photon.h

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/*****************************************************************************
 * $Id: photon.h,v 1.5 2003/06/27 08:38:26 schou Exp $
 * Author: Jakob Schou Jensen <schou@sourceforge.net>
 * Licence: GPL
 *
 * Description: Photon particle
 *
 ****************************************************************************/

#ifndef PHOTON_H
#define PHOTON_H

#include <adsobase.h>
#include <adsomath.h>
#include "vehicle.h"

#define PHOTON_COUNT 128

struct PhotonDef {
  u_int createTime;
  v3f x, P;
  float lifeTimer;
};

class Photon {
  static int photonIndex;
  static int st_pi[SOUND_PHOTON_NUM];
  static int st_si[SOUND_PHOTON_NUM];
 public:
  static Photon array[PHOTON_COUNT];
  int active;
  float lifeTimer;
  class Vehicle *ignoreCollision;
  int remoteOwner;

  // Constants
  float mass;     // mass M

  // State values
  v3f x;          // Center of mass
  v3f P;          // Linear momentum

  // Derived values
  v3f v;          // Linear velocity

  void update(float);
  void draw();

  Photon(){
    mass = 1.0;
    x = v3f(0.0,0.0,0.0);
    P = v3f(0.0,0.0,0.0);
    active = 0;
    lifeTimer = 0.0;
    ignoreCollision = 0;
    remoteOwner = 0;
  }

  static Photon *create(){ 
    Photon *p = &array[photonIndex++]; 
    if(photonIndex>=PHOTON_COUNT) photonIndex=0; 
    return p;
  }

  static void audio();
  static void audioInit();
};

#endif

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