SO3Engine/SO3Utils/SO3RayCast.h

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/*
-----------------------------------------------------------------------------
This source file is part of OpenSpace3D
For the latest info, see http://www.openspace3d.com

Copyright (c) 2010 I-maginer

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

You may alternatively use this source under the terms of a specific version of
the OpenSpace3D Unrestricted License provided you have obtained such a license from
I-maginer.
-----------------------------------------------------------------------------
*/

#ifndef __SO3_RAYCAST_H__
#define __SO3_RAYCAST_H__

#include "../SCOLBasic/SO3Std.h"

namespace SO3
{

class SRaycastResult
{
public:
  SScene* scene;
  std::string sceneName;
  SViewPort* viewport;
  SEntity* entity;
  std::string entityName;
  SMaterial* material;
  float closestDistance;
  Ogre::Vector3 point;
        int indexFace;
        Ogre::Vector3 v1;
        Ogre::Vector3 v2;
        Ogre::Vector3 v3;
        Ogre::Vector2 pReal1;
        Ogre::Vector2 pReal2;
        Ogre::Vector2 pReal3;
        Ogre::Vector2 uvResult;
protected:
private:

public:
  SRaycastResult();

  SRaycastResult(const SRaycastResult& copiedRaycast);
protected:
private:
};

class SRaycast
{
public:
protected:
private:

public:
  static SRaycastResult Cast(SCamera* camera, float relativePosX, float relativePosY, Ogre::SubEntity* subEntity, bool getUvCoordonate=false);
protected:
private:
  SRaycast();

  static void GetSubEntityInformation(Ogre::SubEntity* subEntity, size_t &vertex_count, Ogre::Vector3* &vertices, size_t &index_count, unsigned long* &indices);

  static Ogre::Vector3 GetBarycentricCoordinates(const Ogre::Vector3& P1, const Ogre::Vector3& P2, const Ogre::Vector3& P3, const Ogre::Vector3& P);
};

}

#endif

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