mirror of https://github.com/axmolengine/axmol.git
126 lines
5.2 KiB
C++
126 lines
5.2 KiB
C++
/****************************************************************************
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Copyright (C) 2013 Henry van Merode. All rights reserved.
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Copyright (c) 2015-2016 Chukong Technologies Inc.
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Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
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http://www.cocos2d-x.org
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#include "CCPUScaleVelocityAffector.h"
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#include "extensions/Particle3D/PU/CCPUParticleSystem3D.h"
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NS_CC_BEGIN
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// Constants
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const float PUScaleVelocityAffector::DEFAULT_VELOCITY_SCALE = 1.0f;
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//-----------------------------------------------------------------------
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PUScaleVelocityAffector::PUScaleVelocityAffector() :
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PUAffector(),
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_sinceStartSystem(false),
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_stopAtFlip(false)
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{
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_dynScaleVelocity = new (std::nothrow) PUDynamicAttributeFixed();
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(static_cast<PUDynamicAttributeFixed*>(_dynScaleVelocity))->setValue(DEFAULT_VELOCITY_SCALE);
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}
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//-----------------------------------------------------------------------
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PUScaleVelocityAffector::~PUScaleVelocityAffector()
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{
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if (_dynScaleVelocity)
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{
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CC_SAFE_DELETE(_dynScaleVelocity);
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}
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}
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//-----------------------------------------------------------------------
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void PUScaleVelocityAffector::updatePUAffector( PUParticle3D *particle, float deltaTime )
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{
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//for (auto iter : _particleSystem->getParticles())
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{
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// PUParticle3D *particle = iter;
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float ds = 0;
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if (_sinceStartSystem)
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{
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// If control points are used (curved type), the first value of each control point is seconds from the start of the system
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ds = deltaTime * _dynamicAttributeHelper.calculate(_dynScaleVelocity, (static_cast<PUParticleSystem3D *>(_particleSystem))->getTimeElapsedSinceStart());
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}
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else
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{
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// If control points are used (curved type), the first value of each control point is the fraction of the particle lifetime [0..1]
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ds = deltaTime * _dynamicAttributeHelper.calculate(_dynScaleVelocity, particle->timeFraction);
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}
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float length = particle->direction.length(); // Use length for a better delta direction value
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Vec3 calculated = particle->direction;
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calculated.x += ds * (particle->direction.x / length);
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calculated.y += ds * (particle->direction.y / length);
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calculated.z += ds * (particle->direction.z / length);
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if (_stopAtFlip)
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{
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if ((calculated.x > 0.0f && particle->direction.x < 0.0f) ||
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(calculated.y > 0.0f && particle->direction.y < 0.0f) ||
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(calculated.z > 0.0f && particle->direction.z < 0.0f) ||
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(calculated.x < 0.0f && particle->direction.x > 0.0f) ||
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(calculated.y < 0.0f && particle->direction.y > 0.0f) ||
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(calculated.z < 0.0f && particle->direction.z > 0.0f))
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return;
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}
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particle->direction = calculated;
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}
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}
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//-----------------------------------------------------------------------
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void PUScaleVelocityAffector::setDynScaleVelocity(PUDynamicAttribute* dynScaleVelocity)
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{
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if (_dynScaleVelocity)
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CC_SAFE_DELETE(_dynScaleVelocity);
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_dynScaleVelocity = dynScaleVelocity;
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}
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//-----------------------------------------------------------------------
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void PUScaleVelocityAffector::resetDynScaleVelocity(bool resetToDefault)
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{
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if (resetToDefault)
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{
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CC_SAFE_DELETE(_dynScaleVelocity);
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_dynScaleVelocity = new (std::nothrow) PUDynamicAttributeFixed();
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(static_cast<PUDynamicAttributeFixed*>(_dynScaleVelocity))->setValue(DEFAULT_VELOCITY_SCALE);
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}
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}
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PUScaleVelocityAffector* PUScaleVelocityAffector::create()
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{
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auto psva = new (std::nothrow) PUScaleVelocityAffector();
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psva->autorelease();
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return psva;
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}
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void PUScaleVelocityAffector::copyAttributesTo( PUAffector* affector )
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{
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PUAffector::copyAttributesTo(affector);
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PUScaleVelocityAffector* scaleVelocityAffector = static_cast<PUScaleVelocityAffector*>(affector);
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scaleVelocityAffector->setDynScaleVelocity(getDynScaleVelocity()->clone());
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scaleVelocityAffector->_sinceStartSystem = _sinceStartSystem;
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scaleVelocityAffector->_stopAtFlip = _stopAtFlip;
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}
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NS_CC_END
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