void trydisconnect()
{
if(connpeer) abortconnect();
else if(curpeer || connectedlocally)
{
if(verbose) conoutft(CON_MESG, "\faattempting to disconnect...");
disconnect(0, !discmillis);
}
else conoutft(CON_MESG, "\frnot connected");
}
bool multiplayer(bool msg)
{
// check if we're playing alone
int n = client::otherclients();
if(n && msg) conoutft(CON_MESG, "\froperation not available with other clients");
return n > 0;
}
void connectserv(const char *name, int port, const char *password)
{
abortconnect();
if(!port) port = ENG_SERVER_PORT;
ENetAddress address;
address.port = port;
setsvar("serveraddress", "");
setvar("serverconport", 0);
if(name && *name)
{
addserver(name, port);
conoutft(CON_MESG, "\faattempting to connect to %s:[%d]", name, port);
if(!resolverwait(name, &address))
{
conoutft(CON_MESG, "\frcould not resolve host %s", name);
connectfail();
return;
}
setsvar("serveraddress", name);
setvar("serverconport", port);
}
else
{
conoutft(CON_MESG, "\faattempting to connect to a local server");
address.host = ENET_HOST_BROADCAST;
}
if(!clienthost)
clienthost = enet_host_create(NULL, 2, server::numchannels(), rate, rate);
if(clienthost)
{
connpeer = enet_host_connect(clienthost, &address, server::numchannels(), 0);
enet_host_flush(clienthost);
connmillis = totalmillis;
connattempts = 0;
client::connectattempt(name ? name : "", port, password ? password : "", address);
conoutft(CON_MESG, "\fgconnecting to %s:[%d]", name != NULL ? name : "local server", port);
}
else
{
conoutft(CON_MESG, "\frfailed creating client socket");
connectfail();
}
}
void abortconnect(bool msg)
{
if(!connpeer) return;
client::connectfail();
if(msg) conoutft(CON_MESG, "\faaborting connection attempt");
if(connpeer->state!=ENET_PEER_STATE_DISCONNECTED) enet_peer_reset(connpeer);
connpeer = NULL;
if(curpeer) return;
enet_host_destroy(clienthost);
clienthost = NULL;
}
void gets2c() // get updates from the server
{
ENetEvent event;
if(!clienthost) return;
if(connpeer && totalmillis/3000 > connmillis/3000)
{
connmillis = totalmillis;
++connattempts;
if(connattempts > 3)
{
conoutft(CON_MESG, "\frcould not connect to server");
connectfail();
return;
}
else conoutft(CON_MESG, "\faconnection attempt %d", connattempts);
}
while(clienthost && enet_host_service(clienthost, &event, 0)>0)
switch(event.type)
{
case ENET_EVENT_TYPE_CONNECT:
disconnect(1);
curpeer = connpeer;
connpeer = NULL;
conoutft(CON_MESG, "\fgconnected to server");
throttle();
if(rate) setrate(rate);
client::gameconnect(true);
break;
case ENET_EVENT_TYPE_RECEIVE:
if(discmillis) conoutft(CON_MESG, "\faattempting to disconnect...");
else localservertoclient(event.channelID, event.packet);
enet_packet_destroy(event.packet);
break;
case ENET_EVENT_TYPE_DISCONNECT:
if(event.data>=DISC_NUM) event.data = DISC_NONE;
if(event.peer==connpeer)
{
conoutft(CON_MESG, "\frcould not connect to server");
connectfail();
}
else
{
if(!discmillis || event.data) conoutft(CON_MESG, "\frserver network error, disconnecting (%s) ...", disc_reasons[event.data]);
disconnect();
}
return;
default:
break;
}
}
void disconnect(int onlyclean, int async)
{
bool cleanup = onlyclean!=0;
if(curpeer || connectedlocally)
{
if(curpeer)
{
if(!discmillis)
{
enet_peer_disconnect(curpeer, DISC_NONE);
if(clienthost) enet_host_flush(clienthost);
discmillis = totalmillis;
}
if(curpeer->state!=ENET_PEER_STATE_DISCONNECTED)
{
if(async) return;
enet_peer_reset(curpeer);
}
curpeer = NULL;
}
discmillis = 0;
conoutft(CON_MESG, "\frdisconnected");
cleanup = true;
}
if(!connpeer && clienthost)
{
enet_host_destroy(clienthost);
clienthost = NULL;
}
if(cleanup)
{
client::gamedisconnect(onlyclean);
localdisconnect();
}
if(!onlyclean) localconnect(false);
}
void neterr(const char *s)
{
conoutft(CON_MESG, "\frillegal network message (%s)", s);
disconnect();
}