India/cocos2d-x/extensions/Particle3D/PU/CCPUDoAffectorEventHandler.h

/****************************************************************************
 Copyright (C) 2013 Henry van Merode. All rights reserved.
 Copyright (c) 2015-2016 Chukong Technologies Inc.
 Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
 
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#ifndef __CC_PU_PARTICLE_3D_DO_AFFECTOR_EVENT_HANDLER_H__
#define __CC_PU_PARTICLE_3D_DO_AFFECTOR_EVENT_HANDLER_H__

#include "base/CCRef.h"
#include "math/CCMath.h"
#include "extensions/Particle3D/PU/CCPUEventHandler.h"
#include <vector>
#include <string>

NS_CC_BEGIN

struct PUParticle3D;
class PUObserver;
class PUParticleSystem3D;

class CC_DLL PUDoAffectorEventHandler : public PUEventHandler
{
public:
    // Constants
    static const bool DEFAULT_PRE_POST;

    static PUDoAffectorEventHandler* create();

    /** Get the indication whether pre- and postprocessing must be done.
    */
    bool getPrePost() const {return _prePost;};

    /** Set the indication whether pre- and postprocessing must be done.
    */
    void setPrePost(const bool prePost){_prePost = prePost;};

    /** Get the name of the affector that must be enabled or disabled.
    */
    const std::string& getAffectorName(void) const {return _affectorName;};

    /** Set the name of the affector.
    */
    void setAffectorName(const std::string& affectorName){_affectorName = affectorName;};

    /** If the _handle() function of this class is invoked (by an Observer), it searches the 
        ParticleAffector defined by the its name. 
        The ParticleAffector is either part of the ParticleTechnique in which the 
        DoAffectorEventHandler is defined, or if the Affector is not found, other 
        ParticleTechniques are searched.
    */
    virtual void handle (PUParticleSystem3D* particleSystem, PUParticle3D* particle, float timeElapsed) override;

    virtual void copyAttributesTo (PUEventHandler* eventHandler) override;

CC_CONSTRUCTOR_ACCESS:
    PUDoAffectorEventHandler(void);
    virtual ~PUDoAffectorEventHandler(void) {};

protected:
    // Identifies the name of affector
    std::string _affectorName;

    // Determines whether the pre- and post processing activities must be executed also
    bool _prePost;
};

NS_CC_END

#endif