乌龟

龟壳倒是能走，但是脚不能动

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Toolkit;

import javax.swing.JFrame;

public class Tt extends JFrame implements Runnable {
    WG[] wg = new WG[4];
    Dimension screen;
    public Tt() {
        screen=Toolkit.getDefaultToolkit().getScreenSize();
        this.setBounds(0, 0, (int)screen.getWidth(), (int)screen.getHeight());
        this.setVisible(true);
        this.setDefaultCloseOperation(EXIT_ON_CLOSE);
        wg[0] = new WG();
        wg[1] = new WG();
        wg[2] = new WG();
        wg[3] = new WG();
        wg[3].v = 5;// 
        wg[0].x = 110;
        wg[0].y = 400;
        wg[1].x = 410;
        wg[1].y = 400;
        wg[2].x = 710;
        wg[2].y = 400;
        wg[3].x = 1010;
        wg[3].y = 400;
        Thread t = new Thread(this);
        t.start();
    }

    public static void main(String[] args) {
        new Tt();
    }

    public void paint(Graphics g) {
        g.fillRect(0, 0, 1366, 768);
        int j1 = 400;
        int j2 = 400;
        int j3 = 400;
        int j4 = 400;
        for (int i = 0; i < 4; i++) {// 
            g.setColor(Color.getHSBColor(169, 40, 3));
            g.fillOval(wg[i].x, wg[i].y, 70, 100);
            g.setColor(Color.BLACK);
            g.fillOval(wg[i].x + 10, wg[i].y + 30, 10, 10);
            g.fillOval(wg[i].x + 50, wg[i].y + 30, 10, 10);// 
            g.setColor(Color.getHSBColor(169, 40, 3));
            g.fillOval(wg[i].x, wg[i].y + 290, 60, 80);
            g.setColor(Color.LIGHT_GRAY);
            g.fillOval(wg[i].x + 20, wg[i].y + 300, 60, 80);//
            g.setColor(Color.getHSBColor(169, 40, 3));
            g.fillOval(wg[i].x - 90, j1 + 75, 110, 70);// 
            g.setColor(Color.getHSBColor(169, 40, 3));
            g.fillOval(wg[i].x + 85, j2 + 70, 70, 70);// 
            g.setColor(Color.getHSBColor(169, 40, 3));
            g.fillOval(wg[i].x - 80, j3 + 235, 70, 70);// 
            g.setColor(Color.getHSBColor(169, 40, 3));
            g.fillOval(wg[i].x + 80, j4 + 235, 70, 70);//
            g.setColor(Color.GREEN);
            g.fillOval(wg[i].x - 66, wg[i].y + 69, 200, 230);//
            g.setColor(Color.black);
            g.drawOval(wg[i].x - 65, wg[i].y + 70, 200, 230);
            g.setColor(Color.black);//
            g.drawLine(wg[i].x + 5, wg[i].y + 130, wg[i].x + 75, wg[i].y + 130);
            g.drawLine(wg[i].x - 10, wg[i].y + 82, wg[i].x + 5, wg[i].y + 130);
            g.drawLine(wg[i].x + 75, wg[i].y + 130, wg[i].x + 100,wg[i].y + 95);
            g.drawLine(wg[i].x - 67, wg[i].y + 200, wg[i].x + 135,wg[i].y + 200);
            g.drawLine(wg[i].x + 5, wg[i].y + 250, wg[i].x + 75, wg[i].y + 250);
            g.drawLine(wg[i].x + 5, wg[i].y + 250, wg[i].x - 20, wg[i].y + 278);
            g.drawLine(wg[i].x + 100, wg[i].y + 275, wg[i].x + 75,wg[i].y + 250);
            g.drawLine(wg[i].x + 40, wg[i].y + 70, wg[i].x + 40, wg[i].y + 300);
        }
    }

    @Override
    public void run() {
        while (true) {
            for (int i = 0; i < 4; i++) {
                if (wg[i].y > 0)
                    wg[i].y = wg[i].y - wg[i].v;
                else
                    //wg[i].y += wg[i].v;//
                    wg[i].y=400;
            }
            repaint();
            try {
                Thread.sleep(100);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}

class WG {
    int x, y;//
    int v=0;//
}