/*************************************************************************
 *  Compilation:  javac Second.java
 *  Execution:    java Second initial_second
 *  Dependencies: StdDraw.java
 *
 *  Skeleton code for the clock.
 *
 *  % java Second 15  
 *
 *************************************************************************/

public class Second { 
    public static void main(String[] args) {

        // set the scale of the coordinate system
        StdDraw.setXscale(-1.0, 1.0);
        StdDraw.setYscale(-1.0, 1.0);

        // initial second of the clock from the input
        int second = Integer.parseInt(args[0]);

        // initial angle for the second hand 
        double secondAngle = -second * Math.PI/30 + Math.PI / 2.0;
      
        // draw the panel
        StdDraw.circle(0, 0, 1);

        // 
        // Place your code here for drawing the markers and digits on the panel
        //

        // main animation loop
        while (true)  {             
            // clear the background
            StdDraw.setPenColor(StdDraw.WHITE); 
            StdDraw.filledCircle(0, 0, 0.8);
            double x, y;
            
            //
            // PLACE your code here for the hour hand and minute hand
            //

            // compute the location of the second hand 
            x = 0.75 * Math.cos(secondAngle);
            y = 0.75 * Math.sin(secondAngle);
           
            // draw the second hand on the canvas           
            StdDraw.setPenColor(StdDraw.BLACK);
            StdDraw.setPenRadius(0.005);
            StdDraw.line(0, 0, x, y);

            //update the second hand angle
            secondAngle -= Math.PI/30;
            secondAngle = secondAngle % (2 * Math.PI);

            // display and pause for 1 s
            StdDraw.show(1000); 
        } 
    } 
}