Applet

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Java

Asteroid.java：源码内容

							package asteroids;
import java.awt.Polygon;
import java.awt.Rectangle;
public class Asteroid extends BaseVectorShape {
	
	private int[] astx={-20,-13,0,20,22,20,12,2,-10,-22,-16};
	private int[] asty={20,23,17,20,16,-20,-22,-14,-17,-20,-5};
	
	protected double rotVel;
	
	public double getRotationVelocity(){return rotVel;}
	public void setRotationVelocity(double v){rotVel=v;}
	
	public Rectangle getBounds(){
		Rectangle r;
		r=new Rectangle((int)getX()-20,(int)getY()-20,40,40);
		return r;
	
	}
	public Asteroid() {
		// TODO Auto-generated constructor stub
		setShape(new Polygon(astx,asty,astx.length));
		setAlive(true);
		setRotationVelocity(0.0);
	}
}

						