raRain.cpp

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#include "..\include\raMain.h"

namespace System
{
    raRain::raRain(raSmartPointer<raDirectX> dx, raCamera *Cam, LPCSTR EffectFile, LPCSTR Texture) : m_cam(Cam)
    {
        raRain(dx.get(), Cam, new System::raTexturedMaterial(dx.get(),  EffectFile, "RenderParticle", Texture));
    }
    raRain::raRain(raDirectX *dx, raCamera *Cam, raTexturedMaterial *mat) : m_cam(Cam)
    {
        m_pParticleSystem = new raParticleSystem(dx, mat, false, 0.05f, -0.0981f, 15.0f);
    }
    void raRain::OnRender(float fTime, float fRunTime)
    {
        if(m_pParticleSystem)
        {
            static float t = 0;
            t += fTime;
            if( t > 1.0f)
            {
                makeParticles();
                t = 0.0f;
            }
        }
    }
    void raRain::makeParticles(void)
    {
        const raVector3* p = m_cam->GetEyePt();
        for(int i = -50; i <= 50; i+= 5)
        {
            for(int j = -50; j <= 50; j+= 5)
            {
                m_pParticleSystem->AddParticle(
                    (float)p->x + i + (((float)rand() / (float)RAND_MAX) - 0.5f) * 5.0f,
                    (float)p->y + 5 + (((float)rand() / (float)RAND_MAX) - 0.5f) * 5.0f,
                    (float)p->z + j + (((float)rand() / (float)RAND_MAX) - 0.5f) * 5.0f,
                    (((float)rand() / (float)RAND_MAX) - 0.5f) * 0.1f,
                    (((float)rand() / (float)RAND_MAX) - 0.5f) * 0.1f,
                    (((float)rand() / (float)RAND_MAX) - 0.5f) * 0.1f);
            }
        }
    }

    raRain::~raRain(void)
    {
    }
};