boxgenerator.cpp

// © 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
 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 copies of the Software, and to permit persons to whom the Software is
 furnished to do so, subject to the following conditions:

 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 -----------------------------------------------------------------------------
 */
#ifndef _graphicsproceduralboxgenerator_cpp
#define _graphicsproceduralboxgenerator_cpp

#include "Graphics/Procedural/Mesh/boxgenerator.h"
#include "Graphics/Procedural/Mesh/planegenerator.h"

#include "exception.h"

namespace Mezzanine
{
    namespace Graphics
    {
        namespace Procedural
        {
            const String BoxGenerator::TAG_NEGX = "box.negx";
            const String BoxGenerator::TAG_NEGY = "box.negy";
            const String BoxGenerator::TAG_NEGZ = "box.negz";
            const String BoxGenerator::TAG_X = "box.x";
            const String BoxGenerator::TAG_Y = "box.y";
            const String BoxGenerator::TAG_Z = "box.z";

            BoxGenerator::BoxGenerator(const Vector3& HalfExtents, const Whole SegX, const Whole SegY, const Whole SegZ)
            {
                this->SetHalfExtents(HalfExtents);
                this->SetNumSegX(SegX);
                this->SetNumSegY(SegY);
                this->SetNumSegZ(SegZ);
            }

            BoxGenerator::BoxGenerator(const Real HalfSizeX, const Real HalfSizeY, const Real HalfSizeZ, const Whole SegX, const Whole SegY, const Whole SegZ)
            {
                this->SetHalfSizeX(HalfSizeX);
                this->SetHalfSizeY(HalfSizeY);
                this->SetHalfSizeZ(HalfSizeZ);
                this->SetNumSegX(SegX);
                this->SetNumSegY(SegY);
                this->SetNumSegZ(SegZ);
            }

            BoxGenerator::~BoxGenerator()
                {  }

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

            void BoxGenerator::AddToTriangleBuffer(TriangleBuffer& Buffer) const
            {
                PlaneGenerator PG;
                PG.SetUTile(this->UTile).SetVTile(this->VTile);
                if( this->GeneratorOpts | GO_Transform ) {
                    PG.SetScale(this->Scale);
                    PG.SetOrientation(this->Orientation);
                }

                PG.SetNumSegX(this->NumSegY).SetNumSegY(this->NumSegX).SetSizeX(this->BoxHalf.Y).SetSizeY(this->BoxHalf.X)
                .SetNormal( Vector3::Neg_Unit_Z() )
                .SetPosition( this->Scale * ( this->Position + ( this->Orientation * Vector3::Neg_Unit_Z() ) * ( this->BoxHalf.Z * 0.5 ) ) )
                .AddToTriangleBuffer(Buffer);

                PG.SetNumSegX(this->NumSegY).SetNumSegY(this->NumSegX).SetSizeX(this->BoxHalf.Y).SetSizeY(this->BoxHalf.X)
                .SetNormal( Vector3::Unit_Z() )
                .SetPosition( this->Scale * ( this->Position + ( this->Orientation * Vector3::Unit_Z() ) * ( this->BoxHalf.Z * 0.5 ) ) )
                .AddToTriangleBuffer(Buffer);

                PG.SetNumSegX(this->NumSegZ).SetNumSegY(this->NumSegX).SetSizeX(this->BoxHalf.Z).SetSizeY(this->BoxHalf.X)
                .SetNormal( Vector3::Neg_Unit_Y() )
                .SetPosition( this->Scale * ( this->Position + ( this->Orientation * Vector3::Neg_Unit_Y() ) * ( this->BoxHalf.Y * 0.5 ) ) )
                .AddToTriangleBuffer(Buffer);

                PG.SetNumSegX(this->NumSegZ).SetNumSegY(this->NumSegX).SetSizeX(this->BoxHalf.Z).SetSizeY(this->BoxHalf.X)
                .SetNormal( Vector3::Unit_Y() )
                .SetPosition( this->Scale * ( this->Position + ( this->Orientation * Vector3::Unit_Y() ) * ( this->BoxHalf.Y * 0.5 ) ) )
                .AddToTriangleBuffer(Buffer);

                PG.SetNumSegX(this->NumSegZ).SetNumSegY(this->NumSegY).SetSizeX(this->BoxHalf.Z).SetSizeY(this->BoxHalf.Y)
                .SetNormal( Vector3::Neg_Unit_X() )
                .SetPosition( this->Scale * ( this->Position + ( this->Orientation * Vector3::Neg_Unit_X() ) * ( this->BoxHalf.X * 0.5 ) ) )
                .AddToTriangleBuffer(Buffer);

                PG.SetNumSegX(this->NumSegZ).SetNumSegY(this->NumSegY).SetSizeX(this->BoxHalf.Z).SetSizeY(this->BoxHalf.Y)
                .SetNormal( Vector3::Unit_X() )
                .SetPosition( this->Scale * ( this->Position + ( this->Orientation * Vector3::Unit_X() ) * ( this->BoxHalf.X * 0.5 ) ) )
                .AddToTriangleBuffer(Buffer);
            }

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

            BoxGenerator& BoxGenerator::SetHalfSizeX(const Real HalfSizeX)
            {
                if( HalfSizeX <= 0.0 )
                    MEZZ_EXCEPTION(ExceptionBase::PARAMETERS_EXCEPTION,"Size on an axis for a generated box mesh must be greater than zero.");

                this->BoxHalf.X = HalfSizeX;
                return *this;
            }

            BoxGenerator& BoxGenerator::SetHalfSizeY(const Real HalfSizeY)
            {
                if( HalfSizeY <= 0.0 )
                    MEZZ_EXCEPTION(ExceptionBase::PARAMETERS_EXCEPTION,"Size on an axis for a generated box mesh must be greater than zero.");

                this->BoxHalf.Y = HalfSizeY;
                return *this;
            }

            BoxGenerator& BoxGenerator::SetHalfSizeZ(const Real HalfSizeZ)
            {
                if( HalfSizeZ <= 0.0 )
                    MEZZ_EXCEPTION(ExceptionBase::PARAMETERS_EXCEPTION,"Size on an axis for a generated box mesh must be greater than zero.");

                this->BoxHalf.Z = HalfSizeZ;
                return *this;
            }

            BoxGenerator& BoxGenerator::SetHalfExtents(const Vector3& HalfExtents)
            {
                this->SetHalfSizeX(HalfExtents.X);
                this->SetHalfSizeY(HalfExtents.Y);
                this->SetHalfSizeZ(HalfExtents.Z);
                return *this;
            }

            BoxGenerator& BoxGenerator::SetNumSegX(const Whole SegX)
            {
                if( SegX == 0 )
                    MEZZ_EXCEPTION(ExceptionBase::PARAMETERS_EXCEPTION,"Number of segments for generated box mesh must be greater than zero.");

                this->NumSegX = SegX;
                return *this;
            }

            BoxGenerator& BoxGenerator::SetNumSegY(const Whole SegY)
            {
                if( SegY == 0 )
                    MEZZ_EXCEPTION(ExceptionBase::PARAMETERS_EXCEPTION,"Number of segments for generated box mesh must be greater than zero.");

                this->NumSegY = SegY;
                return *this;
            }

            BoxGenerator& BoxGenerator::SetNumSegZ(const Whole SegZ)
            {
                if( SegZ == 0 )
                    MEZZ_EXCEPTION(ExceptionBase::PARAMETERS_EXCEPTION,"Number of segments for generated box mesh must be greater than zero.");

                this->NumSegZ = SegZ;
                return *this;
            }
        }//Procedural
    }//Graphics
}//Mezzanine

#endif