axmol/extensions/Particle3D/ParticleUniverse/ParticleAffectors/CCPUParticle3DSineForceAffector.cpp

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#include "CCPUParticle3DSineForceAffector.h"
#include "extensions/Particle3D/ParticleUniverse/CCPUParticleSystem3D.h"

NS_CC_BEGIN
// Constants
const float PUParticle3DSineForceAffector::DEFAULT_FREQ_MIN = 1.0f;
const float PUParticle3DSineForceAffector::DEFAULT_FREQ_MAX = 1.0f;

//-----------------------------------------------------------------------
PUParticle3DSineForceAffector::PUParticle3DSineForceAffector(void) : 
    PUParticle3DBaseForceAffector(),
    _angle(361),
    _frequencyMin(DEFAULT_FREQ_MIN),
    _frequencyMax(DEFAULT_FREQ_MAX),
    _frequency(1.0f)
{
}
PUParticle3DSineForceAffector::~PUParticle3DSineForceAffector( void )
{

}
//-----------------------------------------------------------------------
void PUParticle3DSineForceAffector::preUpdateAffector(float deltaTime)
{
    // Scale by time
    _angle += _frequency * deltaTime;
    float sineValue = sin(_angle);
    _scaledVector = _forceVector * deltaTime * sineValue;

    if (_angle > M_PI * 2.0f)
    {
        _angle = 0.0f;

        if (_frequencyMin != _frequencyMax)
        {
            _frequency = cocos2d::random(_frequencyMin, _frequencyMax);
        }
    }
}
//-----------------------------------------------------------------------
const float PUParticle3DSineForceAffector::getFrequencyMin(void) const
{
    return _frequencyMin;
}
//-----------------------------------------------------------------------
void PUParticle3DSineForceAffector::setFrequencyMin(const float frequencyMin)
{
    _frequencyMin = frequencyMin;
    if (frequencyMin > _frequencyMax)
    {
        _frequency = frequencyMin;
    }
}
//-----------------------------------------------------------------------
const float PUParticle3DSineForceAffector::getFrequencyMax(void) const
{
    return _frequencyMax;
}
//-----------------------------------------------------------------------
void PUParticle3DSineForceAffector::setFrequencyMax(const float frequencyMax)
{
    _frequencyMax = frequencyMax;
    _frequency = frequencyMax;
}
//-----------------------------------------------------------------------

void PUParticle3DSineForceAffector::updatePUAffector( PUParticle3D *particle, float deltaTime )
{
    //for (auto iter : _particleSystem->getParticles())
    {
        //PUParticle3D *particle = iter;
        // Affect the direction
        if (_forceApplication == FA_ADD)
        {
            particle->direction += _scaledVector;
        }
        else
        {
            particle->direction = (particle->direction + _forceVector) / 2;
        }
    }
}

PUParticle3DSineForceAffector* PUParticle3DSineForceAffector::create()
{
    auto psfa = new (std::nothrow) PUParticle3DSineForceAffector();
    psfa->autorelease();
    return psfa;
}

NS_CC_END