Java 动态太极图 DynamicTaiChi (整理)

package demo;

import java.awt.Color;
import java.awt.Graphics;

import javax.swing.JFrame;
import javax.swing.JPanel;

/**
*                   Java 动态太极图 DynamicTaiChi (整理)
*
*                                          2016-1-2 深圳 南山平山村 曾剑锋
*/

public class DynamicTaiChi extends JPanel{
private static final long serialVersionUID = 1L;
/*
*           所有的数据都是按比例依照centerX进行改变的,所以
* 如果想要更改面板大小的话,可以直接改centerX的值.
*/
static int centerX = 600/2;
static int centerY = centerX;
static int cicle = centerX;
static int angle = 0;

public DynamicTaiChi() {
start();
}
private void start() {
new Thread(new Runnable() {

@Override
public void run() {
while (true) {
try {
angle++;
Thread.sleep(10);
repaint();
} catch (Exception e) {
e.printStackTrace();
}
}

}
}).start();
}
@Override
public void paint(Graphics graphics) {
super.paint(graphics);
this.setBackground(Color.red);
graphics.setColor(Color.white);
graphics.fillArc(centerX-cicle/2, centerY-cicle/2, cicle, cicle, angle, 180);
graphics.setColor(Color.black);
graphics.fillArc(centerX-cicle/2, centerY-cicle/2, cicle, cicle, 180+angle, 180);
graphics.fillArc(centerX+(int)(cicle/2/2*(Math.cos(angle*Math.PI/180)))-cicle/2/2, centerY-(int)(cicle/2/2*(Math.sin(angle*Math.PI/180)))-cicle/2/2, cicle/2, cicle/2, 0, 360);
graphics.setColor(Color.white);
graphics.fillArc(centerX+(int)(cicle/2/2*(Math.cos((angle+180)*Math.PI/180)))-cicle/2/2, centerY-(int)(cicle/2/2*(Math.sin((angle+180)*Math.PI/180)))-cicle/2/2, cicle/2, cicle/2, 0, 360);
graphics.setColor(Color.black);
graphics.fillArc(centerX+(int)(cicle/2/2*(Math.cos((angle+180)*Math.PI/180)))-cicle/2/2/2, centerY-(int)(cicle/2/2*(Math.sin((angle+180)*Math.PI/180)))-cicle/2/2/2, cicle/2/2, cicle/2/2, 0, 360);
graphics.setColor(Color.white);
graphics.fillArc(centerX+(int)(cicle/2/2*(Math.cos(angle*Math.PI/180)))-cicle/2/2/2, centerY-(int)(cicle/2/2*(Math.sin(angle*Math.PI/180)))-cicle/2/2/2, cicle/2/2, cicle/2/2, 0, 360);
}

public static void main(String[] args) {
JFrame jFrame = new JFrame();
jFrame.setTitle("DynamicTaiChi");
jFrame.setSize(centerX*2, centerY*2);
jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jFrame.setLocationRelativeTo(null);

DynamicTaiChi jPanel = new DynamicTaiChi();
jFrame.add(jPanel);

jFrame.setVisible(true);
}
}