/* ------------------------------------------------------------------
 * GEM - Graphics Environment for Multimedia
 *
 * SPDX-FileCopyrightText: © 1997, Mark Danks and the GEM contributors
 * SPDX-License-Identifier: GPL-2.0-or-later
 *
 * ------------------------------------------------------------------
 */

#ifndef _INCLUDE__GEM_PARTICLES_PART_COLOR_H_
#define _INCLUDE__GEM_PARTICLES_PART_COLOR_H_

#include "Particles/partlib_base.h"

/*-----------------------------------------------------------------
-------------------------------------------------------------------
CLASS

  part_color

DESCRIPTION

  Set the color for a particle system

-----------------------------------------------------------------*/
class GEM_EXTERN part_color : public partlib_base
{
  CPPEXTERN_HEADER(part_color, partlib_base);

public:

  //////////
  // Constructor
  part_color();

  //////////
  virtual void    renderParticles(GemState *state);

protected:

  //////////
  // Destructor
  virtual ~part_color();

  //////////
  // One end of the range
  float                   m_color1[4];

  //////////
  // Other end of the range
  float                   m_color2[4];

  //////////
  // Color changed
  void            color1Mess(float red, float green, float blue,
                             float alpha);

  //////////
  // Color changed
  void            color2Mess(float red, float green, float blue,
                             float alpha);

private:

  //////////
  // static member functions
  static void     color1MessCallback(void *data, t_symbol*,int,t_atom*);
  static void     color2MessCallback(void *data, t_symbol*,int,t_atom*);
};

#endif  // for header file
