/**
 * CS798 Project - design.hpp
 * April 21, 2006
 *
 * Erika Harrison
 */

#ifndef CS798_DESIGN_HPP
#define CS798_DESIGN_HPP

#include "algebra.hpp"
#include "layer.hpp"
#include "const.hpp"
#include <vector>

using namespace std;

// stores a Design object, and methods for drawing
class Design {
public:
  Design(); // constructor -- pass in params
  ~Design(); // deconstructor

  // draws all the layerings on the design
  void draw(Const::MathMode mM, Const::ViewMode vM); // draws the design
  void drawLayer(Layer * l, Const::MathMode mM, Const::ViewMode vM); // draws a layer

  // param settings
  void setA(double A);  void setB(double B); 
  void setC(double C);  void setD(double D); 
  void setE(double E);  void setF(double F); 
  void setG(double G);  void setH(double H); 
  void sett(double t);  void settInc(double tI);
  void setColour(Colour c); void setWidth(int w);
  void setBG(Colour c) { m_bg = c; }

  // allow us to work with multiple layers
  void addLayer() 
  	{ layers.push_back(new Layer()); sellayer = layers.size() - 1; 
	  updateSelection(); }
  void deleteLayer(); // deletes the selected layer
  void rotateLayer(char axis, double angle) 
  	{ layers[sellayer]->rotateLayer(axis, angle); }

  // TODO
  //void reset(); 

private:
  // layers
  vector<Layer*> layers;
  int sellayer;

  // background colouring
  Colour m_bg;

  // used for updating the selection menu
  void updateSelection();

  // converts unit circle point to an egg shape
  void eggify(Vector3D & point);
  void vertex(Vector3D v); // helper print out sphere normal, egg vertex

};

#endif