axmol/extensions/Particle3D/PU/CCPUGeometryRotator.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_GEOMETRY_ROTATOR_H__
#define __CC_PU_PARTICLE_3D_GEOMETRY_ROTATOR_H__

#include "extensions/Particle3D/PU/CCPUAffector.h"
#include "extensions/Particle3D/PU/CCPUDynamicAttribute.h"

NS_CC_BEGIN
struct PUParticle3D;
class  CC_DLL PUGeometryRotator : public PUAffector
{
public:
    // Constants
    static const bool DEFAULT_USE_OWN;
    static const float DEFAULT_ROTATION_SPEED;
    static const Vec3 DEFAULT_ROTATION_AXIS;

    static PUGeometryRotator* create();

    virtual void updatePUAffector(PUParticle3D *particle, float deltaTime) override;
    /** @copydoc ParticleAffector::_initParticleForEmission */
    virtual void initParticleForEmission(PUParticle3D* particle) override;

    /** Returns the rotation speed. This is the speed controlled by the affector. Besides
        the default rotation speed, it is also possible to use the particles own rotation speed.
    */
    PUDynamicAttribute* getRotationSpeed(void) const;

    /** 
    */
    void setRotationSpeed(PUDynamicAttribute* dynRotationSpeed);

    /** Returns an indication whether the rotation speed is the same for all particles in this 
        particle technique, or whether the rotation speed of the particle itself is used.
    */
    bool useOwnRotationSpeed (void) const;

    /** Set the indication whether rotation speed of the particle itself is used.
    */
    void setUseOwnRotationSpeed (bool _useOwnRotationSpeed);

    /** 
    */
    const Vec3& getRotationAxis(void) const;

    /** 
    */
    void setRotationAxis(const Vec3& rotationAxis);

    /** 
    */
    void resetRotationAxis(void);

    virtual void copyAttributesTo (PUAffector* affector) override;

CC_CONSTRUCTOR_ACCESS:
    PUGeometryRotator();
    virtual ~PUGeometryRotator();

protected:

    /** Returns a rotation speed value, depending on the type of dynamic attribute.
    */
    float calculateRotationSpeed (PUParticle3D* particle);

protected:

    float _scaledRotationSpeed;
    bool _useOwnRotationSpeed;
    PUDynamicAttribute* _dynRotationSpeed;
    Quaternion _q;
    Vec3 _rotationAxis;
    bool _rotationAxisSet;

    /** Helper factory
    */
    PUDynamicAttributeHelper _dynamicAttributeHelper;
};
NS_CC_END

#endif