Particles.hpp

 
#pragma once
#include <thread>
#include <glm/glm.force.hpp>
#include "Defines.hpp"
#include "GameObject.hpp"
 
namespace basement
{
 
namespace model
{

class Particles final :
  public GameObject
{
  class Particle
  {
  public:
    ::glm::vec3 Position;
    ::glm::vec3 Speed;
    float HalfSize;
    float Time;
  };
 
  class Instance
  {
  public:
    static String_t GetDescriptor(void) { return uT("i4f4"); }
    int32_t i1, i2, i3, i4; // Заглушка, чтобы проверять корректность смещения
    float x, y, z, HalfSize;
  };
 
  using ParticlesPtr_t = ::std::shared_ptr<::std::vector<Particle>>;
 
public:
  Objects_t GetObject(const Any_t &) const override;
 
private:
  void BuildVertexesParticles(void);
  void BuildInstansedParticles(void);
  Objects_t GetVertexesObject(void) const;
  Objects_t GetInstancedObject(void) const;
 
private:
  const bool                        m_IsParticleInstance;
  const ::std::size_t               m_Count;
  const float                       m_ParticleHalfSize = 0.03f;
  ParticlesPtr_t                    m_pParticles;
  ::std::vector<Vertex_t>           m_Vertexes;
  ::std::vector<::std::vector<int>> m_Indices;
  //::std::vector<::std::thread>      m_Threads;
 
private:
  Particles(void);
  friend GameObject;
};
 
} // namespace model
 
} // namespace basement