text: /******************************************************************************************
  MOC - Minimal Ogre Collision v 1.0
  The MIT License
  
  Copyright (c) 2008, 2009 MouseVolcano (Thomas Gradl, Karolina Sefyrin), Esa Kylli
  
  Thanks to Erik Biermann for the help with the Videos, SEO and Webwork
  
  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 COLLISIONTOOLS_H
  #define COLLISIONTOOLS_H
  
  #include "stdafx.h"
  #include "Camera.hpp"
  
  // uncomment if you want to use ETM as terrainmanager
  //#define ETM_TERRAIN
  
  #ifdef ETM_TERRAIN
  #include "ETTerrainInfo.h"
  #endif
  
  
  
  namespace yz {
  
  class CollisionTools {
  
  public:
  	Ogre::RaySceneQuery *mRaySceneQuery;
  	Ogre::RaySceneQuery *mTSMRaySceneQuery;
  
  #ifdef ETM_TERRAIN
  	const ET::TerrainInfo* mTerrainInfo;
  	CollisionTools(Ogre::RaySceneQuery* query, const ET::TerrainInfo* terrainInfo);
  #endif
  
  	CollisionTools(Ogre::RaySceneQuery* query, Ogre::RaySceneQuery* terrainQuery);
  	~CollisionTools();
  
  	bool raycastFromCamera(Ogre::RenderWindow* rw, Camera* camera, const Ogre::Vector2 &mousecoords, Ogre::Vector3 &result, Ogre::MovableObject* &target,float &closest_distance, const Ogre::uint32 queryMask = 0xFFFFFFFF);
  	// convenience wrapper with Ogre::Entity to it:
  	bool raycastFromCamera(Ogre::RenderWindow* rw, Camera* camera, const Ogre::Vector2 &mousecoords, Ogre::Vector3 &result, Ogre::Entity* &target,float &closest_distance, const Ogre::uint32 queryMask = 0xFFFFFFFF);
  
  	bool collidesWithEntity(const Ogre::Vector3& fromPoint, const Ogre::Vector3& toPoint, const float collisionRadius = 2.5f, const float rayHeightLevel = 0.0f, const Ogre::uint32 queryMask = 0xFFFFFFFF);
  
  	void calculateY(Ogre::SceneNode *n, const bool doTerrainCheck = true, const bool doGridCheck = true, const float gridWidth = 1.0f, const Ogre::uint32 queryMask = 0xFFFFFFFF);
  
  	float getTSMHeightAt(const float x, const float z);
  
  	bool raycastFromPoint(const Ogre::Vector3 &point, const Ogre::Vector3 &normal, Ogre::Vector3 &result,Ogre::MovableObject* &target,float &closest_distance, const Ogre::uint32 queryMask = 0xFFFFFFFF);
  	// convenience wrapper with Ogre::Entity to it:
  	bool raycastFromPoint(const Ogre::Vector3 &point, const Ogre::Vector3 &normal, Ogre::Vector3 &result,Ogre::Entity* &target,float &closest_distance, const Ogre::uint32 queryMask = 0xFFFFFFFF);
  
  	bool raycast(const Ogre::Ray &ray, Ogre::Vector3 &result, Ogre::MovableObject* &target,float &closest_distance, const Ogre::uint32 queryMask = 0xFFFFFFFF);
  	// convenience wrapper with Ogre::Entity to it:
  	bool raycast(const Ogre::Ray &ray, Ogre::Vector3 &result, Ogre::Entity* &target,float &closest_distance, const Ogre::uint32 queryMask = 0xFFFFFFFF);
  
  	void setHeightAdjust(const float heightadjust);
  	float getHeightAdjust(void);
  
  private:
  
  	float _heightAdjust;
  
  	void GetMeshInformation(const Ogre::MeshPtr mesh,
                                  size_t &vertex_count,
                                  Ogre::Vector3* &vertices,
                                  size_t &index_count,
                                  Ogre::uint32* &indices,
                                  const Ogre::Vector3 &position,
                                  const Ogre::Quaternion &orient,
                                  const Ogre::Vector3 &scale);
  
  };
  
  }
  
  #endif
  