axmol/extensions/3dparticle/ParticleUniverse/ParticleAffectors/CCPUParticle3DAffector.cpp

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#include "3dparticle/ParticleUniverse/ParticleAffectors/CCPUParticle3DAffector.h"
#include "3dparticle/ParticleUniverse/CCPUParticleSystem3D.h"

NS_CC_BEGIN

PUParticle3DAffector::PUParticle3DAffector()
: _affectorScale(Vec3::ONE)
, _affectSpecialisation(AFSP_DEFAULT)
, _mass(1.0f)
{
    
}

PUParticle3DAffector::~PUParticle3DAffector()
{
    _particleSystem = nullptr;
}

void PUParticle3DAffector::updateAffector(Particle3D *particle, float deltaTime)
{
    updatePUAffector(static_cast<PUParticle3D*>(particle), deltaTime);
}

void PUParticle3DAffector::updatePUAffector(PUParticle3D* particle, float delta)
{
    
}

const Vec3& PUParticle3DAffector::getDerivedPosition()
{
    PUParticleSystem3D *ps = static_cast<PUParticleSystem3D *>(_particleSystem);
    if (ps){
        Mat4 rotMat;
        Mat4::createRotation(ps->getDerivedOrientation(), &rotMat);
        _derivedPosition = ps->getDerivedPosition() + rotMat * Vec3(_position.x * _affectorScale.x, _position.y * _affectorScale.y, _position.z * _affectorScale.z);
        //_particleSystem->getNodeToWorldTransform().transformPoint(_position, &_derivedPosition);
    }
    else
        _derivedPosition = Vec3::ZERO;

    return _derivedPosition;
    //if (mMarkedForEmission)
    //{
    //	// Use the affector position, because it is emitted
    //	// If a particle is emitted, position and derived position are the same
    //	_derivedPosition = position;
    //}
    //else
    //{
    //	// Add the techniques' derived position
    //	_derivedPosition = mParentTechnique->getDerivedPosition() + 
    //		mParentTechnique->getParentSystem()->getDerivedOrientation() * (_mAffectorScale * position);
    //}
    //return _derivedPosition;
    

    ////incorrect result (FIXME)
    //return _position;
}

float PUParticle3DAffector::calculateAffectSpecialisationFactor( const PUParticle3D* particle )
{
    // Assume that particle->totalTimeToLive != 0, which is reasonable
    switch (_affectSpecialisation)
    {
    case AFSP_DEFAULT:
        return 1.0f;
        break;

        // This means that older particles will be affected MORE than just emitted particles
    case AFSP_TTL_INCREASE:
        {
            if (particle)
            {
                return particle->timeFraction;
            }
            else
            {
                return 1.0f;
            }
        }
        break;

        // This means that older particles will be affected LESS than just emitted particles
    case AFSP_TTL_DECREASE:
        {
            if (particle)
            {
                return 1.0f - particle->timeFraction;
            }
            else
            {
                return 1.0f;
            }
        }
        break;

    default:
        return 1.0f;
        break;
    }
}

void PUParticle3DAffector::notifyStart()
{

}

void PUParticle3DAffector::notifyStop()
{

}

void PUParticle3DAffector::notifyPause()
{

}

void PUParticle3DAffector::notifyResume()
{

}

void PUParticle3DAffector::preUpdateAffector( float deltaTime )
{

}

void PUParticle3DAffector::postUpdateAffector( float deltaTime )
{

}

void PUParticle3DAffector::prepare()
{

}

void PUParticle3DAffector::unPrepare()
{

}

void PUParticle3DAffector::initParticleForEmission( PUParticle3D* particle )
{

}

void PUParticle3DAffector::notifyRescaled(const Vec3& scale)
{
    _affectorScale = scale;
}

void PUParticle3DAffector::firstParticleUpdate( PUParticle3D *particle, float deltaTime )
{

}

void PUParticle3DAffector::setMass( float mass )
{
    _mass =  mass;
}

float PUParticle3DAffector::getMass() const
{
    return _mass;
}

NS_CC_END