///////////////////////////////////////////////////////////////////////////////////
/// OpenGL Mathematics (glm.g-truc.net)
///
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/// @ref gtx_matrix_transform_2d
/// @file glm/gtx/matrix_transform_2d.hpp
/// @date 2014-02-20
/// @author Miguel Ángel Pérez Martínez
///
/// @see core (dependence)
///
/// @defgroup gtx_matrix_transform_2d GLM_GTX_matrix_transform_2d
/// @ingroup gtx
///
/// @brief Defines functions that generate common 2d transformation matrices.
///
/// <glm/gtx/matrix_transform_2d.hpp> need to be included to use these functionalities.
///////////////////////////////////////////////////////////////////////////////////

#pragma once

// Dependency:
#include "../mat3x3.hpp"
#include "../vec2.hpp"


#if(defined(GLM_MESSAGES) && !defined(GLM_EXT_INCLUDED))
#       pragma message("GLM: GLM_GTX_matrix_transform_2d extension included")
#endif

namespace glm
{
        /// @addtogroup gtx_matrix_transform_2d
        /// @{
       
        /// Builds a translation 3 * 3 matrix created from a vector of 2 components.
        ///
        /// @param m Input matrix multiplied by this translation matrix.
        /// @param v Coordinates of a translation vector.              
        template <typename T, precision P>
        GLM_FUNC_QUALIFIER tmat3x3<T, P> translate(
                tmat3x3<T, P> const & m,
                tvec2<T, P> const & v);

        /// Builds a rotation 3 * 3 matrix created from an angle.
        ///
        /// @param m Input matrix multiplied by this translation matrix.
        /// @param angle Rotation angle expressed in radians if GLM_FORCE_RADIANS is defined or degrees otherwise.
        template <typename T, precision P>
        GLM_FUNC_QUALIFIER tmat3x3<T, P> rotate(
                tmat3x3<T, P> const & m,
                T angle);

        /// Builds a scale 3 * 3 matrix created from a vector of 2 components.
        ///
        /// @param m Input matrix multiplied by this translation matrix.
        /// @param v Coordinates of a scale vector.            
        template <typename T, precision P>
        GLM_FUNC_QUALIFIER tmat3x3<T, P> scale(
                tmat3x3<T, P> const & m,
                tvec2<T, P> const & v);

        /// Builds an horizontal (parallel to the x axis) shear 3 * 3 matrix.
        ///
        /// @param m Input matrix multiplied by this translation matrix.
        /// @param y Shear factor.
        template <typename T, precision P>
        GLM_FUNC_QUALIFIER tmat3x3<T, P> shearX(
                tmat3x3<T, P> const & m,
                T y);

        /// Builds a vertical (parallel to the y axis) shear 3 * 3 matrix.
        ///
        /// @param m Input matrix multiplied by this translation matrix.
        /// @param x Shear factor.
        template <typename T, precision P>
        GLM_FUNC_QUALIFIER tmat3x3<T, P> shearY(
                tmat3x3<T, P> const & m,
                T x);

        /// @}
}//namespace glm

#include "matrix_transform_2d.inl"