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#ifndef OPENMW_COMPONENTS_DETOURNAVIGATOR_TILECACHEDRECASTMESHMANAGER_H
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#define OPENMW_COMPONENTS_DETOURNAVIGATOR_TILECACHEDRECASTMESHMANAGER_H
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#include "cachedrecastmeshmanager.hpp"
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#include "tileposition.hpp"
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#include "settingsutils.hpp"
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#include "gettilespositions.hpp"
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#include "version.hpp"
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#include <components/misc/guarded.hpp>
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#include <algorithm>
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#include <map>
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#include <mutex>
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#include <vector>
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namespace DetourNavigator
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{
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class TileCachedRecastMeshManager
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{
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public:
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TileCachedRecastMeshManager(const Settings& settings);
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bool addObject(const ObjectId id, const CollisionShape& shape, const btTransform& transform,
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const AreaType areaType);
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template <class OnChangedTile>
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bool updateObject(const ObjectId id, const CollisionShape& shape, const btTransform& transform,
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const AreaType areaType, OnChangedTile&& onChangedTile)
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{
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const auto object = mObjectsTilesPositions.find(id);
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if (object == mObjectsTilesPositions.end())
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return false;
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auto& currentTiles = object->second;
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const auto border = getBorderSize(mSettings);
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bool changed = false;
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std::vector<TilePosition> newTiles;
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{
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auto tiles = mTiles.lock();
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const auto onTilePosition = [&] (const TilePosition& tilePosition)
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{
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if (std::binary_search(currentTiles.begin(), currentTiles.end(), tilePosition))
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{
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newTiles.push_back(tilePosition);
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if (updateTile(id, transform, areaType, tilePosition, tiles.get()))
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{
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onChangedTile(tilePosition);
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changed = true;
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}
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}
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else if (addTile(id, shape, transform, areaType, tilePosition, border, tiles.get()))
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{
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newTiles.push_back(tilePosition);
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onChangedTile(tilePosition);
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changed = true;
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}
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};
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getTilesPositions(shape.getShape(), transform, mSettings, onTilePosition);
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std::sort(newTiles.begin(), newTiles.end());
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for (const auto& tile : currentTiles)
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{
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if (!std::binary_search(newTiles.begin(), newTiles.end(), tile) && removeTile(id, tile, tiles.get()))
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{
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onChangedTile(tile);
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changed = true;
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}
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}
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}
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if (changed)
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{
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currentTiles = std::move(newTiles);
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++mRevision;
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}
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return changed;
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}
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std::optional<RemovedRecastMeshObject> removeObject(const ObjectId id);
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bool addWater(const osg::Vec2i& cellPosition, const int cellSize, const btTransform& transform);
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std::optional<RecastMeshManager::Water> removeWater(const osg::Vec2i& cellPosition);
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std::shared_ptr<RecastMesh> getMesh(const TilePosition& tilePosition);
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bool hasTile(const TilePosition& tilePosition);
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template <class Function>
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void forEachTile(Function&& function)
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{
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for (auto& [tilePosition, recastMeshManager] : *mTiles.lock())
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function(tilePosition, *recastMeshManager);
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}
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std::size_t getRevision() const;
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void reportNavMeshChange(const TilePosition& tilePosition, Version recastMeshVersion, Version navMeshVersion);
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private:
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using TilesMap = std::map<TilePosition, std::shared_ptr<CachedRecastMeshManager>>;
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const Settings& mSettings;
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Misc::ScopeGuarded<TilesMap> mTiles;
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std::unordered_map<ObjectId, std::vector<TilePosition>> mObjectsTilesPositions;
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std::map<osg::Vec2i, std::vector<TilePosition>> mWaterTilesPositions;
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std::size_t mRevision = 0;
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std::size_t mTilesGeneration = 0;
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bool addTile(const ObjectId id, const CollisionShape& shape, const btTransform& transform,
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const AreaType areaType, const TilePosition& tilePosition, float border, TilesMap& tiles);
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bool updateTile(const ObjectId id, const btTransform& transform, const AreaType areaType,
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const TilePosition& tilePosition, TilesMap& tiles);
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std::optional<RemovedRecastMeshObject> removeTile(const ObjectId id, const TilePosition& tilePosition,
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TilesMap& tiles);
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};
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}
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#endif
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