src/client.h

   1 /*
   2 Minetest
   3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   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.
   9
  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.
  14
  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.
  18 */
  19
  20 #ifndef CLIENT_HEADER
  21 #define CLIENT_HEADER
  22
  23 #include "network/connection.h"
  24 #include "clientenvironment.h"
  25 #include "irrlichttypes_extrabloated.h"
  26 #include <ostream>
  27 #include <map>
  28 #include <set>
  29 #include <vector>
  30 #include <unordered_set>
  31 #include "clientobject.h"
  32 #include "gamedef.h"
  33 #include "inventorymanager.h"
  34 #include "localplayer.h"
  35 #include "hud.h"
  36 #include "particles.h"
  37 #include "mapnode.h"
  38 #include "tileanimation.h"
  39 #include "mesh_generator_thread.h"
  40
  41 #define CLIENT_CHAT_MESSAGE_LIMIT_PER_10S 10.0f
  42
  43 struct MeshMakeData;
  44 class MapBlockMesh;
  45 class IWritableTextureSource;
  46 class IWritableShaderSource;
  47 class IWritableItemDefManager;
  48 class IWritableNodeDefManager;
  49 //class IWritableCraftDefManager;
  50 class ClientMediaDownloader;
  51 struct MapDrawControl;
  52 class MtEventManager;
  53 struct PointedThing;
  54 class MapDatabase;
  55 class Minimap;
  56 struct MinimapMapblock;
  57 class Camera;
  58 class NetworkPacket;
  59
  60 enum LocalClientState {
  61         LC_Created,
  62         LC_Init,
  63         LC_Ready
  64 };
  65
  66 enum ClientEventType
  67 {
  68         CE_NONE,
  69         CE_PLAYER_DAMAGE,
  70         CE_PLAYER_FORCE_MOVE,
  71         CE_DEATHSCREEN,
  72         CE_SHOW_FORMSPEC,
  73         CE_SHOW_LOCAL_FORMSPEC,
  74         CE_SPAWN_PARTICLE,
  75         CE_ADD_PARTICLESPAWNER,
  76         CE_DELETE_PARTICLESPAWNER,
  77         CE_HUDADD,
  78         CE_HUDRM,
  79         CE_HUDCHANGE,
  80         CE_SET_SKY,
  81         CE_OVERRIDE_DAY_NIGHT_RATIO,
  82         CE_CLOUD_PARAMS,
  83 };
  84
  85 struct ClientEvent
  86 {
  87         ClientEventType type;
  88         union{
  89                 //struct{
  90                 //} none;
  91                 struct{
  92                         u8 amount;
  93                 } player_damage;
  94                 struct{
  95                         f32 pitch;
  96                         f32 yaw;
  97                 } player_force_move;
  98                 struct{
  99                         bool set_camera_point_target;
 100                         f32 camera_point_target_x;
 101                         f32 camera_point_target_y;
 102                         f32 camera_point_target_z;
 103                 } deathscreen;
 104                 struct{
 105                         std::string *formspec;
 106                         std::string *formname;
 107                 } show_formspec;
 108                 //struct{
 109                 //} textures_updated;
 110                 struct{
 111                         v3f *pos;
 112                         v3f *vel;
 113                         v3f *acc;
 114                         f32 expirationtime;
 115                         f32 size;
 116                         bool collisiondetection;
 117                         bool collision_removal;
 118                         bool vertical;
 119                         std::string *texture;
 120                         struct TileAnimationParams animation;
 121                         u8 glow;
 122                 } spawn_particle;
 123                 struct{
 124                         u16 amount;
 125                         f32 spawntime;
 126                         v3f *minpos;
 127                         v3f *maxpos;
 128                         v3f *minvel;
 129                         v3f *maxvel;
 130                         v3f *minacc;
 131                         v3f *maxacc;
 132                         f32 minexptime;
 133                         f32 maxexptime;
 134                         f32 minsize;
 135                         f32 maxsize;
 136                         bool collisiondetection;
 137                         bool collision_removal;
 138                         u16 attached_id;
 139                         bool vertical;
 140                         std::string *texture;
 141                         u32 id;
 142                         struct TileAnimationParams animation;
 143                         u8 glow;
 144                 } add_particlespawner;
 145                 struct{
 146                         u32 id;
 147                 } delete_particlespawner;
 148                 struct{
 149                         u32 id;
 150                         u8 type;
 151                         v2f *pos;
 152                         std::string *name;
 153                         v2f *scale;
 154                         std::string *text;
 155                         u32 number;
 156                         u32 item;
 157                         u32 dir;
 158                         v2f *align;
 159                         v2f *offset;
 160                         v3f *world_pos;
 161                         v2s32 * size;
 162                 } hudadd;
 163                 struct{
 164                         u32 id;
 165                 } hudrm;
 166                 struct{
 167                         u32 id;
 168                         HudElementStat stat;
 169                         v2f *v2fdata;
 170                         std::string *sdata;
 171                         u32 data;
 172                         v3f *v3fdata;
 173                         v2s32 * v2s32data;
 174                 } hudchange;
 175                 struct{
 176                         video::SColor *bgcolor;
 177                         std::string *type;
 178                         std::vector<std::string> *params;
 179                         bool clouds;
 180                 } set_sky;
 181                 struct{
 182                         bool do_override;
 183                         float ratio_f;
 184                 } override_day_night_ratio;
 185                 struct {
 186                         f32 density;
 187                         u32 color_bright;
 188                         u32 color_ambient;
 189                         f32 height;
 190                         f32 thickness;
 191                         f32 speed_x;
 192                         f32 speed_y;
 193                 } cloud_params;
 194         };
 195 };
 196
 197 /*
 198         Packet counter
 199 */
 200
 201 class PacketCounter
 202 {
 203 public:
 204         PacketCounter()
 205         {
 206         }
 207
 208         void add(u16 command)
 209         {
 210                 std::map<u16, u16>::iterator n = m_packets.find(command);
 211                 if(n == m_packets.end())
 212                 {
 213                         m_packets[command] = 1;
 214                 }
 215                 else
 216                 {
 217                         n->second++;
 218                 }
 219         }
 220
 221         void clear()
 222         {
 223                 for(std::map<u16, u16>::iterator
 224                                 i = m_packets.begin();
 225                                 i != m_packets.end(); ++i)
 226                 {
 227                         i->second = 0;
 228                 }
 229         }
 230
 231         void print(std::ostream &o)
 232         {
 233                 for(std::map<u16, u16>::iterator
 234                                 i = m_packets.begin();
 235                                 i != m_packets.end(); ++i)
 236                 {
 237                         o<<"cmd "<<i->first
 238                                         <<" count "<<i->second
 239                                         <<std::endl;
 240                 }
 241         }
 242
 243 private:
 244         // command, count
 245         std::map<u16, u16> m_packets;
 246 };
 247
 248 class ClientScripting;
 249 struct GameUIFlags;
 250
 251 class Client : public con::PeerHandler, public InventoryManager, public IGameDef
 252 {
 253 public:
 254         /*
 255                 NOTE: Nothing is thread-safe here.
 256         */
 257
 258         Client(
 259                         const char *playername,
 260                         const std::string &password,
 261                         const std::string &address_name,
 262                         MapDrawControl &control,
 263                         IWritableTextureSource *tsrc,
 264                         IWritableShaderSource *shsrc,
 265                         IWritableItemDefManager *itemdef,
 266                         IWritableNodeDefManager *nodedef,
 267                         ISoundManager *sound,
 268                         MtEventManager *event,
 269                         bool ipv6,
 270                         GameUIFlags *game_ui_flags
 271         );
 272
 273         ~Client();
 274         DISABLE_CLASS_COPY(Client);
 275
 276         void initMods();
 277
 278         /*
 279          request all threads managed by client to be stopped
 280          */
 281         void Stop();
 282
 283
 284         bool isShutdown();
 285
 286         /*
 287                 The name of the local player should already be set when
 288                 calling this, as it is sent in the initialization.
 289         */
 290         void connect(Address address, bool is_local_server);
 291
 292         /*
 293                 Stuff that references the environment is valid only as
 294                 long as this is not called. (eg. Players)
 295                 If this throws a PeerNotFoundException, the connection has
 296                 timed out.
 297         */
 298         void step(float dtime);
 299
 300         /*
 301          * Command Handlers
 302          */
 303
 304         void handleCommand(NetworkPacket* pkt);
 305
 306         void handleCommand_Null(NetworkPacket* pkt) {};
 307         void handleCommand_Deprecated(NetworkPacket* pkt);
 308         void handleCommand_Hello(NetworkPacket* pkt);
 309         void handleCommand_AuthAccept(NetworkPacket* pkt);
 310         void handleCommand_AcceptSudoMode(NetworkPacket* pkt);
 311         void handleCommand_DenySudoMode(NetworkPacket* pkt);
 312         void handleCommand_InitLegacy(NetworkPacket* pkt);
 313         void handleCommand_AccessDenied(NetworkPacket* pkt);
 314         void handleCommand_RemoveNode(NetworkPacket* pkt);
 315         void handleCommand_AddNode(NetworkPacket* pkt);
 316         void handleCommand_BlockData(NetworkPacket* pkt);
 317         void handleCommand_Inventory(NetworkPacket* pkt);
 318         void handleCommand_TimeOfDay(NetworkPacket* pkt);
 319         void handleCommand_ChatMessage(NetworkPacket* pkt);
 320         void handleCommand_ActiveObjectRemoveAdd(NetworkPacket* pkt);
 321         void handleCommand_ActiveObjectMessages(NetworkPacket* pkt);
 322         void handleCommand_Movement(NetworkPacket* pkt);
 323         void handleCommand_HP(NetworkPacket* pkt);
 324         void handleCommand_Breath(NetworkPacket* pkt);
 325         void handleCommand_MovePlayer(NetworkPacket* pkt);
 326         void handleCommand_DeathScreen(NetworkPacket* pkt);
 327         void handleCommand_AnnounceMedia(NetworkPacket* pkt);
 328         void handleCommand_Media(NetworkPacket* pkt);
 329         void handleCommand_NodeDef(NetworkPacket* pkt);
 330         void handleCommand_ItemDef(NetworkPacket* pkt);
 331         void handleCommand_PlaySound(NetworkPacket* pkt);
 332         void handleCommand_StopSound(NetworkPacket* pkt);
 333         void handleCommand_FadeSound(NetworkPacket *pkt);
 334         void handleCommand_Privileges(NetworkPacket* pkt);
 335         void handleCommand_InventoryFormSpec(NetworkPacket* pkt);
 336         void handleCommand_DetachedInventory(NetworkPacket* pkt);
 337         void handleCommand_ShowFormSpec(NetworkPacket* pkt);
 338         void handleCommand_SpawnParticle(NetworkPacket* pkt);
 339         void handleCommand_AddParticleSpawner(NetworkPacket* pkt);
 340         void handleCommand_DeleteParticleSpawner(NetworkPacket* pkt);
 341         void handleCommand_HudAdd(NetworkPacket* pkt);
 342         void handleCommand_HudRemove(NetworkPacket* pkt);
 343         void handleCommand_HudChange(NetworkPacket* pkt);
 344         void handleCommand_HudSetFlags(NetworkPacket* pkt);
 345         void handleCommand_HudSetParam(NetworkPacket* pkt);
 346         void handleCommand_HudSetSky(NetworkPacket* pkt);
 347         void handleCommand_CloudParams(NetworkPacket* pkt);
 348         void handleCommand_OverrideDayNightRatio(NetworkPacket* pkt);
 349         void handleCommand_LocalPlayerAnimations(NetworkPacket* pkt);
 350         void handleCommand_EyeOffset(NetworkPacket* pkt);
 351         void handleCommand_UpdatePlayerList(NetworkPacket* pkt);
 352         void handleCommand_SrpBytesSandB(NetworkPacket* pkt);
 353
 354         void ProcessData(NetworkPacket *pkt);
 355
 356         void Send(NetworkPacket* pkt);
 357
 358         void interact(u8 action, const PointedThing& pointed);
 359
 360         void sendNodemetaFields(v3s16 p, const std::string &formname,
 361                 const StringMap &fields);
 362         void sendInventoryFields(const std::string &formname,
 363                 const StringMap &fields);
 364         void sendInventoryAction(InventoryAction *a);
 365         void sendChatMessage(const std::wstring &message);
 366         void clearOutChatQueue();
 367         void sendChangePassword(const std::string &oldpassword,
 368                 const std::string &newpassword);
 369         void sendDamage(u8 damage);
 370         void sendBreath(u16 breath);
 371         void sendRespawn();
 372         void sendReady();
 373
 374         ClientEnvironment& getEnv() { return m_env; }
 375         ITextureSource *tsrc() { return getTextureSource(); }
 376         ISoundManager *sound() { return getSoundManager(); }
 377         static const std::string &getBuiltinLuaPath();
 378         static const std::string &getClientModsLuaPath();
 379
 380         virtual const std::vector<ModSpec> &getMods() const;
 381         virtual const ModSpec* getModSpec(const std::string &modname) const;
 382
 383         // Causes urgent mesh updates (unlike Map::add/removeNodeWithEvent)
 384         void removeNode(v3s16 p);
 385         MapNode getNode(v3s16 p, bool *is_valid_position);
 386         void addNode(v3s16 p, MapNode n, bool remove_metadata = true);
 387
 388         void setPlayerControl(PlayerControl &control);
 389
 390         void selectPlayerItem(u16 item);
 391         u16 getPlayerItem() const
 392         { return m_playeritem; }
 393
 394         // Returns true if the inventory of the local player has been
 395         // updated from the server. If it is true, it is set to false.
 396         bool getLocalInventoryUpdated();
 397         // Copies the inventory of the local player to parameter
 398         void getLocalInventory(Inventory &dst);
 399
 400         /* InventoryManager interface */
 401         Inventory* getInventory(const InventoryLocation &loc);
 402         void inventoryAction(InventoryAction *a);
 403
 404         const std::list<std::string> &getConnectedPlayerNames()
 405         {
 406                 return m_env.getPlayerNames();
 407         }
 408
 409         float getAnimationTime();
 410
 411         int getCrackLevel();
 412         v3s16 getCrackPos();
 413         void setCrack(int level, v3s16 pos);
 414
 415         u16 getHP();
 416
 417         bool checkPrivilege(const std::string &priv) const
 418         { return (m_privileges.count(priv) != 0); }
 419
 420         const std::unordered_set<std::string> &getPrivilegeList() const
 421         { return m_privileges; }
 422
 423         bool getChatMessage(std::wstring &message);
 424         void typeChatMessage(const std::wstring& message);
 425
 426         u64 getMapSeed(){ return m_map_seed; }
 427
 428         void addUpdateMeshTask(v3s16 blockpos, bool ack_to_server=false, bool urgent=false);
 429         // Including blocks at appropriate edges
 430         void addUpdateMeshTaskWithEdge(v3s16 blockpos, bool ack_to_server=false, bool urgent=false);
 431         void addUpdateMeshTaskForNode(v3s16 nodepos, bool ack_to_server=false, bool urgent=false);
 432
 433         void updateCameraOffset(v3s16 camera_offset)
 434         { m_mesh_update_thread.m_camera_offset = camera_offset; }
 435
 436         bool hasClientEvents() const { return !m_client_event_queue.empty(); }
 437         // Get event from queue. If queue is empty, it triggers an assertion failure.
 438         ClientEvent getClientEvent();
 439
 440         bool accessDenied() const { return m_access_denied; }
 441
 442         bool reconnectRequested() const { return m_access_denied_reconnect; }
 443
 444         void setFatalError(const std::string &reason)
 445         {
 446                 m_access_denied = true;
 447                 m_access_denied_reason = reason;
 448         }
 449
 450         // Renaming accessDeniedReason to better name could be good as it's used to
 451         // disconnect client when CSM failed.
 452         const std::string &accessDeniedReason() const { return m_access_denied_reason; }
 453
 454         bool itemdefReceived()
 455         { return m_itemdef_received; }
 456         bool nodedefReceived()
 457         { return m_nodedef_received; }
 458         bool mediaReceived()
 459         { return !m_media_downloader; }
 460
 461         u8 getProtoVersion()
 462         { return m_proto_ver; }
 463
 464         bool connectedToServer()
 465         { return m_con.Connected(); }
 466
 467         float mediaReceiveProgress();
 468
 469         void afterContentReceived();
 470
 471         float getRTT();
 472         float getCurRate();
 473
 474         Minimap* getMinimap() { return m_minimap; }
 475         void setCamera(Camera* camera) { m_camera = camera; }
 476
 477         Camera* getCamera () { return m_camera; }
 478
 479         bool shouldShowMinimap() const;
 480
 481         // IGameDef interface
 482         virtual IItemDefManager* getItemDefManager();
 483         virtual INodeDefManager* getNodeDefManager();
 484         virtual ICraftDefManager* getCraftDefManager();
 485         ITextureSource* getTextureSource();
 486         virtual IShaderSource* getShaderSource();
 487         IShaderSource *shsrc() { return getShaderSource(); }
 488         virtual u16 allocateUnknownNodeId(const std::string &name);
 489         virtual ISoundManager* getSoundManager();
 490         virtual MtEventManager* getEventManager();
 491         virtual ParticleManager* getParticleManager();
 492         bool checkLocalPrivilege(const std::string &priv)
 493         { return checkPrivilege(priv); }
 494         virtual scene::IAnimatedMesh* getMesh(const std::string &filename);
 495
 496         virtual std::string getModStoragePath() const;
 497         virtual bool registerModStorage(ModMetadata *meta);
 498         virtual void unregisterModStorage(const std::string &name);
 499
 500         // The following set of functions is used by ClientMediaDownloader
 501         // Insert a media file appropriately into the appropriate manager
 502         bool loadMedia(const std::string &data, const std::string &filename);
 503         // Send a request for conventional media transfer
 504         void request_media(const std::vector<std::string> &file_requests);
 505
 506         LocalClientState getState() { return m_state; }
 507
 508         void makeScreenshot();
 509
 510         inline void pushToChatQueue(const std::wstring &input)
 511         {
 512                 m_chat_queue.push(input);
 513         }
 514
 515         ClientScripting *getScript() { return m_script; }
 516         const bool moddingEnabled() const { return m_modding_enabled; }
 517
 518         inline void pushToEventQueue(const ClientEvent &event)
 519         {
 520                 m_client_event_queue.push(event);
 521         }
 522
 523         void showGameChat(const bool show = true);
 524         void showGameHud(const bool show = true);
 525         void showMinimap(const bool show = true);
 526         void showProfiler(const bool show = true);
 527         void showGameFog(const bool show = true);
 528         void showGameDebug(const bool show = true);
 529
 530         const Address getServerAddress()
 531         {
 532                 return m_con.GetPeerAddress(PEER_ID_SERVER);
 533         }
 534
 535         const std::string &getAddressName() const
 536         {
 537                 return m_address_name;
 538         }
 539
 540 private:
 541
 542         // Virtual methods from con::PeerHandler
 543         void peerAdded(con::Peer *peer);
 544         void deletingPeer(con::Peer *peer, bool timeout);
 545
 546         void initLocalMapSaving(const Address &address,
 547                         const std::string &hostname,
 548                         bool is_local_server);
 549
 550         void ReceiveAll();
 551         void Receive();
 552
 553         void sendPlayerPos();
 554         // Send the item number 'item' as player item to the server
 555         void sendPlayerItem(u16 item);
 556
 557         void deleteAuthData();
 558         // helper method shared with clientpackethandler
 559         static AuthMechanism choseAuthMech(const u32 mechs);
 560
 561         void sendLegacyInit(const char* playerName, const char* playerPassword);
 562         void sendInit(const std::string &playerName);
 563         void startAuth(AuthMechanism chosen_auth_mechanism);
 564         void sendDeletedBlocks(std::vector<v3s16> &blocks);
 565         void sendGotBlocks(v3s16 block);
 566         void sendRemovedSounds(std::vector<s32> &soundList);
 567
 568         // Helper function
 569         inline std::string getPlayerName()
 570         { return m_env.getLocalPlayer()->getName(); }
 571
 572         bool canSendChatMessage() const;
 573
 574         float m_packetcounter_timer = 0.0f;
 575         float m_connection_reinit_timer = 0.1f;
 576         float m_avg_rtt_timer = 0.0f;
 577         float m_playerpos_send_timer = 0.0f;
 578         float m_ignore_damage_timer = 0.0f; // Used after server moves player
 579         IntervalLimiter m_map_timer_and_unload_interval;
 580
 581         IWritableTextureSource *m_tsrc;
 582         IWritableShaderSource *m_shsrc;
 583         IWritableItemDefManager *m_itemdef;
 584         IWritableNodeDefManager *m_nodedef;
 585         ISoundManager *m_sound;
 586         MtEventManager *m_event;
 587
 588
 589         MeshUpdateThread m_mesh_update_thread;
 590         ClientEnvironment m_env;
 591         ParticleManager m_particle_manager;
 592         con::Connection m_con;
 593         std::string m_address_name;
 594         Camera *m_camera = nullptr;
 595         Minimap *m_minimap = nullptr;
 596         bool m_minimap_disabled_by_server = false;
 597         // Server serialization version
 598         u8 m_server_ser_ver;
 599
 600         // Used version of the protocol with server
 601         // Values smaller than 25 only mean they are smaller than 25,
 602         // and aren't accurate. We simply just don't know, because
 603         // the server didn't send the version back then.
 604         // If 0, server init hasn't been received yet.
 605         u8 m_proto_ver = 0;
 606
 607         u16 m_playeritem = 0;
 608         bool m_inventory_updated = false;
 609         Inventory *m_inventory_from_server = nullptr;
 610         float m_inventory_from_server_age = 0.0f;
 611         PacketCounter m_packetcounter;
 612         // Block mesh animation parameters
 613         float m_animation_time = 0.0f;
 614         int m_crack_level = -1;
 615         v3s16 m_crack_pos;
 616         // 0 <= m_daynight_i < DAYNIGHT_CACHE_COUNT
 617         //s32 m_daynight_i;
 618         //u32 m_daynight_ratio;
 619         std::queue<std::wstring> m_chat_queue;
 620         std::queue<std::wstring> m_out_chat_queue;
 621         u32 m_last_chat_message_sent;
 622         float m_chat_message_allowance = 5.0f;
 623
 624         // The authentication methods we can use to enter sudo mode (=change password)
 625         u32 m_sudo_auth_methods;
 626
 627         // The seed returned by the server in TOCLIENT_INIT is stored here
 628         u64 m_map_seed = 0;
 629
 630         // Auth data
 631         std::string m_playername;
 632         std::string m_password;
 633         // If set, this will be sent (and cleared) upon a TOCLIENT_ACCEPT_SUDO_MODE
 634         std::string m_new_password;
 635         // Usable by auth mechanisms.
 636         AuthMechanism m_chosen_auth_mech;
 637         void *m_auth_data = nullptr;
 638
 639
 640         bool m_access_denied = false;
 641         bool m_access_denied_reconnect = false;
 642         std::string m_access_denied_reason = "";
 643         std::queue<ClientEvent> m_client_event_queue;
 644         bool m_itemdef_received = false;
 645         bool m_nodedef_received = false;
 646         ClientMediaDownloader *m_media_downloader;
 647
 648         // time_of_day speed approximation for old protocol
 649         bool m_time_of_day_set = false;
 650         float m_last_time_of_day_f = -1.0f;
 651         float m_time_of_day_update_timer = 0.0f;
 652
 653         // An interval for generally sending object positions and stuff
 654         float m_recommended_send_interval = 0.1f;
 655
 656         // Sounds
 657         float m_removed_sounds_check_timer = 0.0f;
 658         // Mapping from server sound ids to our sound ids
 659         std::unordered_map<s32, int> m_sounds_server_to_client;
 660         // And the other way!
 661         std::unordered_map<int, s32> m_sounds_client_to_server;
 662         // And relations to objects
 663         std::unordered_map<int, u16> m_sounds_to_objects;
 664
 665         // Privileges
 666         std::unordered_set<std::string> m_privileges;
 667
 668         // Detached inventories
 669         // key = name
 670         std::unordered_map<std::string, Inventory*> m_detached_inventories;
 671
 672         // Storage for mesh data for creating multiple instances of the same mesh
 673         StringMap m_mesh_data;
 674
 675         // own state
 676         LocalClientState m_state;
 677
 678         // Used for saving server map to disk client-side
 679         MapDatabase *m_localdb = nullptr;
 680         IntervalLimiter m_localdb_save_interval;
 681         u16 m_cache_save_interval;
 682
 683         ClientScripting *m_script = nullptr;
 684         bool m_modding_enabled;
 685         std::unordered_map<std::string, ModMetadata *> m_mod_storages;
 686         float m_mod_storage_save_timer = 10.0f;
 687         GameUIFlags *m_game_ui_flags;
 688
 689         bool m_shutdown = false;
 690 };
 691
 692 #endif // !CLIENT_HEADER