axmol/extensions/Particle3D/PU/CCPUCollisionAvoidanceAffector.cpp

/****************************************************************************
 Copyright (C) 2013 Henry van Merode. All rights reserved.
 Copyright (c) 2015-2016 Chukong Technologies Inc.
 Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
 
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 of this software and associated documentation files (the "Software"), to deal
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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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#include "CCPUCollisionAvoidanceAffector.h"
#include "extensions/Particle3D/PU/CCPUParticleSystem3D.h"

NS_CC_BEGIN
// Constants
const float PUCollisionAvoidanceAffector::DEFAULT_RADIUS = 100.0f;

//-----------------------------------------------------------------------
PUCollisionAvoidanceAffector::PUCollisionAvoidanceAffector() : 
    PUAffector(),
    _radius(DEFAULT_RADIUS)
{
}
PUCollisionAvoidanceAffector::~PUCollisionAvoidanceAffector()
{

}
//-----------------------------------------------------------------------
float PUCollisionAvoidanceAffector::getRadius() const
{
    return _radius;
}
//-----------------------------------------------------------------------
void PUCollisionAvoidanceAffector::setRadius(float radius)
{
    _radius = radius;
}
//-----------------------------------------------------------------------
void PUCollisionAvoidanceAffector::updatePUAffector( PUParticle3D* /*particle*/, float /*deltaTime*/ )
{
    CCASSERT(0, "nonsupport yet");
    //for (auto iter : _particleSystem->getParticles())
    //{
    //	PUParticle3D *particle = iter;
    //	// Activate spatial hashing
    //	particleTechnique->setSpatialHashingUsed(true);

    //	// Determine neighbouring particles.
    //	SpatialHashTable<Particle*>* hashtable = particleTechnique->getSpatialHashTable();
    //	if (hashtable)
    //	{
    //		SpatialHashTable<Particle*>::HashTableCell cell = hashtable->getCell(particle->position);
    //		if (cell.empty())
    //			return;

    //		unsigned int size = static_cast<unsigned int>(cell.size());
    //		Vector3 displacement = Vector3::ZERO;
    //		Vector3 diff = Vector3::ZERO;
    //		for (unsigned int i = 0; i < size; ++i)
    //		{
    //			Particle* p = cell[i];

    //			// Don't check if it is the same particle
    //			if (particle != p)
    //			{
    //				// Validate whether the neighbouring particle is within range
    //				diff = p->position - particle->position;
    //				if (diff.length() < _radius)
    //				{
    //					displacement -= diff;
    //				}
    //			}
    //		}
    //		particle->direction += displacement * deltaTime;
    //	}

    //	// Deactivate spatial hashing
    //	particleTechnique->setSpatialHashingUsed(false);
    //}

}

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

void PUCollisionAvoidanceAffector::copyAttributesTo( PUAffector* affector )
{
    PUAffector::copyAttributesTo(affector);
    PUCollisionAvoidanceAffector* collisionAvoidanceAffector = static_cast<PUCollisionAvoidanceAffector*>(affector);
    collisionAvoidanceAffector->_radius = _radius;
}

NS_CC_END