//----------------------------------------------------------------------------
// William Baxter III's Ray Tracer
//
//     Project for Comp 238, Raster Graphics
//     University of North Carolina at Chapel Hill
//     
// $Id:$
//----------------------------------------------------------------------------

#ifndef WB3TEXTURESET_H
#define WB3TEXTURESET_H

//----------------------------------------------------------------------------
// The TextureSet class manages a set of textures used in shading
// a single primitive.  A single primitive could use multiple bitmap 
// textures to modulate each of the components (ambient, diffuse, specular) 
// its material.  So a TextureSet contains an array of lists of pointers
// to textures.
//----------------------------------------------------------------------------

#include <list>
#include "wb3Components.hpp"
#include "wb3Texture.hpp"

typedef std::list<wb3Texture*> wb3TextureList;

class wb3TextureSet 
{
public:
  wb3TextureSet() ;
  ~wb3TextureSet() ;

  const wb3TextureList* GetTextureList(wb3Component::ComponentType t) const;
  void AddTexture(wb3Texture *tex, wb3Component::ComponentType typ);

protected:
  wb3TextureList m_lists[wb3Component::MAX_COMPONENT];
};

//----------------------------------------------------------------------------
inline const wb3TextureList* wb3TextureSet::GetTextureList(
    wb3Component::ComponentType type) const
{
  return &m_lists[type];
}
//----------------------------------------------------------------------------
inline void wb3TextureSet::AddTexture(
    wb3Texture *tex, wb3Component::ComponentType type)
{
  m_lists[type].push_back(tex);
}

//----------------------------------------------------------------------------
#endif