/* sparkle2d.h
   manage 2D sparkles (in 2D mode, of course)

   Copyright (C) 2000  Mathias Broxvall
   		       Yannick Perret

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#ifndef SPARKLE2D_H
#define SPARKLE2D_H


/* structure of a sparkle */
typedef struct _sparkle
{
  float pos[3];
  float speed[3];
  float color[4];
  float size;
  float age;
  float ttl;
  struct _sparkle *next, *prev;
}Sparkle;

class Sparkle2D {
public:
  Sparkle2D();
  ~Sparkle2D();

  // update sparkles
  void tick(Real t);
  // draw sparkles
  void draw();
  // add a new sparkle
  int add(float px, float py, float vx, float vy, float ttl, float size, float r, float g, float b, float a);
  int add(float pos[2], float speed[2], float ttl, float size, float color[3]);
  int add(float pos[2], float speed[2], float ttl, float size);
  int add(float pos[2], float speed[2], float ttl);
  int add(float pos[2], float ttl);
  int add(float pos[2]);
  // remove all current sparkles (i.e. before changing screen)
  void clear();
  static Sparkle2D *sparkle2D;

private:
  // add a sparkle in the list
  Sparkle *create_and_insert();
  // remove a specific sparkle
  void remove_sparkle(Sparkle *sparkle);
  // list of sparkles
  Sparkle *sparkle_first;
};


#endif