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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 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 _MAPTREE_H
#define _MAPTREE_H
#include "BoundingIntervalHierarchy.h"
#include "Define.h"
#include <unordered_map>
namespace VMAP
{
class ModelInstance;
class GroupModel;
class VMapMgr2;
enum class ModelIgnoreFlags : uint32;
enum class LoadResult : uint8;
struct GroupLocationInfo
{
const GroupModel* hitModel = nullptr;
int32 rootId = -1;
};
struct LocationInfo
{
LocationInfo(): ground_Z(-G3D::inf()) { }
const ModelInstance* hitInstance{nullptr};
const GroupModel* hitModel{nullptr};
float ground_Z;
int32 rootId = -1;
};
class StaticMapTree
{
typedef std::unordered_map<uint32, bool> loadedTileMap;
typedef std::unordered_map<uint32, uint32> loadedSpawnMap;
private:
uint32 iMapID;
bool iIsTiled;
BIH iTree;
ModelInstance* iTreeValues; // the tree entries
uint32 iNTreeValues;
// Store all the map tile idents that are loaded for that map
// some maps are not splitted into tiles and we have to make sure, not removing the map before all tiles are removed
// empty tiles have no tile file, hence map with bool instead of just a set (consistency check)
loadedTileMap iLoadedTiles;
// stores <tree_index, reference_count> to invalidate tree values, unload map, and to be able to report errors
loadedSpawnMap iLoadedSpawns;
std::string iBasePath;
private:
bool GetIntersectionTime(const G3D::Ray& pRay, float& pMaxDist, bool StopAtFirstHit, ModelIgnoreFlags ignoreFlags) const;
//bool containsLoadedMapTile(unsigned int pTileIdent) const { return(iLoadedMapTiles.containsKey(pTileIdent)); }
public:
static std::string getTileFileName(uint32 mapID, uint32 tileX, uint32 tileY);
static uint32 packTileID(uint32 tileX, uint32 tileY) { return tileX << 16 | tileY; }
static void unpackTileID(uint32 ID, uint32& tileX, uint32& tileY) { tileX = ID >> 16; tileY = ID & 0xFF; }
static LoadResult CanLoadMap(const std::string& basePath, uint32 mapID, uint32 tileX, uint32 tileY);
StaticMapTree(uint32 mapID, const std::string& basePath);
~StaticMapTree();
[[nodiscard]] bool isInLineOfSight(const G3D::Vector3& pos1, const G3D::Vector3& pos2, ModelIgnoreFlags ignoreFlags) const;
bool GetObjectHitPos(const G3D::Vector3& pos1, const G3D::Vector3& pos2, G3D::Vector3& pResultHitPos, float pModifyDist) const;
[[nodiscard]] float getHeight(const G3D::Vector3& pPos, float maxSearchDist) const;
bool GetLocationInfo(const G3D::Vector3& pos, LocationInfo& info) const;
bool InitMap(const std::string& fname, VMapMgr2* vm);
void UnloadMap(VMapMgr2* vm);
bool LoadMapTile(uint32 tileX, uint32 tileY, VMapMgr2* vm);
void UnloadMapTile(uint32 tileX, uint32 tileY, VMapMgr2* vm);
[[nodiscard]] bool isTiled() const { return iIsTiled; }
[[nodiscard]] uint32 numLoadedTiles() const { return iLoadedTiles.size(); }
void GetModelInstances(ModelInstance*& models, uint32& count);
};
struct AreaInfo
{
AreaInfo(): ground_Z(-G3D::inf()) { }
bool result{false};
float ground_Z;
uint32 flags{0};
int32 adtId{0};
int32 rootId{0};
int32 groupId{0};
};
} // VMAP
#endif // _MAPTREE_H
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