source: code/branches/physics/src/ogreode/OgreOdeEntityInformer.h @ 1943

#ifndef _OGREODEENTITYINFORMER_H_
#define _OGREODEENTITYINFORMER_H_

#include "OgreOdePreReqs.h"

#include <OgreMesh.h>
#include "OgreOdeTriangleMeshData.h"

namespace OgreOde 
{
    class _OgreOdeExport EntityInformer
    {
        public:
                EntityInformer(Ogre::Entity *entity,const Ogre::Matrix4 &transform = Ogre::Matrix4::IDENTITY);
                EntityInformer();
                ~EntityInformer();

                void addEntity(Ogre::Entity *entity,const Ogre::Matrix4 &transform = Ogre::Matrix4::IDENTITY);
                // Cannot be animated. 
                void addMesh(const Ogre::MeshPtr &mesh, const Ogre::Matrix4 &transform = Ogre::Matrix4::IDENTITY);

                Ogre::Real getRadius();
                Ogre::Vector3 getSize();
                Ogre::Vector3 getCenter();

                Body* createSingleDynamicSphere(Ogre::Real mass, World *world, Space* space = 0);
                Body* createSingleDynamicBox(Ogre::Real mass, World *world, Space* space = 0);

                TriangleMeshGeometry* createStaticTriangleMesh(World *world, Space* space = 0);
                BoxGeometry* createSingleStaticBox(World *world, Space* space = 0);

                CapsuleGeometry* createOrientedCapsule(unsigned char bone, World *world, Space* space = 0);
                BoxGeometry* createOrientedBox(unsigned char bone, World *world, Space* space = 0);
                BoxGeometry* createAlignedBox(unsigned char bone, World *world, Space* space = 0);

                const Ogre::Vector3* getVertices();
                unsigned int getVertexCount();
                const TriangleIndex* getIndices();
                unsigned int getIndexCount();

        protected:
        void addVertexData(const Ogre::VertexData *vertex_data, 
            const Ogre::VertexData *blended_data = 0, 
            const Ogre::Mesh::IndexMap *indexMap = 0);
                void addIndexData(Ogre::IndexData *data, const unsigned int offset = 0);
                bool getBoneVertices(unsigned char bone,unsigned int &vertex_count, Ogre::Vector3* &vertices);

                Ogre::Entity*           _entity;
                Ogre::SceneNode*        _node;
                Ogre::Matrix4           _transform;

                Ogre::Real                      _radius;
                Ogre::Vector3           _size;
                Ogre::Vector3           _center;

        Ogre::Vector3*          _vertices;
                TriangleIndex*          _indices; 
                unsigned int            _vertex_count;
                unsigned int            _index_count;

                BoneMapping *_bone_mapping;
        };

        /** Class may create a TriangleMeshDataPtr, store and reuses it with TriangleMeshDataManager.
                This can limit the number of instances of the mesh data at a given scale to one.
                Since TriangleMeshGeometry is created using TriangleMeshDataPtr, have the advantage that 
                the TriangleMeshDataPtr can be changed without having to recreate the TriangleMeshGeometry see 
                TriangleMeshGeometry::changeTriangleMeshData().
                When TriangleMeshGeometry is created it is created at the origin with an identity orientation.
        */
        class _OgreOdeExport EntityInformerReuse : public EntityInformer
        {

        public:
        
                /** forceRecreate will force the creation of a TriangleMeshDataPtr, use only when the mesh has undergone some change
                */
                EntityInformerReuse(Ogre::Entity *entity, const Ogre::Vector3 &scale = Ogre::Vector3::UNIT_SCALE, bool forceRecreate = false);
                EntityInformerReuse(const Ogre::MeshPtr &mesh, const Ogre::Vector3 &scale = Ogre::Vector3::UNIT_SCALE, bool forceRecreate = false);
                
                virtual ~EntityInformerReuse();
                
                /** Creates TriangleMeshGeometry using TriangleMeshDataPtr 
                */
                TriangleMeshGeometry* createStaticTriangleMesh(World *world, Space* space = 0);
                
                /** Recreates any TriangleMeshGeometry with the TriangleMeshDataPtr
                */
                TriangleMeshGeometry* recreateStaticTriangleMesh(TriangleMeshGeometry* geom);
                
                /** Shouldn't be adding Entity or Mesh, one TriangleMeshData per Mesh/Entity for any scale.
                */
                virtual void addEntity(Ogre::Entity *entity,const Ogre::Matrix4 &transform = Ogre::Matrix4::IDENTITY){}
                virtual void addMesh(const Ogre::MeshPtr &mesh, const Ogre::Matrix4 &transform = Ogre::Matrix4::IDENTITY){}
                
                TriangleMeshDataPtr getTriangleMeshDataPtr(){ return _dataPtr; }
                
        protected:
        
                TriangleMeshDataPtr _dataPtr;
                
        };

}

#endif