#pragma region CPL License
/*
Nuclex Native Framework
Copyright (C) 2002-2015 Nuclex Development Labs

This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.

You should have received a copy of the IBM Common Public
License along with this library
*/
#pragma endregion // CPL License

#ifndef NUCLEX_GEOMETRY_LINES_CURVE2_H
#define NUCLEX_GEOMETRY_LINES_CURVE2_H

#include "Nuclex/Geometry/Config.h"
#include "Nuclex/Geometry/Point2.h"
#include "Nuclex/Geometry/Lines/CurveInterpolationMethod.h"

namespace Nuclex { namespace Geometry { namespace Lines {

  // ------------------------------------------------------------------------------------------- //

  /// <summary>Two-dimensional curve with multiple control points</summary>
  template <typename TScalar>
  struct Curve2 {

    /// <summary>Initializes a new curve using the specified interpolation method</summary>
    /// <param name="interpolationMethod">Interpolation method to use for the curve</param>
    public: Curve2(
      CurveInterpolationMethod interpolationMethod = CurveInterpolationMethod::Cubic
    ) :
      InterpolationMethod(interpolationMethod) {}

    /// <summary>Offsets the entire curve by the specified amount</summary>
    /// <param name="offset">Amount the curve will be offset</param>
    public: void ShiftBy(const Vector2<TScalar> &offset) {
      std::size_t vertexCount = this->Vertices.size();
      for(std::size_t index = 0; index < vertexCount; ++index) {
        this->Vertices[index] += offset;
      }
    }

    /// <summary>Offsets the entire curve by the specified amount</summary>
    /// <param name="x">Amount the curve will be offset on the X axis</param>
    /// <param name="y">Amount the curve will be offset on the Y axis</param>
    public: void ShiftBy(TScalar x, TScalar y) {
      std::size_t vertexCount = this->Vertices.size();
      for(std::size_t index = 0; index < vertexCount; ++index) {
        this->Vertices[index].X += x;
        this->Vertices[index].Y += y;
      }
    }

    /// <summary>Interpolation method used for the curve</summary>
    public: CurveInterpolationMethod InterpolationMethod;
    /// <summary>The polyline's vertices</summary>
    public: std::vector< Point2<TScalar> > Vertices;

  };

  // ------------------------------------------------------------------------------------------- //

}}} // namespace Nuclex::Geometry::Lines

#endif // NUCLEX_GEOMETRY_LINES_CURVE2_H