www.pudn.com > TankWar.rar > Missile.java

package com.bjsxt.tank; 
import java.awt.*; 
import java.util.List; 
 
public class Missile { 
	public static final int XSPEED = 10; 
	public static final int YSPEED = 10; 
	 
	public static final int WIDTH = 10; 
	public static final int HEIGHT = 10; 
	 
	int x, y; 
	Tank.Direction dir; 
	 
	private boolean good; 
	private boolean live = true; 
	 
	private TankClient tc; 
	 
	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.good = good; 
		this.tc = tc; 
	} 
	 
	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: 
			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(x < 0 || y < 0 || x > TankClient.GAME_WIDTH || y > TankClient.GAME_HEIGHT) { 
			live = false; 
		}		 
	} 
 
	public boolean isLive() { 
		return live; 
	} 
	 
	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.isGood()) { 
			if(t.isGood()) { 
				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 tanks) { 
		for(int i=0; i