#include <iostream>
#include <fstream>
#include <set>
#include <vector>
#include <functional>
#include <algorithm>
#include <array>
#include <utility>
#include <random>
#include "game.h"
#include "online_service.h"
#include "stratagus.h"
#include "netconnect.h"
#include "interface.h"
#include "map.h"
#include "network.h"
#include "parameters.h"
#include "player.h"
#include "script.h"
#include "settings.h"
#include "version.h"
#include "video.h"
#include "mdns.h"

Classes
struct	NetworkState

class	CServer

class	CClient

netconnect.cpp - The network high level connection code.
#define	CLIENT_LIVE_BEAT 60

#define	CLIENT_IS_DEAD 300

CNetworkHost	Hosts [PlayerMax]
	Network players. More...

int	NetConnectRunning = 0
	Host, ports, and assigned player numbers of all players. More...

int	NetConnectType = 0
	Network menu: Setup mode active. More...

int	NetLocalHostsSlot
	Network menu: Setup mode active. More...

int	NetLocalPlayerNumber
	Network menu: Slot # in Hosts array of local client. More...

int	NetPlayers
	Player number of local client. More...

std::string	NetworkMapName
	How many network players. More...

std::string	NetworkMapFragmentName
	Name of the map received with ICMMap. More...

bool	NoRandomPlacementMultiplayer = false
	Name of the map currently loading via ICMMapNeeded. More...

CServerSetup	ServerSetupState
	Disable the random placement of players in muliplayer mode. More...

CServerSetup	LocalSetupState
	Network menu: Multiplayer Server Menu selections state. More...

MDNS	MdnsService

static CServer	Server

static CClient	Client

static const char *	ncconstatenames []

static const char *	icmsgsubtypenames []

template<typename T >
static void	NetworkSendICMessage (CUDPSocket &socket, const CHost &host, const T &msg)

void	NetworkSendICMessage (CUDPSocket &socket, const CHost &host, const CInitMessage_Header &msg)
	Menu Loop: Client: Send GoodBye to the server and detach. More...

template<typename T >
static void	NetworkSendICMessage_Log (CUDPSocket &socket, const CHost &host, const T &msg)

static void	NetworkSendICMessage_Log (CUDPSocket &socket, const CHost &host, const CInitMessage_Header &msg)

static bool	IsLocalSetupInSync (const CServerSetup &state1, const CServerSetup &state2, int index)

static bool	IsSafeMapName (const char *mapname)

static int	CheckVersions (const CInitMessage_Hello &msg, CUDPSocket &socket, const CHost &host)

int	NetworkParseSetupEvent (const unsigned char *buf, int size, const CHost &host)
	Setup network connect state machine for the server. More...

void	NetworkProcessClientRequest ()
	Menu: Setup the server IP. More...

int	GetNetworkState ()

int	FindHostIndexBy (const CHost &host)
	Disable the random placement of players in muliplayer mode. More...

void	NetworkProcessServerRequest ()
	Menu Loop: Send out client request messages. More...

void	NetworkInitClientConnect ()

void	NetworkServerStartGame ()

int	NetworkSetupServerAddress (const std::string &serveraddr, int port)
	Parse a network connect event. More...

void	NetworkDetachFromServer ()
	Menu Loop: Server: Mark clients state to send stateinfo message. More...

void	NetworkInitServerConnect (int openslots)
	Setup network connect state machine for clients. More...

void	NetworkServerResyncClients ()
	Menu Loop: Send out server request messages. More...

void	NetworkGamePrepareGameSettings ()
	Server user has finally hit the start game button. More...

static int	CclNoRandomPlacementMultiplayer (lua_State *l)

static int	CclUsesRandomPlacementMultiplayer (lua_State *l)

static int	CclNetworkDiscoverServers (lua_State *l)

void	NetworkCclRegister ()

Macro Definition Documentation

◆ CLIENT_IS_DEAD

#define CLIENT_IS_DEAD 300

◆ CLIENT_LIVE_BEAT

#define CLIENT_LIVE_BEAT 60

Function Documentation

◆ CclNetworkDiscoverServers()

static int CclNetworkDiscoverServers ( lua_State * l )

static

◆ CclNoRandomPlacementMultiplayer()

static int CclNoRandomPlacementMultiplayer ( lua_State * l )

static

Controls Randomization of Player position in Multiplayer mode. Without arguments, disables randomization. Otherwise, sets the NoRandomization flag to the boolean argument value.

Parameters

l	Lua state.

◆ CclUsesRandomPlacementMultiplayer()

static int CclUsesRandomPlacementMultiplayer ( lua_State * l )

static

Return if player positions in multiplayer mode are randomized.

Parameters

l	Lua state.

◆ CheckVersions()

static int CheckVersions	(	const CInitMessage_Hello &	msg,
		CUDPSocket &	socket,
		const CHost &	host
	)

static

Check if the Stratagus version and Network Protocol match

Parameters

msg	message received
host	host which send the message

Returns: 0 if the versions match, -1 otherwise

◆ FindHostIndexBy()

int FindHostIndexBy ( const CHost & host )

Disable the random placement of players in muliplayer mode.

◆ GetNetworkState()

int GetNetworkState ( )

◆ IsLocalSetupInSync()

static bool IsLocalSetupInSync	(	const CServerSetup &	state1,
		const CServerSetup &	state2,
		int	index
	)

static

◆ IsSafeMapName()

static bool IsSafeMapName ( const char * mapname )

static

Check if the map name looks safe.

A map name looks safe when there are no special characters and no .. or // sequences. This way only real valid maps from the map directory will be loaded.

Returns: true if the map name looks safe.

◆ NetworkCclRegister()

void NetworkCclRegister ( )

◆ NetworkDetachFromServer()

void NetworkDetachFromServer ( )

Menu Loop: Server: Mark clients state to send stateinfo message.

Terminate and detach Network connect state machine for the client

◆ NetworkGamePrepareGameSettings()

void NetworkGamePrepareGameSettings ( )

Server user has finally hit the start game button.

Multiplayer network game final copy of server settings to game settings.

◆ NetworkInitClientConnect()

void NetworkInitClientConnect ( )

Setup Network connect state machine for clients

◆ NetworkInitServerConnect()

void NetworkInitServerConnect ( int openslots )

Setup network connect state machine for clients.

Setup Network connect state machine for the server

◆ NetworkParseSetupEvent()

int NetworkParseSetupEvent	(	const unsigned char *	buf,
		int	size,
		const CHost &	host
	)

Setup network connect state machine for the server.

Parse a setup event. (Command type <= MessageInitEvent)

Parameters

buf	Packet received
size	size of the received packet.
host	host which send the message

Returns: 1 if packet is an InitConfig message, 0 otherwise

◆ NetworkProcessClientRequest()

void NetworkProcessClientRequest ( )

Menu: Setup the server IP.

Client Menu Loop: Send out client request messages

◆ NetworkProcessServerRequest()

void NetworkProcessServerRequest ( )

Menu Loop: Send out client request messages.

Server Menu Loop: Send out server request messages

◆ NetworkSendICMessage() [1/2]

void NetworkSendICMessage	(	CUDPSocket &	socket,
		const CHost &	host,
		const CInitMessage_Header &	msg
	)

Menu Loop: Client: Send GoodBye to the server and detach.

◆ NetworkSendICMessage() [2/2]

template<typename T >

static void NetworkSendICMessage	(	CUDPSocket &	socket,
		const CHost &	host,
		const T &	msg
	)

static

Send an InitConfig message across the Network

Parameters

host	Host to send to (network byte order).
port	Port of host to send to (network byte order).
msg	The message to send

◆ NetworkSendICMessage_Log() [1/2]

static void NetworkSendICMessage_Log	(	CUDPSocket &	socket,
		const CHost &	host,
		const CInitMessage_Header &	msg
	)

static

◆ NetworkSendICMessage_Log() [2/2]

template<typename T >

static void NetworkSendICMessage_Log	(	CUDPSocket &	socket,
		const CHost &	host,
		const T &	msg
	)

static

◆ NetworkServerResyncClients()

void NetworkServerResyncClients ( )

Menu Loop: Send out server request messages.

Notify state change by menu user to connected clients

◆ NetworkServerStartGame()

void NetworkServerStartGame ( )

Server user has finally hit the start game button. (This is run on the server)

◆ NetworkSetupServerAddress()

int NetworkSetupServerAddress	(	const std::string &	serveraddr,
		int	port
	)

Parse a network connect event.

Setup the IP-Address of the network server to connect to

Parameters

serveraddr the serveraddress the user has entered

Returns: True, if error; otherwise false.

Variable Documentation

◆ Client

CClient Client

static

◆ Hosts

CNetworkHost Hosts[PlayerMax]

Network players.

◆ icmsgsubtypenames

const char* icmsgsubtypenames[]

static

Initial value:

= {
        "Hello",                   
        "Config",                  
 
        "EngineMismatch",          
        "ProtocolMismatch",        
        "EngineConfMismatch",      
        "MapUidMismatch",          
 
        "GameFull",                
        "Welcome",                 
 
        "Waiting",                 
        "Map",                     
        "State",                   
        "Resync",                  
 
        "ServerQuit",              
        "GoodBye",                 
        "SeeYou",                  
 
        "Go",                      
        "AreYouThere",             
        "IAmHere",                 
 
        "MapNeeded",               
}

◆ LocalSetupState

CServerSetup LocalSetupState

Network menu: Multiplayer Server Menu selections state.

◆ MdnsService

MDNS MdnsService

◆ ncconstatenames

const char* ncconstatenames[]

static

Initial value:

= {
        "ccs_unused",
        "ccs_connecting",          
        "ccs_connected",           
        "ccs_mapinfo",             
        "ccs_badmap",              
        "ccs_synced",              
        "ccs_async",               
        "ccs_changed",             
        "ccs_detaching",           
        "ccs_disconnected",        
        "ccs_unreachable",         
        "ccs_usercanceled",        
        "ccs_nofreeslots",         
        "ccs_serverquits",         
        "ccs_goahead",             
        "ccs_started",             
        "ccs_incompatibleengine",  
        "ccs_incompatibleluafiles", 
        "ccs_needmap",             
}

◆ NetConnectRunning

int NetConnectRunning = 0

Host, ports, and assigned player numbers of all players.

Host, port, and number of all players.

◆ NetConnectType

int NetConnectType = 0

Network menu: Setup mode active.

◆ NetLocalHostsSlot

int NetLocalHostsSlot

Network menu: Setup mode active.

◆ NetLocalPlayerNumber

int NetLocalPlayerNumber

Network menu: Slot # in Hosts array of local client.

◆ NetPlayers

int NetPlayers

Player number of local client.

◆ NetworkMapFragmentName

std::string NetworkMapFragmentName

Name of the map received with ICMMap.

◆ NetworkMapName

std::string NetworkMapName

How many network players.

Player number of local client.

◆ NoRandomPlacementMultiplayer

bool NoRandomPlacementMultiplayer = false

Name of the map currently loading via ICMMapNeeded.

Network menu: Multiplayer Client Menu selections local state.

◆ Server

CServer Server

static

◆ ServerSetupState

CServerSetup ServerSetupState

Disable the random placement of players in muliplayer mode.

Name of the map currently loading via ICMMapNeeded.

Classes

netconnect.cpp - The network high level connection code.

Macro Definition Documentation

◆ CLIENT_IS_DEAD

◆ CLIENT_LIVE_BEAT

Function Documentation

◆ CclNetworkDiscoverServers()

◆ CclNoRandomPlacementMultiplayer()

◆ CclUsesRandomPlacementMultiplayer()

◆ CheckVersions()

◆ FindHostIndexBy()

◆ GetNetworkState()

◆ IsLocalSetupInSync()

◆ IsSafeMapName()

◆ NetworkCclRegister()

◆ NetworkDetachFromServer()

◆ NetworkGamePrepareGameSettings()

◆ NetworkInitClientConnect()

◆ NetworkInitServerConnect()

◆ NetworkParseSetupEvent()

◆ NetworkProcessClientRequest()

◆ NetworkProcessServerRequest()

◆ NetworkSendICMessage() [1/2]

◆ NetworkSendICMessage() [2/2]

◆ NetworkSendICMessage_Log() [1/2]

◆ NetworkSendICMessage_Log() [2/2]

◆ NetworkServerResyncClients()

◆ NetworkServerStartGame()

◆ NetworkSetupServerAddress()

Variable Documentation

◆ Client

◆ Hosts

◆ icmsgsubtypenames

◆ LocalSetupState

◆ MdnsService

◆ ncconstatenames

◆ NetConnectRunning

◆ NetConnectType

◆ NetLocalHostsSlot

◆ NetLocalPlayerNumber

◆ NetPlayers

◆ NetworkMapFragmentName

◆ NetworkMapName

◆ NoRandomPlacementMultiplayer

◆ Server

◆ ServerSetupState