IPosition.h

//Copyright © 2014 SDXFramework
//[License]GNU Affero General Public License, version 3
//[Contact]http://sourceforge.jp/projects/dxframework/
#include <algorithm>

namespace SDX
{
    class IPosition
    {
    protected:
        double zoomX = 1;
        double zoomY = 1;
    public:
        virtual ~IPosition() = default;

        virtual void SetPos(double X座標, double Y座標) = 0;

        virtual void MultiZoom(double X倍率, double Y倍率) = 0;

        virtual void SetZoom(double X拡大率, double Y拡大率)
        {
            MultiZoom(X拡大率 / zoomX, Y拡大率 / zoomY);
        }

        void MultiZoom(double 倍率)
        {
            MultiZoom(倍率, 倍率);
        }

        virtual void Move(double X移動量, double Y移動量) = 0;

        void MoveA(double 距離, double 方向 )
        {
            Move(距離 * cos(方向), 距離 * sin(方向));
        }

        virtual void Rotate(double 回転する角度) = 0;

        virtual double GetAngle() const
        {
            return 0;
        }

        virtual void SetAngle(double 指定角度)
        {
            Rotate(指定角度 - GetAngle());
        }

        double GetDirect(IPosition* 比較対象) const
        {
            return atan2(比較対象->GetY() - this->GetY(), 比較対象->GetX() - this->GetX());
        }

        double GetDistance(IPosition* 比較対象) const
        {
            const double xd = this->GetX() - 比較対象->GetX();
            const double yd = this->GetY() - 比較対象->GetY();

            return sqrt(xd * xd + yd * yd);
        }

        double CompareAngle(double 角度)
        {
            return 0;
        }

        virtual double GetX() const = 0;

        virtual double  GetY() const = 0;

        virtual double  GetW() const = 0;

        virtual double  GetH() const = 0;
    };
}