import java.awt.*;
import java.awt.event.*;
import java.util.*;
public class Tank {public static final int XSPEED = 5;public static final int YSPEED = 5;public static final int WIDTH = 30;public static final int HEIGHT = 30;TankClient tc;private int x, y;//坦克的坐标，即位置private int oldX, oldY;//用来保存上一步的坐标，撞墙的时候调整方向用的private boolean bL=false, bU=false, bR=false, bD = false;//方向的标志变量enum Direction {L, LU, U, RU, R, RD, D, LD, STOP};//方向的枚举private Direction dir = Direction.STOP;//我方坦克，初始方向private Direction ptDir = Direction.D;//敌方坦克初始方向，向下private int step = r.nextInt(12) + 3;private boolean isSuper=false;public boolean isSuper(){return isSuper;}public void setSuper(boolean isSuper){this.isSuper = isSuper;}private static Random r = new Random();//随机数产生器private boolean good;//区分好坏的变量private boolean boss;public boolean isBoss(){return boss;}public boolean isGood(){return good;}public void setGood(boolean good){this.good = good;}private BloodBar bb=new BloodBar();//血条//坦克生命值的变量private int life=100; public int getLife(){return life;}public void setLife(int life){this.life = life;}//坦克生死的变量private boolean live=true;public boolean isLive(){return live;}public void setLive(boolean live){this.live = live;}//坦克的构造方法public Tank(int x, int y,boolean good) {this.x = x;this.y = y;this.oldX = x;this.oldY = y;this.good=good;}public Tank(int x, int y,boolean good,Direction dir, TankClient tc) {this(x, y,good);this.dir=dir;this.tc = tc;}public Tank(int x, int y,boolean good,boolean boss, Direction dir, TankClient tc) {this(x, y,good);this.dir=dir;this.boss=boss;this.tc = tc;}//画坦克的方法public void draw(Graphics g) {if(!live) return;//Tank死了就不在重画了Color c = g.getColor();if(good)//通过好坏设置颜色{g.setColor(Color.CYAN);}else if(boss){g.setColor(Color.RED);}    else {g.setColor(Color.BLUE);}g.fillOval(x, y, WIDTH, HEIGHT);g.setColor(c);if(good) bb.draw(g);//我方坦克有血条if(boss) bb.draw(g);//boss有血条switch(ptDir) {//通过方位判断，画炮筒位置case L:g.drawLine(x + Tank.WIDTH/2, y + Tank.HEIGHT/2, x, y + Tank.HEIGHT/2);break;case LU:g.drawLine(x + Tank.WIDTH/2, y + Tank.HEIGHT/2, x, y);break;case U:g.drawLine(x + Tank.WIDTH/2, y + Tank.HEIGHT/2, x + Tank.WIDTH/2, y);break;case RU:g.drawLine(x + Tank.WIDTH/2, y + Tank.HEIGHT/2, x + Tank.WIDTH, y);break;case R:g.drawLine(x + Tank.WIDTH/2, y + Tank.HEIGHT/2, x + Tank.WIDTH, y + Tank.HEIGHT/2);break;case RD:g.drawLine(x + Tank.WIDTH/2, y + Tank.HEIGHT/2, x + Tank.WIDTH, y + Tank.HEIGHT);break;case D:g.drawLine(x + Tank.WIDTH/2, y + Tank.HEIGHT/2, x + Tank.WIDTH/2, y + Tank.HEIGHT);break;case LD:g.drawLine(x + Tank.WIDTH/2, y + Tank.HEIGHT/2, x, y + Tank.HEIGHT);break;}move();//重画时，进行移动}//坦克的移动方法，在重画的时候，通过方向定位来进行移动void move() {this.oldX = x;this.oldY = y;switch(dir) {case L:x -= XSPEED;break;case LU:x -= XSPEED;y -= YSPEED;break;case U:y -= YSPEED;break;case RU:x += XSPEED;y -= YSPEED;break;case R:x += XSPEED;break;case RD:x += XSPEED;y += YSPEED;break;case D:y += YSPEED;break;case LD:x -= XSPEED;y += YSPEED;break;case STOP:break;}if(this.dir != Direction.STOP) {//炮筒位置的定位，和行动方向一致this.ptDir = this.dir;}//判断坦克是否出界，遇到边界则停止if(x < 0) x = 0;if(y < 30) y = 30;if(x + Tank.WIDTH > TankClient.GAME_WIDTH) x = TankClient.GAME_WIDTH - Tank.WIDTH;if(y + Tank.HEIGHT > TankClient.GAME_HEIGHT) y = TankClient.GAME_HEIGHT - Tank.HEIGHT;//坏蛋坦克的随机移动，以及发子弹的时间if(!good&&!boss) {Direction[] dirs = Direction.values();if(step == 0) {step = r.nextInt(12) + 3;int rn = r.nextInt(dirs.length);dir = dirs[rn];}          step --;            if(r.nextInt(40) > 38) this.fire();}//boss坦克的攻击方法if(!good&&boss){Direction[] dirs = Direction.values();if(step == 0) {step = r.nextInt(12) + 3;int rn = r.nextInt(dirs.length);dir = dirs[rn];}   step --;if(r.nextInt(40) > 20)this.fire();}}//按下键时进行设置键位标志，用于方向定位判断public void keyPressed(KeyEvent e) {int key = e.getKeyCode();switch(key) {case KeyEvent.VK_CAPS_LOCK:this.setSuper(!this.isSuper());case KeyEvent.VK_F2 :if(!this.live) {this.live = true;this.life = 100;}case KeyEvent.VK_CONTROL:fire();break;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;}locateDirection();//每次按键后就判断方向}//Tank的方向定位，通过按键后设置的标志进行判断void locateDirection() {if(bL && !bU && !bR && !bD) dir = Direction.L;else if(bL && bU && !bR && !bD) dir = Direction.LU;else if(!bL && bU && !bR && !bD) dir = Direction.U;else if(!bL && bU && bR && !bD) dir = Direction.RU;else if(!bL && !bU && bR && !bD) dir = Direction.R;else if(!bL && !bU && bR && bD) dir = Direction.RD;else if(!bL && !bU && !bR && bD) dir = Direction.D;else if(bL && !bU && !bR && bD) dir = Direction.LD;else if(!bL && !bU && !bR && !bD) dir = Direction.STOP;}//方向键抬起来时的，恢复键位标志，也进行方向判断public 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_A :superFire();break;}locateDirection();        }//发出一发子弹的方法，向missiles里面添加子弹public Missile fire() {if(!live) return null;int x = this.x + Tank.WIDTH/2 - Missile.WIDTH/2;int y = this.y + Tank.HEIGHT/2 - Missile.HEIGHT/2;Missile m;if(good&&this.isSuper())//判断是不是超级炮弹{m = new Missile(x, y,good, ptDir,this.tc,true);}else {m = new Missile(x, y,good, ptDir,this.tc);}tc.missiles.add(m);return m;}//SuperFire向每个方向发子弹的方法public Missile fire(Direction Dir) {if(!live) return null;int x = this.x + Tank.WIDTH/2 - Missile.WIDTH/2;int y = this.y + Tank.HEIGHT/2 - Missile.HEIGHT/2;Missile m = new Missile(x, y,good, Dir,this.tc);tc.missiles.add(m);return m;}private void superFire(){Direction[] dirs = Direction.values();for(int i=0;i<8;i++){//tc.missiles.add(fire(dirs[i]));fire(dirs[i]);}}//判断相撞的方法所需的public Rectangle getRect() {return new Rectangle(x, y, WIDTH, HEIGHT);}//与坦克和墙相撞时停下来的方法private void stay() {x = oldX;y = oldY;}//判断坦克是否与墙相撞的方法public boolean collidesWithWall(Wall w) {if(this.live && this.getRect().intersects(w.getRect())) {this.stay();return true;}return false;}//判断坦克是否与坦克相撞的方法public boolean collidesWithTanks(java.util.List<Tank> tanks) {for(int i=0; i<tanks.size(); i++) {Tank t = tanks.get(i);if(this != t) {if(this.live && t.isLive() && this.getRect().intersects(t.getRect())) {this.stay();t.stay();return true;}}}return false;}//血条的内部类private class BloodBar {public void draw(Graphics g) {Color c = g.getColor();g.setColor(Color.orange);g.drawRect(x, y-10, WIDTH, 10);int w = WIDTH * life/100 ;g.fillRect(x, y-10, w, 10);g.setColor(c);}}//吃血块的方法public boolean eat(Blood b) {if(this.live && b.isLive() && this.getRect().intersects(b.getRect())) {this.life = 100;b.setLive(false);return true;}return false;}}

坦克类内部有很多的操作方法，还有一个血条。

子弹类

import java.awt.*;
import java.util.List;
public class Missile {public static final int XSPEED = 10;//子弹速度的变量public static final int YSPEED = 10;public static  int WIDTH = 10;//子弹大小public static  int HEIGHT = 10;int x, y;private TankClient tc;Tank.Direction dir;//方向变量private boolean isSuper;private boolean live = true;//子弹的生死变量public boolean isLive() {return live;}private boolean good;//坦克的好坏之分变量public boolean isGood(){return good;}//Missile的两个构造方法public Missile(int x, int y, Tank.Direction dir) {this.x = x;this.y = y;this.dir = dir;}public Missile(int x, int y,boolean good, Tank.Direction dir, TankClient tc) {this(x, y, dir);this.tc = tc;this.good=good;}public Missile(int x, int y,boolean good, Tank.Direction dir, TankClient tc,boolean isSuper) {this(x, y, dir);this.tc = tc;this.isSuper=isSuper;this.good=good;}//画子弹的方法public void draw(Graphics g) {if(!live) {tc.missiles.remove(this);return;}Color c = g.getColor();if(good&&isSuper)//是超级炮弹就变大{g.setColor(Color.YELLOW);g.fillOval(x-5, y-5, 20, 20);}else if(good&&!isSuper) {g.setColor(Color.YELLOW);g.fillOval(x, y, WIDTH, HEIGHT);}else {g.setColor(Color.RED);g.fillOval(x, y, WIDTH, HEIGHT);}g.setColor(c);move();//画子弹的时候就要移动}//子弹的移动方法，与坦克方位有关private void move() {switch(dir) {//通过方位判断速度case L:x -= XSPEED;break;case LU:x -= XSPEED;y -= YSPEED;break;case U:y -= YSPEED;break;case RU:x += XSPEED;y -= YSPEED;break;case R:x += XSPEED;break;case RD:x += XSPEED;y += YSPEED;break;case D:y += YSPEED;break;case LD:x -= XSPEED;y += YSPEED;break;case STOP:break;}//子弹越界了就要死if(x < 0 || y < 0 || x > TankClient.GAME_WIDTH || y > TankClient.GAME_HEIGHT) {live = false;tc.missiles.remove(this);}}public Rectangle getRect() {return new Rectangle(x, y, WIDTH, HEIGHT);}//子弹与子弹相撞的方法，且子弹分好坏public boolean hitMissile(Missile m) {if(this.live && this.getRect().intersects(m.getRect()) && m.isLive() && this.good !=m.isGood() ){this.live=false;m.live=false;return true;}return false;}public boolean hitMissiles(List<Missile> missiles) {for(int i=0; i<missiles.size(); i++) {if(hitMissile(missiles.get(i))) {//调用了hitMissile方法missiles.remove(missiles.get(i));return true;}}return false;}public boolean hitTank(Tank t) {if(this.live && this.getRect().intersects(t.getRect()) && t.isLive() && this.good !=t.isGood() ){if(t.isGood())//自己被击中减血{t.setLife(t.getLife()-20);if(t.getLife()<=0)t.setLive(false);}else if(t.isBoss())//BOSS被击中{if(this.isSuper)//被超级炮弹击中{t.setLife(t.getLife()-33);if(t.getLife()<=0)t.setLive(false);}else {       t.setLife(t.getLife()-5);if(t.getLife()<=0)t.setLive(false);}}else//坏人直接死t.setLive(false);      //t.setLive(false);this.live = false;Explode e = new Explode(x, y, tc);tc.explodes.add(e);return true;}return false;}//子弹与坦克相撞，且子弹分好坏（打敌人坦克的方法）public boolean hitTanks(List<Tank> tanks) {for(int i=0; i<tanks.size(); i++) {if(hitTank(tanks.get(i))) {//调用了hitTank方法tanks.remove(tanks.get(i));return true;}}return false;}//子弹与墙相撞的方法public boolean hitWall(Wall w) {if(this.live && this.getRect().intersects(w.getRect())) {this.live = false;return true;}return false;}
}

import java.awt.*;
import java.awt.event.*;
import java.util.List;
import java.util.ArrayList;
import org.omg.CORBA.PUBLIC_MEMBER;
public class TankClient extends Frame{public static  int GAME_WIDTH = 800;public static int GAME_HEIGHT = 600;Tank myTank = new Tank(200, 300,true,Tank.Direction.STOP, this);Tank BossTank = new Tank(60, 50,false,true,Tank.Direction.D,this);List<Missile> missiles=new ArrayList<Missile>();//装子弹的容器List<Explode> explodes = new ArrayList<Explode>();//装爆炸的容器List<Tank> tanks = new ArrayList<Tank>();//装敌方坦克的容器Blood b = new Blood();//实例化一个血块//实例化两个墙Wall w1=new Wall(300, 200, 20,150, this);Wall w2=new Wall(200, 100, 20,150, this);//双缓冲技术，消除频闪Image offScreenImage = null;public 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.gray);gOffScreen.fillRect(0, 0, GAME_WIDTH, GAME_HEIGHT);gOffScreen.setColor(c);paint(gOffScreen);g.drawImage(offScreenImage, 0, 0, null);}public void paint(Graphics g)//会自动调用这个方法{  g.drawString("tanks    count:" + tanks.size(), 10, 35);g.drawString("explodes count:" + explodes.size(), 10, 50);g.drawString("missiles count:" + missiles.size(), 10, 65);g.drawString("Tank     life:" + myTank.getLife(), 10, 80);if(tanks.size() <= 0) {for(int i=0; i<5; i++) {tanks.add(new Tank(50 + 40*(i+1), 50, false, Tank.Direction.D, this));}}//把容器里面的子弹都画出来for(int i=0;i<missiles.size();i++){Missile m=missiles.get(i);m.hitTanks(tanks);//添加子弹打坦克的方法m.hitTank(myTank);m.hitTank(BossTank);m.hitWall(w1);        m.hitWall(w2);m.hitMissiles(missiles);//调用子弹撞子弹方法m.draw(g);}//把容器里面的爆炸全部画出来for(int i=0; i<explodes.size(); i++) {Explode e = explodes.get(i);e.draw(g);//e.ExplodehitTanks(tanks);//e.ExplodehitTank(BossTank);}//把容器里面的坦克全部画出来for(int i=0; i<tanks.size(); i++) {Tank t = tanks.get(i);t.collidesWithWall(w1);t.collidesWithWall(w2);t.collidesWithTanks(tanks);t.draw(g);}b.draw(g);//血块画出来BossTank.draw(g);BossTank.collidesWithWall(w1);BossTank.collidesWithWall(w2);BossTank.collidesWithTanks(tanks);//我方坦克画出来并添加方法myTank.draw(g);myTank.eat(b);       myTank.collidesWithWall(w1);myTank.collidesWithWall(w2);//画出墙来w1.draw(g);w2.draw(g);}//初始化游戏窗口的方法public void lauchFrame(){//初始化坦克，添加进容器for(int i=0;i<10;i++){tanks.add(new Tank(50+40*(i+1),50,false,Tank.Direction.D,this));}this.setLocation(300, 100);this.setSize(GAME_WIDTH,GAME_HEIGHT);this.setTitle("zz TankWar");this.addWindowListener(new WindowAdapter(){public void windowClosing(WindowEvent e){System.exit(0);}});this.setBackground(Color.GREEN);this.setResizable(false);this.addKeyListener(new KeyMonitor());this.setVisible(true);new Thread(new PaintThread()).start();}private class PaintThread implements Runnable{public void run(){while(true){repaint();try{Thread.sleep(50);}catch(InterruptedException e){e.printStackTrace();}}}}private class KeyMonitor extends KeyAdapter {//键盘监听public void keyReleased(KeyEvent e){myTank.keyReleased(e);}public void keyPressed(KeyEvent e) {myTank.keyPressed(e);}}public static void main(String[] args) {TankClient t=new TankClient();t.lauchFrame();}}

总结