tank.java

小坦克项目。。比较经典。。大家有小项目拿出来下分享啊。。。需求这方面材料

import java.awt.*;
import java.awt.event.*;
import java.util.*;

public class Tank {
	public static final int XSPEED = 3;
	public static final int YSPEED = 3;
	public static final int WIDTH = 30;
	public static final int HEIGHT = 30;
	private int x,y;
	private boolean bL = false,bU = false,bR = false,bD = false;
	
	private boolean live = true;
	private boolean good;
	
	TankClient tc;
	
	private static Random r = new Random();
	private int step = r.nextInt(15) + 3;	//小于15随机数，为不使step为0，所以在后面加了3
	
	private Dir dir = Dir.STOP;
	private Dir ptdir = Dir.D;
	
	public Tank(int x, int y, boolean good) {
		this.x = x;
		this.y = y;
		this.good = good;
	}
	
	public Tank(int x, int y, boolean good, Dir dir,TankClient tc) {
		this(x,y,good);
		this.tc = tc;
		this.dir = dir;
	
	}
	
	public void draw(Graphics g) {
		if(!live) {
			if(!good) {
				tc.enemytanks.remove(this);
			}
			return;
		}
		
		Color c = g.getColor();
		if(good) 
		g.setColor(Color.pink);
		else g.setColor(Color.cyan);
		g.fillOval(x, y,WIDTH, HEIGHT);
		g.setColor(c);
		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;
		}
		
		move();
	}
	
	void move() {
		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 != Dir.STOP) {
			this.ptdir = this.dir;
		}
		
		if(x < 5) x = 5;
		if(y < 25) y = 25;
		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;
		
		if(!good) {
			Dir[] dirs = Dir.values();	//将值转换为数组
			if(step == 0) {
				step = r.nextInt(15) + 3;
				int rn = r.nextInt(dirs.length);
				dir = dirs[rn];						//给方向赋随机值
			}
			step --;			//为防止step减为0，加入了上面的if
			
			if(r.nextInt(40) > 37) this.fire();
		}
	}
	
	public 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;
		}
		locateDirection();
	}
	
	void locateDirection() {
		if(bL && !bU && !bR && !bD) dir = Dir.L;
		else if(bL && bU && !bR && !bD) dir = Dir.LU;
		else if(!bL && bU && !bR && !bD) dir = Dir.U;
		else if(!bL && bU && bR && !bD) dir = Dir.RU;
		else if(!bL && !bU && bR && !bD) dir = Dir.R;
		else if(!bL && !bU && bR && bD) dir = Dir.RD;
		else if(!bL && !bU && !bR && bD) dir = Dir.D;
		else if(bL && !bU && !bR && bD) dir = Dir.LD;
		else if(!bL && !bU && !bR && !bD) dir = Dir.STOP;
	}

	public void keyReleased(KeyEvent e) {
		int  key = e.getKeyCode();
		switch(key) {
		case KeyEvent.VK_CONTROL:
			fire();
			break;
		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;
		}
		locateDirection();
	}
	
	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,good,ptdir,this.tc);
		tc.missiles.add(m);
		return m;
	}
	
	public Rectangle getRect() {
		return new Rectangle(x,y,WIDTH,HEIGHT);
	}

	public boolean isLive() {
		return live;
	}

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

	public boolean isGood() {
		return good;
	}
}