//GW_ParticleSystem.h, (c) 2006 Danny Green, Radioactive-Software.com

#ifndef GW_PARTICLE_H
#define GW_PARTICLE_H

struct SParticle
{
 bool m_Active;	// If the particle is active or not.
 unsigned char m_ParticleType; //Type of particle. 
 float m_Life;	//Particle Life.
 float m_FadeRate; // Fade Speed.
 D3DXCOLOR m_Color; //Color of the particle.
 D3DXVECTOR3 m_Position; //Position of the particle.
 D3DXVECTOR3 m_Velocity; //Velocity of the particle.
 D3DXVECTOR3 m_Gravity; //Gravity vector.
 float m_Rotation; //Particles rotation.
 float m_Scale; //Visual scale of the particle.

 bool m_FadeColorFlag; //If the color should be faded.
 bool m_RotateFlag; //If the particle rotates after it is spawned. 
 bool m_FadeAlphaFlag; //If the alpha should be faded
};

class CParticleSystem
{
 public:
  CParticleSystem(void); //Default constructor.

 ~CParticleSystem(void); //Default destructor.

 void Reset(void); //Resets the particle system

 void Advance(float TimeStep); //Advances the particle system.

 void AddParticle(D3DXVECTOR3 Position, D3DXCOLOR Color, D3DXVECTOR3 Speed, D3DXVECTOR3 Gravity, float Fade, unsigned char ParticleType, int ForceIndex, float Scale, bool FadeColor, bool FadeAlpha, bool Rotates); //Spawns a new particle.

 private:
  SParticle m_Particles[MAX_PARTICLES]; //Particle structs.
 
};

#endif

//GW_ParticleSystem.cpp : Contains code for the particle system.
//(c) 2006 Danny Green, Radioactive-Software.com

#include "GW_Headers.h"
#include "GW_Externs.h"

float gParticleSpeedModifier = 0.4;

CParticleSystem::CParticleSystem(void)
{
 Reset();
} //end of constructor

CParticleSystem::~CParticleSystem(void)
{
 Reset();
} //end of deconstructor

void CParticleSystem::Reset(void)
{
 //Clear all particles
 for(int i =0; i < MAX_PARTICLES; i++)
 {
  m_Particles[i].m_Active = false;
  m_Particles[i].m_FadeColorFlag = false;
  m_Particles[i].m_ParticleType = 0;
  m_Particles[i].m_Life = 1.0;
  m_Particles[i].m_FadeRate = 0;
  m_Particles[i].m_Scale = 0;
  m_Particles[i].m_Position.x = 0.0;
  m_Particles[i].m_Position.y = 0.0;
  m_Particles[i].m_Position.z = 0.0;
  m_Particles[i].m_Color.r = 0;
  m_Particles[i].m_Color.g = 0;
  m_Particles[i].m_Color.b = 0;
  m_Particles[i].m_Velocity.x = 0;
  m_Particles[i].m_Velocity.y = 0;
  m_Particles[i].m_Velocity.z = 0;
  m_Particles[i].m_Gravity.x = 0;
  m_Particles[i].m_Gravity.y = 0;
  m_Particles[i].m_Gravity.y = 0;
 } //end of for loop
} //end of Reset

double LastFired1 = 0, LastFired2 = 0;

void CParticleSystem::Advance(float TimeStep)
{
 //Shells
 for(int k = 0; k < 1; k++)
 {
  AddParticle(D3DXVECTOR3(0,15,0), D3DCOLOR_ARGB(255,255,225,255), D3DXVECTOR3(-float((rand()%50)-26.0f)*2.1,float((rand()%50))*2.1,-float((rand()%50)-26.0f)*2.1), D3DXVECTOR3(0,-10.2,0), float(rand()%50)/5500.0f+0.005f, 1, -<span class="c