坦克大战[源码] 你懂得

import java.awt.Color;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Image;
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;

public class TankClient extends Frame{
	public static final int GAMEWEIGHT = 800;
	public static final int GAMEHEIGHT = 600;
	Image offScreenImage = null;
	
	
	Tank myTank = new Tank(700, 50, true, this);
	
	List<Missile> missiles = new ArrayList<Missile>();
	List<Explode> explodes = new ArrayList<Explode>();
	List<Tank> tanks = new ArrayList<Tank>();
	Wall w1 = new Wall(300, 200, 20, 150, this);
	Wall w2 = new Wall(50, 500, 300, 20, this);
	Blood b = new Blood();
	
	private static final long serialVersionUID = 1L;
	 //主线程入口
	public static void main(String[] args) {
		TankClient tc = new TankClient();
		tc.launchFrame();
	}
	
	public void launchFrame() {
		setBounds(50, 50, GAMEWEIGHT, GAMEHEIGHT);
		setResizable(false);
		//用匿名类处理窗口关闭事件
		addWindowListener(new WindowAdapter() {
			public void windowClosing(WindowEvent e) {
				setVisible(false);
				System.exit(0);
			}
		});
		
		addKeyListener(new KeyMonitor());
		
		setTitle("TanKing .......");
		setBackground(Color.GRAY);
		setVisible(true);
		
		for(int i = 0; i < 10; i++) {
			tanks.add(new Tank(40 * (i + 1), 400, false, this, Tank.Direction.U));
		}
		
		new Thread(new PaintThread()).start();
		
	}
	
	public void paint(Graphics g) {
		g.drawString("missiles conut:" + missiles.size(), 10, 50);
		g.drawString("explodes count:" + explodes.size(), 10, 70);
		g.drawString("tanks count" + tanks.size(), 10, 90);
		g.drawString("MyTank life:" + myTank.getLife(), 10, 110);
		
		
		if(tanks.size() <= 0) {
			for(int i = 0; i < 5; i++) {
				tanks.add(new Tank(40 * (i + 1), 400, false, this, Tank.Direction.U));
			}
		}
		
		myTank.draw(g);
		myTank.eat(b);
		
		for(int i = 0; i < tanks.size(); i++) {
			Tank t = tanks.get(i);
			t.collidesWall(w1);
			t.collidesWall(w2);
			t.CollidesWithTanks(tanks);
			t.draw(g);
		}
		
		for(int i = 0; i < missiles.size(); i++) {
			Missile m = missiles.get(i);
			m.hitTanks(tanks);
			m.hitTank(myTank);
			m.hitWall(w1);
			m.hitWall(w2);
			m.draw(g);
		}
		
		for(int i = 0; i < explodes.size(); i++) {
			Explode e = explodes.get(i);
			e.draw(g);
		}
		
		w1.draw(g);
		w2.draw(g);
		b.draw(g);
		
	}
	
	public void update(Graphics g) {
		if(offScreenImage == null) {
			offScreenImage = 
				this.createImage(GAMEWEIGHT, GAMEHEIGHT);
		}
		Graphics gOffScreenImage = offScreenImage.getGraphics();
		
		Color c = gOffScreenImage.getColor();
		gOffScreenImage.setColor(Color.GRAY);
		gOffScreenImage.fillRect(0, 0, GAMEWEIGHT, GAMEHEIGHT);
		gOffScreenImage.setColor(c);
		
		paint(gOffScreenImage);
		g.drawImage(offScreenImage, 0, 0, null);
	}
	
	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 {
		public void keyPressed(KeyEvent e) {
			myTank.keyPressed(e);
		}
		
		public void keyReleased(KeyEvent e) {
			myTank.keyReleased(e);
		}
	}
	
}

import java.awt.Color;
import java.util.*;
import java.awt.Graphics;
import java.awt.Rectangle;
import java.awt.event.KeyEvent;


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;
	
	private static Random r = new Random();
	private BloodBar bb = new BloodBar();
	private int x, oldX;
	private int y, oldY;
	int step = r.nextInt(12) + 3;
	TankClient tc;
	boolean good;
	private int life = 100;
	
	private boolean live = true;
	public void setLife(int life) {
		this.life = life;
	}

	public int getLife() {
		return life;
	}

	public boolean isLive() {
		return live;
	}

	public void setLive(boolean live) {
		this.live = live;
	}

	public Tank(int x, int y, boolean good, TankClient tc, Direction dir) {
		this(x, y, good, tc);
		this.dir = dir;
	}
	
	public Tank(int x, int y, boolean good, TankClient tc) {
		this(x, y, good);
		this.tc = tc;
	}
	
	public Tank(int x, int y, boolean good) {
		this.x = x;
		this.y = y;
		this.oldX = x;
		this.oldY = y;
		this.good = good;
		
	}
	
	private boolean bL = false;
	private boolean bR = false;
	private boolean bU = false;
	private boolean bD = false;
	
	enum Direction {L, LU, U, RU, R, RD, D, LD, STOP};
	private Direction dir = Direction.STOP;
	private Direction ptDir = Direction.D;
	public void draw(Graphics g) {
		if(!live) {
			if(!good) {
				tc.tanks.remove(this);
			}
			return;
		}
		
		Color c = g.getColor();
		if(good) {
			g.setColor(Color.RED);
		} else {
			g.setColor(Color.YELLOW);
		}
		g.fillOval(x, y, WIDTH, HEIGHT);
		g.setColor(c);
		drawPt(g);
		if(good) {
			bb.draw(g);
		}
		
		move();
	}
	
	public void drawPt(Graphics g) {
		switch(ptDir) {
		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;
		}
	}
	
	public 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:
			y -= YSPEED;
			x += XSPEED;
			break;
		case R:
			x += XSPEED;
			break;
		case RD:
			x += XSPEED;
			y += YSPEED;
			break;
		case D:
			y += YSPEED;
			break;
		case LD:
			y += YSPEED;
			x -= XSPEED;
			break;
		case STOP:
			break;
		}
		
		if(dir != Direction.STOP) {
			ptDir = dir;
		}
		
		if(x < 0) x = 0;
		if(y < 24) y = 24;
		if(x + Tank.WIDTH > TankClient.GAMEWEIGHT) {
			x = TankClient.GAMEWEIGHT- Tank.WIDTH;
		}
		if(y + Tank.HEIGHT > TankClient.GAMEHEIGHT) {
			y = TankClient.GAMEHEIGHT - Tank.HEIGHT;
		}
		
		if(!good) {
			Direction[] dirs = Direction.values();
			
			if(step == 0) {
				step = r.nextInt(40) + 9;
				int rn = r.nextInt(dirs.length);
				dir = dirs[rn];
			}
			
			if(r.nextInt(40) > 36) {
				this.fire();
			}
				
			step --;
		}
		
		
	}
	
	public void keyPressed(KeyEvent e) {
		int key = e.getKeyCode();	
		switch(key) {
		case KeyEvent.VK_UP:
			bU = true;
			break;
		case KeyEvent.VK_DOWN:
			bD = true;
			break;
		case KeyEvent.VK_LEFT:
			bL = true;
			break;
		case KeyEvent.VK_RIGHT:
			bR = true;
			break;				
		}		
		setLocateDirection();
	}
	
	public void keyReleased(KeyEvent e) {
		int key = e.getKeyCode();	
		switch(key) {
		case KeyEvent.VK_UP:
			bU = false;
			break;
		case KeyEvent.VK_DOWN:
			bD = false;
			break;
		case KeyEvent.VK_LEFT:
			bL = false;
			break;
		case KeyEvent.VK_RIGHT:
			bR = false;
			break;	
		case KeyEvent.VK_CONTROL:
			fire();
			break;
		case KeyEvent.VK_A:
			superFire();
			break;
		case KeyEvent.VK_F2:
			if(!live) {
				this.live = true;
				this.life = 100;
			}
			break;
		}
		
		setLocateDirection();
	}
	
	public void setLocateDirection() {
		if(!bL && !bU && !bR && !bD) dir = Direction.STOP;
		else if(bL && !bU && !bR && !bD) dir = Direction.L;
		else if(!bL && bU && !bR && !bD) dir = Direction.U;
		else if(!bL && !bU && bR && !bD) dir = Direction.R;
		else if(!bL && !bU && !bR && bD) dir = Direction.D;
		else if(bL && bU && !bR && !bD) dir = Direction.LU;
		else if(bL && !bU && !bR && bD) dir = Direction.LD;
		else if(!bL && bU && bR && !bD) dir = Direction.RU;
		else if(!bL && !bU && bR && bD) dir = Direction.RD;
	}
	
	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 = new Missile(x, y, ptDir,tc, good);
		tc.missiles.add(m);
		return m;
	}
	
	public Rectangle getRect() {
		return new Rectangle(x, y, WIDTH, HEIGHT);
	}
	
	private void stay() {
		x = oldX;
		y = oldY;
	}
	
	public boolean collidesWall(Wall w) {
		if(this.live && this.getRect().intersects(w.getRect())) {
			this.stay();
			return true;
		}
		return false;
	}
	
	public boolean CollidesWithTanks(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;
	}
	
	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, dir,tc, good);
		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]));
		}
	}
	
	private class BloodBar {
		public void draw(Graphics g) {
			Color c = g.getColor();
			g.setColor(Color.GREEN);
			g.drawRect(x, y-10, WIDTH, 10);	
			int w = WIDTH * life / 100;
			g.fillRect(x, y-10, w, 10);
			g.setColor(c);
		}
	}
	
	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;
	}
}

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Rectangle;
import java.util.List;


public class Missile {
	public static final int XSPEED = 20;
	public static final int YSPEED = 20;
	public static final int WIDTH = 10;
	public static final int HEIGHT = 10;
	
	private boolean live = true;
	
	int x;
	int y;
	Tank.Direction dir;
	private TankClient tc;
	boolean good;
	public void setLive(boolean live) {
		this.live = live;
	}


	public boolean isLive() {
		return live;
	}


	public Missile(int x, int y, Tank.Direction dir) {
		this.x = x;
		this.y = y;
		this.dir = dir;
	}
	
	public Missile(int x, int y, Tank.Direction dir,TankClient tc) {
		this(x, y, dir);
		this.tc = tc;
	}
	
	public Missile(int x, int y, Tank.Direction dir,TankClient tc, boolean good) {
		this(x, y, dir, tc);
		this.good = good;
	}
	

	public void draw(Graphics g) {
		if(!live) {
			tc.missiles.remove(this);
			return;
		}
		
		
		Color c = g.getColor();
		g.setColor(Color.BLACK);
		g.fillOval(x, y, WIDTH, HEIGHT);
		g.setColor(c);
		
		move();
	}
	
	private void move() {
		
		switch(dir) {
		case L:
			x -= XSPEED;
			break;
		case LU:
			x -= XSPEED;
			y -= YSPEED;
			break;
		case U:
			y -= YSPEED;
			break;
		case RU:
			y -= YSPEED;
			x += XSPEED;
			break;
		case R:
			x += XSPEED;
			break;
		case RD:
			x += XSPEED;
			y += YSPEED;
			break;
		case D:
			y += YSPEED;
			break;
		case LD:
			y += YSPEED;
			x -= XSPEED;
			break;
		}
		
		if(x < 0 || y < 0 || x > TankClient.GAMEWEIGHT || y > TankClient.GAMEHEIGHT) {
			live = false;
		}
	}
	
	public Rectangle getRect() {
		return new Rectangle(x, y, WIDTH, HEIGHT);
	}
	
	public boolean hitTank(Tank t) {
		if(this.live && this.getRect().intersects(t.getRect()) && t.isLive() && this.good != t.good) {
			
			if(t.good) {
				t.setLife(t.getLife() - 20);
				if(t.getLife() <= 0) {
					t.setLive(false);
				} 
			} else {
				t.setLive(false);
			}
			
			
			this.live = false;
			
			Explode e = new Explode(x, y, tc);
			tc.explodes.add(e);
			
			
			return true;
		} 
		return false;
	}
	
	public boolean hitTanks(List<Tank> tanks) {
		for(int i = 0; i < tanks.size(); i++) {
			if(hitTank(tanks.get(i))) {
				
				return true;
			}
		}
		
		return false;
	}
	
	public boolean hitWall(Wall w) {
		if(this.live && this.getRect().intersects(w.getRect())) {
			this.live = false;
			return true;
		}
		return false;
	}
	
}

import java.awt.*;
public class Explode {
	int x;
	int y;
	private TankClient tc;
	public Explode(int x, int y, TankClient tc) {
		this.x = x;
		this.y = y;
		this.tc = tc;
	}
	
	private boolean live = true;
	int [] diameter = {
			4, 7 , 12, 23, 34, 12, 6
	};
	int step = 0;
	
	public void draw(Graphics g) {
		if(!live) {
			tc.explodes.remove(this);
			return;
		}
		
		if(step == diameter.length) {
			live = false;
			step = 0;
			return;
		}
		
		Color c = g.getColor();
		g.setColor(Color.ORANGE);
		g.fillOval(x , y, diameter[step], diameter[step]);
		g.setColor(c);
		step ++;
	}
}

import java.awt.*;



public class Wall {
	int x, y, w, h;
	TankClient tc;
	
	public Wall(int x, int y, int w, int h, TankClient tc) {
		this.x = x;
		this.y = y;
		this.w = w;
		this.h = h;
		this.tc = tc;
	}
	
	public void draw(Graphics g) {
		Color c = g.getColor();
		g.setColor(Color.BLACK);
		g.fillRect(x, y, w, h);
		g.setColor(c);
	}
	
	public Rectangle getRect() {
		return new Rectangle(x, y, w, h);
	}
	
}

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Rectangle;


public class Blood {
	int x, y, w, h;
	TankClient tc;
	int step = 0;
	private boolean live = true;
	
	public void setLive(boolean live) {
		this.live = live;
	}

	public boolean isLive() {
		return live;
	}

	private int [][] pos = {
			{70,70},
			{120,70},
			{170,70},
			{220,70},
			{270,70},
			{320,70},
			{370,7}
	};
	
	public Blood() {
		x = pos[0][0];
		y = pos[0][1];
		w = h = 15;
	}
	
	public void draw(Graphics g) {
		
		if(!live) {
			return;
		}
		
		Color c = g.getColor();
		g.setColor(Color.MAGENTA);
		g.fillRect(x, y, w, h);
		g.setColor(c);
		
		move();
	}
	
	private void move() {
		step ++;
		
		if(step == pos.length) {
			step = 0;
		}
		
		x = pos[step][0];
		y = pos[step][1];
		
	}
	
	public Rectangle getRect() {
		return new Rectangle(x, y, w, h);
	}
}

----------------------------------------------------------------------华丽的分割线----------------------------------------------------------------------------------------------------------------------------------------------

---------------------------- //美化版-------

import java.awt.Color;
import java.util.*;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Rectangle;
import java.awt.Toolkit;
import java.awt.event.KeyEvent;


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;
	
	private static Random r = new Random();
	private BloodBar bb = new BloodBar();
	private int x, oldX;
	private int y, oldY;
	int step = r.nextInt(12) + 3;
	TankClient tc;
	boolean good;
	private int life = 100;
	
	private static Toolkit tk = Toolkit.getDefaultToolkit();
	private static Image [] imgs = null;
	private static Map<String, Image> img = new HashMap<String, Image>();
	static {
		imgs = new Image[] {
				tk.getImage(Tank.class.getClassLoader().getResource("images/tankL.gif")),
				tk.getImage(Tank.class.getClassLoader().getResource("images/tankLU.gif")),
				tk.getImage(Tank.class.getClassLoader().getResource("images/tankU.gif")),
				tk.getImage(Tank.class.getClassLoader().getResource("images/tankRU.gif")),
				tk.getImage(Tank.class.getClassLoader().getResource("images/tankR.gif")),
				tk.getImage(Tank.class.getClassLoader().getResource("images/tankRD.gif")),
				tk.getImage(Tank.class.getClassLoader().getResource("images/tankD.gif")),
				tk.getImage(Tank.class.getClassLoader().getResource("images/tankLD.gif"))
			};
		
		img.put("L", imgs[0]);
		img.put("LU", imgs[1]);
		img.put("U", imgs[2]);
		img.put("RU", imgs[3]);
		img.put("R", imgs[4]);
		img.put("RD", imgs[5]);
		img.put("D", imgs[6]);
		img.put("LD", imgs[7]);
	}
	
	
	private boolean live = true;
	public void setLife(int life) {
		this.life = life;
	}

	public int getLife() {
		return life;
	}

	public boolean isLive() {
		return live;
	}

	public void setLive(boolean live) {
		this.live = live;
	}

	public Tank(int x, int y, boolean good, TankClient tc, Direction dir) {
		this(x, y, good, tc);
		this.dir = dir;
	}
	
	public Tank(int x, int y, boolean good, TankClient tc) {
		this(x, y, good);
		this.tc = tc;
	}
	
	public Tank(int x, int y, boolean good) {
		this.x = x;
		this.y = y;
		this.oldX = x;
		this.oldY = y;
		this.good = good;
		
	}
	
	private boolean bL = false;
	private boolean bR = false;
	private boolean bU = false;
	private boolean bD = false;
	
	enum Direction {L, LU, U, RU, R, RD, D, LD, STOP};
	private Direction dir = Direction.STOP;
	private Direction ptDir = Direction.D;
	public void draw(Graphics g) {
		if(!live) {
			if(!good) {
				tc.tanks.remove(this);
			}
			return;
		}

		drawPt(g);
		if(good) {
			bb.draw(g);
		}
		
		move();
	}
	
	public void drawPt(Graphics g) {
		switch(ptDir) {
		case L:
			g.drawImage(img.get("L"), x, y, null);
			break;
		case LU:
			g.drawImage(img.get("LU"), x, y, null);
			break;
		case U:
			g.drawImage(img.get("U"), x, y, null);
			break;
		case RU:
			g.drawImage(img.get("RU"), x, y, null);
			break;
		case R:
			g.drawImage(img.get("R"), x, y, null);
			break;
		case RD:
			g.drawImage(img.get("RD"), x, y, null);
			break;
		case D:
			g.drawImage(img.get("D"), x, y, null);
			break;
		case LD:
			g.drawImage(img.get("LD"), x, y, null);
			break;
		}
	}
	
	public 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:
			y -= YSPEED;
			x += XSPEED;
			break;
		case R:
			x += XSPEED;
			break;
		case RD:
			x += XSPEED;
			y += YSPEED;
			break;
		case D:
			y += YSPEED;
			break;
		case LD:
			y += YSPEED;
			x -= XSPEED;
			break;
		case STOP:
			break;
		}
		
		if(dir != Direction.STOP) {
			ptDir = dir;
		}
		
		if(x < 0) x = 0;
		if(y < 24) y = 24;
		if(x + Tank.WIDTH > TankClient.GAMEWEIGHT) {
			x = TankClient.GAMEWEIGHT- Tank.WIDTH;
		}
		if(y + Tank.HEIGHT > TankClient.GAMEHEIGHT) {
			y = TankClient.GAMEHEIGHT - Tank.HEIGHT;
		}
		
		if(!good) {
			Direction[] dirs = Direction.values();
			
			if(step == 0) {
				step = r.nextInt(40) + 9;
				int rn = r.nextInt(dirs.length);
				dir = dirs[rn];
			}
			
			if(r.nextInt(40) > 36) {
				this.fire();
			}
				
			step --;
		}
		
		
	}
	
	public void keyPressed(KeyEvent e) {
		int key = e.getKeyCode();	
		switch(key) {
		case KeyEvent.VK_UP:
			bU = true;
			break;
		case KeyEvent.VK_DOWN:
			bD = true;
			break;
		case KeyEvent.VK_LEFT:
			bL = true;
			break;
		case KeyEvent.VK_RIGHT:
			bR = true;
			break;				
		}		
		setLocateDirection();
	}
	
	public void keyReleased(KeyEvent e) {
		int key = e.getKeyCode();	
		switch(key) {
		case KeyEvent.VK_UP:
			bU = false;
			break;
		case KeyEvent.VK_DOWN:
			bD = false;
			break;
		case KeyEvent.VK_LEFT:
			bL = false;
			break;
		case KeyEvent.VK_RIGHT:
			bR = false;
			break;	
		case KeyEvent.VK_CONTROL:
			fire();
			break;
		case KeyEvent.VK_A:
			superFire();
			break;
		case KeyEvent.VK_F2:
			if(!live) {
				this.live = true;
				this.life = 100;
			}
			break;
		}
		
		setLocateDirection();
	}
	
	public void setLocateDirection() {
		if(!bL && !bU && !bR && !bD) dir = Direction.STOP;
		else if(bL && !bU && !bR && !bD) dir = Direction.L;
		else if(!bL && bU && !bR && !bD) dir = Direction.U;
		else if(!bL && !bU && bR && !bD) dir = Direction.R;
		else if(!bL && !bU && !bR && bD) dir = Direction.D;
		else if(bL && bU && !bR && !bD) dir = Direction.LU;
		else if(bL && !bU && !bR && bD) dir = Direction.LD;
		else if(!bL && bU && bR && !bD) dir = Direction.RU;
		else if(!bL && !bU && bR && bD) dir = Direction.RD;
	}
	
	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 = new Missile(x, y, ptDir,tc, good);
		tc.missiles.add(m);
		return m;
	}
	
	public Rectangle getRect() {
		return new Rectangle(x, y, WIDTH, HEIGHT);
	}
	
	private void stay() {
		x = oldX;
		y = oldY;
	}
	
	public boolean collidesWall(Wall w) {
		if(this.live && this.getRect().intersects(w.getRect())) {
			this.stay();
			return true;
		}
		return false;
	}
	
	public boolean CollidesWithTanks(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;
	}
	
	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, dir,tc, good);
		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]));
		}
	}
	
	private class BloodBar {
		public void draw(Graphics g) {
			Color c = g.getColor();
			g.setColor(Color.GREEN);
			g.drawRect(x, y-10, WIDTH, 10);	
			int w = WIDTH * life / 100;
			g.fillRect(x, y-10, w, 10);
			g.setColor(c);
		}
	}
	
	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;
	}
}

import java.awt.Graphics;
import java.awt.Image;
import java.awt.Toolkit;
public class Explode {
	int x;
	int y;
	
	private TankClient tc;
	public Explode(int x, int y, TankClient tc) {
		this.x = x;
		this.y = y;
		this.tc = tc;
	}
	
	private boolean live = true;
	private static boolean init = false;
	private static Toolkit tk = Toolkit.getDefaultToolkit();
	private static Image [] imgs = {
		tk.getImage(Explode.class.getClassLoader().getResource("images/0.gif")),
		tk.getImage(Explode.class.getClassLoader().getResource("images/1.gif")),
		tk.getImage(Explode.class.getClassLoader().getResource("images/2.gif")),
		tk.getImage(Explode.class.getClassLoader().getResource("images/3.gif")),
		tk.getImage(Explode.class.getClassLoader().getResource("images/4.gif")),
		tk.getImage(Explode.class.getClassLoader().getResource("images/5.gif")),
		tk.getImage(Explode.class.getClassLoader().getResource("images/6.gif")),
		tk.getImage(Explode.class.getClassLoader().getResource("images/7.gif")),
		tk.getImage(Explode.class.getClassLoader().getResource("images/8.gif")),
		tk.getImage(Explode.class.getClassLoader().getResource("images/9.gif")),
		tk.getImage(Explode.class.getClassLoader().getResource("images/10.gif"))
	};
	
	int step = 0;
	
	public void draw(Graphics g) {
		
		if(!init) {
			for (int j = 0; j < imgs.length; j++) {
				g.drawImage(imgs[j], -100, -100, null);
			}
			init = true;
		}
		
		if(!live) {
			tc.explodes.remove(this);
			return;
		}
		
		if(step == imgs.length) {
			live = false;
			step = 0;
			return;
		}
		
		g.drawImage(imgs[step], x, y, null);
		step ++;
	}
}

import java.awt.Graphics;
import java.awt.Image;
import java.awt.Rectangle;
import java.awt.Toolkit;
import java.util.HashMap;
import java.util.List;
import java.util.Map;


public class Missile {
	public static final int XSPEED = 20;
	public static final int YSPEED = 20;
	public static final int WIDTH = 10;
	public static final int HEIGHT = 10;
	
	private boolean live = true;
	
	int x;
	int y;
	Tank.Direction dir;
	private TankClient tc;
	boolean good;
	
	private static Toolkit tk = Toolkit.getDefaultToolkit();
	private static Image [] imgs = null;
	private static Map<String, Image> img = new HashMap<String, Image>();
	static {
		imgs = new Image[] {
				tk.getImage(Missile.class.getClassLoader().getResource("images/missileL.gif")),
				tk.getImage(Missile.class.getClassLoader().getResource("images/missileLU.gif")),
				tk.getImage(Missile.class.getClassLoader().getResource("images/missileU.gif")),
				tk.getImage(Missile.class.getClassLoader().getResource("images/missileRU.gif")),
				tk.getImage(Missile.class.getClassLoader().getResource("images/missileR.gif")),
				tk.getImage(Missile.class.getClassLoader().getResource("images/missileRD.gif")),
				tk.getImage(Missile.class.getClassLoader().getResource("images/missileD.gif")),
				tk.getImage(Missile.class.getClassLoader().getResource("images/missileLD.gif"))
			};
		
		img.put("L", imgs[0]);
		img.put("LU", imgs[1]);
		img.put("U", imgs[2]);
		img.put("RU", imgs[3]);
		img.put("R", imgs[4]);
		img.put("RD", imgs[5]);
		img.put("D", imgs[6]);
		img.put("LD", imgs[7]);
	}
	
	public void setLive(boolean live) {
		this.live = live;
	}


	public boolean isLive() {
		return live;
	}


	public Missile(int x, int y, Tank.Direction dir) {
		this.x = x;
		this.y = y;
		this.dir = dir;
	}
	
	public Missile(int x, int y, Tank.Direction dir,TankClient tc) {
		this(x, y, dir);
		this.tc = tc;
	}
	
	public Missile(int x, int y, Tank.Direction dir,TankClient tc, boolean good) {
		this(x, y, dir, tc);
		this.good = good;
	}
	

	public void draw(Graphics g) {
		if(!live) {
			tc.missiles.remove(this);
			return;
		}
		
		switch(dir) {
		case L:
			g.drawImage(img.get("L"), x, y, null);
			break;
		case LU:
			g.drawImage(img.get("LU"), x, y, null);
			break;
		case U:
			g.drawImage(img.get("U"), x, y, null);
			break;
		case RU:
			g.drawImage(img.get("RU"), x, y, null);
			break;
		case R:
			g.drawImage(img.get("R"), x, y, null);
			break;
		case RD:
			g.drawImage(img.get("RD"), x, y, null);
			break;
		case D:
			g.drawImage(img.get("D"), x, y, null);
			break;
		case LD:
			g.drawImage(img.get("LD"), x, y, null);
			break;
		}
		
		
		move();
	}
	
	private void move() {
		
		switch(dir) {
		case L:
			x -= XSPEED;
			break;
		case LU:
			x -= XSPEED;
			y -= YSPEED;
			break;
		case U:
			y -= YSPEED;
			break;
		case RU:
			y -= YSPEED;
			x += XSPEED;
			break;
		case R:
			x += XSPEED;
			break;
		case RD:
			x += XSPEED;
			y += YSPEED;
			break;
		case D:
			y += YSPEED;
			break;
		case LD:
			y += YSPEED;
			x -= XSPEED;
			break;
		}
		
		if(x < 0 || y < 0 || x > TankClient.GAMEWEIGHT || y > TankClient.GAMEHEIGHT) {
			live = false;
		}
	}
	
	public Rectangle getRect() {
		return new Rectangle(x, y, WIDTH, HEIGHT);
	}
	
	public boolean hitTank(Tank t) {
		if(this.live && this.getRect().intersects(t.getRect()) && t.isLive() && this.good != t.good) {
			
			if(t.good) {
				t.setLife(t.getLife() - 20);
				if(t.getLife() <= 0) {
					t.setLive(false);
				} 
			} else {
				t.setLive(false);
			}
			
			
			this.live = false;
			
			Explode e = new Explode(x, y, tc);
			tc.explodes.add(e);
			
			
			return true;
		} 
		return false;
	}
	
	public boolean hitTanks(List<Tank> tanks) {
		for(int i = 0; i < tanks.size(); i++) {
			if(hitTank(tanks.get(i))) {
				
				return true;
			}
		}
		
		return false;
	}
	
	public boolean hitWall(Wall w) {
		if(this.live && this.getRect().intersects(w.getRect())) {
			this.live = false;
			return true;
		}
		return false;
	}
	
}

---------------------------------------------------华丽的分割线----------------------------------------------------------------------------------------------------------------------

----------------------------//加配置文件的方法

配置文件名：tank.properties

initTankCount=10
reProduceTankCount=15

--------------------------------使用局部配置

//加配置文件 ；
		Properties props = new Properties();
		try {
			props.load(this.getClass().getClassLoader().getResourceAsStream("config/tank.properties"));
		} catch (IOException e1) {
			e1.printStackTrace();
		}
		
		int initTankCount = Integer.parseInt(props.getProperty("initTankCount"));
		
		for(int i = 0; i < initTankCount; i++) {
			tanks.add(new Tank(40 * (i + 1), 400, false, this, Tank.Direction.U));
		}
		

------------------使用全局配置

import java.io.IOException;
import java.util.Properties;


public class PropertyMgr {
	static Properties props = new Properties();
	
	static {
		try {
			props.load(PropertyMgr.class.getClass().getClassLoader().getResourceAsStream("config/tank.properties"));
		} catch (IOException e1) {
			e1.printStackTrace();
		}
	}
	private PropertyMgr(){};
	
	public static String getProperty(String key) {
		return props.getProperty(key);
	}
}

for(int i = 0; i < Integer.parseInt(PropertyMgr.getProperty("initTankCount")); i++) {
			tanks.add(new Tank(40 * (i + 1), 400, false, this, Tank.Direction.U));
		}