WorldModel.h

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/*
 * Copyright (C) 2008-2016 TrinityCore <http://www.trinitycore.org/>
 * Copyright (C) 2005-2010 MaNGOS <http://getmangos.com/>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU 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 General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef _WORLDMODEL_H
#define _WORLDMODEL_H

#include <G3D/HashTrait.h>
#include <G3D/Vector3.h>
#include <G3D/AABox.h>
#include <G3D/Ray.h>
#include "BoundingIntervalHierarchy.h"

#include "Define.h"

namespace VMAP
{
 class TreeNode;
 struct AreaInfo;
 struct LocationInfo;

 class TC_COMMON_API MeshTriangle
 {
 public:
 MeshTriangle() : idx0(0), idx1(0), idx2(0) { }
 MeshTriangle(uint32 na, uint32 nb, uint32 nc): idx0(na), idx1(nb), idx2(nc) { }

 uint32 idx0;
 uint32 idx1;
 uint32 idx2;
 };

 class TC_COMMON_API WmoLiquid
 {
 public:
 WmoLiquid(uint32 width, uint32 height, const G3D::Vector3 &corner, uint32 type);
 WmoLiquid(const WmoLiquid &other);
 ~WmoLiquid();
 WmoLiquid& operator=(const WmoLiquid &other);
 bool GetLiquidHeight(const G3D::Vector3 &pos, float &liqHeight) const;
 uint32 GetType() const { return iType; }
 float *GetHeightStorage() { return iHeight; }
 uint8 *GetFlagsStorage() { return iFlags; }
 uint32 GetFileSize();
 bool writeToFile(FILE* wf);
 static bool readFromFile(FILE* rf, WmoLiquid* &liquid);
 void getPosInfo(uint32 &tilesX, uint32 &tilesY, G3D::Vector3 &corner) const;
 private:
 WmoLiquid() : iTilesX(0), iTilesY(0), iCorner(), iType(0), iHeight(NULL), iFlags(NULL) { }
 uint32 iTilesX; 
 uint32 iTilesY;
 G3D::Vector3 iCorner; 
 uint32 iType; 
 float *iHeight; 
 uint8 *iFlags; 
 };

 class TC_COMMON_API GroupModel
 {
 public:
 GroupModel() : iBound(), iMogpFlags(0), iGroupWMOID(0), iLiquid(NULL) { }
 GroupModel(const GroupModel &other);
 GroupModel(uint32 mogpFlags, uint32 groupWMOID, const G3D::AABox &bound):
 iBound(bound), iMogpFlags(mogpFlags), iGroupWMOID(groupWMOID), iLiquid(NULL) { }
 ~GroupModel() { delete iLiquid; }

 void setMeshData(std::vector<G3D::Vector3> &vert, std::vector<MeshTriangle> &tri);
 void setLiquidData(WmoLiquid*& liquid) { iLiquid = liquid; liquid = NULL; }
 bool IntersectRay(const G3D::Ray &ray, float &distance, bool stopAtFirstHit) const;
 bool IsInsideObject(const G3D::Vector3 &pos, const G3D::Vector3 &down, float &z_dist) const;
 bool GetLiquidLevel(const G3D::Vector3 &pos, float &liqHeight) const;
 uint32 GetLiquidType() const;
 bool writeToFile(FILE* wf);
 bool readFromFile(FILE* rf);
 const G3D::AABox& GetBound() const { return iBound; }
 uint32 GetMogpFlags() const { return iMogpFlags; }
 uint32 GetWmoID() const { return iGroupWMOID; }
 void getMeshData(std::vector<G3D::Vector3>& outVertices, std::vector<MeshTriangle>& outTriangles, WmoLiquid*& liquid);
 protected:
 G3D::AABox iBound;
 uint32 iMogpFlags;// 0x8 outdor; 0x2000 indoor
 uint32 iGroupWMOID;
 std::vector<G3D::Vector3> vertices;
 std::vector<MeshTriangle> triangles;
 BIH meshTree;
 WmoLiquid* iLiquid;
 };

 class TC_COMMON_API WorldModel
 {
 public:
 WorldModel(): RootWMOID(0) { }

 void setGroupModels(std::vector<GroupModel> &models);
 void setRootWmoID(uint32 id) { RootWMOID = id; }
 bool IntersectRay(const G3D::Ray &ray, float &distance, bool stopAtFirstHit) const;
 bool IntersectPoint(const G3D::Vector3 &p, const G3D::Vector3 &down, float &dist, AreaInfo &info) const;
 bool GetLocationInfo(const G3D::Vector3 &p, const G3D::Vector3 &down, float &dist, LocationInfo &info) const;
 bool writeFile(const std::string &filename);
 bool readFile(const std::string &filename);
 void getGroupModels(std::vector<GroupModel>& outGroupModels);
 protected:
 uint32 RootWMOID;
 std::vector<GroupModel> groupModels;
 BIH groupTree;
 };
} // namespace VMAP

#endif // _WORLDMODEL_H