axmol/core/2d/CCActionCamera.h

/****************************************************************************
Copyright (c) 2008-2010 Ricardo Quesada
Copyright (c) 2010-2012 cocos2d-x.org
Copyright (c) 2011      Zynga Inc.
Copyright (c) 2013-2016 Chukong Technologies Inc.
Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.

https://axis-project.github.io/

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all copies or substantial portions of the Software.

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****************************************************************************/

#ifndef __CCCAMERA_ACTION_H__
#define __CCCAMERA_ACTION_H__

#include "2d/CCActionInterval.h"
#include "math/CCMath.h"

NS_AX_BEGIN

class Camera;

/**
 * @addtogroup actions
 * @{
 */

/**
 *@brief Base class for Camera actions.
 *@ingroup Actions
 */
class AX_DLL ActionCamera : public ActionInterval
{
public:
    /**
     * @js ctor
     * @lua new
     */
    ActionCamera();
    /**
     * @js NA
     * @lua NA
     */
    virtual ~ActionCamera(){};

    // Overrides
    virtual void startWithTarget(Node* target) override;
    virtual ActionCamera* reverse() const override;
    virtual ActionCamera* clone() const override;

    /* Sets the Eye value of the Camera.
     *
     * @param eye The Eye value of the Camera.
     * @js NA
     */
    void setEye(const Vec3& eye);
    void setEye(float x, float y, float z);
    /* Returns the Eye value of the Camera.
     *
     * @return The Eye value of the Camera.
     * @js NA
     */
    const Vec3& getEye() const { return _eye; }
    /* Sets the Center value of the Camera.
     *
     * @param center The Center value of the Camera.
     * @js NA
     */
    void setCenter(const Vec3& center);
    /* Returns the Center value of the Camera.
     *
     * @return The Center value of the Camera.
     * @js NA
     */
    const Vec3& getCenter() const { return _center; }
    /* Sets the Up value of the Camera.
     *
     * @param up The Up value of the Camera.
     * @js NA
     */
    void setUp(const Vec3& up);
    /* Returns the Up value of the Camera.
     *
     * @return The Up value of the Camera.
     * @js NA
     */
    const Vec3& getUp() const { return _up; }

protected:
    void restore();
    void updateTransform();

    Vec3 _center;
    Vec3 _eye;
    Vec3 _up;
};

/** @class OrbitCamera
 *
 * @brief OrbitCamera action.
 * Orbits the camera around the center of the screen using spherical coordinates.
 * @ingroup Actions
 */
class AX_DLL OrbitCamera : public ActionCamera
{
public:
    /** Creates a OrbitCamera action with radius, delta-radius,  z, deltaZ, x, deltaX.
     *
     * @param t Duration in seconds.
     * @param radius The start radius.
     * @param deltaRadius The delta radius.
     * @param angleZ The start angle in Z.
     * @param deltaAngleZ The delta angle in Z.
     * @param angleX The start angle in X.
     * @param deltaAngleX The delta angle in X.
     * @return An OrbitCamera.
     */
    static OrbitCamera*
    create(float t, float radius, float deltaRadius, float angleZ, float deltaAngleZ, float angleX, float deltaAngleX);

    /** Positions the camera according to spherical coordinates.
     *
     * @param r The spherical radius.
     * @param zenith The spherical zenith.
     * @param azimuth The spherical azimuth.
     */
    void sphericalRadius(float* r, float* zenith, float* azimuth);

    // Overrides
    OrbitCamera* clone() const override;
    virtual void startWithTarget(Node* target) override;
    virtual void update(float time) override;

    /**
     * @js ctor
     */
    OrbitCamera();
    /**
     * @js NA
     * @lua NA
     */
    virtual ~OrbitCamera();

    /** Initializes a OrbitCamera action with radius, delta-radius,  z, deltaZ, x, deltaX. */
    bool initWithDuration(float t,
                          float radius,
                          float deltaRadius,
                          float angleZ,
                          float deltaAngleZ,
                          float angleX,
                          float deltaAngleX);

protected:
    float _radius;
    float _deltaRadius;
    float _angleZ;
    float _deltaAngleZ;
    float _angleX;
    float _deltaAngleX;

    float _radZ;
    float _radDeltaZ;
    float _radX;
    float _radDeltaX;
};

// end of actions group
/// @}

NS_AX_END

#endif  //__CCCAMERA_ACTION_H__