// Copyright (c) 2016-2018 Kiwano - Nomango
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

#pragma once
#include <kiwano/2d/transition/Transition.h>

namespace kiwano
{

KGE_DECLARE_SMART_PTR(MoveTransition);

/**
 * \addtogroup Transition
 * @{
 */

/**
 * \~chinese
 * @brief 位移过渡动画
 * @details 两场景以位移的方式切换
 */
class MoveTransition : public Transition
{
public:
    /**
     * \~chinese
     * @brief 位移方式
     */
    enum class Type : int
    {
        Up,    ///< 上移
        Down,  ///< 下移
        Left,  ///< 左移
        Right  ///< 右移
    };

    /**
     * \~chinese
     * @brief 创建位移过渡动画
     * @param duration 动画时长
     * @param type 位移方式
     */
    MoveTransition(Duration duration, Type type);

    MoveTransition();

protected:
    void Update(Duration dt) override;

    virtual void Init(Stage* prev, Stage* next) override;

    void Reset() override;

private:
    Type  type_;
    Point pos_delta_;
    Point start_pos_;
};

/** @} */

}  // namespace kiwano
