axmol/extensions/Particle3D/PU/CCPUGeometryRotator.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.
 
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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#include "CCPUGeometryRotator.h"
#include "extensions/Particle3D/PU/CCPUParticleSystem3D.h"

NS_CC_BEGIN
//-----------------------------------------------------------------------
// Constants
const bool PUGeometryRotator::DEFAULT_USE_OWN = false;
const float PUGeometryRotator::DEFAULT_ROTATION_SPEED = 10.0f;
const Vec3 PUGeometryRotator::DEFAULT_ROTATION_AXIS(0, 0, 0);

//-----------------------------------------------------------------------
PUGeometryRotator::PUGeometryRotator() : 
    PUAffector(),
    _scaledRotationSpeed(0.0f),
    _useOwnRotationSpeed(DEFAULT_USE_OWN),
    //mQ(Quaternion::IDENTITY),
    _rotationAxis(DEFAULT_ROTATION_AXIS),
    _rotationAxisSet(false)
{
    _dynRotationSpeed = new (std::nothrow) PUDynamicAttributeFixed();
    (static_cast<PUDynamicAttributeFixed*>(_dynRotationSpeed))->setValue(DEFAULT_ROTATION_SPEED);
};
//-----------------------------------------------------------------------
PUGeometryRotator::~PUGeometryRotator()
{
    if (_dynRotationSpeed)
        CC_SAFE_DELETE(_dynRotationSpeed);
}
//-----------------------------------------------------------------------
const Vec3& PUGeometryRotator::getRotationAxis() const
{
    return _rotationAxis;
}
//-----------------------------------------------------------------------
void PUGeometryRotator::setRotationAxis(const Vec3& rotationAxis)
{
    _rotationAxis = rotationAxis;
    _rotationAxisSet = true;
}
//-----------------------------------------------------------------------
void PUGeometryRotator::resetRotationAxis(void)
{
    _dynRotationSpeed = new (std::nothrow) PUDynamicAttributeFixed();
    (static_cast<PUDynamicAttributeFixed*>(_dynRotationSpeed))->setValue(DEFAULT_ROTATION_SPEED);
    _rotationAxisSet = false;
}
//-----------------------------------------------------------------------
PUDynamicAttribute* PUGeometryRotator::getRotationSpeed(void) const
{
    return _dynRotationSpeed;
}
//-----------------------------------------------------------------------
void PUGeometryRotator::setRotationSpeed(PUDynamicAttribute* dynRotationSpeed)
{
    if (_dynRotationSpeed)
        CC_SAFE_DELETE(_dynRotationSpeed);
    _dynRotationSpeed = dynRotationSpeed;
}
//-----------------------------------------------------------------------
bool PUGeometryRotator::useOwnRotationSpeed (void) const
{
    return _useOwnRotationSpeed;
}
//-----------------------------------------------------------------------
void PUGeometryRotator::setUseOwnRotationSpeed (bool useOwnRotationSpeed)
{
    _useOwnRotationSpeed = useOwnRotationSpeed;
}
//-----------------------------------------------------------------------
float PUGeometryRotator::calculateRotationSpeed(PUParticle3D* particle)
{
    return _dynamicAttributeHelper.calculate(_dynRotationSpeed, particle->timeFraction);
}
//-----------------------------------------------------------------------
void PUGeometryRotator::initParticleForEmission(PUParticle3D* particle)
{
    //// Only continue if the particle is a visual particle
    //if (particle->particleType != Particle::PT_VISUAL)
    //	return;
    //for (auto iter : _particleSystem->getParticlePool().getActiveParticleList())
    {
        //PUParticle3D *particle = static_cast<PUParticle3D*>(iter);
        if (!_rotationAxisSet)
        {
            // Set initial random rotation axis and orientation(PU 1.4)
            particle->orientation.x = CCRANDOM_MINUS1_1();
            particle->orientation.y = CCRANDOM_MINUS1_1();
            particle->orientation.z = CCRANDOM_MINUS1_1();
            particle->orientation.w = CCRANDOM_MINUS1_1();
            particle->orientation.normalize();
            particle->rotationAxis.x = CCRANDOM_0_1();
            particle->rotationAxis.y = CCRANDOM_0_1();
            particle->rotationAxis.z = CCRANDOM_0_1();
            particle->rotationAxis.normalize();
        }

        if (_useOwnRotationSpeed)
        {
            // Use the rotation speed of the particle itself
            particle->rotationSpeed = calculateRotationSpeed(particle);
        }
    }
}
//-----------------------------------------------------------------------

void PUGeometryRotator::updatePUAffector( PUParticle3D *particle, float deltaTime )
{
    //for (auto iter : _particleSystem->getParticles())
    {
        //PUParticle3D *particle = iter;
        // Rotate the geometry

        if (_useOwnRotationSpeed)
        {
            // Use scaled rotationspeed and adjust the speed according to the velocity
            _scaledRotationSpeed = particle->rotationSpeed * deltaTime;
        }
        else
        {
            // Scale speed (beware that dynamic values don't result in a rotation; use a fixed value instead)
            _scaledRotationSpeed = calculateRotationSpeed(particle) * deltaTime;
        }

        _q.set(0.0f, 0.0f, 0.0f, 1.0f);
        //_q = Quaternion::IDENTITY;
        if (_rotationAxisSet)
        {
            _q.set(_rotationAxis, _scaledRotationSpeed);
            //_q.FromAngleAxis(Radian(_scaledRotationSpeed), _rotationAxis);
        }
        else
        {
            _q.set(particle->rotationAxis, _scaledRotationSpeed);
            //_q.FromAngleAxis(Radian(_scaledRotationSpeed), visualParticle->rotationAxis);
        }

        particle->orientation = _q * particle->orientation;
    }
}

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

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

    PUGeometryRotator* geometryRotator = static_cast<PUGeometryRotator*>(affector);
    geometryRotator->setRotationSpeed(getRotationSpeed()->clone());
    geometryRotator->_useOwnRotationSpeed = _useOwnRotationSpeed;
    geometryRotator->_rotationAxis = _rotationAxis;
    geometryRotator->_rotationAxisSet = _rotationAxisSet;
}

//-----------------------------------------------------------------------

NS_CC_END