Mountain

package mountain;

import fractal.*;

public class Mountain extends Fractal{
	private Point p1;
	private Point p2;
	private Point p3;
	private double dev;

	public Mountain(Point p1, Point p2, Point p3, double dev){
		super();
		this.p1 = p1;
		this.p2 = p2;
		this.p3 = p3;
		this.dev = dev;
	}

	@Override
	public String getTitle() {
		return "Mountain Fractals";
	}

	@Override
	public void draw(TurtleGraphics turtle) {
		turtle.moveTo(p1.getX(), p1.getY());
		fractalLine(turtle, order, p1, p2, p3);
	}


	private void fractalLine(TurtleGraphics turtle, int order, Point p1, Point p2, Point p3) {
		if(order == 0) {
			drawMinTriangle(turtle, p1, p2, p3);
		}
		else {
			//dev = dev/2;
			Point mP1 = mid(p1, p2, dev);
			Point mP2 = mid(p2, p3, dev);
			Point mP3 = mid(p3, p1, dev);



			fractalLine(turtle, order-1, p1, mP1, mP3);
			fractalLine(turtle, order-1, p2, mP1, mP2);
			fractalLine(turtle, order-1, p3, mP2, mP3);
			fractalLine(turtle, order-1, mP1, mP2, mP3);
			}
	}


	/* Gives the point in the "deviated" middle of two points */
	private Point mid(Point x1, Point x2, double deviation) {
		double rand = RandomUtilities.randFunc(deviation);
		Point midPoint = new Point((x1.getX()+x2.getX())/2.0, (x1.getY()+x2.getY())/ 2.0 + rand/2);
		return midPoint;
	}

	private void drawMinTriangle(TurtleGraphics turtle, Point x1, Point x2, Point x3) {
		turtle.moveTo(x1.getX(), x1.getY());
		turtle.forwardTo(x2.getX(), x2.getY());
		turtle.forwardTo(x3.getX(), x3.getY());
		turtle.forwardTo(x1.getX(), x1.getY());
	}



}