mirror of https://github.com/axmolengine/axmol.git
245 lines
7.8 KiB
C++
245 lines
7.8 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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#ifndef __CC_PU_PARTICLE_3D_OBSERVER_H__
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#define __CC_PU_PARTICLE_3D_OBSERVER_H__
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#include "base/CCRef.h"
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#include "math/CCMath.h"
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#include "extensions/Particle3D/PU/CCPUParticleSystem3D.h"
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#include <vector>
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#include <string>
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NS_CC_BEGIN
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struct PUParticle3D;
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class PUParticleSystem3D;
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class PUEventHandler;
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enum PUComparisionOperator
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{
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CO_LESS_THAN,
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CO_EQUALS,
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CO_GREATER_THAN
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};
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class CC_DLL PUObserver : public Ref
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{
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friend class PUParticleSystem3D;
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public:
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// Default values
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static const bool DEFAULT_ENABLED;
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static const PUParticle3D::ParticleType DEFAULT_PARTICLE_TYPE;
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static const float DEFAULT_INTERVAL;
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static const bool DEFAULT_UNTIL_EVENT;
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typedef std::vector<PUEventHandler*>::iterator ParticleEventHandlerIterator;
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typedef std::vector<PUEventHandler*>::const_iterator ParticleEventHandlerConstIterator;
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typedef std::vector<PUEventHandler*> ParticleEventHandlerList;
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/** Todo
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*/
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const std::string& getObserverType() const {return _observerType;};
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void setObserverType(const std::string& observerType) {_observerType = observerType;};
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/** Todo
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*/
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virtual bool isEnabled() const;
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/** Returns the 'enabled' value that was set in setEnabled() and not altered during execution.
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*/
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bool _getOriginalEnabled() const;
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/** Todo
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*/
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virtual void setEnabled(bool enabled);
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/** Reset internal values for 'enabled'. This means that both the mEnabled and mOriginalEnabled can be set again using setEnabled.
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@remarks
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Using _resetEnabled() makes it possible to use setEnabled() without the restriction of having a fixed mOriginalEnabled value.
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*/
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void _resetEnabled();
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///** Todo
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//*/
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//PUParticleSystem3D* getParentSystem() const {return mParentTechnique;};
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//void setParentSystem(PUParticleSystem3D* parentTechnique){mParentTechnique = parentTechnique;};
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/** Todo
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*/
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const std::string& getName() const {return _name;};
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void setName(const std::string& name) {_name = name;};
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/** Todo
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*/
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const PUParticle3D::ParticleType& getParticleTypeToObserve() const {return _particleTypeToObserve;};
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void setParticleTypeToObserve(const PUParticle3D::ParticleType particleTypeToObserve);
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virtual void notifyStart ();
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virtual void notifyStop (){/* Do nothing */};
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virtual void notifyRescaled(const Vec3& scale);
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virtual void preUpdateObserver(float deltaTime);
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virtual void updateObserver(PUParticle3D *particle, float deltaTime, bool firstParticle);
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virtual void postUpdateObserver(float deltaTime);
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virtual void firstParticleUpdate(PUParticle3D *particle, float deltaTime);
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/** This function determines whether a condition (the event) is true or false.
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*/
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virtual bool observe (PUParticle3D* particle, float timeElapsed) = 0;
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/** Todo
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*/
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PUEventHandler* createEventHandler(const std::string& eventHandlerType);
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/** Todo
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*/
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void addEventHandler(PUEventHandler* eventHandler);
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/** Todo
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*/
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void removeEventHandler(PUEventHandler* eventHandler);
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/** Todo
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*/
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PUEventHandler* getEventHandler (size_t index) const;
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/** Todo
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*/
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PUEventHandler* getEventHandler (const std::string& eventHandlerName) const;
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/** Todo
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*/
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size_t getNumEventHandlers () const;
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/** Todo
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*/
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void destroyEventHandler(PUEventHandler* eventHandler);
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/** Todo
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*/
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void destroyEventHandler (size_t index);
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/** Todo
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*/
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void destroyAllEventHandlers ();
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/** Return the interval value, which defines at what interval the observer is called.
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*/
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float getObserverInterval() const;
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/** Set the interval value, which defines at what interval the observer is called.
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*/
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void setObserverInterval(float observerInterval);
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/** Return the value of mObserveUntilEvent.
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*/
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bool getObserveUntilEvent() const;
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/** Sets the value of mObserveUntilEvent. This value determines whether observation must be continued
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after an event occurred and the event handlers are called.
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*/
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void setObserveUntilEvent(bool observeUntilEvent);
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/** Returns true if the particle type to observe specifically has been set.
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*/
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bool isParticleTypeToObserveSet() const;
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virtual void copyAttributesTo (PUObserver* observer);
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CC_CONSTRUCTOR_ACCESS:
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PUObserver();
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virtual ~PUObserver();
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protected:
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PUParticleSystem3D* _particleSystem;
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// Type of observer
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std::string _observerType;
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// Name of the observer (optional)
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std::string _name;
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/** Determines whether an observer is activated.
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*/
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bool _enabled;
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bool _originalEnabled;
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bool _originalEnabledSet;
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/** Determines whether the _observe() function must be executed.
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@remarks
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This is independent of mEnabled, which means that an observer can be enabled, but if mObserve has
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been set to false, it still doesn't observe. It is used to enable/disable execution of the _observe()
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function in combination with the update interval.
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*/
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bool _observe;
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/** Observes until an event takes place. If the event occurs, the event handlers are called and after that
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the observer doesn't observe anymore.
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*/
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bool _observeUntilEvent;
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/** Flag that is set if the event handler(s) are called at least once.
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*/
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bool _eventHandlersExecuted;
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/** Although the scale is on a Particle System level, the observer can also be scaled.
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*/
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Vec3 _observerScale;
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// Particle type to be observed. Default is that all particles are observed.
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PUParticle3D::ParticleType _particleTypeToObserve;
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/** Determines whether mParticleTypeToObserve is set. If true only that particles of the specified type
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are observed. If false (= default), all particles are observed.
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*/
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bool _particleTypeToObserveSet;
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// List with EventHandlers, which will be triggered if the condition that this observer validates occurs.
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ParticleEventHandlerList _eventHandlers;
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/** Values that determine that the observer is called after every interval.
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*/
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float _observerInterval;
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float _observerIntervalRemainder;
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bool _observerIntervalSet;
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/** Handle the observer implementation.
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*/
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virtual void handleObserve (PUParticle3D* particle, float timeElapsed);
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/** Handle the event.
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@remarks
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This function iterates over all at the observer registered handlers and executes them.
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*/
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virtual void handleEvent (PUParticle3D* particle, float timeElapsed);
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};
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NS_CC_END
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#endif
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