/* Copyright 2001 Michael R. Wick */

package Shapes;

import java.awt.*;

public class Triangle extends Polygon {
  protected final static int SIDES = 3;
  protected int length ;

  public Triangle(Point center, int l, Color aColor) {
    super(center,SIDES,aColor);
    length = l;

    double c = length / (2.0 * Math.cos(degreesToRadians(30)) );
    double a = Math.tan(degreesToRadians(30)) * 0.5 * length;

    theVertices[0] = new Point(center.x, (int)(center.y - c));
    theVertices[1] = new Point((int)(center.x - .5 * length),
                                  (int)(center.y + a));
    theVertices[2] = new Point((int)(center.x + 0.5 * length),
                                  (int)(center.y + a));
  }

  public Triangle( Triangle orig ){
    super(orig);
    length = orig.length;
    theVertices = new Point[SIDES];
    for(int i = 0; i < theVertices.length; i++){
      theVertices[i] = new Point( orig.theVertices[i] );
    }
  }

  public Shape copy(){
    return (new Triangle(this) );
  }

}