Koch Snowflake

gistfile1.txt

package recursion;

import cos126.StdDraw;
import java.awt.geom.*;
import java.lang.Math;

public class KochSnowflake
{
    public static Point2D.Double ref;
    public static int rotation = 0;
    public static int side_rotation = 0;
    public static int current_turn = 60;
	public static void main(String[] args) 
	{
		StdDraw.setXscale(0, 130);
        StdDraw.setYscale(0, 100);
        int n = Integer.parseInt(args[0]);
		double size = (25/Math.pow(3.0, n));
		ref = new Point2D.Double(10, 80);
		System.out.println("Size: " + size);
		turn(0);
		koch(n, size);
        side_rotation = -120;
		koch(n, size);
        side_rotation = -240;
		koch(n, size);
		side_rotation = 0;
		
	}
    static void koch(int n, double size)
    {
        if (n == 0) 
        {
            draw_line(ref, size);
        }
        else
        {   
			current_turn = 0;
            koch(n-1, size);
            turn(60);
            koch(n-1, size);
            turn(-60);
            koch(n-1, size);
            turn(0);
            koch(n-1, size);   
			
			
        }
    }
    
    
    static void draw_line(Point2D.Double p1, double size)
    {
        Point2D.Double p2 = new Point2D.Double(p1.x + size*Math.cos((rotation+current_turn+side_rotation)*((Math.PI)/180)), (p1.y + size*Math.sin((rotation+current_turn+side_rotation)*((Math.PI)/180))));
        StdDraw.line(p1.x, p1.y, p2.x, p2.y);
        ref = p2;
    }
    static void turn(int rot) 
    {
        rotation = rot;
    }
	static int getTurn() {
		return rotation;
	}
	
}