3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU Lesser General Public License as published by
7 the Free Software Foundation; either version 2.1 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public License along
16 with this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22 #include "clientenvironment.h"
23 #include "irrlichttypes_extrabloated.h"
28 #include <unordered_set>
29 #include "clientobject.h"
31 #include "inventorymanager.h"
32 #include "localplayer.h"
33 #include "client/hud.h"
34 #include "particles.h"
36 #include "tileanimation.h"
37 #include "mesh_generator_thread.h"
38 #include "network/address.h"
39 #include "network/peerhandler.h"
42 #define CLIENT_CHAT_MESSAGE_LIMIT_PER_10S 10.0f
48 class IWritableTextureSource;
49 class IWritableShaderSource;
50 class IWritableItemDefManager;
53 //class IWritableCraftDefManager;
54 class ClientMediaDownloader;
55 struct MapDrawControl;
61 struct MinimapMapblock;
68 enum LocalClientState {
81 PacketCounter() = default;
85 std::map<u16, u16>::iterator n = m_packets.find(command);
86 if(n == m_packets.end())
88 m_packets[command] = 1;
98 for (auto &m_packet : m_packets) {
103 void print(std::ostream &o)
105 for (const auto &m_packet : m_packets) {
106 o << "cmd "<< m_packet.first <<" count "<< m_packet.second << std::endl;
112 std::map<u16, u16> m_packets;
115 class ClientScripting;
118 class Client : public con::PeerHandler, public InventoryManager, public IGameDef
122 NOTE: Nothing is thread-safe here.
126 const char *playername,
127 const std::string &password,
128 const std::string &address_name,
129 MapDrawControl &control,
130 IWritableTextureSource *tsrc,
131 IWritableShaderSource *shsrc,
132 IWritableItemDefManager *itemdef,
133 NodeDefManager *nodedef,
134 ISoundManager *sound,
135 MtEventManager *event,
141 DISABLE_CLASS_COPY(Client);
143 // Load local mods into memory
144 void scanModSubfolder(const std::string &mod_name, const std::string &mod_path,
145 std::string mod_subpath);
146 inline void scanModIntoMemory(const std::string &mod_name, const std::string &mod_path)
148 scanModSubfolder(mod_name, mod_path, "");
152 request all threads managed by client to be stopped
160 The name of the local player should already be set when
161 calling this, as it is sent in the initialization.
163 void connect(Address address, bool is_local_server);
166 Stuff that references the environment is valid only as
167 long as this is not called. (eg. Players)
168 If this throws a PeerNotFoundException, the connection has
171 void step(float dtime);
177 void handleCommand(NetworkPacket* pkt);
179 void handleCommand_Null(NetworkPacket* pkt) {};
180 void handleCommand_Deprecated(NetworkPacket* pkt);
181 void handleCommand_Hello(NetworkPacket* pkt);
182 void handleCommand_AuthAccept(NetworkPacket* pkt);
183 void handleCommand_AcceptSudoMode(NetworkPacket* pkt);
184 void handleCommand_DenySudoMode(NetworkPacket* pkt);
185 void handleCommand_AccessDenied(NetworkPacket* pkt);
186 void handleCommand_RemoveNode(NetworkPacket* pkt);
187 void handleCommand_AddNode(NetworkPacket* pkt);
188 void handleCommand_NodemetaChanged(NetworkPacket *pkt);
189 void handleCommand_BlockData(NetworkPacket* pkt);
190 void handleCommand_Inventory(NetworkPacket* pkt);
191 void handleCommand_TimeOfDay(NetworkPacket* pkt);
192 void handleCommand_ChatMessage(NetworkPacket *pkt);
193 void handleCommand_ActiveObjectRemoveAdd(NetworkPacket* pkt);
194 void handleCommand_ActiveObjectMessages(NetworkPacket* pkt);
195 void handleCommand_Movement(NetworkPacket* pkt);
196 void handleCommand_Fov(NetworkPacket *pkt);
197 void handleCommand_HP(NetworkPacket* pkt);
198 void handleCommand_Breath(NetworkPacket* pkt);
199 void handleCommand_MovePlayer(NetworkPacket* pkt);
200 void handleCommand_DeathScreen(NetworkPacket* pkt);
201 void handleCommand_AnnounceMedia(NetworkPacket* pkt);
202 void handleCommand_Media(NetworkPacket* pkt);
203 void handleCommand_NodeDef(NetworkPacket* pkt);
204 void handleCommand_ItemDef(NetworkPacket* pkt);
205 void handleCommand_PlaySound(NetworkPacket* pkt);
206 void handleCommand_StopSound(NetworkPacket* pkt);
207 void handleCommand_FadeSound(NetworkPacket *pkt);
208 void handleCommand_Privileges(NetworkPacket* pkt);
209 void handleCommand_InventoryFormSpec(NetworkPacket* pkt);
210 void handleCommand_DetachedInventory(NetworkPacket* pkt);
211 void handleCommand_ShowFormSpec(NetworkPacket* pkt);
212 void handleCommand_SpawnParticle(NetworkPacket* pkt);
213 void handleCommand_AddParticleSpawner(NetworkPacket* pkt);
214 void handleCommand_DeleteParticleSpawner(NetworkPacket* pkt);
215 void handleCommand_HudAdd(NetworkPacket* pkt);
216 void handleCommand_HudRemove(NetworkPacket* pkt);
217 void handleCommand_HudChange(NetworkPacket* pkt);
218 void handleCommand_HudSetFlags(NetworkPacket* pkt);
219 void handleCommand_HudSetParam(NetworkPacket* pkt);
220 void handleCommand_HudSetSky(NetworkPacket* pkt);
221 void handleCommand_CloudParams(NetworkPacket* pkt);
222 void handleCommand_OverrideDayNightRatio(NetworkPacket* pkt);
223 void handleCommand_LocalPlayerAnimations(NetworkPacket* pkt);
224 void handleCommand_EyeOffset(NetworkPacket* pkt);
225 void handleCommand_UpdatePlayerList(NetworkPacket* pkt);
226 void handleCommand_ModChannelMsg(NetworkPacket *pkt);
227 void handleCommand_ModChannelSignal(NetworkPacket *pkt);
228 void handleCommand_SrpBytesSandB(NetworkPacket *pkt);
229 void handleCommand_FormspecPrepend(NetworkPacket *pkt);
230 void handleCommand_CSMRestrictionFlags(NetworkPacket *pkt);
231 void handleCommand_PlayerSpeed(NetworkPacket *pkt);
233 void ProcessData(NetworkPacket *pkt);
235 void Send(NetworkPacket* pkt);
237 void interact(InteractAction action, const PointedThing &pointed);
239 void sendNodemetaFields(v3s16 p, const std::string &formname,
240 const StringMap &fields);
241 void sendInventoryFields(const std::string &formname,
242 const StringMap &fields);
243 void sendInventoryAction(InventoryAction *a);
244 void sendChatMessage(const std::wstring &message);
245 void clearOutChatQueue();
246 void sendChangePassword(const std::string &oldpassword,
247 const std::string &newpassword);
248 void sendDamage(u16 damage);
252 ClientEnvironment& getEnv() { return m_env; }
253 ITextureSource *tsrc() { return getTextureSource(); }
254 ISoundManager *sound() { return getSoundManager(); }
255 static const std::string &getBuiltinLuaPath();
256 static const std::string &getClientModsLuaPath();
258 const std::vector<ModSpec> &getMods() const override;
259 const ModSpec* getModSpec(const std::string &modname) const override;
261 // Causes urgent mesh updates (unlike Map::add/removeNodeWithEvent)
262 void removeNode(v3s16 p);
265 * Helper function for Client Side Modding
266 * CSM restrictions are applied there, this should not be used for core engine
268 * @param is_valid_position
271 MapNode getNode(v3s16 p, bool *is_valid_position);
272 void addNode(v3s16 p, MapNode n, bool remove_metadata = true);
274 void setPlayerControl(PlayerControl &control);
276 // Returns true if the inventory of the local player has been
277 // updated from the server. If it is true, it is set to false.
278 bool updateWieldedItem();
280 /* InventoryManager interface */
281 Inventory* getInventory(const InventoryLocation &loc) override;
282 void inventoryAction(InventoryAction *a) override;
284 // Send the item number 'item' as player item to the server
285 void setPlayerItem(u16 item);
287 const std::list<std::string> &getConnectedPlayerNames()
289 return m_env.getPlayerNames();
292 float getAnimationTime();
296 void setCrack(int level, v3s16 pos);
300 bool checkPrivilege(const std::string &priv) const
301 { return (m_privileges.count(priv) != 0); }
303 const std::unordered_set<std::string> &getPrivilegeList() const
304 { return m_privileges; }
306 bool getChatMessage(std::wstring &message);
307 void typeChatMessage(const std::wstring& message);
309 u64 getMapSeed(){ return m_map_seed; }
311 void addUpdateMeshTask(v3s16 blockpos, bool ack_to_server=false, bool urgent=false);
312 // Including blocks at appropriate edges
313 void addUpdateMeshTaskWithEdge(v3s16 blockpos, bool ack_to_server=false, bool urgent=false);
314 void addUpdateMeshTaskForNode(v3s16 nodepos, bool ack_to_server=false, bool urgent=false);
316 void updateCameraOffset(v3s16 camera_offset)
317 { m_mesh_update_thread.m_camera_offset = camera_offset; }
319 bool hasClientEvents() const { return !m_client_event_queue.empty(); }
320 // Get event from queue. If queue is empty, it triggers an assertion failure.
321 ClientEvent * getClientEvent();
323 bool accessDenied() const { return m_access_denied; }
325 bool reconnectRequested() const { return m_access_denied_reconnect; }
327 void setFatalError(const std::string &reason)
329 m_access_denied = true;
330 m_access_denied_reason = reason;
333 // Renaming accessDeniedReason to better name could be good as it's used to
334 // disconnect client when CSM failed.
335 const std::string &accessDeniedReason() const { return m_access_denied_reason; }
337 const bool itemdefReceived() const
338 { return m_itemdef_received; }
339 const bool nodedefReceived() const
340 { return m_nodedef_received; }
341 const bool mediaReceived() const
342 { return !m_media_downloader; }
343 const bool activeObjectsReceived() const
344 { return m_activeobjects_received; }
346 u16 getProtoVersion()
347 { return m_proto_ver; }
349 bool connectedToServer();
350 void confirmRegistration();
351 bool m_is_registration_confirmation_state = false;
352 bool m_simple_singleplayer_mode;
354 float mediaReceiveProgress();
356 void afterContentReceived();
361 Minimap* getMinimap() { return m_minimap; }
362 void setCamera(Camera* camera) { m_camera = camera; }
364 Camera* getCamera () { return m_camera; }
366 bool shouldShowMinimap() const;
368 // IGameDef interface
369 IItemDefManager* getItemDefManager() override;
370 const NodeDefManager* getNodeDefManager() override;
371 ICraftDefManager* getCraftDefManager() override;
372 ITextureSource* getTextureSource();
373 virtual IShaderSource* getShaderSource();
374 u16 allocateUnknownNodeId(const std::string &name) override;
375 virtual ISoundManager* getSoundManager();
376 MtEventManager* getEventManager();
377 virtual ParticleManager* getParticleManager();
378 bool checkLocalPrivilege(const std::string &priv)
379 { return checkPrivilege(priv); }
380 virtual scene::IAnimatedMesh* getMesh(const std::string &filename, bool cache = false);
381 const std::string* getModFile(const std::string &filename);
383 std::string getModStoragePath() const override;
384 bool registerModStorage(ModMetadata *meta) override;
385 void unregisterModStorage(const std::string &name) override;
387 // The following set of functions is used by ClientMediaDownloader
388 // Insert a media file appropriately into the appropriate manager
389 bool loadMedia(const std::string &data, const std::string &filename);
390 // Send a request for conventional media transfer
391 void request_media(const std::vector<std::string> &file_requests);
393 LocalClientState getState() { return m_state; }
395 void makeScreenshot();
397 inline void pushToChatQueue(ChatMessage *cec)
399 m_chat_queue.push(cec);
402 ClientScripting *getScript() { return m_script; }
403 const bool modsLoaded() const { return m_mods_loaded; }
405 void pushToEventQueue(ClientEvent *event);
407 void showMinimap(bool show = true);
409 const Address getServerAddress();
411 const std::string &getAddressName() const
413 return m_address_name;
416 inline bool checkCSMRestrictionFlag(CSMRestrictionFlags flag) const
418 return m_csm_restriction_flags & flag;
421 u32 getCSMNodeRangeLimit() const
423 return m_csm_restriction_noderange;
426 inline std::unordered_map<u32, u32> &getHUDTranslationMap()
428 return m_hud_server_to_client;
431 bool joinModChannel(const std::string &channel) override;
432 bool leaveModChannel(const std::string &channel) override;
433 bool sendModChannelMessage(const std::string &channel,
434 const std::string &message) override;
435 ModChannel *getModChannel(const std::string &channel) override;
437 const std::string &getFormspecPrepend() const
439 return m_env.getLocalPlayer()->formspec_prepend;
443 bool checkBuiltinIntegrity();
445 // Virtual methods from con::PeerHandler
446 void peerAdded(con::Peer *peer) override;
447 void deletingPeer(con::Peer *peer, bool timeout) override;
449 void initLocalMapSaving(const Address &address,
450 const std::string &hostname,
451 bool is_local_server);
456 void sendPlayerPos();
458 void deleteAuthData();
459 // helper method shared with clientpackethandler
460 static AuthMechanism choseAuthMech(const u32 mechs);
462 void sendInit(const std::string &playerName);
463 void promptConfirmRegistration(AuthMechanism chosen_auth_mechanism);
464 void startAuth(AuthMechanism chosen_auth_mechanism);
465 void sendDeletedBlocks(std::vector<v3s16> &blocks);
466 void sendGotBlocks(const std::vector<v3s16> &blocks);
467 void sendRemovedSounds(std::vector<s32> &soundList);
470 inline std::string getPlayerName()
471 { return m_env.getLocalPlayer()->getName(); }
473 bool canSendChatMessage() const;
475 float m_packetcounter_timer = 0.0f;
476 float m_connection_reinit_timer = 0.1f;
477 float m_avg_rtt_timer = 0.0f;
478 float m_playerpos_send_timer = 0.0f;
479 IntervalLimiter m_map_timer_and_unload_interval;
481 IWritableTextureSource *m_tsrc;
482 IWritableShaderSource *m_shsrc;
483 IWritableItemDefManager *m_itemdef;
484 NodeDefManager *m_nodedef;
485 ISoundManager *m_sound;
486 MtEventManager *m_event;
489 MeshUpdateThread m_mesh_update_thread;
490 ClientEnvironment m_env;
491 ParticleManager m_particle_manager;
492 std::unique_ptr<con::Connection> m_con;
493 std::string m_address_name;
494 Camera *m_camera = nullptr;
495 Minimap *m_minimap = nullptr;
496 bool m_minimap_disabled_by_server = false;
497 // Server serialization version
500 // Used version of the protocol with server
501 // Values smaller than 25 only mean they are smaller than 25,
502 // and aren't accurate. We simply just don't know, because
503 // the server didn't send the version back then.
504 // If 0, server init hasn't been received yet.
507 bool m_update_wielded_item = false;
508 Inventory *m_inventory_from_server = nullptr;
509 float m_inventory_from_server_age = 0.0f;
510 PacketCounter m_packetcounter;
511 // Block mesh animation parameters
512 float m_animation_time = 0.0f;
513 int m_crack_level = -1;
515 // 0 <= m_daynight_i < DAYNIGHT_CACHE_COUNT
517 //u32 m_daynight_ratio;
518 std::queue<std::wstring> m_out_chat_queue;
519 u32 m_last_chat_message_sent;
520 float m_chat_message_allowance = 5.0f;
521 std::queue<ChatMessage *> m_chat_queue;
523 // The authentication methods we can use to enter sudo mode (=change password)
524 u32 m_sudo_auth_methods;
526 // The seed returned by the server in TOCLIENT_INIT is stored here
530 std::string m_playername;
531 std::string m_password;
532 // If set, this will be sent (and cleared) upon a TOCLIENT_ACCEPT_SUDO_MODE
533 std::string m_new_password;
534 // Usable by auth mechanisms.
535 AuthMechanism m_chosen_auth_mech;
536 void *m_auth_data = nullptr;
539 bool m_access_denied = false;
540 bool m_access_denied_reconnect = false;
541 std::string m_access_denied_reason = "";
542 std::queue<ClientEvent *> m_client_event_queue;
543 bool m_itemdef_received = false;
544 bool m_nodedef_received = false;
545 bool m_activeobjects_received = false;
546 bool m_mods_loaded = false;
547 ClientMediaDownloader *m_media_downloader;
549 // time_of_day speed approximation for old protocol
550 bool m_time_of_day_set = false;
551 float m_last_time_of_day_f = -1.0f;
552 float m_time_of_day_update_timer = 0.0f;
554 // An interval for generally sending object positions and stuff
555 float m_recommended_send_interval = 0.1f;
558 float m_removed_sounds_check_timer = 0.0f;
559 // Mapping from server sound ids to our sound ids
560 std::unordered_map<s32, int> m_sounds_server_to_client;
561 // And the other way!
562 std::unordered_map<int, s32> m_sounds_client_to_server;
563 // And relations to objects
564 std::unordered_map<int, u16> m_sounds_to_objects;
566 // Map server hud ids to client hud ids
567 std::unordered_map<u32, u32> m_hud_server_to_client;
570 std::unordered_set<std::string> m_privileges;
572 // Detached inventories
574 std::unordered_map<std::string, Inventory*> m_detached_inventories;
576 // Storage for mesh data for creating multiple instances of the same mesh
577 StringMap m_mesh_data;
580 LocalClientState m_state;
584 // Used for saving server map to disk client-side
585 MapDatabase *m_localdb = nullptr;
586 IntervalLimiter m_localdb_save_interval;
587 u16 m_cache_save_interval;
590 ClientScripting *m_script = nullptr;
591 bool m_modding_enabled;
592 std::unordered_map<std::string, ModMetadata *> m_mod_storages;
593 float m_mod_storage_save_timer = 10.0f;
594 std::vector<ModSpec> m_mods;
597 bool m_shutdown = false;
599 // CSM restrictions byteflag
600 u64 m_csm_restriction_flags = CSMRestrictionFlags::CSM_RF_NONE;
601 u32 m_csm_restriction_noderange = 8;
603 std::unique_ptr<ModChannelMgr> m_modchannel_mgr;