/**************************************************************************** Copyright (C) 2013 Henry van Merode. All rights reserved. Copyright (c) 2015 Chukong Technologies Inc. http://www.cocos2d-x.org Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: 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, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ****************************************************************************/ #include "extensions/Particle3D/PU/CCPUAffector.h" #include "extensions/Particle3D/PU/CCPUEmitter.h" #include "extensions/Particle3D/PU/CCPUParticleSystem3D.h" NS_CC_BEGIN PUAffector::PUAffector() : _affectorScale(Vec3::ONE) , _affectSpecialisation(AFSP_DEFAULT) , _mass(1.0f) { } PUAffector::~PUAffector() { _particleSystem = nullptr; } void PUAffector::updatePUAffector(PUParticle3D* particle, float delta) { } const Vec3& PUAffector::getDerivedPosition() { PUParticleSystem3D *ps = static_cast(_particleSystem); if (ps){ Mat4 rotMat; Mat4::createRotation(ps->getDerivedOrientation(), &rotMat); _derivedPosition = ps->getDerivedPosition() + rotMat * Vec3(_position.x * _affectorScale.x, _position.y * _affectorScale.y, _position.z * _affectorScale.z); //_particleSystem->getNodeToWorldTransform().transformPoint(_position, &_derivedPosition); } else _derivedPosition = _position; return _derivedPosition; //if (mMarkedForEmission) //{ // // Use the affector position, because it is emitted // // If a particle is emitted, position and derived position are the same // _derivedPosition = position; //} //else //{ // // Add the techniques' derived position // _derivedPosition = mParentTechnique->getDerivedPosition() + // mParentTechnique->getParentSystem()->getDerivedOrientation() * (_mAffectorScale * position); //} //return _derivedPosition; } float PUAffector::calculateAffectSpecialisationFactor( const PUParticle3D* particle ) { // Assume that particle->totalTimeToLive != 0, which is reasonable switch (_affectSpecialisation) { case AFSP_DEFAULT: return 1.0f; break; // This means that older particles will be affected MORE than just emitted particles case AFSP_TTL_INCREASE: { if (particle) { return particle->timeFraction; } else { return 1.0f; } } break; // This means that older particles will be affected LESS than just emitted particles case AFSP_TTL_DECREASE: { if (particle) { return 1.0f - particle->timeFraction; } else { return 1.0f; } } break; default: return 1.0f; break; } } void PUAffector::notifyStart() { } void PUAffector::notifyStop() { } void PUAffector::notifyPause() { } void PUAffector::notifyResume() { } void PUAffector::preUpdateAffector( float deltaTime ) { } void PUAffector::postUpdateAffector( float deltaTime ) { } void PUAffector::prepare() { } void PUAffector::unPrepare() { } void PUAffector::initParticleForEmission( PUParticle3D* particle ) { } void PUAffector::notifyRescaled(const Vec3& scale) { _affectorScale = scale; } void PUAffector::firstParticleUpdate( PUParticle3D *particle, float deltaTime ) { } void PUAffector::setMass( float mass ) { _mass = mass; } float PUAffector::getMass() const { return _mass; } void PUAffector::copyAttributesTo( PUAffector* affector ) { affector->setName(_name); affector->_isEnabled = _isEnabled; affector->_particleSystem = _particleSystem; affector->_affectorScale = _affectorScale; affector->_affectSpecialisation = _affectSpecialisation; } void PUAffector::addEmitterToExclude( const std::string& emitterName ) { auto iter = std::find(_excludedEmitters.begin(), _excludedEmitters.end(), emitterName); if (iter == _excludedEmitters.end()){ _excludedEmitters.push_back(emitterName); } } void PUAffector::removeEmitterToExclude( const std::string& emitterName ) { auto iter = std::find(_excludedEmitters.begin(), _excludedEmitters.end(), emitterName); if (iter != _excludedEmitters.end()){ _excludedEmitters.erase(iter); } } void PUAffector::process( PUParticle3D* particle, float delta, bool firstParticle ) { if (firstParticle){ firstParticleUpdate(particle, delta); } if (!_excludedEmitters.empty() && particle->parentEmitter){ // Return if the emitter which emits this particle is part of the vector std::string emitterName = particle->parentEmitter->getName(); auto iter = std::find(_excludedEmitters.begin(), _excludedEmitters.end(), emitterName); if (iter != _excludedEmitters.end()) { return; } } updatePUAffector(particle, delta); } NS_CC_END