axmol/extensions/Particle3D/ParticleUniverse/ParticleAffectors/CCPUParticle3DGeometryRotator.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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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 ****************************************************************************/

#include "CCPUParticle3DGeometryRotator.h"
#include "extensions/Particle3D/ParticleUniverse/CCPUParticleSystem3D.h"

NS_CC_BEGIN
//-----------------------------------------------------------------------
// Constants
const bool PUParticle3DGeometryRotator::DEFAULT_USE_OWN = false;
const float PUParticle3DGeometryRotator::DEFAULT_ROTATION_SPEED = 10.0f;
const Vec3 PUParticle3DGeometryRotator::DEFAULT_ROTATION_AXIS(0, 0, 0);

//-----------------------------------------------------------------------
PUParticle3DGeometryRotator::PUParticle3DGeometryRotator() : 
    PUParticle3DAffector(),
    _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);
};
//-----------------------------------------------------------------------
PUParticle3DGeometryRotator::~PUParticle3DGeometryRotator()
{
    if (_dynRotationSpeed)
        CC_SAFE_DELETE(_dynRotationSpeed);
}
//-----------------------------------------------------------------------
const Vec3& PUParticle3DGeometryRotator::getRotationAxis() const
{
    return _rotationAxis;
}
//-----------------------------------------------------------------------
void PUParticle3DGeometryRotator::setRotationAxis(const Vec3& rotationAxis)
{
    _rotationAxis = rotationAxis;
    _rotationAxisSet = true;
}
//-----------------------------------------------------------------------
void PUParticle3DGeometryRotator::resetRotationAxis(void)
{
    _dynRotationSpeed = new (std::nothrow) PUDynamicAttributeFixed();
    (static_cast<PUDynamicAttributeFixed*>(_dynRotationSpeed))->setValue(DEFAULT_ROTATION_SPEED);
    _rotationAxisSet = false;
}
//-----------------------------------------------------------------------
PUDynamicAttribute* PUParticle3DGeometryRotator::getRotationSpeed(void) const
{
    return _dynRotationSpeed;
}
//-----------------------------------------------------------------------
void PUParticle3DGeometryRotator::setRotationSpeed(PUDynamicAttribute* dynRotationSpeed)
{
    if (_dynRotationSpeed)
        CC_SAFE_DELETE(_dynRotationSpeed);
    _dynRotationSpeed = dynRotationSpeed;
}
//-----------------------------------------------------------------------
bool PUParticle3DGeometryRotator::useOwnRotationSpeed (void) const
{
    return _useOwnRotationSpeed;
}
//-----------------------------------------------------------------------
void PUParticle3DGeometryRotator::setUseOwnRotationSpeed (bool useOwnRotationSpeed)
{
    _useOwnRotationSpeed = useOwnRotationSpeed;
}
//-----------------------------------------------------------------------
float PUParticle3DGeometryRotator::calculateRotationSpeed(PUParticle3D* particle)
{
    return _dynamicAttributeHelper.calculate(_dynRotationSpeed, particle->timeFraction);
}
//-----------------------------------------------------------------------
void PUParticle3DGeometryRotator::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 PUParticle3DGeometryRotator::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;
    }
}

PUParticle3DGeometryRotator* PUParticle3DGeometryRotator::create()
{
    auto pgr = new (std::nothrow) PUParticle3DGeometryRotator();
    pgr->autorelease();
    return pgr;
}

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

NS_CC_END