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/*
* This file is part of the TrinityCore 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 TRINITYCORE_VMAP_MANAGER2_H
#define TRINITYCORE_VMAP_MANAGER2_H
#include "Define.h"
#include "ModelIgnoreFlags.h"
#include "Optional.h"
#include <memory>
#include <mutex>
#include <span>
#include <string>
#include <unordered_map>
#include <vector>
//===========================================================
/**
This is the main Class to manage loading and unloading of maps, line of sight, height calculation and so on.
For each map or map tile to load it reads a directory file that contains the ModelContainer files used by this map or map tile.
Each global map or instance has its own dynamic BSP-Tree.
The loaded ModelContainers are included in one of these BSP-Trees.
Additionally a table to match map ids and map names is used.
*/
//===========================================================
namespace VMAP
{
class ManagedModel;
class ModelInstance;
class StaticMapTree;
class WorldModel;
typedef std::unordered_map<uint32, std::unique_ptr<StaticMapTree>> InstanceTreeMap;
typedef std::unordered_map<std::string, std::weak_ptr<ManagedModel>> ModelFileMap;
enum DisableTypes : uint8
{
VMAP_DISABLE_AREAFLAG = 0x1,
VMAP_DISABLE_HEIGHT = 0x2,
VMAP_DISABLE_LOS = 0x4,
VMAP_DISABLE_LIQUIDSTATUS = 0x8
};
enum class LoadResult : uint8
{
Success,
FileNotFound,
VersionMismatch,
ReadFromFileFailed,
DisabledInConfig
};
#define VMAP_INVALID_HEIGHT -100000.0f // for check
#define VMAP_INVALID_HEIGHT_VALUE -200000.0f // real assigned value in unknown height case
struct AreaAndLiquidData
{
struct AreaInfo
{
AreaInfo() = default;
AreaInfo(int32 _groupId, int32 _adtId, int32 _rootId, uint32 _mogpFlags, uint32 _uniqueId)
: groupId(_groupId), adtId(_adtId), rootId(_rootId), mogpFlags(_mogpFlags), uniqueId(_uniqueId) { }
int32 groupId = 0;
int32 adtId = 0;
int32 rootId = 0;
uint32 mogpFlags = 0;
uint32 uniqueId = 0;
};
struct LiquidInfo
{
LiquidInfo() = default;
LiquidInfo(uint32 _type, float _level) : type(_type), level(_level) { }
uint32 type = 0;
float level = 0.0f;
};
float floorZ = VMAP_INVALID_HEIGHT;
Optional<AreaInfo> areaInfo;
Optional<LiquidInfo> liquidInfo;
};
class TC_COMMON_API VMapManager
{
protected:
bool iEnableLineOfSightCalc;
bool iEnableHeightCalc;
bool thread_safe_environment;
// Tree to check collision
ModelFileMap iLoadedModelFiles;
InstanceTreeMap iInstanceMapTrees;
std::unordered_map<uint32, uint32> iParentMapData;
// Mutex for iLoadedModelFiles
std::mutex LoadedModelFilesLock;
InstanceTreeMap::const_iterator GetMapTree(uint32 mapId) const;
public:
// public for debug
static std::string getMapFileName(uint32 mapId);
static std::string getTileFileName(uint32 mapID, uint32 tileX, uint32 tileY, std::string_view extension);
VMapManager();
VMapManager(VMapManager const&) = delete;
VMapManager(VMapManager&&) = delete;
VMapManager& operator=(VMapManager const&) = delete;
VMapManager& operator=(VMapManager&&) = delete;
~VMapManager();
void InitializeThreadUnsafe(std::unordered_map<uint32, std::vector<uint32>> const& mapData);
void InitializeThreadUnsafe(uint32 mapId, int32 parentMapId);
/**
Enable/disable LOS calculation
It is enabled by default. If it is enabled in mid game the maps have to loaded manualy
*/
void setEnableLineOfSightCalc(bool enableLineOfSightCalc) { iEnableLineOfSightCalc = enableLineOfSightCalc; }
/**
Enable/disable model height calculation
It is enabled by default. If it is enabled in mid game the maps have to loaded manualy
*/
void setEnableHeightCalc(bool enableHeightCalc) { iEnableHeightCalc = enableHeightCalc; }
bool isLineOfSightCalcEnabled() const { return iEnableLineOfSightCalc; }
bool isHeightCalcEnabled() const { return iEnableHeightCalc; }
bool isMapLoadingEnabled() const { return iEnableLineOfSightCalc || iEnableHeightCalc; }
LoadResult loadMap(std::string const& basePath, uint32 mapId, uint32 x, uint32 y);
void unloadMap(uint32 mapId, uint32 x, uint32 y);
void unloadMap(uint32 mapId);
bool isInLineOfSight(uint32 mapId, float x1, float y1, float z1, float x2, float y2, float z2, ModelIgnoreFlags ignoreFlags);
/**
test if we hit an object. return true if we hit one. rx, ry, rz will hold the hit position or the dest position, if no intersection was found
return a position, that is modifyDist closer to the origin
*/
bool getObjectHitPos(uint32 mapId, float x1, float y1, float z1, float x2, float y2, float z2, float& rx, float& ry, float& rz, float modifyDist);
float getHeight(uint32 mapId, float x, float y, float z, float maxSearchDist);
/**
Query world model area info.
*/
bool getAreaAndLiquidData(uint32 mapId, float x, float y, float z, Optional<uint8> reqLiquidType, AreaAndLiquidData& data) const;
std::shared_ptr<WorldModel> acquireModelInstance(std::string const& basepath, std::string const& filename);
void releaseModelInstance(std::string const& filename);
// what's the use of this? o.O
static std::string getDirFileName(uint32 mapId, uint32 x, uint32 y)
{
return getTileFileName(mapId, x, y, "vmtile");
}
LoadResult existsMap(std::string const& basePath, uint32 mapId, uint32 x, uint32 y);
std::span<ModelInstance const> getModelsOnMap(uint32 mapId) const;
int32 getParentMapId(uint32 mapId) const;
typedef uint32(*GetLiquidFlagsFn)(uint32 liquidType);
GetLiquidFlagsFn GetLiquidFlagsPtr;
typedef bool(*IsVMAPDisabledForFn)(uint32 entry, uint8 flags);
IsVMAPDisabledForFn IsVMAPDisabledForPtr;
};
}
#endif // TRINITYCORE_VMAP_MANAGER2_H
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