Function I_InitNetwork

source/common/engine/i_net.cpp:982–1034

I_InitNetwork Returns true if packet server mode might be a good idea.

// Returns true if packet server mode might be a good idea.
//
int I_InitNetwork (void)
{
	int i;
	const char *v;

	memset (&doomcom, 0, sizeof(doomcom));

	// set up for network
	v = Args->CheckValue ("-dup");
	if (v)
	{
		doomcom.ticdup = clamp<int> (atoi (v), 1, MAXTICDUP);
	}
	else
	{
		doomcom.ticdup = 1;
	}

	v = Args->CheckValue ("-port");
	if (v)
	{
		DOOMPORT = atoi (v);
		Printf ("using alternate port %i\n", DOOMPORT);
	}

	// parse network game options,
	//		player 1: -host <numplayers>
	//		player x: -join <player 1's address>
	if ( (i = Args->CheckParm ("-host")) )
	{
		if (!HostGame (i)) return -1;
	}
	else if ( (i = Args->CheckParm ("-join")) )
	{
		if (!JoinGame (i)) return -1;
	}
	else
	{
		// single player game
		netgame = false;
		multiplayer = false;
		doomcom.id = DOOMCOM_ID;
		doomcom.numplayers = doomcom.numnodes = 1;
		doomcom.consoleplayer = 0;
		return false;
	}
	if (doomcom.numnodes < 3)
	{ // Packet server mode with only two players is effectively the same as
	  // peer-to-peer but with some slightly larger packets.
		return false;
	}
	return doomcom.numnodes > 3 || !NodesOnSameNetwork();
}


void I_NetCmd (void)