Mesh.h

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/*
--------------------------------------------------------------------------------
This source file is part of Hydrax.
Visit ---
 
Copyright (C) 2008 Xavier Verguín González <xavierverguin@hotmail.com>
                                           <xavyiy@gmail.com>
 
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
 
This program 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 GNU Lesser General Public License for more details.
 
You should have received a copy of the GNU Lesser General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place - Suite 330, Boston, MA 02111-1307, USA, or go to
http://www.gnu.org/copyleft/lesser.txt.
--------------------------------------------------------------------------------
*/
 
#ifndef _Hydrax_Mesh_H_
#define _Hydrax_Mesh_H_
 
#include "Prerequisites.h"
 
#include "Help.h"
#include "Image.h"
 
 
 
namespace Hydrax
{
    class Hydrax;
 
    class Mesh
    {
    public:
        struct POS_NORM_UV_VERTEX
        {
            float x,y,z;
            float nx,ny,nz;
            float tu,tv;
        };
 
        struct POS_NORM_VERTEX
        {
            float x,y,z;
            float nx,ny,nz;
        };
 
        struct POS_UV_VERTEX
        {
            float x,y,z;
            float tu,tv;
        };
 
        struct POS_VERTEX
        {
            float x,y,z;
        };
 
        enum VertexType
        {
            VT_POS_NORM_UV = 0,
            VT_POS_NORM    = 1,
            VT_POS_UV      = 2,
            VT_POS         = 3,
        };
 
        struct Options
        {
            Options()
                : MeshComplexity(128)
                , MeshSize(Size(0))
                , MeshStrength(10)
                , MeshVertexType(VT_POS_NORM_UV)
            {
            }
 
            Options(const int &meshComplexity, const Size &meshSize, const VertexType &meshVertexType)
                : MeshComplexity(meshComplexity)
                , MeshSize(meshSize)
                , MeshStrength(10)
                , MeshVertexType(meshVertexType)
            {
            }
 
            Options(const int &meshComplexity, const Size &meshSize, const float &meshStrength, const VertexType &meshVertexType)
                : MeshComplexity(meshComplexity)
                , MeshSize(meshSize)
                , MeshStrength(meshStrength)
                , MeshVertexType(meshVertexType)
            {
            }
 
            int MeshComplexity;
            Size MeshSize;
            float MeshStrength;
            VertexType MeshVertexType;
        };
 
        Mesh(Hydrax *h);
 
        ~Mesh();
 
        void setOptions(const Options &Options);
 
        void setMaterialName(const Ogre::String &MaterialName);
 
        void create();
 
        void remove();
 
        bool updateGeometry(const int &numVer, void* verArray);
 
        bool isPointInGrid(const Ogre::Vector2 &Position);
 
        Ogre::Vector2 getGridPosition(const Ogre::Vector2 &Position);
 
        const Ogre::Vector3 getObjectSpacePosition(const Ogre::Vector3& WorldSpacePosition) const;
 
        const Ogre::Vector3 getWorldSpacePosition(const Ogre::Vector3& ObjectSpacePosition) const;
 
        inline Ogre::MeshPtr getMesh()
        {
            return mMesh;
        }
 
        inline Ogre::SubMesh* getSubMesh()
        {
            return mSubMesh;
        }
 
        inline Ogre::Entity* getEntity()
        {
            return mEntity;
        }
 
        inline const Options& getOptions() const
        {
            return mOptions;
        }
 
        inline const Size& getSize() const
        {
            return mOptions.MeshSize;
        }
 
        inline const VertexType& getVertexType() const
        {
            return mOptions.MeshVertexType;
        }
 
        inline const int& getNumFaces() const
        {
            return mNumFaces;
        }
 
        inline const int& getNumVertices() const
        {
            return mNumVertices;
        }
 
        inline const Ogre::String& getMaterialName() const
        {
            return mMaterialName;
        }
 
        inline Ogre::HardwareVertexBufferSharedPtr &getHardwareVertexBuffer()
        {
            return mVertexBuffer;
        }
 
        inline Ogre::HardwareIndexBufferSharedPtr &getHardwareIndexBuffer()
        {
            return mIndexBuffer;
        }
 
        inline Ogre::SceneNode* getSceneNode()
        {
            return mSceneNode;
        }
 
        inline const bool& isCreated() const
        {
            return mCreated;
        }
 
    private:
        void _createGeometry();
 
        Options mOptions;
        bool mCreated;
        Ogre::MeshPtr mMesh;
        Ogre::SubMesh *mSubMesh;
        Ogre::Entity *mEntity;
        int mNumFaces;
        int mNumVertices;
 
        Ogre::HardwareVertexBufferSharedPtr mVertexBuffer;
        Ogre::HardwareIndexBufferSharedPtr  mIndexBuffer;
 
        Ogre::SceneNode* mSceneNode;
 
        Ogre::String mMaterialName;
 
        Hydrax *mHydrax;
    };
}
 
 
#endif