axmol/extensions/Particle3D/PU/CCPUForceFieldAffector.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_FORCE_FIELD_AFFECTOR_H__
#define __CC_PU_PARTICLE_3D_FORCE_FIELD_AFFECTOR_H__

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

NS_CC_BEGIN

class CC_EX_DLL PUForceFieldAffector : public PUAffector
{
public:
    // Constants
    static const PUForceField::ForceFieldType DEFAULT_FORCEFIELD_TYPE;
    static const float DEFAULT_DELTA;
    static const float DEFAULT_FORCE;
    static const unsigned short DEFAULT_OCTAVES;
    static const double DEFAULT_FREQUENCY;
    static const double DEFAULT_AMPLITUDE;
    static const double DEFAULT_PERSISTENCE;
    static const unsigned int DEFAULT_FORCEFIELDSIZE;
    static const Vec3 DEFAULT_WORLDSIZE;
    static const Vec3 DEFAULT_MOVEMENT;
    static const float DEFAULT_MOVEMENT_FREQUENCY;

    static PUForceFieldAffector* create();

    virtual void notifyStart() override;
    virtual void preUpdateAffector(float deltaTime) override;
    virtual void updatePUAffector(PUParticle3D* particle, float deltaTime) override;
    virtual void prepare() override;

    /** Get/Set Forcefield type
     */
    PUForceField::ForceFieldType getForceFieldType() const;
    void setForceFieldType(const PUForceField::ForceFieldType forceFieldType);

    /** Get/Set Delta
     */
    float getDelta() const;
    void setDelta(float delta);

    /** Get/Set scale Force
     */
    float getScaleForce() const;
    void setScaleForce(float scaleForce);

    /** Get/Set scale Octaves
     */
    unsigned short getOctaves() const;
    void setOctaves(unsigned short octaves);

    /** Get/Set scale Frequency
     */
    double getFrequency() const;
    void setFrequency(double frequency);

    /** Get/Set scale Amplitude
     */
    double getAmplitude() const;
    void setAmplitude(double amplitude);

    /** Get/Set scale Persistence
     */
    double getPersistence() const;
    void setPersistence(double persistence);

    /** Get/Set scale ForceFieldSize
     */
    unsigned int getForceFieldSize() const;
    void setForceFieldSize(unsigned int forceFieldSize);

    /** Get/Set scale worldSize
     */
    Vec3 getWorldSize() const;
    void setWorldSize(const Vec3& worldSize);

    /** Get/Set scale flip attributes
     */
    bool getIgnoreNegativeX() const;
    void setIgnoreNegativeX(bool ignoreNegativeX);
    bool getIgnoreNegativeY() const;
    void setIgnoreNegativeY(bool ignoreNegativeY);
    bool getIgnoreNegativeZ() const;
    void setIgnoreNegativeZ(bool ignoreNegativeZ);

    /** Get/Set Movement
    @remarks
        The movement vector determines the position of the movement. This movement is a displacement of the particle
    position mapped to the forcefield.
    */
    const Vec3& getMovement() const;
    void setMovement(const Vec3& movement);

    /** Get/Set Movement frequency
     */
    float getMovementFrequency() const;
    void setMovementFrequency(float movementFrequency);

    /** Suppress (re)generation of the forcefield everytime an attribute is changed.
     */
    void suppressGeneration(bool suppress);

    virtual void copyAttributesTo(PUAffector* affector) override;

    PUForceFieldAffector();
    ~PUForceFieldAffector();

protected:
    PUForceField _forceField;                      // Local force field
    PUForceField::ForceFieldType _forceFieldType;  // Type of force field
    float _delta;                                  // Radius of particle position
    Vec3 _force;              // Force value that is used to calculate the force and reused for all particles
    float _scaleForce;        // Scaling factor used in calculation of the direction vector of the particle
    unsigned short _octaves;  // Used in noise generation
    double _frequency;        // Used in noise generation
    double _amplitude;        // Used in noise generation
    double _persistence;      // Used in noise generation
    unsigned int
        _forceFieldSize;    // The real size of the force field (is a unit cube in case of a 'realtime' force field type
    Vec3 _worldSize;        // Size of the force field in world coordinates (can be non-cubic)
    bool _prepared;         // Determines whether the force field is generated
    bool _ignoreNegativeX;  // X-force is never negative
    bool _ignoreNegativeY;  // Y-force is never negative
    bool _ignoreNegativeZ;  // Z-force is never negative
    Vec3 _movement;         // The direction to which the forcefield moves
    bool _movementSet;      // Is true if the movement is set
    float _movementFrequency;  // Speed of movement
    float _movementFrequencyCount;
    Vec3 _displacement;
    Vec3 _basePosition;
    bool _suppressGeneration;  // Prevents re-generation of the complete forcefield after a change.
};
NS_CC_END

#endif