minetest/src/client/client.h
2021-01-22 15:09:26 +00:00

597 lines
18 KiB
C++

/*
Minetest
Copyright (C) 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.
*/
#pragma once
#include "clientenvironment.h"
#include "irrlichttypes_extrabloated.h"
#include <ostream>
#include <map>
#include <set>
#include <vector>
#include <unordered_set>
#include "clientobject.h"
#include "gamedef.h"
#include "inventorymanager.h"
#include "localplayer.h"
#include "client/hud.h"
#include "particles.h"
#include "mapnode.h"
#include "tileanimation.h"
#include "mesh_generator_thread.h"
#include "network/address.h"
#include "network/peerhandler.h"
#include <fstream>
#define CLIENT_CHAT_MESSAGE_LIMIT_PER_10S 10.0f
struct ClientEvent;
struct MeshMakeData;
struct ChatMessage;
class MapBlockMesh;
class IWritableTextureSource;
class IWritableShaderSource;
class IWritableItemDefManager;
class ISoundManager;
class NodeDefManager;
//class IWritableCraftDefManager;
class ClientMediaDownloader;
struct MapDrawControl;
class ModChannelMgr;
class MtEventManager;
struct PointedThing;
class MapDatabase;
class Minimap;
struct MinimapMapblock;
class Camera;
class NetworkPacket;
namespace con {
class Connection;
}
enum LocalClientState {
LC_Created,
LC_Init,
LC_Ready
};
/*
Packet counter
*/
class PacketCounter
{
public:
PacketCounter() = default;
void add(u16 command)
{
auto n = m_packets.find(command);
if (n == m_packets.end())
m_packets[command] = 1;
else
n->second++;
}
void clear()
{
m_packets.clear();
}
u32 sum() const;
void print(std::ostream &o) const;
private:
// command, count
std::map<u16, u32> m_packets;
};
class ClientScripting;
class GameUI;
class Client : public con::PeerHandler, public InventoryManager, public IGameDef
{
public:
/*
NOTE: Nothing is thread-safe here.
*/
Client(
const char *playername,
const std::string &password,
const std::string &address_name,
MapDrawControl &control,
IWritableTextureSource *tsrc,
IWritableShaderSource *shsrc,
IWritableItemDefManager *itemdef,
NodeDefManager *nodedef,
ISoundManager *sound,
MtEventManager *event,
bool ipv6,
GameUI *game_ui
);
~Client();
DISABLE_CLASS_COPY(Client);
// Load local mods into memory
void scanModSubfolder(const std::string &mod_name, const std::string &mod_path,
std::string mod_subpath);
inline void scanModIntoMemory(const std::string &mod_name, const std::string &mod_path)
{
scanModSubfolder(mod_name, mod_path, "");
}
/*
request all threads managed by client to be stopped
*/
void Stop();
bool isShutdown();
/*
The name of the local player should already be set when
calling this, as it is sent in the initialization.
*/
void connect(Address address, bool is_local_server);
/*
Stuff that references the environment is valid only as
long as this is not called. (eg. Players)
If this throws a PeerNotFoundException, the connection has
timed out.
*/
void step(float dtime);
/*
* Command Handlers
*/
void handleCommand(NetworkPacket* pkt);
void handleCommand_Null(NetworkPacket* pkt) {};
void handleCommand_Deprecated(NetworkPacket* pkt);
void handleCommand_Hello(NetworkPacket* pkt);
void handleCommand_AuthAccept(NetworkPacket* pkt);
void handleCommand_AcceptSudoMode(NetworkPacket* pkt);
void handleCommand_DenySudoMode(NetworkPacket* pkt);
void handleCommand_AccessDenied(NetworkPacket* pkt);
void handleCommand_RemoveNode(NetworkPacket* pkt);
void handleCommand_AddNode(NetworkPacket* pkt);
void handleCommand_NodemetaChanged(NetworkPacket *pkt);
void handleCommand_BlockData(NetworkPacket* pkt);
void handleCommand_Inventory(NetworkPacket* pkt);
void handleCommand_TimeOfDay(NetworkPacket* pkt);
void handleCommand_ChatMessage(NetworkPacket *pkt);
void handleCommand_ActiveObjectRemoveAdd(NetworkPacket* pkt);
void handleCommand_ActiveObjectMessages(NetworkPacket* pkt);
void handleCommand_Movement(NetworkPacket* pkt);
void handleCommand_Fov(NetworkPacket *pkt);
void handleCommand_HP(NetworkPacket* pkt);
void handleCommand_Breath(NetworkPacket* pkt);
void handleCommand_MovePlayer(NetworkPacket* pkt);
void handleCommand_DeathScreen(NetworkPacket* pkt);
void handleCommand_AnnounceMedia(NetworkPacket* pkt);
void handleCommand_Media(NetworkPacket* pkt);
void handleCommand_NodeDef(NetworkPacket* pkt);
void handleCommand_ItemDef(NetworkPacket* pkt);
void handleCommand_PlaySound(NetworkPacket* pkt);
void handleCommand_StopSound(NetworkPacket* pkt);
void handleCommand_FadeSound(NetworkPacket *pkt);
void handleCommand_Privileges(NetworkPacket* pkt);
void handleCommand_InventoryFormSpec(NetworkPacket* pkt);
void handleCommand_DetachedInventory(NetworkPacket* pkt);
void handleCommand_ShowFormSpec(NetworkPacket* pkt);
void handleCommand_SpawnParticle(NetworkPacket* pkt);
void handleCommand_AddParticleSpawner(NetworkPacket* pkt);
void handleCommand_DeleteParticleSpawner(NetworkPacket* pkt);
void handleCommand_HudAdd(NetworkPacket* pkt);
void handleCommand_HudRemove(NetworkPacket* pkt);
void handleCommand_HudChange(NetworkPacket* pkt);
void handleCommand_HudSetFlags(NetworkPacket* pkt);
void handleCommand_HudSetParam(NetworkPacket* pkt);
void handleCommand_HudSetSky(NetworkPacket* pkt);
void handleCommand_HudSetSun(NetworkPacket* pkt);
void handleCommand_HudSetMoon(NetworkPacket* pkt);
void handleCommand_HudSetStars(NetworkPacket* pkt);
void handleCommand_CloudParams(NetworkPacket* pkt);
void handleCommand_OverrideDayNightRatio(NetworkPacket* pkt);
void handleCommand_LocalPlayerAnimations(NetworkPacket* pkt);
void handleCommand_EyeOffset(NetworkPacket* pkt);
void handleCommand_UpdatePlayerList(NetworkPacket* pkt);
void handleCommand_ModChannelMsg(NetworkPacket *pkt);
void handleCommand_ModChannelSignal(NetworkPacket *pkt);
void handleCommand_SrpBytesSandB(NetworkPacket *pkt);
void handleCommand_FormspecPrepend(NetworkPacket *pkt);
void handleCommand_CSMRestrictionFlags(NetworkPacket *pkt);
void handleCommand_PlayerSpeed(NetworkPacket *pkt);
void handleCommand_MediaPush(NetworkPacket *pkt);
void handleCommand_MinimapModes(NetworkPacket *pkt);
void ProcessData(NetworkPacket *pkt);
void Send(NetworkPacket* pkt);
void interact(InteractAction action, const PointedThing &pointed);
void sendNodemetaFields(v3s16 p, const std::string &formname,
const StringMap &fields);
void sendInventoryFields(const std::string &formname,
const StringMap &fields);
void sendInventoryAction(InventoryAction *a);
void sendChatMessage(const std::wstring &message);
void clearOutChatQueue();
void sendChangePassword(const std::string &oldpassword,
const std::string &newpassword);
void sendDamage(u16 damage);
void sendRespawn();
void sendReady();
ClientEnvironment& getEnv() { return m_env; }
ITextureSource *tsrc() { return getTextureSource(); }
ISoundManager *sound() { return getSoundManager(); }
static const std::string &getBuiltinLuaPath();
static const std::string &getClientModsLuaPath();
const std::vector<ModSpec> &getMods() const override;
const ModSpec* getModSpec(const std::string &modname) const override;
// Causes urgent mesh updates (unlike Map::add/removeNodeWithEvent)
void removeNode(v3s16 p);
// helpers to enforce CSM restrictions
MapNode CSMGetNode(v3s16 p, bool *is_valid_position);
int CSMClampRadius(v3s16 pos, int radius);
v3s16 CSMClampPos(v3s16 pos);
void addNode(v3s16 p, MapNode n, bool remove_metadata = true);
void setPlayerControl(PlayerControl &control);
// Returns true if the inventory of the local player has been
// updated from the server. If it is true, it is set to false.
bool updateWieldedItem();
/* InventoryManager interface */
Inventory* getInventory(const InventoryLocation &loc) override;
void inventoryAction(InventoryAction *a) override;
// Send the item number 'item' as player item to the server
void setPlayerItem(u16 item);
const std::list<std::string> &getConnectedPlayerNames()
{
return m_env.getPlayerNames();
}
float getAnimationTime();
int getCrackLevel();
v3s16 getCrackPos();
void setCrack(int level, v3s16 pos);
u16 getHP();
bool checkPrivilege(const std::string &priv) const
{ return (m_privileges.count(priv) != 0); }
const std::unordered_set<std::string> &getPrivilegeList() const
{ return m_privileges; }
bool getChatMessage(std::wstring &message);
void typeChatMessage(const std::wstring& message);
u64 getMapSeed(){ return m_map_seed; }
void addUpdateMeshTask(v3s16 blockpos, bool ack_to_server=false, bool urgent=false);
// Including blocks at appropriate edges
void addUpdateMeshTaskWithEdge(v3s16 blockpos, bool ack_to_server=false, bool urgent=false);
void addUpdateMeshTaskForNode(v3s16 nodepos, bool ack_to_server=false, bool urgent=false);
void updateCameraOffset(v3s16 camera_offset)
{ m_mesh_update_thread.m_camera_offset = camera_offset; }
bool hasClientEvents() const { return !m_client_event_queue.empty(); }
// Get event from queue. If queue is empty, it triggers an assertion failure.
ClientEvent * getClientEvent();
bool accessDenied() const { return m_access_denied; }
bool reconnectRequested() const { return m_access_denied_reconnect; }
void setFatalError(const std::string &reason)
{
m_access_denied = true;
m_access_denied_reason = reason;
}
// Renaming accessDeniedReason to better name could be good as it's used to
// disconnect client when CSM failed.
const std::string &accessDeniedReason() const { return m_access_denied_reason; }
const bool itemdefReceived() const
{ return m_itemdef_received; }
const bool nodedefReceived() const
{ return m_nodedef_received; }
const bool mediaReceived() const
{ return !m_media_downloader; }
const bool activeObjectsReceived() const
{ return m_activeobjects_received; }
u16 getProtoVersion()
{ return m_proto_ver; }
void confirmRegistration();
bool m_is_registration_confirmation_state = false;
bool m_simple_singleplayer_mode;
float mediaReceiveProgress();
void afterContentReceived();
float getRTT();
float getCurRate();
Minimap* getMinimap() { return m_minimap; }
void setCamera(Camera* camera) { m_camera = camera; }
Camera* getCamera () { return m_camera; }
bool shouldShowMinimap() const;
// IGameDef interface
IItemDefManager* getItemDefManager() override;
const NodeDefManager* getNodeDefManager() override;
ICraftDefManager* getCraftDefManager() override;
ITextureSource* getTextureSource();
virtual IWritableShaderSource* getShaderSource();
u16 allocateUnknownNodeId(const std::string &name) override;
virtual ISoundManager* getSoundManager();
MtEventManager* getEventManager();
virtual ParticleManager* getParticleManager();
bool checkLocalPrivilege(const std::string &priv)
{ return checkPrivilege(priv); }
virtual scene::IAnimatedMesh* getMesh(const std::string &filename, bool cache = false);
const std::string* getModFile(std::string filename);
std::string getModStoragePath() const override;
bool registerModStorage(ModMetadata *meta) override;
void unregisterModStorage(const std::string &name) override;
// The following set of functions is used by ClientMediaDownloader
// Insert a media file appropriately into the appropriate manager
bool loadMedia(const std::string &data, const std::string &filename,
bool from_media_push = false);
// Send a request for conventional media transfer
void request_media(const std::vector<std::string> &file_requests);
LocalClientState getState() { return m_state; }
void makeScreenshot();
inline void pushToChatQueue(ChatMessage *cec)
{
m_chat_queue.push(cec);
}
ClientScripting *getScript() { return m_script; }
const bool modsLoaded() const { return m_mods_loaded; }
void pushToEventQueue(ClientEvent *event);
void showMinimap(bool show = true);
const Address getServerAddress();
const std::string &getAddressName() const
{
return m_address_name;
}
inline u64 getCSMRestrictionFlags() const
{
return m_csm_restriction_flags;
}
inline bool checkCSMRestrictionFlag(CSMRestrictionFlags flag) const
{
return m_csm_restriction_flags & flag;
}
inline std::unordered_map<u32, u32> &getHUDTranslationMap()
{
return m_hud_server_to_client;
}
bool joinModChannel(const std::string &channel) override;
bool leaveModChannel(const std::string &channel) override;
bool sendModChannelMessage(const std::string &channel,
const std::string &message) override;
ModChannel *getModChannel(const std::string &channel) override;
const std::string &getFormspecPrepend() const
{
return m_env.getLocalPlayer()->formspec_prepend;
}
private:
void loadMods();
// Virtual methods from con::PeerHandler
void peerAdded(con::Peer *peer) override;
void deletingPeer(con::Peer *peer, bool timeout) override;
void initLocalMapSaving(const Address &address,
const std::string &hostname,
bool is_local_server);
void ReceiveAll();
void sendPlayerPos();
void deleteAuthData();
// helper method shared with clientpackethandler
static AuthMechanism choseAuthMech(const u32 mechs);
void sendInit(const std::string &playerName);
void promptConfirmRegistration(AuthMechanism chosen_auth_mechanism);
void startAuth(AuthMechanism chosen_auth_mechanism);
void sendDeletedBlocks(std::vector<v3s16> &blocks);
void sendGotBlocks(const std::vector<v3s16> &blocks);
void sendRemovedSounds(std::vector<s32> &soundList);
// Helper function
inline std::string getPlayerName()
{ return m_env.getLocalPlayer()->getName(); }
bool canSendChatMessage() const;
float m_packetcounter_timer = 0.0f;
float m_connection_reinit_timer = 0.1f;
float m_avg_rtt_timer = 0.0f;
float m_playerpos_send_timer = 0.0f;
IntervalLimiter m_map_timer_and_unload_interval;
IWritableTextureSource *m_tsrc;
IWritableShaderSource *m_shsrc;
IWritableItemDefManager *m_itemdef;
NodeDefManager *m_nodedef;
ISoundManager *m_sound;
MtEventManager *m_event;
MeshUpdateThread m_mesh_update_thread;
ClientEnvironment m_env;
ParticleManager m_particle_manager;
std::unique_ptr<con::Connection> m_con;
std::string m_address_name;
Camera *m_camera = nullptr;
Minimap *m_minimap = nullptr;
bool m_minimap_disabled_by_server = false;
// Server serialization version
u8 m_server_ser_ver;
// Used version of the protocol with server
// Values smaller than 25 only mean they are smaller than 25,
// and aren't accurate. We simply just don't know, because
// the server didn't send the version back then.
// If 0, server init hasn't been received yet.
u16 m_proto_ver = 0;
bool m_update_wielded_item = false;
Inventory *m_inventory_from_server = nullptr;
float m_inventory_from_server_age = 0.0f;
PacketCounter m_packetcounter;
// Block mesh animation parameters
float m_animation_time = 0.0f;
int m_crack_level = -1;
v3s16 m_crack_pos;
// 0 <= m_daynight_i < DAYNIGHT_CACHE_COUNT
//s32 m_daynight_i;
//u32 m_daynight_ratio;
std::queue<std::wstring> m_out_chat_queue;
u32 m_last_chat_message_sent;
float m_chat_message_allowance = 5.0f;
std::queue<ChatMessage *> m_chat_queue;
// The authentication methods we can use to enter sudo mode (=change password)
u32 m_sudo_auth_methods;
// The seed returned by the server in TOCLIENT_INIT is stored here
u64 m_map_seed = 0;
// Auth data
std::string m_playername;
std::string m_password;
// If set, this will be sent (and cleared) upon a TOCLIENT_ACCEPT_SUDO_MODE
std::string m_new_password;
// Usable by auth mechanisms.
AuthMechanism m_chosen_auth_mech;
void *m_auth_data = nullptr;
bool m_access_denied = false;
bool m_access_denied_reconnect = false;
std::string m_access_denied_reason = "";
std::queue<ClientEvent *> m_client_event_queue;
bool m_itemdef_received = false;
bool m_nodedef_received = false;
bool m_activeobjects_received = false;
bool m_mods_loaded = false;
ClientMediaDownloader *m_media_downloader;
// Set of media filenames pushed by server at runtime
std::unordered_set<std::string> m_media_pushed_files;
// time_of_day speed approximation for old protocol
bool m_time_of_day_set = false;
float m_last_time_of_day_f = -1.0f;
float m_time_of_day_update_timer = 0.0f;
// An interval for generally sending object positions and stuff
float m_recommended_send_interval = 0.1f;
// Sounds
float m_removed_sounds_check_timer = 0.0f;
// Mapping from server sound ids to our sound ids
std::unordered_map<s32, int> m_sounds_server_to_client;
// And the other way!
std::unordered_map<int, s32> m_sounds_client_to_server;
// Relation of client id to object id
std::unordered_map<int, u16> m_sounds_to_objects;
// Map server hud ids to client hud ids
std::unordered_map<u32, u32> m_hud_server_to_client;
// Privileges
std::unordered_set<std::string> m_privileges;
// Detached inventories
// key = name
std::unordered_map<std::string, Inventory*> m_detached_inventories;
// Storage for mesh data for creating multiple instances of the same mesh
StringMap m_mesh_data;
// own state
LocalClientState m_state;
GameUI *m_game_ui;
// Used for saving server map to disk client-side
MapDatabase *m_localdb = nullptr;
IntervalLimiter m_localdb_save_interval;
u16 m_cache_save_interval;
// Client modding
ClientScripting *m_script = nullptr;
std::unordered_map<std::string, ModMetadata *> m_mod_storages;
float m_mod_storage_save_timer = 10.0f;
std::vector<ModSpec> m_mods;
StringMap m_mod_vfs;
bool m_shutdown = false;
// CSM restrictions byteflag
u64 m_csm_restriction_flags = CSMRestrictionFlags::CSM_RF_NONE;
u32 m_csm_restriction_noderange = 8;
std::unique_ptr<ModChannelMgr> m_modchannel_mgr;
};