raParticleSystem.h

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#pragma once

    struct RAPI raParticle
    {
        raVector3       m_Position;
        raVector3       m_Velocity;
        raVector3       m_Acceleration;

        float           m_age;
        float           m_speed;

        raParticle();
        void Update(float fTime);
    };

    class RAPI raParticleSystem : public raEntity<POINTSPRITEVERTEX, false>
    {
    public:
        static const int MAXPARTICLES = 500000;
    public:
        raParticleSystem(raSmartPointer<raDirectX> dx, raTexturedMaterial* mat, bool bAdditive = false,
            float radius = 1.0f, float gravity = 1.0f, float Speed = 2.0f, float max_age = 0.0f);
        virtual ~raParticleSystem(void);

        void AddParticles(int n, float x = 0, float y = 0, float z = 0);
        void AddParticle(float x = 0, float y = 0, float z = 0,
                         float vx = 0, float vy = 0, float vz = 0);

        virtual bool RenderMesh(LPCSTR techniqueName = "");
        virtual bool Update(float fTime, float fRunTime);

    protected:
        virtual void SetupVertices();
    private:
        std::list<raParticle>   m_Particles;

        raArray<raParticle>     m_Particlesex;

        float                   m_radius;
        float                   m_gravity;
        float                   m_maxAge;
        float                   m_speed;

        ID3DX11EffectMatrixVariable*    m_pmInvView_ParticleSystem;
    };