randompixelsmodifier.h

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

    The Mezzanine Engine is free software: you can redistribute it and/or modify
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    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with The Mezzanine Engine.  If not, see <http://www.gnu.org/licenses/>.
*/
/* The original authors have included a copy of the license specified above in the
   'Docs' folder. See 'gpl.txt'
*/
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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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 copies of the Software, and to permit persons to whom the Software is
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 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 */
#ifndef _graphicsproceduralrandompixelsmodifier_h
#define _graphicsproceduralrandompixelsmodifier_h

#include "Graphics/Procedural/Texture/texturemodifier.h"

namespace Mezzanine
{
    namespace Graphics
    {
        namespace Procedural
        {
            ///////////////////////////////////////////////////////////////////////////////
            /// @brief A modifer that will draw coloured pixels at random positions on the texture.
            /// @details
            ///////////////////////////////////////
            class MEZZ_LIB RandomPixelsModifier : public TextureModifier
            {
            protected:
                /// @internal
                /// @brief The colour of the randomly placed pixels.
                ColourValue PixelColour;
                /// @internal
                /// @brief The number of randomly placed pixels to generate.
                Whole PixelCount;
                /// @internal
                /// @brief The seed to be used for the randomly generatated texture positions the pixels will be drawn to.
                Whole GeneratorSeed;
            public:
                /// @brief Blank constructor.
                RandomPixelsModifier();
                /// @brief Class destructor.
                virtual ~RandomPixelsModifier();

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

                /// @copydoc TextureModifier::Modify(TextureBuffer&)
                virtual void Modify(TextureBuffer& Buffer);
                /// @copydoc TextureModifier::GetName() const
                virtual String GetName() const;

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

                /// @brief Sets the colour of the pixels to be generated.
                /// @param Colour The colour of the randomly placed pixels.  Initial Value: 1.0, 1.0, 1.0, 1.0.
                /// @return Returns a reference to this.
                RandomPixelsModifier& SetColour(const ColourValue& Colour);
                /// @brief Sets the colour of the pixels to be generated.
                /// @param Red The Red component for the colour of the randomly generated pixels.  Initial Value: 1.0.
                /// @param Green The Green component for the colour of the randomly generated pixels.  Initial Value: 1.0.
                /// @param Blue The Blue component for the colour of the randomly generated pixels.  Initial Value: 1.0.
                /// @param Alpha The Alpha component for the colour of the randomly generated pixels.  Initial Value: 1.0.
                /// @return Returns a reference to this.
                RandomPixelsModifier& SetColour(const Real Red, const Real Green, const Real Blue, const Real Alpha = 1.0);
                /// @brief Sets the colour of the pixels to be generated.
                /// @param Red The Red component for the colour of the randomly generated pixels.  Initial Value: 1.0.
                /// @param Green The Green component for the colour of the randomly generated pixels.  Initial Value: 1.0.
                /// @param Blue The Blue component for the colour of the randomly generated pixels.  Initial Value: 1.0.
                /// @param Alpha The Alpha component for the colour of the randomly generated pixels.  Initial Value: 1.0.
                /// @return Returns a reference to this.
                RandomPixelsModifier& SetColour(const UInt8 Red, const UInt8 Green, const UInt8 Blue, const UInt8 Alpha);
                /// @brief Sets the number of pixels to generate.
                /// @remarks If this is left as zero then the number of pixels generated will be decided based on the textures size, taking the square root of both
                /// the width and height, adding them together, and multiplying by 10.
                /// @param Count The number of randomly placed pixels to generate.  Initial Value: 0.
                /// @return Returns a reference to this.
                RandomPixelsModifier& SetPixelCount(const Whole Count);
                /// @brief Sets the seed for the random number generator used to determine pixel positions.
                /// @param Seed The seed to be used for the randomly generatated texture positions the pixels will be drawn to.  Initial Value: 5120.
                /// @return Returns a reference to this.
                RandomPixelsModifier& SetSeed(const Whole Seed);
            };//RandomPixelsModifier
        }//Procedural
    }//Graphics
}//Mezzanine

#endif