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author | StormBytePP <stormbyte@gmail.com> | 2015-08-15 02:19:10 +0200 |
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committer | StormBytePP <stormbyte@gmail.com> | 2015-08-16 21:23:15 +0200 |
commit | 1f66d719f2cbbcb144b5080c89dd73fcae261798 (patch) | |
tree | 6a3778749b629c92de95cef7eb3d1d8c2630bdc4 /src/common/Collision/Management/MMapManager.cpp | |
parent | 222eaccc51b8d358c7b60d8def40d6461244ed31 (diff) |
Core/BuildSystem: Merge collision, debugging, threading, utilities and configuration into "common" which does not depend on shared anymore and moved database out of shared library
These changes enables to build tools only without even having MySQL installed
Diffstat (limited to 'src/common/Collision/Management/MMapManager.cpp')
-rw-r--r-- | src/common/Collision/Management/MMapManager.cpp | 339 |
1 files changed, 339 insertions, 0 deletions
diff --git a/src/common/Collision/Management/MMapManager.cpp b/src/common/Collision/Management/MMapManager.cpp new file mode 100644 index 00000000000..c93d4e0e751 --- /dev/null +++ b/src/common/Collision/Management/MMapManager.cpp @@ -0,0 +1,339 @@ +/* + * Copyright (C) 2008-2015 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/>. + */ + +#include "MMapManager.h" +#include "Log.h" +#include "Config.h" +#include "SharedDefines.h" + +namespace MMAP +{ + // ######################## MMapManager ######################## + MMapManager::~MMapManager() + { + for (MMapDataSet::iterator i = loadedMMaps.begin(); i != loadedMMaps.end(); ++i) + delete i->second; + + // by now we should not have maps loaded + // if we had, tiles in MMapData->mmapLoadedTiles, their actual data is lost! + } + + void MMapManager::InitializeThreadUnsafe(const std::vector<uint32>& mapIds) + { + // the caller must pass the list of all mapIds that will be used in the VMapManager2 lifetime + for (const uint32& mapId : mapIds) + loadedMMaps.insert(MMapDataSet::value_type(mapId, nullptr)); + + thread_safe_environment = false; + } + + MMapDataSet::const_iterator MMapManager::GetMMapData(uint32 mapId) const + { + // return the iterator if found or end() if not found/NULL + MMapDataSet::const_iterator itr = loadedMMaps.find(mapId); + if (itr != loadedMMaps.cend() && !itr->second) + itr = loadedMMaps.cend(); + + return itr; + } + + bool MMapManager::loadMapData(uint32 mapId) + { + // we already have this map loaded? + MMapDataSet::iterator itr = loadedMMaps.find(mapId); + if (itr != loadedMMaps.end()) + { + if (itr->second) + return true; + } + else + { + if (thread_safe_environment) + itr = loadedMMaps.insert(MMapDataSet::value_type(mapId, nullptr)).first; + else + ASSERT(false, "Invalid mapId %u passed to MMapManager after startup in thread unsafe environment", mapId); + } + + // load and init dtNavMesh - read parameters from file + std::string dataDir = sConfigMgr->GetStringDefault("DataDir", "./"); + uint32 pathLen = dataDir.length() + strlen("/mmaps/%03i.mmap") + 1; + char *fileName = new char[pathLen]; + snprintf(fileName, pathLen, (dataDir + "/mmaps/%03i.mmap").c_str(), mapId); + + FILE* file = fopen(fileName, "rb"); + if (!file) + { + TC_LOG_DEBUG("maps", "MMAP:loadMapData: Error: Could not open mmap file '%s'", fileName); + delete [] fileName; + return false; + } + + dtNavMeshParams params; + int count = fread(¶ms, sizeof(dtNavMeshParams), 1, file); + fclose(file); + if (count != 1) + { + TC_LOG_DEBUG("maps", "MMAP:loadMapData: Error: Could not read params from file '%s'", fileName); + delete [] fileName; + return false; + } + + dtNavMesh* mesh = dtAllocNavMesh(); + ASSERT(mesh); + if (dtStatusFailed(mesh->init(¶ms))) + { + dtFreeNavMesh(mesh); + TC_LOG_ERROR("maps", "MMAP:loadMapData: Failed to initialize dtNavMesh for mmap %03u from file %s", mapId, fileName); + delete [] fileName; + return false; + } + + delete [] fileName; + + TC_LOG_DEBUG("maps", "MMAP:loadMapData: Loaded %03i.mmap", mapId); + + // store inside our map list + MMapData* mmap_data = new MMapData(mesh); + mmap_data->mmapLoadedTiles.clear(); + + itr->second = mmap_data; + return true; + } + + uint32 MMapManager::packTileID(int32 x, int32 y) + { + return uint32(x << 16 | y); + } + + bool MMapManager::loadMap(const std::string& basePath, uint32 mapId, int32 x, int32 y) + { + // make sure the mmap is loaded and ready to load tiles + if (!loadMapData(mapId)) + return false; + + // get this mmap data + MMapData* mmap = loadedMMaps[mapId]; + ASSERT(mmap->navMesh); + + // check if we already have this tile loaded + uint32 packedGridPos = packTileID(x, y); + if (mmap->mmapLoadedTiles.find(packedGridPos) != mmap->mmapLoadedTiles.end()) + return false; + + // load this tile :: mmaps/MMMXXYY.mmtile + uint32 pathLen = basePath.length() + strlen("/%03i%02i%02i.mmtile") + 1; + char *fileName = new char[pathLen]; + + snprintf(fileName, pathLen, (basePath + "/%03i%02i%02i.mmtile").c_str(), mapId, x, y); + + FILE* file = fopen(fileName, "rb"); + if (!file) + { + TC_LOG_DEBUG("maps", "MMAP:loadMap: Could not open mmtile file '%s'", fileName); + delete [] fileName; + return false; + } + delete [] fileName; + + // read header + MmapTileHeader fileHeader; + if (fread(&fileHeader, sizeof(MmapTileHeader), 1, file) != 1 || fileHeader.mmapMagic != MMAP_MAGIC) + { + TC_LOG_ERROR("maps", "MMAP:loadMap: Bad header in mmap %03u%02i%02i.mmtile", mapId, x, y); + fclose(file); + return false; + } + + if (fileHeader.mmapVersion != MMAP_VERSION) + { + TC_LOG_ERROR("maps", "MMAP:loadMap: %03u%02i%02i.mmtile was built with generator v%i, expected v%i", + mapId, x, y, fileHeader.mmapVersion, MMAP_VERSION); + fclose(file); + return false; + } + + unsigned char* data = (unsigned char*)dtAlloc(fileHeader.size, DT_ALLOC_PERM); + ASSERT(data); + + size_t result = fread(data, fileHeader.size, 1, file); + if (!result) + { + TC_LOG_ERROR("maps", "MMAP:loadMap: Bad header or data in mmap %03u%02i%02i.mmtile", mapId, x, y); + fclose(file); + return false; + } + + fclose(file); + + dtMeshHeader* header = (dtMeshHeader*)data; + dtTileRef tileRef = 0; + + // memory allocated for data is now managed by detour, and will be deallocated when the tile is removed + if (dtStatusSucceed(mmap->navMesh->addTile(data, fileHeader.size, DT_TILE_FREE_DATA, 0, &tileRef))) + { + mmap->mmapLoadedTiles.insert(std::pair<uint32, dtTileRef>(packedGridPos, tileRef)); + ++loadedTiles; + TC_LOG_DEBUG("maps", "MMAP:loadMap: Loaded mmtile %03i[%02i, %02i] into %03i[%02i, %02i]", mapId, x, y, mapId, header->x, header->y); + return true; + } + else + { + TC_LOG_ERROR("maps", "MMAP:loadMap: Could not load %03u%02i%02i.mmtile into navmesh", mapId, x, y); + dtFree(data); + return false; + } + } + + bool MMapManager::unloadMap(uint32 mapId, int32 x, int32 y) + { + // check if we have this map loaded + MMapDataSet::const_iterator itr = GetMMapData(mapId); + if (itr == loadedMMaps.end()) + { + // file may not exist, therefore not loaded + TC_LOG_DEBUG("maps", "MMAP:unloadMap: Asked to unload not loaded navmesh map. %03u%02i%02i.mmtile", mapId, x, y); + return false; + } + + MMapData* mmap = itr->second; + + // check if we have this tile loaded + uint32 packedGridPos = packTileID(x, y); + if (mmap->mmapLoadedTiles.find(packedGridPos) == mmap->mmapLoadedTiles.end()) + { + // file may not exist, therefore not loaded + TC_LOG_DEBUG("maps", "MMAP:unloadMap: Asked to unload not loaded navmesh tile. %03u%02i%02i.mmtile", mapId, x, y); + return false; + } + + dtTileRef tileRef = mmap->mmapLoadedTiles[packedGridPos]; + + // unload, and mark as non loaded + if (dtStatusFailed(mmap->navMesh->removeTile(tileRef, NULL, NULL))) + { + // this is technically a memory leak + // if the grid is later reloaded, dtNavMesh::addTile will return error but no extra memory is used + // we cannot recover from this error - assert out + TC_LOG_ERROR("maps", "MMAP:unloadMap: Could not unload %03u%02i%02i.mmtile from navmesh", mapId, x, y); + ASSERT(false); + } + else + { + mmap->mmapLoadedTiles.erase(packedGridPos); + --loadedTiles; + TC_LOG_DEBUG("maps", "MMAP:unloadMap: Unloaded mmtile %03i[%02i, %02i] from %03i", mapId, x, y, mapId); + return true; + } + + return false; + } + + bool MMapManager::unloadMap(uint32 mapId) + { + MMapDataSet::iterator itr = loadedMMaps.find(mapId); + if (itr == loadedMMaps.end() || !itr->second) + { + // file may not exist, therefore not loaded + TC_LOG_DEBUG("maps", "MMAP:unloadMap: Asked to unload not loaded navmesh map %03u", mapId); + return false; + } + + // unload all tiles from given map + MMapData* mmap = itr->second; + for (MMapTileSet::iterator i = mmap->mmapLoadedTiles.begin(); i != mmap->mmapLoadedTiles.end(); ++i) + { + uint32 x = (i->first >> 16); + uint32 y = (i->first & 0x0000FFFF); + if (dtStatusFailed(mmap->navMesh->removeTile(i->second, NULL, NULL))) + TC_LOG_ERROR("maps", "MMAP:unloadMap: Could not unload %03u%02i%02i.mmtile from navmesh", mapId, x, y); + else + { + --loadedTiles; + TC_LOG_DEBUG("maps", "MMAP:unloadMap: Unloaded mmtile %03i[%02i, %02i] from %03i", mapId, x, y, mapId); + } + } + + delete mmap; + itr->second = nullptr; + TC_LOG_DEBUG("maps", "MMAP:unloadMap: Unloaded %03i.mmap", mapId); + + return true; + } + + bool MMapManager::unloadMapInstance(uint32 mapId, uint32 instanceId) + { + // check if we have this map loaded + MMapDataSet::const_iterator itr = GetMMapData(mapId); + if (itr == loadedMMaps.end()) + { + // file may not exist, therefore not loaded + TC_LOG_DEBUG("maps", "MMAP:unloadMapInstance: Asked to unload not loaded navmesh map %03u", mapId); + return false; + } + + MMapData* mmap = itr->second; + if (mmap->navMeshQueries.find(instanceId) == mmap->navMeshQueries.end()) + { + TC_LOG_DEBUG("maps", "MMAP:unloadMapInstance: Asked to unload not loaded dtNavMeshQuery mapId %03u instanceId %u", mapId, instanceId); + return false; + } + + dtNavMeshQuery* query = mmap->navMeshQueries[instanceId]; + + dtFreeNavMeshQuery(query); + mmap->navMeshQueries.erase(instanceId); + TC_LOG_DEBUG("maps", "MMAP:unloadMapInstance: Unloaded mapId %03u instanceId %u", mapId, instanceId); + + return true; + } + + dtNavMesh const* MMapManager::GetNavMesh(uint32 mapId) + { + MMapDataSet::const_iterator itr = GetMMapData(mapId); + if (itr == loadedMMaps.end()) + return NULL; + + return itr->second->navMesh; + } + + dtNavMeshQuery const* MMapManager::GetNavMeshQuery(uint32 mapId, uint32 instanceId) + { + MMapDataSet::const_iterator itr = GetMMapData(mapId); + if (itr == loadedMMaps.end()) + return NULL; + + MMapData* mmap = itr->second; + if (mmap->navMeshQueries.find(instanceId) == mmap->navMeshQueries.end()) + { + // allocate mesh query + dtNavMeshQuery* query = dtAllocNavMeshQuery(); + ASSERT(query); + if (dtStatusFailed(query->init(mmap->navMesh, 1024))) + { + dtFreeNavMeshQuery(query); + TC_LOG_ERROR("maps", "MMAP:GetNavMeshQuery: Failed to initialize dtNavMeshQuery for mapId %03u instanceId %u", mapId, instanceId); + return NULL; + } + + TC_LOG_DEBUG("maps", "MMAP:GetNavMeshQuery: created dtNavMeshQuery for mapId %03u instanceId %u", mapId, instanceId); + mmap->navMeshQueries.insert(std::pair<uint32, dtNavMeshQuery*>(instanceId, query)); + } + + return mmap->navMeshQueries[instanceId]; + } +} |