObject[] flyingLives = new FlyingObject[flyings.length];//没有碰撞的飞行物 for (int i = 0; i < flyings.length; i++) { FlyingObject f = flyings[i]; if (!f.outOfBounds()) { flyingLives[index++] = f;//没有越界的存储到或者的数组 } } flyings = Arrays.copyOf(flyingLives, index);//没有越界的都留着 index = 0; Bullet[] bulletLives = new Bullet[bullets.length];//存储没有发生碰撞的子弹 for (int i = 0; i < bullets.length; i++) { Bullet b = bullets[i]; if (!b.outOfBounds()) {//如果没有越界 bulletLives[index++] = b; } } bullets = Arrays.copyOf(bulletLives,index); } /** * 检测游戏是否结束 */ public boolean isGameOver() { for (int i = 0; i < flyings.length; i++) {//遍历所有飞行物 int index = -1;//没有发生碰撞 FlyingObject obj = flyings[i]; if(hero.hit(obj)){//检查英雄鸡与飞行物是否碰撞 hero.subtractLife();//减命 hero.setDoubleFire(0);//双倍火力清零 index = i;//将碰撞飞行物的下标给到index } if(index!=-1){ FlyingObject t = flyings[index]; flyings[index] = flyings[flyings.length - 1]; flyings[flyings.length - 1] = t;//发生碰撞的元素和最后一个元素交换 flyings = Arrays.copyOf(flyings,flyings.length-1); } } return hero.getLife() <= 0; } /** * 检查游戏是否结束 */ public void checkGameOverAction() { if(isGameOver()){//如果已经结束 state = GAME_OVER;//改变状态为结束 } } public void action(){ //鼠标监听事件 MouseAdapter i = new MouseAdapter(){ public void mouseMoved(MouseEvent e) {//鼠标移动 if(state == RUNNING) { int x = e.getX(); int y = e.getY(); hero.moveTo(x, y); } } public void mouseEntered(MouseEvent e){//鼠标进入 if(state == PAUSE){ state = RUNNING; } } @Override public void mouseExited(MouseEvent e) {//鼠标退出 if(state!=GAME_OVER&&state!=START){ state = PAUSE;//游戏装态不是GAMEOVER ，鼠标离开窗口 ，设置暂停 } } @Override public void mouseClicked(MouseEvent mouseEvent) { //鼠标点击事件 switch(state){ case START: state = RUNNING; break; case GAME_OVER://当状态是结束的时候，点击鼠标，会重新初始化各个对象，状态变为开始 flyings = new FlyingObject[0]; bullets = new Bullet[0]; hero = new Hero(); score = 0; state = START; } } }; this.addMouseListener(i);//处理鼠标点击事件 this.addMouseMotionListener(i);//处理鼠标滑动操作 //启动执行代码 java.util.Timer timer = new java.util.Timer(); timer.schedule(new TimerTask() { public void run() { if(state == RUNNING){ enterAction();//飞行物入场 stepAction();//飞行物走一步 shootAction(); bangAction(); isGameOver(); checkGameOverAction();//检查游戏结束 outOfBoundsAction(); } repaint();//重绘，调用paint方法 } }, intervel ,intervel);//10毫秒以后，每隔10毫秒执行一次 } public static void main(String[] args){ JFrame frame = new JFrame("飞机大战");//画框 ShootGame game = new ShootGame(); frame.add(game); frame.setSize(WIDTH, HEIGHT);//窗口的大小 frame.setAlwaysOnTop(true);//窗口在最上边 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//点x关闭 frame.setLocationRelativeTo(null);//设置窗体的初始记录 frame.setVisible(true);//尽快调用paint方法 game.action(); } }- 1
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英雄机(Hero)
package cn.tede.shoot; import java.awt.image.BufferedImage; //英雄鸡 public class Hero extends FlyingObject { BufferedImage[] images = {}; int index = 0; private int doubleFire;//双倍火力的子弹数量 private int life;//命的数量 public Hero() { life = 3; doubleFire = 0; this.image = ShootGame.hero0; images = new BufferedImage[]{ShootGame.hero0, ShootGame.hero1}; width = image.getWidth(); height = image.getHeight(); x = 150; y = 400; } @Override public void step() { if (images.length > 0) { image = images[index++ / 10%images.length]; } } @Override public boolean outOfBounds() { return false; } @Override//重写 public boolean hitColumn() { return false; } //发射子弹 public Bullet[] shoot() { int xStep = width / 4; int yStep = 20; if (doubleFire > 0) {//双倍火力 Bullet[] bullets = new Bullet[5];//2 bullets[0] = new Bullet(x + xStep, y - yStep); bullets[1] = new Bullet(x + 3 * xStep, y - yStep); bullets[2] = new Bullet(x + 2 * xStep, y - yStep); bullets[3] = new Bullet(x + 0 * xStep, y - yStep); bullets[4] = new Bullet(x + 4 * xStep, y - yStep); doubleFire -= 2; return bullets; } else { Bullet[] bullets = new Bullet[1]; bullets[0] = new Bullet(x + 2 * xStep, y - yStep); return bullets; } } /** * * @param x:鼠标x坐标位置 * @param y;鼠标y坐标位置 */ public void moveTo(int x, int y) { this.x = x- width/2;//hero.x+width/2; this.y = y - height/2; } public void addDoubleFire(){ doubleFire += 40; } public void addLife(){ life++; } //获取英雄鸡命数 public int getLife(){ return life; } // public boolean outOfBounds(){ // return false; // } //减命 public void subtractLife(){ life--; } //重新设计双倍火力值 public void setDoubleFire(int doubleFire){ this.doubleFire = doubleFire; } //碰撞的算法 public boolean hit(FlyingObject other){ int x1 = other.x - this.width/2 ; int x2 = other.x + this.width/2 + this.width; int y1 = other.y - this.height/2 ; int y2 = other.y + other.height + other.height/2; return this.x + this.width/2>x1 &&this.x+this.width/2<x2 &&this.y+this.height/2>y1 &&this.y+this.height/2<y2; } }- 1
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飞行物(FlyingObject)
package cn.tede.shoot; //父类 import java.awt.image.BufferedImage; public abstract class FlyingObject { protected int x;//x坐标 protected int y;//y坐标 protected int width;//宽 protected int height;//高 protected BufferedImage image;//图片 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 BufferedImage getImage() { return image; } public void setImage(BufferedImage image) { this.image = image; } public abstract void step(); public boolean shootBy(Bullet bullet){ int x= bullet.x; int y = bullet.y; return this.x<x&&x<this.x+width&&this.y<y && y<this.y+height; } /** * 检查是否出界 * @return */ public abstract boolean outOfBounds();// /** * 检测是否碰墙 */ public abstract boolean hitColumn(); }- 1
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子弹(Bullet)
package cn.tede.shoot; /** * 子弹 */ public class Bullet extends FlyingObject{ private int speed = 3;//移动速度 public Bullet(int x,int y){ this.x = x; this.y = y; this.image = ShootGame.bullet; } @Override public void step() { y -= speed; } @Override public boolean outOfBounds() { return y<-height; } @Override public boolean hitColumn() { return y<-height; } }- 1
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奖励蜜蜂(Bee)类
package cn.tede.shoot; import java.util.Random; //蜜蜂 public class Bee extends FlyingObject implements Award{ private int xSpeed = 1;//x坐标的移动速度 private int ySpeed = 2;//y坐标的移动速度 private int awardType;//奖励类型 public Bee(){ this.image = ShootGame.bee; width = image.getWidth(); height = image.getHeight(); y = - height; //y = 200; x= (int)Math.random()*(ShootGame.WIDTH - width); Random r =new Random(); //int x = r.nextInt(ShootGame.WIDTH - width); //x = 100; awardType = r.nextInt(2); } @Override public int getType() {//奖励类型 return awardType; } @Override public void step() { x+= xSpeed; y+= ySpeed; if(x>ShootGame.WIDTH - width){ xSpeed = -1; } if(x<0){ xSpeed = 1; } } @Override public boolean outOfBounds() { return y>ShootGame.HEIGHT; } @Override public boolean hitColumn() { return false; } }- 1
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敌飞机类(AirPlane)
package cn.tede.shoot; public class AirPlane extends FlyingObject implements Enemy{ private int speed = 2;//敌人飞机移动速度2 public AirPlane(){ this.image = ShootGame.airplane; width = image.getWidth(); height = image.getHeight(); y= -height; x = (int)(Math.random()*(ShootGame.WIDTH - width)); // x = 300; // y = 190; } @Override public int getScore() { return 5; } @Override public void step() { y+=speed; } @Override public boolean outOfBounds() { return y>ShootGame.HEIGHT; } @Override public boolean hitColumn() { return y>ShootGame.HEIGHT; } }- 1
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奖励接口
package cn.tede.shoot; /** * 奖励 */ public interface Award { int DOUBLE_FIRE = 0;//双倍火力 int LIFE = 1;//一条命 /** * 获得奖励的类型为上面的0或者1 * @return */ int getType(); }- 1
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计分接口
ackage cn.tede.shoot; /** * 敌人 */ public interface Enemy { int getScore(); }- 1
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- 原文地址：https://blog.csdn.net/m0_68089732/article/details/126276523