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

#ifndef WB3MATERIAL_H
#define WB3MATERIAL_H

//----------------------------------------------------------------------------
#include <vec3f.hpp>


class wb3Material
{
public:

  wb3Material(const Vec3f& KAmbient, 
              const Vec3f& KDiffuse, 
              const Vec3f& KSpecular,
              const Vec3f& KReflect, 
              const Vec3f& KRefract,
              float SpecExp = 2.0f,
              float Index = 1.0f);
  wb3Material(const Vec3f& K, float SpecExp = 2.0f, float Index = 1.0f);
  wb3Material(float SpecExp = 2.0f, float Index = 1.0f);
  ~wb3Material() {};

  const Vec3f& GetAmbient() const;
  const Vec3f& GetDiffuse() const;
  const Vec3f& GetSpecular() const;
  const Vec3f& GetReflect() const;
  const Vec3f& GetRefract() const;

  void SetAmbient(const Vec3f& KAmb);
  void SetDiffuse(const Vec3f& KDif);
  void SetSpecular(const Vec3f& KSpec);
  void SetReflect(const Vec3f& KRefl);
  void SetRefract(const Vec3f& KRefr);

  float GetSpecularity() const;
  void SetSpecularity(float fSpec);

  float GetIndex() const;
  void SetIndex(float fIndexOfRefraction);

protected:
  wb3Material *m_pNext;
  Vec3f m_KAmbient;
  Vec3f m_KDiffuse;
  Vec3f m_KSpecular;
  Vec3f m_KReflect;
  Vec3f m_KRefract;
  float m_fSpecExp;
  float m_fIndex;   // index of refraction
};

//----------------------------------------------------------------------------
inline const Vec3f& wb3Material::GetAmbient() const
{
  return m_KAmbient;
}
//----------------------------------------------------------------------------
inline const Vec3f& wb3Material::GetDiffuse() const
{
  return m_KDiffuse;
}
//----------------------------------------------------------------------------
inline const Vec3f& wb3Material::GetSpecular() const
{
  return m_KSpecular;
}
//----------------------------------------------------------------------------
inline const Vec3f& wb3Material::GetReflect() const
{
  return m_KReflect;
}
//----------------------------------------------------------------------------
inline const Vec3f& wb3Material::GetRefract() const
{
  return m_KRefract;
}
//----------------------------------------------------------------------------
inline float wb3Material::GetIndex() const
{
  return m_fIndex;
}
//----------------------------------------------------------------------------
inline void wb3Material::SetAmbient(const Vec3f& KAmb)
{
  m_KAmbient = KAmb;
}
//----------------------------------------------------------------------------
inline void wb3Material::SetDiffuse(const Vec3f& KDif)
{
  m_KDiffuse = KDif;
}
//----------------------------------------------------------------------------
inline void wb3Material::SetSpecular(const Vec3f& KSpec)
{
  m_KSpecular = KSpec;
}
//----------------------------------------------------------------------------
inline void wb3Material::SetReflect(const Vec3f& KRefl)
{
  m_KReflect = KRefl;
}
//----------------------------------------------------------------------------
inline void wb3Material::SetRefract(const Vec3f& KRefr)
{
  m_KRefract = KRefr;
}
//----------------------------------------------------------------------------
inline void wb3Material::SetIndex(float fIndexOfRefraction)
{
  m_fIndex = fIndexOfRefraction;
}
//----------------------------------------------------------------------------
inline float wb3Material::GetSpecularity() const
{
  return m_fSpecExp;
}
//----------------------------------------------------------------------------
inline void wb3Material::SetSpecularity(float fSpecularity)
{
  m_fSpecExp = fSpecularity;
}
//----------------------------------------------------------------------------
#endif