axmol/extensions/Particle3D/ParticleUniverse/ParticleAffectors/CCPUParticle3DAlignAffector.cpp

/****************************************************************************
 Copyright (C) 2013 Henry van Merode. All rights reserved.
 Copyright (c) 2015 Chukong Technologies Inc.
 
 http://www.cocos2d-x.org
 
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 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.
 
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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#include "CCPUParticle3DAlignAffector.h"
#include "extensions/Particle3D/ParticleUniverse/CCPUParticleSystem3D.h"

NS_CC_BEGIN

// Constants
const bool PUParticle3DAlignAffector::DEFAULT_RESIZE = false;
    
//-----------------------------------------------------------------------
PUParticle3DAlignAffector::PUParticle3DAlignAffector() 
    : PUParticle3DAffector()
    , _resize(DEFAULT_RESIZE)
{
}

PUParticle3DAlignAffector::~PUParticle3DAlignAffector()
{
}

bool PUParticle3DAlignAffector::isResize() const
{
    return _resize;
}

void PUParticle3DAlignAffector::setResize(bool resize)
{
    _resize = resize;
}

void PUParticle3DAlignAffector::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 PUParticle3DAlignAffector::firstParticleUpdate( PUParticle3D *particle, float deltaTime )
{
    _previousParticle = particle;
}

PUParticle3DAlignAffector* PUParticle3DAlignAffector::create()
{
    auto paa = new (std::nothrow) PUParticle3DAlignAffector();
    paa->autorelease();
    return paa;
}

NS_CC_END