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/*
* This file is part of the AzerothCore Project. See AUTHORS file for Copyright information
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Affero General Public License as published by the
* Free Software Foundation; either version 3 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 Affero 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 "BoundingIntervalHierarchy.h"
#include "Define.h"
#include <G3D/AABox.h>
#include <G3D/Ray.h>
#include <G3D/Vector3.h>
namespace VMAP
{
class TreeNode;
struct AreaInfo;
struct LocationInfo;
enum class ModelIgnoreFlags : uint32;
class MeshTriangle
{
public:
MeshTriangle() { }
MeshTriangle(uint32 na, uint32 nb, uint32 nc): idx0(na), idx1(nb), idx2(nc) { }
uint32 idx0{0};
uint32 idx1{0};
uint32 idx2{0};
};
class 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;
[[nodiscard]] 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() { }
uint32 iTilesX{0}; //!< number of tiles in x direction, each
uint32 iTilesY{0};
G3D::Vector3 iCorner; //!< the lower corner
uint32 iType{0}; //!< liquid type
float* iHeight{nullptr}; //!< (tilesX + 1)*(tilesY + 1) height values
uint8* iFlags{nullptr}; //!< info if liquid tile is used
};
/*! holding additional info for WMO group files */
class GroupModel
{
public:
GroupModel() { }
GroupModel(const GroupModel& other);
GroupModel(uint32 mogpFlags, uint32 groupWMOID, const G3D::AABox& bound):
iBound(bound), iMogpFlags(mogpFlags), iGroupWMOID(groupWMOID), iLiquid(nullptr) { }
~GroupModel() { delete iLiquid; }
//! pass mesh data to object and create BIH. Passed vectors get get swapped with old geometry!
void setMeshData(std::vector<G3D::Vector3>& vert, std::vector<MeshTriangle>& tri);
void setLiquidData(WmoLiquid*& liquid) { iLiquid = liquid; liquid = nullptr; }
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;
[[nodiscard]] uint32 GetLiquidType() const;
bool writeToFile(FILE* wf);
bool readFromFile(FILE* rf);
[[nodiscard]] const G3D::AABox& GetBound() const { return iBound; }
[[nodiscard]] uint32 GetMogpFlags() const { return iMogpFlags; }
[[nodiscard]] uint32 GetWmoID() const { return iGroupWMOID; }
void GetMeshData(std::vector<G3D::Vector3>& outVertices, std::vector<MeshTriangle>& outTriangles, WmoLiquid*& liquid);
protected:
G3D::AABox iBound;
uint32 iMogpFlags{0};// 0x8 outdor; 0x2000 indoor
uint32 iGroupWMOID{0};
std::vector<G3D::Vector3> vertices;
std::vector<MeshTriangle> triangles;
BIH meshTree;
WmoLiquid* iLiquid{nullptr};
};
/*! Holds a model (converted M2 or WMO) in its original coordinate space */
class WorldModel
{
public:
WorldModel() { }
//! pass group models to WorldModel and create BIH. Passed vector is swapped with old geometry!
void setGroupModels(std::vector<GroupModel>& models);
void setRootWmoID(uint32 id) { RootWMOID = id; }
bool IntersectRay(const G3D::Ray& ray, float& distance, bool stopAtFirstHit, ModelIgnoreFlags ignoreFlags) 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);
uint32 Flags;
protected:
uint32 RootWMOID{0};
std::vector<GroupModel> groupModels;
BIH groupTree;
};
} // namespace VMAP
#endif // _WORLDMODEL_H
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