axmol/extensions/Particle3D/ParticleUniverse/ParticleAffectors/CCPUParticle3DForceFieldAffector.h

/****************************************************************************
 Copyright (C) 2013 Henry van Merode. All rights reserved.
 Copyright (c) 2015 Chukong Technologies Inc.
 
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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/ParticleUniverse/ParticleAffectors/CCPUParticle3DAffector.h"
#include "extensions/Particle3D/ParticleUniverse/CCPUParticle3DForceField.h"

NS_CC_BEGIN

class  CC_DLL PUParticle3DForceFieldAffector : public PUParticle3DAffector
{
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 PUParticle3DForceFieldAffector* 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
    */
    const PUForceField::ForceFieldType getForceFieldType(void) const;
    void setForceFieldType(const PUForceField::ForceFieldType forceFieldType);

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

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

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

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

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

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

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

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

    /** Get/Set scale flip attributes
    */
    bool getIgnoreNegativeX(void) const;
    void setIgnoreNegativeX(bool ignoreNegativeX);
    bool getIgnoreNegativeY(void) const;
    void setIgnoreNegativeY(bool ignoreNegativeY);
    bool getIgnoreNegativeZ(void) 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(void) const;
    void setMovement(const Vec3& movement);

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

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

    virtual void copyAttributesTo (PUParticle3DAffector* affector);

CC_CONSTRUCTOR_ACCESS:
    PUParticle3DForceFieldAffector();
    ~PUParticle3DForceFieldAffector();

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