vertexuvmodifier.h

// © Copyright 2010 - 2016 BlackTopp Studios Inc.
/* This file is part of The Mezzanine Engine.

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*/
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/*
 -----------------------------------------------------------------------------
 This source file is part of ogre-procedural

 For the latest info, see http://code.google.com/p/ogre-procedural/

 Copyright (c) 2010-2013 Michael Broutin

 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
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 */
#ifndef _graphicsproceduralvertrxuvmodifier_h
#define _graphicsproceduralvertexuvmodifier_h

#include "Graphics/Procedural/Mesh/meshmodifier.h"

namespace Mezzanine
{
    namespace Graphics
    {
        namespace Procedural
        {
            ///////////////////////////////////////////////////////////////////////////////
            /// @brief A modifier that will transform the UV coordinates of a mesh.
            /// @details
            ///////////////////////////////////////
            class MEZZ_LIB VertexUVModifier : public MeshModifier
            {
            protected:
                /// @internal
                /// @brief The amount of scaling to apply to the UV coordinates.
                Vector2 UVTile;
                /// @internal
                /// @brief The amount of actual translation to apply to the UV coordinates.
                Vector2 UVTranslate;
                /// @internal
                /// @brief Whether or not the X and Y components of every UV should be swapped after the operation.
                Boole SwitchUV;
            public:
                /// @brief Blank constructor.
                VertexUVModifier();
                /// @brief Class destructor.
                virtual ~VertexUVModifier();

                ///////////////////////////////////////////////////////////////////////////////
                // Utility

                /// @copydoc MeshModifier::Modify(TriangleBuffer&)
                virtual void Modify(TriangleBuffer& Buffer);
                /// @copydoc MeshModifier::GetName() const
                virtual String GetName() const;

                ///////////////////////////////////////////////////////////////////////////////
                // Configuration

                /// @brief Sets the scaling to apply to each vertex UV.
                /// @param Tile The amount of scaling to apply to the UV coordinates.
                /// @return Returns a reference to this.
                VertexUVModifier& SetUVTile(const Vector2& Tile);
                /// @brief Sets the scaling to apply to each vertex UV.
                /// @param X The amount of scaling to apply on the X axis to the UV coordinates.
                /// @param Y The amount of scaling to apply on the Y axis to the UV coordinates.
                /// @return Returns a reference to this.
                VertexUVModifier& SetUVTile(const Real X, const Real Y);
                /// @brief Sets the translation to apply to each vertex UV.
                /// @param Trans The amount of actual translation to apply to the UV coordinates.
                /// @return Returns a reference to this.
                VertexUVModifier& SetUVTranslate(const Vector2& Trans);
                /// @brief Sets the translation to apply to each vertex UV.
                /// @param X The amount of translation on the X axis to apply to the UV coordinates.
                /// @param Y The amount of translation on the Y axis to apply to the UV coordinates.
                /// @return Returns a reference to this.
                VertexUVModifier& SetUVTranslate(const Real X, const Real Y);
                /// @brief Sets if UV's will swap components.
                /// @param Switch Whether or not the X and Y components of every UV should be swapped after the operation.
                /// @return Returns a reference to this.
                VertexUVModifier& SetSwitchUV(const Boole Switch);
            };//VertexUVModifier
        }//Procedural
    }//Graphics
}//Mezzanine

#endif