axmol/extensions/Particle3D/ParticleUniverse/ParticleAffectors/CCPUParticle3DTextureRotator.cpp

/****************************************************************************
 Copyright (c) 2014 Chukong Technologies Inc.
 
 http://www.cocos2d-x.org
 
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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.
 
 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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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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 ****************************************************************************/

#include "CCPUParticle3DTextureRotator.h"
#include "Particle3D/ParticleUniverse/CCPUParticleSystem3D.h"

NS_CC_BEGIN
// Constants
const bool PUParticle3DTextureRotator::DEFAULT_USE_OWN_SPEED = false;
const float PUParticle3DTextureRotator::DEFAULT_ROTATION_SPEED = 10.0f;
const float PUParticle3DTextureRotator::DEFAULT_ROTATION = 0.0f;

//-----------------------------------------------------------------------
PUParticle3DTextureRotator::PUParticle3DTextureRotator(void) : 
    PUParticle3DAffector(),
    _useOwnRotationSpeed(DEFAULT_USE_OWN_SPEED),
    _scaledRotationSpeed(0.0f),
    _twoPiRad(float(2.0 * M_PI))
{
    _dynRotation = new PUDynamicAttributeFixed();
    (static_cast<PUDynamicAttributeFixed*>(_dynRotation))->setValue(DEFAULT_ROTATION);
    _dynRotationSpeed = new PUDynamicAttributeFixed();
    (static_cast<PUDynamicAttributeFixed*>(_dynRotationSpeed))->setValue(DEFAULT_ROTATION_SPEED);
}
//-----------------------------------------------------------------------
PUParticle3DTextureRotator::~PUParticle3DTextureRotator(void)
{
    if (_dynRotation)
    {
        CC_SAFE_DELETE(_dynRotation);
    }

    if (_dynRotationSpeed)
    {
        CC_SAFE_DELETE(_dynRotationSpeed);
    }
}
//-----------------------------------------------------------------------
bool PUParticle3DTextureRotator::useOwnRotationSpeed (void) const
{
    return _useOwnRotationSpeed;
}
//-----------------------------------------------------------------------
void PUParticle3DTextureRotator::setUseOwnRotationSpeed (bool useOwnRotationSpeed)
{
    _useOwnRotationSpeed = useOwnRotationSpeed;
}
//-----------------------------------------------------------------------
PUDynamicAttribute* PUParticle3DTextureRotator::getRotation(void) const
{
    return _dynRotation;
}
//-----------------------------------------------------------------------
void PUParticle3DTextureRotator::setRotation(PUDynamicAttribute* dynRotation)
{
    if (_dynRotation)
        CC_SAFE_DELETE(_dynRotation);

    _dynRotation = dynRotation;
}
//-----------------------------------------------------------------------
PUDynamicAttribute* PUParticle3DTextureRotator::getRotationSpeed(void) const
{
    return _dynRotationSpeed;
}
//-----------------------------------------------------------------------
void PUParticle3DTextureRotator::setRotationSpeed(PUDynamicAttribute* dynRotationSpeed)
{
    if (_dynRotationSpeed)
        CC_SAFE_DELETE(_dynRotationSpeed);

    _dynRotationSpeed = dynRotationSpeed;
}
//-----------------------------------------------------------------------
float PUParticle3DTextureRotator::calculateRotation(void)
{
    return _dynamicAttributeHelper.calculate(_dynRotation, (static_cast<PUParticleSystem3D *>(_particleSystem))->getTimeElapsedSinceStart());
}
//-----------------------------------------------------------------------
float PUParticle3DTextureRotator::calculateRotationSpeed(PUParticle3D* particle)
{
    return _dynamicAttributeHelper.calculate(_dynRotationSpeed, particle->timeFraction);
}
//-----------------------------------------------------------------------
void PUParticle3DTextureRotator::initParticleForEmission(PUParticle3D* particle)
{
    //// Only continue if the particle is a visual particle
    //if (particle->particleType != PUParticle3D::PT_VISUAL)
    //	return;

    // Set initial random zRotation
    particle->zRotation = calculateRotation();
    //FIXME
    //if (particle->parentEmitter->getParentTechnique()->getRenderer())
    //{
    //	// Assume that all parents exist. That must be the case otherwise particles are not emitted.
    //	particle->parentEmitter->getParentTechnique()->getRenderer()->_notifyParticleZRotated();
    //}

    // Set the zRotationSpeed
    particle->zRotationSpeed = calculateRotationSpeed(particle);
}
//-----------------------------------------------------------------------

void PUParticle3DTextureRotator::updatePUAffector( PUParticle3D *particle, float deltaTime )
{
    //for (auto iter : _particleSystem->getParticles())
    {
        //PUParticle3D *particle = iter;
        //// Only continue if the particle is a visual particle
        //if (particle->particleType != PUParticle3D::PT_VISUAL)
        //	return;

        if (_useOwnRotationSpeed)
        {
            // Use scaled rotationspeed and adjust the speed according to the velocity
            _scaledRotationSpeed = particle->zRotationSpeed * deltaTime;
        }
        else
        {
            // Scale speed
            _scaledRotationSpeed = calculateRotationSpeed(particle) * deltaTime;
        }

        particle->zRotation += _scaledRotationSpeed;
        particle->zRotation = particle->zRotation > _twoPiRad ? particle->zRotation - _twoPiRad : particle->zRotation;

        //FIXME
        //if (particleTechnique->getRenderer())
        //{
        //	particleTechnique->getRenderer()->_notifyParticleZRotated();
        //}
    }
}

PUParticle3DTextureRotator* PUParticle3DTextureRotator::create()
{
    auto ptr = new PUParticle3DTextureRotator();
    ptr->autorelease();
    return ptr;
}

void PUParticle3DTextureRotator::copyAttributesTo( PUParticle3DAffector* affector )
{
    PUParticle3DAffector::copyAttributesTo(affector);

    PUParticle3DTextureRotator* textureRotator = static_cast<PUParticle3DTextureRotator*>(affector);
    textureRotator->setRotation(getRotation()->clone());
    textureRotator->setRotationSpeed(getRotationSpeed()->clone());
    textureRotator->_useOwnRotationSpeed = _useOwnRotationSpeed;
}

NS_CC_END