missile.java

这是坦克大战网络版的源代码

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Rectangle;
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;
	
	TankClient tc;
	
	int x, y;
	Dir dir = Dir.R;
	boolean live = true;
	private boolean good;
	
	public Missile(int x, int y, boolean good, Dir dir) {
		this.x = x;
		this.y = y;
		this.good = good;
		this.dir = dir;
	}
	
	public Missile(int x, int y, boolean good, Dir dir, TankClient tc) {
		this(x, y, good, dir);
		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 Rectangle getRect() {
		return new Rectangle(x, y, WIDTH, HEIGHT);
	}
	
	public boolean hitTank(Tank t) {
		if(this.live && t.isLive() && this.good != t.good &&this.getRect().intersects(t.getRect())) {
			this.live = false;
			t.setLive(false);
			tc.explodes.add(new Explode(x, y, tc));
			return true;
		}
		return false;
	}
	
	public boolean hitTanks(List<Tank> tanks) {
		for(int i=0; i<tanks.size(); i++) {
			if(this.hitTank(tanks.get(i))) {
				return true;
			}
		}
		return false;
	}
}