import java.awt.*;
import java.util.Calendar;
import java.util.Date;
import java.applet.Applet;

public class Time extends Applet implements Runnable {
Graphics off_g;
Image off;
Thread th;
Date date;
Calendar ca;
String s;
String hour;
String minu;
String sec;
String day;
Font font1,font2;
double ra1,ra2,ra3;

/*********init********/
	public void init(){
		off = createImage(getSize().width,getSize().height);
		off_g = off.getGraphics();
		th = null;
		font1 = new Font("Dialog",Font.PLAIN,20);
		font2 = new Font("Dialog",Font.PLAIN,10);
		ra1 = ra2 = ra3 = 0;
 }

/*********start*******/
	public void start(){
		if (th == null){
			th = new Thread(this);
			th.start();
		}
	}

/*********run********/
	public void run() {
		while (th != null){
			repaint();

			try{
				th.sleep(1000);
			} catch (InterruptedException e){}
		}
	}

/********paint*******/
 public void paint(Graphics g){
		off_g.setColor(Color.white);
		off_g.fillRect(0,0,getSize().width,getSize().height);
		off_g.setColor(Color.white);
		off_g.setFont(font1);
		ca = Calendar.getInstance();
		
		ra1 = (Math.PI/30)*ca.get(ca.SECOND) - Math.PI/2;
		ra2 = (Math.PI/30)*ca.get(ca.MINUTE) - Math.PI/2;
		ra3 = (Math.PI/6)*ca.get(ca.HOUR) - Math.PI/2 + 
		((Math.PI*2)/(12*60))*ca.get(ca.MINUTE);

		draw_clock(ra1,ra2,ra3);//アナログ時計を描く
		s = change_toString();//時間、分、秒を文字列にする
		
		day = getDay(ca.get(ca.DAY_OF_WEEK));//曜日を文字列にする

		off_g.setColor(Color.white);
		off_g.drawString(ca.get(ca.YEAR) + " " + 
		(ca.get(ca.MONTH) + 1) + "/" + ca.get(ca.DATE) 
		+ " ",10,25);
		off_g.drawString(" " + day,10,50);
		off_g.drawString(s,10,75);
		off_g.setColor(Color.cyan);
		
		off_g.setFont(font2);
		off_g.drawString("Create by T.Funayama", 30,90);
		g.drawImage(off,0,0,this);
	}

/********draw_clock******/
	void draw_clock(double ra1, double ra2, double ra3){
	  int clock_x[] = new int[3];
	  int clock_y[] = new int[3];
	  clock_x[0] = clock_x[1] = clock_x[2] = 0;
	  clock_y[0] = clock_y[1] = clock_y[2] = 0;
	  int w = 3;
	  int length = 0;
	  double ra = 0;
	  off_g.drawOval(200,0,100,100);//時計の枠
	  off_g.drawLine(250,50,250+(int)(20*Math.cos(ra3)),
			 50+(int)(20*Math.sin(ra3)));//短針
	  
	  off_g.setColor(Color.green);
	  for (int i = 0; i <= 11; i++){//時間の点
			off_g.fillOval( (int)(45*Math.sin((Math.PI/6)*i))+250-3,
					(int)(45*Math.cos((Math.PI/6)*i))+50-3,6,6);
	  }
	  
	  for (int i = 1; i <= 3; i++){
	    switch (i){
	    case 1://短針
	      off_g.setColor(Color.white);
	      length = 25;
	      ra = ra3;
	      break;
	    case 2:
	      length = 40;
	      ra = ra2;
	      off_g.setColor(Color.yellow);
	      break;
	    case 3:
	      length = 45;
	      ra = ra1;
	      off_g.setColor(Color.cyan);
	      break;
	    }
	    clock_x[0] = 250+(int)Math.rint(length*Math.cos(ra));
	    clock_y[0] = 50+(int)Math.rint(length*Math.sin(ra));
	    clock_x[1] = 250+(int)Math.rint(w*Math.cos(ra-(Math.PI/2)));
	    clock_y[1] = 50+(int)Math.rint(w*Math.sin(ra-(Math.PI/2)));
	    clock_x[2] = 250+(int)Math.rint(w*Math.cos(ra+(Math.PI/2)));
	    clock_y[2] = 50+(int)Math.rint(w*Math.sin(ra+(Math.PI/2)));
	    if (i == 3){
	      off_g.drawLine(250,50,clock_x[0],clock_y[0]); 
	      clock_x[0] = 250+(int)Math.rint(13*-Math.cos(ra));
	      clock_y[0] = 50+(int)Math.rint(13*-Math.sin(ra));
	      off_g.drawLine(250,50,clock_x[0],clock_y[0]); 
	    }
	    else {
	      off_g.fillPolygon(clock_x,clock_y,3);
	      off_g.setColor(Color.pink);
	      off_g.drawPolygon(clock_x,clock_y,3);
	    }
	  }
	  off_g.setColor(Color.pink);
	  off_g.fillOval(250-4,50-4,8,8);
	}
  
  /*********getDay***********/
	String getDay(int day_num){
		String day;
		switch (day_num){
			case 1:
				 day = "Sunday";
				break;
			case 2:
				day = "Monday";
				break;
			case 3:
				day = "Tuesday";
				break;
			case 4:
				day = "Wednesday";
				break;
			case 5:
				day = "Thursday";
				break;
			case 6:
				day = "Friday";
				break;
			default:
				day = "Saturday";
		}
		return day;
	}

/*********change_toStirng********/
	String change_toString(){
		if (ca.get(ca.HOUR_OF_DAY) < 10)
			hour = "0" + ca.get(ca.HOUR_OF_DAY);
		else
			hour = Integer.toString(ca.get(ca.HOUR_OF_DAY));

		if (ca.get(ca.MINUTE) < 10)
			minu = "0" + ca.get(ca.MINUTE);
		else
			minu = Integer.toString(ca.get(ca.MINUTE));

		if (ca.get(ca.SECOND) < 10)
			sec = "0" + ca.get(ca.SECOND);
		else
			sec = Integer.toString(ca.get(ca.SECOND));
	
		return hour + ":" + minu + ":" + sec;
	}
/*******update********/
	public void update(Graphics g){
		paint(g);
	}

/*******stop********/
	public void stop(){
		if (th != null)
			th = null;
	}
}