axmol/extensions/Particle3D/PU/CCPUAlignAffector.cpp

/****************************************************************************
 Copyright (C) 2013 Henry van Merode. All rights reserved.
 Copyright (c) 2015-2017 Chukong Technologies Inc.
 
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 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.
 
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 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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#include "CCPUAlignAffector.h"
#include "extensions/Particle3D/PU/CCPUParticleSystem3D.h"

NS_CC_BEGIN

// Constants
const bool PUAlignAffector::DEFAULT_RESIZE = false;
    
//-----------------------------------------------------------------------
PUAlignAffector::PUAlignAffector() 
    : PUAffector()
    , _resize(DEFAULT_RESIZE)
{
}

PUAlignAffector::~PUAlignAffector()
{
}

bool PUAlignAffector::isResize() const
{
    return _resize;
}

void PUAlignAffector::setResize(bool resize)
{
    _resize = resize;
}

void PUAlignAffector::updatePUAffector( PUParticle3D *particle, float /*deltaTime*/ )
{
    //auto particles = _particleSystem->getParticles();
    //if (!particles.empty())
    {
        //PUParticle3D *preParticle = particles[0];
        //for (unsigned int i = 1; i < particles.size(); ++i)
        {
            //PUParticle3D *particle = particles[i];
            Vec3 diff = _previousParticle->position - particle->position;
            if (_resize)
            {
                particle->setOwnDimensions(particle->width, diff.length(), particle->depth);
            }
            diff.normalize();
            particle->orientation.x = diff.x;
            particle->orientation.y = diff.y;
            particle->orientation.z = diff.z;
            _previousParticle = particle;
        }
    }
}

void PUAlignAffector::firstParticleUpdate( PUParticle3D *particle, float /*deltaTime*/ )
{
    _previousParticle = particle;
}

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

void PUAlignAffector::copyAttributesTo( PUAffector* affector )
{
    PUAffector::copyAttributesTo(affector);

    PUAlignAffector* alignAffector = static_cast<PUAlignAffector*>(affector);
    alignAffector->_resize = _resize;
}

NS_CC_END