axmol/extensions/Particle3D/ParticleUniverse/ParticleAffectors/CCPUParticle3DGeometryRotator.cpp

/****************************************************************************
 Copyright (c) 2015 Chukong Technologies Inc.
 
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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