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If object is too big iteration over all tiles covering it can take too much time. Limit bounds to a square around a player position to cover only tiles that will be present in navmesh based on max tiles number option. Each object is associated with a set of tiles its present in. Culling can reduce this set but it has to be update when bounds change position. Do this in TileCachedRecastMeshManager::setBounds updating the set and adding/removing objects to the corresponding CachedRecastMeshManagers.
89 lines
3.1 KiB
C++
89 lines
3.1 KiB
C++
#ifndef OPENMW_COMPONENTS_DETOURNAVIGATOR_NAVMESHMANAGER_H
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#define OPENMW_COMPONENTS_DETOURNAVIGATOR_NAVMESHMANAGER_H
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#include "asyncnavmeshupdater.hpp"
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#include "cachedrecastmeshmanager.hpp"
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#include "offmeshconnectionsmanager.hpp"
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#include "recastmeshtiles.hpp"
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#include "waitconditiontype.hpp"
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#include "heightfieldshape.hpp"
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#include <BulletCollision/CollisionShapes/btHeightfieldTerrainShape.h>
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#include <osg/Vec3f>
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#include <map>
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#include <memory>
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class dtNavMesh;
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namespace DetourNavigator
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{
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class NavMeshManager
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{
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public:
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explicit NavMeshManager(const Settings& settings, std::unique_ptr<NavMeshDb>&& db);
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void setWorldspace(std::string_view worldspace);
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void updateBounds(const osg::Vec3f& playerPosition);
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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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bool updateObject(const ObjectId id, const CollisionShape& shape, const btTransform& transform,
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const AreaType areaType);
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bool removeObject(const ObjectId id);
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void addAgent(const osg::Vec3f& agentHalfExtents);
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bool addWater(const osg::Vec2i& cellPosition, int cellSize, float level);
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bool removeWater(const osg::Vec2i& cellPosition);
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bool addHeightfield(const osg::Vec2i& cellPosition, int cellSize, const HeightfieldShape& shape);
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bool removeHeightfield(const osg::Vec2i& cellPosition);
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bool reset(const osg::Vec3f& agentHalfExtents);
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void addOffMeshConnection(const ObjectId id, const osg::Vec3f& start, const osg::Vec3f& end, const AreaType areaType);
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void removeOffMeshConnections(const ObjectId id);
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void update(const osg::Vec3f& playerPosition, const osg::Vec3f& agentHalfExtents);
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void wait(Loading::Listener& listener, WaitConditionType waitConditionType);
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SharedNavMeshCacheItem getNavMesh(const osg::Vec3f& agentHalfExtents) const;
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std::map<osg::Vec3f, SharedNavMeshCacheItem> getNavMeshes() const;
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void reportStats(unsigned int frameNumber, osg::Stats& stats) const;
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RecastMeshTiles getRecastMeshTiles() const;
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private:
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const Settings& mSettings;
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std::string mWorldspace;
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TileCachedRecastMeshManager mRecastMeshManager;
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OffMeshConnectionsManager mOffMeshConnectionsManager;
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AsyncNavMeshUpdater mAsyncNavMeshUpdater;
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std::map<osg::Vec3f, SharedNavMeshCacheItem> mCache;
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std::map<osg::Vec3f, std::map<TilePosition, ChangeType>> mChangedTiles;
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std::size_t mGenerationCounter = 0;
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std::map<osg::Vec3f, TilePosition> mPlayerTile;
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std::map<osg::Vec3f, std::size_t> mLastRecastMeshManagerRevision;
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void addChangedTiles(const btCollisionShape& shape, const btTransform& transform, const ChangeType changeType);
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void addChangedTiles(const int cellSize, const btVector3& shift, const ChangeType changeType);
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void addChangedTile(const TilePosition& tilePosition, const ChangeType changeType);
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SharedNavMeshCacheItem getCached(const osg::Vec3f& agentHalfExtents) const;
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};
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}
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#endif
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