missile.java

来自「坦克大战的初级模型1.0 坦克大战的初级模型1.0」· Java 代码 · 共 60 行

import java.awt.*;

public class Missile {
	private static final int XSPEED = 20;
	private static final int YSPEED = 20;
	int x,y;
	Tank.Direction dir;
	
	public Missile(int x, int y, Tank.Direction dir) {
		this.x = x;
		this.y = y;
		this.dir = dir;
	}

	public void draw(Graphics g) {
		Color c = g.getColor();
		g.setColor(Color.white);
		g.fillOval(x, y,10, 10);
		g.setColor(c);
		
		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;
		}
		
	}
}