前言

坦克大战

---

一、创建窗口–Frame类

package com.zcw.tank;import java.awt.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;/*** @ClassName : tank* @Description :* @Author : Zhaocunwei* @Date: 2020-07-20 12:03*/
public class tank {public static void main(String[] args) {Frame f = new Frame();f.setSize(800,600);f.setResizable(false);f.setTitle("tank war");f.setVisible(true);f.addWindowListener(new WindowAdapter() {@Overridepublic void windowClosing(WindowEvent e) {System.exit(0);}});}
}

二、设置标题栏内容

1.继承Frame类，编辑内容

package com.zcw.tank.demo;import java.awt.*;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;/*** @ClassName : TankFrame* @Description :* @Author : Zhaocunwei* @Date: 2020-07-20 12:46*/
public class TankFrame extends Frame {int x =200; int y= 200;public TankFrame(){setSize(800,600);setResizable(false);setTitle("tank war");setVisible(true);//添加监听this.addKeyListener(new MyKeyListener());addWindowListener(new WindowAdapter() {@Overridepublic void windowClosing(WindowEvent e) {System.exit(0);}});}/*** 当窗口打开时（重新绘制时），会自动调用这个方法* 系统自带的画笔：Graphics* @param g*/@Overridepublic void paint(Graphics g) {g.fillRect(x,y,50,50);
//        x +=10;
//        y +=10;}class MyKeyListener extends KeyAdapter{boolean bL = false;boolean bU = false;boolean bR =false;boolean bD = false;@Overridepublic void keyPressed(KeyEvent e) {int key = e.getKeyCode();switch (key){case KeyEvent.VK_LEFT:bL = true;break;case KeyEvent.VK_UP:bU=true;break;case KeyEvent.VK_RIGHT:bR = true;break;case KeyEvent.VK_DOWN:bD=true;break;default:break;}
//            x+=10;//重新打开窗口
//            repaint();}@Overridepublic void keyReleased(KeyEvent e) {int key = e.getKeyCode();switch (key){case KeyEvent.VK_LEFT:bL = false;break;case KeyEvent.VK_UP:bU=false;break;case KeyEvent.VK_RIGHT:bR = false;break;case KeyEvent.VK_DOWN:bD=false;break;default:break;}}}
}

package com.zcw.tank;import com.zcw.tank.demo.TankFrame;/*** @ClassName : tank* @Description :* @Author : Zhaocunwei* @Date: 2020-07-20 12:03*/
public class Tank {public static void main(String[] args) throws InterruptedException {TankFrame tf = new TankFrame();while(true){Thread.sleep(50);tf.repaint();}}
}

三、学习graphics类，画图

• 创建enum

package com.zcw.tank;public enum Dir {LEFT,UP,RIGHT,DOWN
}

四、坦克打出一颗子弹

五、把坦克换成图片

https://download.csdn.net/download/qq_32370913/12643386

package com.zcw.tank;import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;/*** @ClassName : ResourceMgr* @Description : 加载图片* @Author : Zhaocunwei* @Date: 2020-07-20 22:40*/
public class ResourceMgr {public  static BufferedImage tankL,tankU,tankR,tankD;static {try {tankL = ImageIO.read(ResourceMgr.class.getClassLoader().getResourceAsStream("images/tankL.gif"));tankU = ImageIO.read(ResourceMgr.class.getClassLoader().getResourceAsStream("images/tankU.gif"));tankR = ImageIO.read(ResourceMgr.class.getClassLoader().getResourceAsStream("images/tankR.gif"));tankD = ImageIO.read(ResourceMgr.class.getClassLoader().getResourceAsStream("images/tankD.gif"));} catch (Exception e) {e.printStackTrace();}}
}

六、消灭敌人坦克

1.创建碰撞检测

声音素材
https://download.csdn.net/download/qq_32370913/12643927

最终代码

package com.zcw.tank;import javax.sound.sampled.*;
import java.io.IOException;/*** @ClassName : Audio* @Description :* @Author : Zhaocunwei* @Date: 2020-07-20 20:41*/
public class Audio{byte[] b = new byte[1024 * 1024 * 15];public void loop() {try {while (true) {int len = 0;sourceDataLine.open(audioFormat, 1024 * 1024 * 15);sourceDataLine.start();//System.out.println(audioInputStream.markSupported());audioInputStream.mark(12358946);while ((len = audioInputStream.read(b)) > 0) {sourceDataLine.write(b, 0, len);}audioInputStream.reset();sourceDataLine.drain();sourceDataLine.close();}} catch (Exception e) {e.printStackTrace();}}private AudioFormat audioFormat = null;private SourceDataLine sourceDataLine = null;private DataLine.Info dataLine_info = null;private AudioInputStream audioInputStream = null;public Audio(String fileName) {try {audioInputStream = AudioSystem.getAudioInputStream(Audio.class.getClassLoader().getResource(fileName));audioFormat = audioInputStream.getFormat();dataLine_info = new DataLine.Info(SourceDataLine.class, audioFormat);sourceDataLine = (SourceDataLine) AudioSystem.getLine(dataLine_info);//FloatControl volctrl=(FloatControl)sourceDataLine.getControl(FloatControl.Type.MASTER_GAIN);//volctrl.setValue(-40);//} catch (Exception e) {e.printStackTrace();}}public void play() {try {byte[] b = new byte[1024*5];int len = 0;sourceDataLine.open(audioFormat, 1024*5);sourceDataLine.start();//System.out.println(audioInputStream.markSupported());audioInputStream.mark(12358946);while ((len = audioInputStream.read(b)) > 0) {sourceDataLine.write(b, 0, len);}// audioInputStream.reset();sourceDataLine.drain();sourceDataLine.close();} catch (Exception e) {e.printStackTrace();}}public void close() {try {audioInputStream.close();} catch (IOException e) {e.printStackTrace();}}public static void main(String[] args) {// Audio a = new Audio("audio/explode.wav");Audio a = new Audio("audio/war1.wav");a.loop();}}

package com.zcw.tank;import java.awt.*;/*** @ClassName : Bullet* @Description : 炮弹* @Author : Zhaocunwei* @Date: 2020-07-20 20:21*/
public class Bullet {private static final int SPEED =7;public static final int WIDTH=ResourceMgr.bulletD.getWidth();public static  final int HEIGHT = ResourceMgr.bulletD.getHeight();private int x,y;private Dir dir;private TankFrame tf =null;private boolean liveing = true;private Group group = Group.BAD;Rectangle rect = new Rectangle();public Bullet(int x, int y, Dir dir,TankFrame tf,Group group) {this.x = x;this.y = y;this.dir = dir;this.tf = tf;this.group = group;tf.bullets.add(this);rect.x = this.x;rect.y = this.y;rect.width = WIDTH;rect.height = HEIGHT;}public void paint(Graphics g){if(!liveing){tf.bullets.remove(this);}switch (dir){case LEFT:g.drawImage(ResourceMgr.bulletL,x,y,null);break;case UP:g.drawImage(ResourceMgr.bulletU,x,y,null);break;case RIGHT:g.drawImage(ResourceMgr.bulletR,x,y,null);break;case DOWN:g.drawImage(ResourceMgr.bulletD,x,y,null);break;}move();}private void move(){switch (dir){case LEFT:x -=SPEED;break;case UP:y -=SPEED;break;case RIGHT:x+=SPEED;break;case DOWN:y+=SPEED;break;}//需要更新 rect 对象rect.x = this.x;rect.y = this.y;if(x<0 || y <0 || x > TankFrame.GAME_WIDTH || y> TankFrame.GAME_HEIGHT){liveing =false;}}public void collideWith(Tank tank) {if(this.group == tank.getGroup()){return;}//判断两个方框是否相交if(rect.intersects(tank.rect)){tank.die();this.die();int eX = tank.getX() + Tank.WIDTH/2 - Explode.WIDTH/2;int eY = tank.getY() + Tank.HEIGHT/2 -Explode.HEIGHT/2;tf.explodes.add(new Explode(eX,eY,tf));}}private void die() {this.liveing=false;}public Group getGroup() {return group;}public void setGroup(Group group) {this.group = group;}
}

package com.zcw.tank;/*** @ClassName : DefaultFireStrategy* @Description :* @Author : Zhaocunwei* @Date: 2020-07-21 14:05*/
public class DefaultFireStrategy  implements  FireStrategy{@Overridepublic void fire(Tank t) {int bx = t.x + Tank.WIDTH / 2 - Bullet.WIDTH / 2;int by = t.y + Tank.HEIGHT / 2 - Bullet.HEIGHT / 2;new Bullet(bx, by, t.dir, t.tf, t.group);if(t.group == Group.GOOD){new Thread(() ->{new Audio("audio/tank_fire.wav").play();}).start();}}
}

package com.zcw.tank;public enum Dir {LEFT,UP,RIGHT,DOWN
}

package com.zcw.tank;import java.awt.*;/*** @ClassName : Bullet* @Description : 炮弹* @Author : Zhaocunwei* @Date: 2020-07-20 20:21*/
public class Explode {public static final int WIDTH=ResourceMgr.explodes[0].getWidth();public static  final int HEIGHT = ResourceMgr.explodes[0].getHeight();private int x,y;private TankFrame tf =null;private int step =0;public Explode(int x, int y,  TankFrame tf) {this.x = x;this.y = y;this.tf = tf;}public void paint(Graphics g){g.drawImage(ResourceMgr.explodes[step++],x,y,null);if(step >=ResourceMgr.explodes.length){tf.explodes.remove(this);}}}

package com.zcw.tank;public interface FireStrategy {void fire(Tank t);
}

package com.zcw.tank;/*** @ClassName : FourDirFireStrategy* @Description :* @Author : Zhaocunwei* @Date: 2020-07-21 14:16*/
public class FourDirFireStrategy implements FireStrategy{@Overridepublic void fire(Tank t) {int bx = t.x + Tank.WIDTH / 2 - Bullet.WIDTH / 2;int by = t.y + Tank.HEIGHT / 2 - Bullet.HEIGHT / 2;Dir[] dirs = Dir.values();for(Dir dir : dirs){new Bullet(bx, by, dir, t.tf, t.group);}if(t.group == Group.GOOD){new Thread(() ->{new Audio("audio/tank_fire.wav").play();}).start();}}
}

package com.zcw.tank;public enum Group {GOOD,BAD
}

package com.zcw.tank;import java.awt.*;
import java.awt.image.BufferedImage;/*** @ClassName : ImageUtil* @Description :* @Author : Zhaocunwei* @Date: 2020-07-19 19:10*/
public class ImageUtil {public static BufferedImage rotateImage(final BufferedImage bufferedimage,final int degree) {int w = bufferedimage.getWidth();int h = bufferedimage.getHeight();int type = bufferedimage.getColorModel().getTransparency();BufferedImage img;Graphics2D graphics2d;(graphics2d = (img = new BufferedImage(w, h, type)).createGraphics()).setRenderingHint(RenderingHints.KEY_INTERPOLATION,RenderingHints.VALUE_INTERPOLATION_BILINEAR);graphics2d.rotate(Math.toRadians(degree), w / 2, h / 2);graphics2d.drawImage(bufferedimage, 0, 0, null);graphics2d.dispose();return img;}
}

package com.zcw.tank;import java.io.IOException;
import java.util.Properties;/*** @ClassName : PropertyMgr* @Description :获取配置文件信息* @Author : Zhaocunwei* @Date: 2020-07-11 20:27*/
public class PropertyMgr {static Properties propes = new Properties();static {try {propes.load(PropertyMgr.class.getClassLoader().getResourceAsStream("config"));} catch (IOException e) {e.printStackTrace();}}public static Object get(String key){if(propes == null ){return null;}return  propes.get(key);}public static void main(String[] args) {System.out.println(PropertyMgr.get("initTankCount"));}
}

package com.zcw.tank;import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;/*** @ClassName : ResourceMgr* @Description : 加载图片* @Author : Zhaocunwei* @Date: 2020-07-20 22:40*/
public class ResourceMgr {public  static BufferedImage goodTankL,goodTankU,goodTankR,goodTankD;public  static BufferedImage badTankL,badTankU,badTankR,badTankD;public static BufferedImage bulletL,bulletU,bulletR,bulletD;public static BufferedImage[] explodes = new BufferedImage[16];static {try {goodTankU= ImageIO.read(ResourceMgr.class.getClassLoader().getResourceAsStream("images/GoodTank1.png"));goodTankL =ImageUtil.rotateImage(goodTankU,-90);goodTankR = ImageUtil.rotateImage(goodTankU,90);goodTankD =ImageUtil.rotateImage(goodTankU,180);badTankU= ImageIO.read(ResourceMgr.class.getClassLoader().getResourceAsStream("images/BadTank1.png"));badTankL =ImageUtil.rotateImage(badTankU,-90);badTankR = ImageUtil.rotateImage(badTankU,90);badTankD =ImageUtil.rotateImage(badTankU,180);bulletU = ImageIO.read(ResourceMgr.class.getClassLoader().getResourceAsStream("images/bulletU.png"));bulletL = ImageUtil.rotateImage(bulletU,-90);bulletR = ImageUtil.rotateImage(bulletU,90);bulletD = ImageUtil.rotateImage(bulletU,180);for(int i=0;i<16;i++){explodes[i] =ImageIO.read(ResourceMgr.class.getClassLoader().getResourceAsStream("images/e"+(i+1)+".gif"));}} catch (Exception e) {e.printStackTrace();}}
}

package com.zcw.tank;import java.awt.*;
import java.util.Random;/*** @ClassName : tank* @Description :* @Author : Zhaocunwei* @Date: 2020-07-20 12:03*/
public class Tank {int x, y;Dir dir = Dir.DOWN;private static final int SPEED = 5;private boolean moving = true;TankFrame tf = null;private boolean living = true;//创建分组，Group group = Group.BAD;private Random random = new Random();Rectangle rect = new Rectangle();//FourDirFireStrategy 大招FireStrategy fs = new DefaultFireStrategy();public static final int WIDTH = ResourceMgr.goodTankU.getWidth();public static final int HEIGHT = ResourceMgr.goodTankU.getHeight();public Tank(int x, int y, Dir dir, TankFrame tf, Group group) {this.x = x;this.y = y;this.dir = dir;this.tf = tf;this.group = group;rect.x = this.x;rect.y = this.y;rect.width = WIDTH;rect.height = HEIGHT;}public void paint(Graphics g) {if (!living) {tf.tanks.remove(this);}switch (dir) {case LEFT:g.drawImage(this.group == Group.GOOD ? ResourceMgr.goodTankL: ResourceMgr.badTankL, x, y, null);break;case UP:g.drawImage(this.group == Group.GOOD ? ResourceMgr.goodTankU: ResourceMgr.badTankU, x, y, null);break;case RIGHT:g.drawImage(this.group == Group.GOOD ? ResourceMgr.goodTankR: ResourceMgr.badTankR, x, y, null);break;case DOWN:g.drawImage(this.group == Group.GOOD ? ResourceMgr.goodTankD: ResourceMgr.badTankD, x, y, null);break;}move();}private void move() {if (!moving) {return;}switch (dir) {case LEFT:x -= SPEED;break;case UP:y -= SPEED;break;case RIGHT:x += SPEED;break;case DOWN:y += SPEED;break;}//敌人坦克打出子弹if (this.group == Group.BAD && random.nextInt(100) > 95) {this.fire();//创建随机方向randmoDir();}//边界检测boundsCheck();//需要更新 rect 对象rect.x = this.x;rect.y = this.y;}private void boundsCheck() {if(this.x < 2){x=2;}if(this.y <28){y =28;}if(this.x > TankFrame.GAME_WIDTH - Tank.WIDTH -2){x = TankFrame.GAME_WIDTH - Tank.WIDTH -2;}if(this.y > TankFrame.GAME_HEIGHT - Tank.HEIGHT -2){y = TankFrame.GAME_HEIGHT -Tank.HEIGHT - 2;}}public void randmoDir() {this.dir = Dir.values()[random.nextInt(4)];}public void fire() {fs.fire(this);}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 Dir getDir() {return dir;}public void setDir(Dir dir) {this.dir = dir;}public boolean isMoving() {return moving;}public void setMoving(boolean moving) {this.moving = moving;}public static int getWIDTH() {return WIDTH;}public static int getHEIGHT() {return HEIGHT;}public void die() {this.living = false;}public Group getGroup() {return group;}public void setGroup(Group group) {this.group = group;}
}

package com.zcw.tank;import java.awt.*;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.ArrayList;
import java.util.List;/*** @ClassName : TankFrame* @Description :* @Author : Zhaocunwei* @Date: 2020-07-20 19:46*/
public class TankFrame extends Frame {Tank myTank = new Tank(200,400,Dir.DOWN,this,Group.GOOD);public static final int GAME_WIDTH=1080,GAME_HEIGHT=960;List<Bullet> bullets = new ArrayList<>();List<Tank> tanks = new ArrayList<>();List<Explode> explodes = new ArrayList<>();public TankFrame(){setSize(GAME_WIDTH,GAME_HEIGHT);setResizable(false);setTitle("tank war");setVisible(true);//添加监听this.addKeyListener(new MyKeyListener());addWindowListener(new WindowAdapter() {@Overridepublic void windowClosing(WindowEvent e) {System.exit(0);}});}//解决闪烁问题Image offScreenImage =null;@Overridepublic void update(Graphics g) {if(offScreenImage ==null){offScreenImage = this.createImage(GAME_WIDTH,GAME_HEIGHT);}Graphics gOffScreen = offScreenImage.getGraphics();Color c = gOffScreen.getColor();gOffScreen.setColor(Color.BLACK);gOffScreen.fillRect(0,0,GAME_WIDTH,GAME_HEIGHT);gOffScreen.setColor(c);paint(gOffScreen);g.drawImage(offScreenImage,0,0,null);}/*** 当窗口打开时（重新绘制时），会自动调用这个方法* 系统自带的画笔：Graphics* @param g*/@Overridepublic void paint(Graphics g) {Color c = g.getColor();g.setColor(Color.WHITE);g.drawString("子弹数量："+bullets.size(),10,60);g.drawString("敌人的数量"+tanks.size(),10,80);g.drawString("爆炸的数量"+explodes.size(),10,100);g.setColor(c);myTank.paint(g);for(int i=0;i<bullets.size();i++){bullets.get(i).paint(g);}//画敌方坦克for(int i=0; i<tanks.size();i++){tanks.get(i).paint(g);}//判断子弹是否与坦克相撞for(int i =0;i<bullets.size();i++){for(int j=0;j<tanks.size();j++){bullets.get(i).collideWith(tanks.get(j));}}//画出爆炸for(int i=0;i<explodes.size();i++){explodes.get(i).paint(g);}}class MyKeyListener extends KeyAdapter{boolean bL = false;boolean bU = false;boolean bR =false;boolean bD = false;@Overridepublic void keyPressed(KeyEvent e) {int key = e.getKeyCode();switch (key){case KeyEvent.VK_LEFT:bL = true;break;case KeyEvent.VK_UP:bU=true;break;case KeyEvent.VK_RIGHT:bR = true;break;case KeyEvent.VK_DOWN:bD=true;break;default:break;}setMainTankDir();}@Overridepublic void keyReleased(KeyEvent e) {int key = e.getKeyCode();switch (key){case KeyEvent.VK_LEFT:bL = false;break;case KeyEvent.VK_UP:bU=false;break;case KeyEvent.VK_RIGHT:bR = false;break;case KeyEvent.VK_DOWN:bD=false;break;case KeyEvent.VK_ENTER :myTank.fire();break;default:break;}setMainTankDir();}private void setMainTankDir(){if(!bL && !bU && !bR && !bD){myTank.setMoving(false);}else{myTank.setMoving(true);if(bL){myTank.setDir(Dir.LEFT);}if(bU) {myTank.setDir(Dir.UP);}if(bR){myTank.setDir(Dir.RIGHT);}if(bD){myTank.setDir(Dir.DOWN);}}}}
}

package com.zcw.tank;/*** @ClassName : TankMain* @Description :* @Author : Zhaocunwei* @Date: 2020-07-20 12:53*/
public class TankMain {public static void main(String[] args) throws InterruptedException {TankFrame tf = new TankFrame();int initTankCount = Integer.parseInt((String)PropertyMgr.get("initTankCount"));//初始化地方坦克for(int i =0;i<initTankCount;i++){tf.tanks.add(new Tank(50 + i*80 ,200,Dir.DOWN,tf,Group.BAD));}new Thread(() -> new Audio("audio/war1.wav").loop()).start();while(true){Thread.sleep(50);tf.repaint();}}
}

效果图