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#pragma once
#ifndef VPVL2_ILIGHTKEYFRAME_H_
#define VPVL2_ILIGHTKEYFRAME_H_

#include "vpvl2/IKeyframe.h"

namespace vpvl2
{

/**
 * 照明のキーフレームをあらわすインターフェースです。
 *
 */
class VPVL2_API ILightKeyframe : public IKeyframe
{
public:
    virtual ~ILightKeyframe() {}

    /**
     * ILightKeyframe のインスタンスの完全なコピーを返します.
     *
     * @return ILightKeyframe
     */
    virtual ILightKeyframe *clone() const = 0;

    /**
     * 照明の色を返します.
     *
     * @return Vector3
     * @sa setColor
     */
    virtual Vector3 color() const = 0;

    /**
     * 照明の方向を返します.
     *
     * @return Vector3
     * @sa setDirection
     */
    virtual Vector3 direction() const = 0;

    /**
     * 照明の色を設定します.
     *
     * それぞれの値は 0.0 以上 1.0 以下でなければなりません。
     *
     * @param Vector3
     * @sa setColor
     */
    virtual void setColor(const Vector3 &value) = 0;

    /**
     * 照明の方向を設定します.
     *
     * それぞれの値は -1.0 以上 1.0 以下でなければなりません。
     *
     * @param Vector3
     * @sa setDirection
     */
    virtual void setDirection(const Vector3 &value) = 0;
};

} /* namespace vpvl2 */

#endif
