advtrains.git - Advtrains mod for minetest.

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/* Minetest Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com> This program is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef MAP_HEADER #define MAP_HEADER #include <iostream> #include <sstream> #include <set> #include <map> #include <list> #include "irrlichttypes_bloated.h" #include "mapnode.h" #include "constants.h" #include "voxel.h" #include "modifiedstate.h" #include "util/container.h" #include "util/cpp11_container.h" #include "nodetimer.h" #include "map_settings_manager.h" class Settings; class Database; class ClientMap; class MapSector; class ServerMapSector; class MapBlock; class NodeMetadata; class IGameDef; class IRollbackManager; class EmergeManager; class ServerEnvironment; struct BlockMakeData; /* MapEditEvent */ #define MAPTYPE_BASE 0 #define MAPTYPE_SERVER 1 #define MAPTYPE_CLIENT 2 enum MapEditEventType{ // Node added (changed from air or something else to something) MEET_ADDNODE, // Node removed (changed to air) MEET_REMOVENODE, // Node swapped (changed without metadata change) MEET_SWAPNODE, // Node metadata of block changed (not knowing which node exactly) // p stores block coordinate MEET_BLOCK_NODE_METADATA_CHANGED, // Anything else (modified_blocks are set unsent) MEET_OTHER }; struct MapEditEvent { MapEditEventType type; v3s16 p; MapNode n; std::set<v3s16> modified_blocks; u16 already_known_by_peer; MapEditEvent(): type(MEET_OTHER), n(CONTENT_AIR), already_known_by_peer(0) { } MapEditEvent * clone() { MapEditEvent *event = new MapEditEvent(); event->type = type; event->p = p; event->n = n; event->modified_blocks = modified_blocks; return event; } VoxelArea getArea() { switch(type){ case MEET_ADDNODE: return VoxelArea(p); case MEET_REMOVENODE: return VoxelArea(p); case MEET_SWAPNODE: return VoxelArea(p); case MEET_BLOCK_NODE_METADATA_CHANGED: { v3s16 np1 = p*MAP_BLOCKSIZE; v3s16 np2 = np1 + v3s16(1,1,1)*MAP_BLOCKSIZE - v3s16(1,1,1); return VoxelArea(np1, np2); } case MEET_OTHER: { VoxelArea a; for(std::set<v3s16>::iterator i = modified_blocks.begin(); i != modified_blocks.end(); ++i) { v3s16 p = *i; v3s16 np1 = p*MAP_BLOCKSIZE; v3s16 np2 = np1 + v3s16(1,1,1)*MAP_BLOCKSIZE - v3s16(1,1,1); a.addPoint(np1); a.addPoint(np2); } return a; } } return VoxelArea(); } }; class MapEventReceiver { public: // event shall be deleted by caller after the call. virtual void onMapEditEvent(MapEditEvent *event) = 0; }; class Map /*: public NodeContainer*/ { public: Map(std::ostream &dout, IGameDef *gamedef); virtual ~Map(); /*virtual u16 nodeContainerId() const { return NODECONTAINER_ID_MAP; }*/ virtual s32 mapType() const { return MAPTYPE_BASE; } /* Drop (client) or delete (server) the map. */ virtual void drop() { delete this; } void addEventReceiver(MapEventReceiver *event_receiver); void removeEventReceiver(MapEventReceiver *event_receiver); // event shall be deleted by caller after the call. void dispatchEvent(MapEditEvent *event); // On failure returns NULL MapSector * getSectorNoGenerateNoExNoLock(v2s16 p2d); // Same as the above (there exists no lock anymore) MapSector * getSectorNoGenerateNoEx(v2s16 p2d); // On failure throws InvalidPositionException MapSector * getSectorNoGenerate(v2s16 p2d); // Gets an existing sector or creates an empty one //MapSector * getSectorCreate(v2s16 p2d); /* This is overloaded by ClientMap and ServerMap to allow their differing fetch methods. */ virtual MapSector * emergeSector(v2s16 p){ return NULL; } virtual MapSector * emergeSector(v2s16 p, std::map<v3s16, MapBlock*> &changed_blocks){ return NULL; } // Returns InvalidPositionException if not found MapBlock * getBlockNoCreate(v3s16 p); // Returns NULL if not found MapBlock * getBlockNoCreateNoEx(v3s16 p); /* Server overrides */ virtual MapBlock * emergeBlock(v3s16 p, bool create_blank=true) { return getBlockNoCreateNoEx(p); } // Returns InvalidPositionException if not found bool isNodeUnderground(v3s16 p); bool isValidPosition(v3s16 p); // throws InvalidPositionException if not found void setNode(v3s16 p, MapNode & n); // Returns a CONTENT_IGNORE node if not found // If is_valid_position is not NULL then this will be set to true if the // position is valid, otherwise false MapNode getNodeNoEx(v3s16 p, bool *is_valid_position = NULL); void unspreadLight(enum LightBank bank, std::map<v3s16, u8> & from_nodes, std::set<v3s16> & light_sources, std::map<v3s16, MapBlock*> & modified_blocks); void spreadLight(enum LightBank bank, std::set<v3s16> & from_nodes, std::map<v3s16, MapBlock*> & modified_blocks); void updateLighting(enum LightBank bank, std::map<v3s16, MapBlock*> & a_blocks, std::map<v3s16, MapBlock*> & modified_blocks); void updateLighting(std::map<v3s16, MapBlock*> & a_blocks, std::map<v3s16, MapBlock*> & modified_blocks); /* These handle lighting but not faces. */ void addNodeAndUpdate(v3s16 p, MapNode n, std::map<v3s16, MapBlock*> &modified_blocks, bool remove_metadata = true); void removeNodeAndUpdate(v3s16 p, std::map<v3s16, MapBlock*> &modified_blocks); /* Wrappers for the latter ones. These emit events. Return true if succeeded, false if not. */ bool addNodeWithEvent(v3s16 p, MapNode n, bool remove_metadata = true); bool removeNodeWithEvent(v3s16 p); /* Takes the blocks at the edges into account */ bool getDayNightDiff(v3s16 blockpos); //core::aabbox3d<s16> getDisplayedBlockArea(); //bool updateChangedVisibleArea(); // Call these before and after saving of many blocks virtual void beginSave() { return; } virtual void endSave() { return; } virtual void save(ModifiedState save_level) { FATAL_ERROR("FIXME"); } // Server implements these. // Client leaves them as no-op. virtual bool saveBlock(MapBlock *block) { return false; } virtual bool deleteBlock(v3s16 blockpos) { return false; } /* Updates usage timers and unloads unused blocks and sectors. Saves modified blocks before unloading on MAPTYPE_SERVER. */ void timerUpdate(float dtime, float unload_timeout, u32 max_loaded_blocks, std::vector<v3s16> *unloaded_blocks=NULL); /* Unloads all blocks with a zero refCount(). Saves modified blocks before unloading on MAPTYPE_SERVER. */ void unloadUnreferencedBlocks(std::vector<v3s16> *unloaded_blocks=NULL); // Deletes sectors and their blocks from memory // Takes cache into account // If deleted sector is in sector cache, clears cache void deleteSectors(std::vector<v2s16> &list); // For debug printing. Prints "Map: ", "ServerMap: " or "ClientMap: " virtual void PrintInfo(std::ostream &out); void transformLiquids(std::map<v3s16, MapBlock*> & modified_blocks); /* Node metadata These are basically coordinate wrappers to MapBlock */ std::vector<v3s16> findNodesWithMetadata(v3s16 p1, v3s16 p2); NodeMetadata *getNodeMetadata(v3s16 p); /** * Sets metadata for a node. * This method sets the metadata for a given node. * On success, it returns @c true and the object pointed to * by @p meta is then managed by the system and should * not be deleted by the caller. * * In case of failure, the method returns @c false and the * caller is still responsible for deleting the object! * * @param p node coordinates * @param meta pointer to @c NodeMetadata object * @return @c true on success, false on failure */ bool setNodeMetadata(v3s16 p, NodeMetadata *meta); void removeNodeMetadata(v3s16 p); /* Node Timers These are basically coordinate wrappers to MapBlock */ NodeTimer getNodeTimer(v3s16 p); void setNodeTimer(const NodeTimer &t); void removeNodeTimer(v3s16 p); /* Misc. */ std::map<v2s16, MapSector*> *getSectorsPtr(){return &m_sectors;} /* Variables */ void transforming_liquid_add(v3s16 p); s32 transforming_liquid_size(); protected: friend class LuaVoxelManip; std::ostream &m_dout; // A bit deprecated, could be removed IGameDef *m_gamedef; std::set<MapEventReceiver*> m_event_receivers; std::map<v2s16, MapSector*> m_sectors; // Be sure to set this to NULL when the cached sector is deleted MapSector *m_sector_cache; v2s16 m_sector_cache_p; // Queued transforming water nodes UniqueQueue<v3s16> m_transforming_liquid; private: f32 m_transforming_liquid_loop_count_multiplier; u32 m_unprocessed_count; u32 m_inc_trending_up_start_time; // milliseconds bool m_queue_size_timer_started; DISABLE_CLASS_COPY(Map); }; /* ServerMap This is the only map class that is able to generate map. */ class ServerMap : public Map { public: /* savedir: directory to which map data should be saved */ ServerMap(std::string savedir, IGameDef *gamedef, EmergeManager *emerge); ~ServerMap(); s32 mapType() const { return MAPTYPE_SERVER; } /* Get a sector from somewhere. - Check memory - Check disk (doesn't load blocks) - Create blank one */ ServerMapSector *createSector(v2s16 p); /* Blocks are generated by using these and makeBlock(). */ bool initBlockMake(v3s16 blockpos, BlockMakeData *data); void finishBlockMake(BlockMakeData *data, std::map<v3s16, MapBlock*> *changed_blocks); /* Get a block from somewhere. - Memory - Create blank */ MapBlock *createBlock(v3s16 p); /* Forcefully get a block from somewhere. - Memory - Load from disk - Create blank filled with CONTENT_IGNORE */ MapBlock *emergeBlock(v3s16 p, bool create_blank=true); /* Try to get a block. If it does not exist in memory, add it to the emerge queue. - Memory - Emerge Queue (deferred disk or generate) */ MapBlock *getBlockOrEmerge(v3s16 p3d); // Carries out any initialization necessary before block is sent void prepareBlock(MapBlock *block); // Helper for placing objects on ground level s16 findGroundLevel(v2s16 p2d); /* Misc. helper functions for fiddling with directory and file names when saving */ void createDirs(std::string path); // returns something like "map/sectors/xxxxxxxx" std::string getSectorDir(v2s16 pos, int layout = 2); // dirname: final directory name v2s16 getSectorPos(std::string dirname); v3s16 getBlockPos(std::string sectordir, std::string blockfile); static std::string getBlockFilename(v3s16 p); /* Database functions */ static Database *createDatabase(const std::string &name, const std::string &savedir, Settings &conf); // Verify we can read/write to the database void verifyDatabase(); // Returns true if the database file does not exist bool loadFromFolders(); // Call these before and after saving of blocks void beginSave(); void endSave(); void save(ModifiedState save_level); void listAllLoadableBlocks(std::vector<v3s16> &dst); void listAllLoadedBlocks(std::vector<v3s16> &dst); MapgenParams *getMapgenParams(); /*void saveChunkMeta(); void loadChunkMeta();*/ // The sector mutex should be locked when calling most of these // This only saves sector-specific data such as the heightmap // (no MapBlocks) // DEPRECATED? Sectors have no metadata anymore. void saveSectorMeta(ServerMapSector *sector); MapSector* loadSectorMeta(std::string dirname, bool save_after_load); bool loadSectorMeta(v2s16 p2d); // Full load of a sector including all blocks. // returns true on success, false on failure. bool loadSectorFull(v2s16 p2d); // If sector is not found in memory, try to load it from disk. // Returns true if sector now resides in memory //bool deFlushSector(v2s16 p2d); bool saveBlock(MapBlock *block); static bool saveBlock(MapBlock *block, Database *db); // This will generate a sector with getSector if not found. void loadBlock(std::string sectordir, std::string blockfile, MapSector *sector, bool save_after_load=false); MapBlock* loadBlock(v3s16 p); // Database version void loadBlock(std::string *blob, v3s16 p3d, MapSector *sector, bool save_after_load=false); bool deleteBlock(v3s16 blockpos); void updateVManip(v3s16 pos); // For debug printing virtual void PrintInfo(std::ostream &out); bool isSavingEnabled(){ return m_map_saving_enabled; } u64 getSeed(); s16 getWaterLevel(); MapSettingsManager settings_mgr; private: // Emerge manager EmergeManager *m_emerge; std::string m_savedir; bool m_map_saving_enabled; #if 0 // Chunk size in MapSectors // If 0, chunks are disabled. s16 m_chunksize; // Chunks core::map<v2s16, MapChunk*> m_chunks; #endif /* Metadata is re-written on disk only if this is true. This is reset to false when written on disk. */ bool m_map_metadata_changed; Database *dbase; }; #define VMANIP_BLOCK_DATA_INEXIST 1 #define VMANIP_BLOCK_CONTAINS_CIGNORE 2 class MMVManip : public VoxelManipulator { public: MMVManip(Map *map); virtual ~MMVManip(); virtual void clear() { VoxelManipulator::clear(); m_loaded_blocks.clear(); } void setMap(Map *map)


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