SO3Engine/SO3PhysicGraph/CollisionTools.h

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/******************************************************************************************
MOC - Minimal Ogre Collision v 1.0 beta
The MIT License

Copyright (c) 2008 MouseVolcano (Thomas Gradl, Esa Kylli, Erik Biermann, Karolina Sefyrin)

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.
******************************************************************************************/
#pragma once
#ifndef COLLISIONTOOLS_H
#define COLLISIONTOOLS_H

#pragma warning (disable : 4530)

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

using namespace Ogre;

//
enum QueryFlags
{
        WATER_MASK = 1<<7,
        ENTITY_MASK  = 1<<8,
        ROAD_MASK   = 1<<9,
        FOILAGE_MASK  = 1<<10,
        MOBILE_MASK = 1<<11,
};

class MFACEDATA
{
public:
        Vector3 point;
        int indexFace;
        Vector3 v1;
        Vector3 v2;
        Vector3 v3;
        Vector2 pReal1;
        Vector2 pReal2;
        Vector2 pReal3;
        Vector2 uvResult;
protected:
private:

public:
  MFACEDATA();

  MFACEDATA(const MFACEDATA& faceData);
protected:
private:
};

namespace MOC {

class CollisionTools {
public:
        Ogre::RaySceneQuery* mRaySceneQuery;
        Ogre::RaySceneQuery* mTSMRaySceneQuery;
        
        SceneManager* mSceneMgr;
        
        CollisionTools(Ogre::SceneManager* sceneMgr);
        ~CollisionTools();                      

        bool collidesWithEntity(const Vector3& fromPoint, const Vector3& toPoint, const float collisionRadius = 2.5f, const float rayHeightLevel = 0.0f, const uint32 queryMask = 0xFFFFFFFF);

        void calculateY(SceneNode*n, const bool doTerrainCheck = true, const bool doGridCheck = true, const float gridWidth = 1.0f, const uint32 queryMask = 0xFFFFFFFF);
        
        float getTSMHeightAt(const float x, const float z);

        bool raycastFromPoint(const Vector3 &point, const Vector3 &normal, Vector3 &result,ulong &target,float &closest_distance, const uint32 queryMask = 0xFFFFFFFF);

        bool raycast(const Ray &ray, Vector3 &result,ulong &target,float &closest_distance,int &indexSubEntity,MFACEDATA* faceData, const uint32 queryMask = 0xFFFFFFFF, bool extendedInfo = false);
        Vector3 GetBarycentricCoordinates(const Vector3 &P1, const Vector3 &P2, const Vector3 &P3, const Vector3 &P);
        void setHeightAdjust(const float heightadjust);
        float getHeightAdjust(void);

private:

        float _heightAdjust;

        /*void GetMeshInformation(const Ogre::MeshPtr mesh,
                                size_t &vertex_count,
                                Ogre::Vector4* &vertices,
                                size_t &index_count,
                                unsigned long* &indices,
                                const Ogre::Vector3 &position,
                                const Ogre::Quaternion &orient,
                                const Ogre::Vector3 &scale);
                                                                */
        void GetMeshInformation(const Entity*mEntity,
                size_t &vertex_count,
                Ogre::Vector4* &vertices,
                size_t &index_count,
                unsigned long* &indices,
                const Ogre::Vector3 &position,
                const Ogre::Quaternion &orient,
                const Ogre::Vector3 &scale);

        void GetSubMeshInformation(SEntity* mEntity,
                Ogre::SubMesh* submesh,
                int i,
                size_t &vertex_count,
                Ogre::Vector3* &vertices,
                size_t &index_count,
                unsigned long* &indices,
                const Ogre::Vector3 &position,
                const Ogre::Quaternion &orient,
                const Ogre::Vector3 &scale);

};

};

#endif