【原创】纯OO：从设计到编码写一个FlappyBird （五）

import javax.swing.*;
import java.awt.*;
import java.util.LinkedList;
import java.awt.event.*;

public interface DrawBoard {
    public void draw();
}

class SimpleDraw extends JPanel implements DrawBoard {
    Bing bing;
    Obstacle obs;
    final LinkedList<Pillar> pillar;

    SimpleDraw(Bing bing,Obstacle obs)
    {
        this.bing = bing;
        this.obs  = obs;
        this.pillar = obs.getObstacles();
    }
    
    public void draw()
    {
        this.repaint();
    }
    
    public void paintComponent(Graphics g)
    {
        g.setColor(Color.white);
        g.fillRect(0,0,this.getWidth(),this.getHeight());
        paintBing(g);
        paintObs(g);
    }
    
    private void paintObs(Graphics g)
    {
        g.setColor(Color.black);
        for (Pillar p : pillar)
        {
            g.fillRect(p.getX(),0,p.getWidLmt(),p.getHeight());
            g.fillRect(p.getX(),p.getHeight() + p.getHeiGap(),p.getWidLmt(),this.getHeight() - p.getHeight() - p.getHeiGap());
        }
    }
    
    private void paintBing(Graphics g)
    {
        g.setColor(Color.blue);
        g.fillOval(bing.getX(),bing.getY(),bing.getWidth(),bing.getHeight());
    }
}