Lee Salzman
70206b3bce
git-svn-id: svn://svn.code.sf.net/p/actiongame/code/trunk/ac@473 e016b1c5-ed68-44aa-a2f7-31cac88cffde
359 lines
10 KiB
C++
359 lines
10 KiB
C++
// client.cpp, mostly network related client game code
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#include "cube.h"
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ENetHost *clienthost = NULL;
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int connecting = 0;
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int connattempts = 0;
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int disconnecting = 0;
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int clientnum = -1; // our client id in the game
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bool c2sinit = false; // whether we need to tell the other clients our stats
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int getclientnum() { return clientnum; };
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bool multiplayer()
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{
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// check not correct on listen server?
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if(clienthost) conoutf("operation not available in multiplayer");
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return clienthost!=NULL;
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};
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bool allowedittoggle()
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{
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bool allow = !clienthost || gamemode==1;
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if(!allow) conoutf("editing in multiplayer requires coopedit mode (1)");
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return allow;
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};
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VARF(rate, 0, 0, 25000, if(clienthost && (!rate || rate>1000)) enet_host_bandwidth_limit (clienthost, rate, rate));
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void throttle();
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VARF(throttle_interval, 0, 5, 30, throttle());
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VARF(throttle_accel, 0, 2, 32, throttle());
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VARF(throttle_decel, 0, 2, 32, throttle());
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void throttle()
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{
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if(!clienthost || connecting) return;
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ASSERT(ENET_PEER_PACKET_THROTTLE_SCALE==32);
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enet_peer_throttle_configure(clienthost->peers, throttle_interval*1000, throttle_accel, throttle_decel);
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};
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void ctf_team(char *name)
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{
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bool isvalidteam = strcmp(name, "RVSF") == 0 || strcmp(name, "CLA") == 0;
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if(strcmp(name, player1->team) == 0 && isvalidteam) return;
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c2sinit = false;
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ctf_death();
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if(isvalidteam) strcpy(player1->team, name);
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else strcpy(player1->team, rb_team_string(rnd(2)));
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player1->lastaction = lastmillis;
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player1->state = CS_DEAD;
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};
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void newname(char *name) { c2sinit = false; s_strncpy(player1->name, name, 16); };
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void newskin(int skin) { player1->nextskin = max(0, min(skin, (rb_team_int(player1->team)==TEAM_CLA ? 3 : 5))); };
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void newteam(char *name)
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{
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if(m_teammode) ctf_team(name);
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else { s_strncpy(player1->team, name, 5); c2sinit=false; };
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};
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COMMANDN(team, newteam, ARG_1STR);
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COMMANDN(name, newname, ARG_1STR);
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COMMANDN(skin, newskin, ARG_1INT);
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void connects(char *servername)
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{
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disconnect(1); // reset state
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addserver(servername);
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conoutf("attempting to connect to %s", servername);
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ENetAddress address = { ENET_HOST_ANY, CUBE_SERVER_PORT };
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if(enet_address_set_host(&address, servername) < 0)
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{
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conoutf("could not resolve server %s", servername);
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return;
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};
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clienthost = enet_host_create(NULL, 1, rate, rate);
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if(clienthost)
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{
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enet_host_connect(clienthost, &address, 1);
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enet_host_flush(clienthost);
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connecting = lastmillis;
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connattempts = 0;
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}
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else
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{
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conoutf("could not connect to server");
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disconnect();
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};
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};
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void disconnect(int onlyclean, int async)
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{
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if(clienthost)
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{
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if(!connecting && !disconnecting)
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{
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enet_peer_disconnect(clienthost->peers);
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enet_host_flush(clienthost);
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disconnecting = lastmillis;
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};
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if(clienthost->peers->state != ENET_PEER_STATE_DISCONNECTED)
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{
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if(async) return;
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enet_peer_reset(clienthost->peers);
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};
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enet_host_destroy(clienthost);
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};
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if(clienthost && !connecting) conoutf("disconnected");
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clienthost = NULL;
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connecting = 0;
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connattempts = 0;
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disconnecting = 0;
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clientnum = -1;
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c2sinit = false;
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player1->lifesequence = 0;
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loopv(players) zapdynent(players[i]);
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localdisconnect();
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if(!onlyclean) { stop(); localconnect(); };
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};
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void trydisconnect()
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{
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if(!clienthost)
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{
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conoutf("not connected");
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return;
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};
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if(connecting)
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{
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conoutf("aborting connection attempt");
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disconnect();
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return;
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};
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conoutf("attempting to disconnect...");
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disconnect(0, !disconnecting);
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};
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string ctext;
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void toserver(char *text) { conoutf("%s:\f %s", player1->name, text); s_strncpy(ctext, text, 80); };
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void echo(char *text) { conoutf("%s", text); };
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COMMAND(echo, ARG_VARI);
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COMMANDN(say, toserver, ARG_VARI);
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COMMANDN(connect, connects, ARG_1STR);
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COMMANDN(disconnect, trydisconnect, ARG_NONE);
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// collect c2s messages conveniently
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vector<ivector> messages;
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void addmsg(int rel, int num, int type, ...)
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{
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if(demoplayback) return;
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if(num!=msgsizelookup(type)) { s_sprintfd(s)("inconsistant msg size for %d (%d != %d)", type, num, msgsizelookup(type)); fatal(s); };
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if(messages.length()==100) { conoutf("command flood protection (type %d)", type); return; };
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ivector &msg = messages.add();
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msg.add(num);
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msg.add(rel);
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msg.add(type);
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va_list marker;
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va_start(marker, type);
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loopi(num-1) msg.add(va_arg(marker, int));
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va_end(marker);
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};
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void server_err()
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{
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conoutf("server network error or player kick, disconnecting...");
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disconnect();
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};
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int lastupdate = 0, lastping = 0;
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string toservermap;
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bool senditemstoserver = false; // after a map change, since server doesn't have map data
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string clientpassword;
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char *toserverpwd = NULL;
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void password(char *p) { s_strcpy(clientpassword, p); };
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COMMAND(password, ARG_1STR);
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bool netmapstart() { senditemstoserver = true; return clienthost!=NULL; };
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void initclientnet()
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{
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ctext[0] = 0;
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toservermap[0] = 0;
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clientpassword[0] = 0;
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toserverpwd = NULL;
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newname("unnamed");
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ctf_team("red");
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};
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void sendpackettoserv(void *packet)
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{
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if(clienthost) { enet_host_broadcast(clienthost, 0, (ENetPacket *)packet); enet_host_flush(clienthost); }
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else localclienttoserver((ENetPacket *)packet);
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}
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void c2skeepalive()
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{
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if(clientnum<0 || !clienthost) return;
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if(lastmillis-lastupdate<40) return;
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ENetEvent event;
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while(clienthost!=NULL && enet_host_service(clienthost, &event, 0)>0) {}; // fixme
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lastupdate = SDL_GetTicks();
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};
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extern string masterpwd;
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void c2sinfo(dynent *d) // send update to the server
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{
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if(clientnum<0) return; // we haven't had a welcome message from the server yet
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if(lastmillis-lastupdate<40) return; // don't update faster than 25fps
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ENetPacket *packet = enet_packet_create (NULL, MAXTRANS, 0);
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ucharbuf p(packet->data, MAXTRANS);
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bool serveriteminitdone = false;
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if(toserverpwd)
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{
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packet->flags = ENET_PACKET_FLAG_RELIABLE;
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putint(p, SV_PWD);
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sendstring(toserverpwd, p);
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toserverpwd[0] = 0;
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toserverpwd = NULL;
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}
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else if(toservermap[0]) // suggest server to change map
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{ // do this exclusively as map change may invalidate rest of update
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packet->flags = ENET_PACKET_FLAG_RELIABLE;
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putint(p, SV_MAPCHANGE);
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sendstring(toservermap, p);
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toservermap[0] = 0;
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putint(p, nextmode);
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}
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else if(masterpwd[0])
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{
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packet->flags = ENET_PACKET_FLAG_RELIABLE;
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putint(p, SV_GETMASTER);
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sendstring(masterpwd, p);
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masterpwd[0] = 0;
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}
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else
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{
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putint(p, SV_POS);
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putint(p, clientnum);
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putint(p, (int)(d->o.x*DMF)); // quantize coordinates to 1/16th of a cube, between 1 and 3 bytes
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putint(p, (int)(d->o.y*DMF));
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putint(p, (int)(d->o.z*DMF));
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putint(p, (int)(d->yaw*DAF));
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putint(p, (int)(d->pitch*DAF));
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putint(p, (int)(d->roll*DAF));
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putint(p, (int)(d->vel.x*DVF)); // quantize to 1/100, almost always 1 byte
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putint(p, (int)(d->vel.y*DVF));
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putint(p, (int)(d->vel.z*DVF));
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// pack rest in 1 byte: strafe:2, move:2, onfloor:1, state:3
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putint(p, (d->strafe&3) | ((d->move&3)<<2) | (((int)d->onfloor)<<4) | ((editmode ? CS_EDITING : d->state)<<5) );
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if(gun_changed)
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{
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putint(p, SV_WEAPCHANGE);
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putint(p, player1->gunselect);
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gun_changed = false;
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};
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if(senditemstoserver)
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{
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packet->flags = ENET_PACKET_FLAG_RELIABLE;
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putint(p, SV_ITEMLIST);
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if(!m_noitems) putitems(p);
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putint(p, -1);
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senditemstoserver = false;
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serveriteminitdone = true;
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};
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if(ctext[0]) // player chat, not flood protected for now
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{
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packet->flags = ENET_PACKET_FLAG_RELIABLE;
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putint(p, SV_TEXT);
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sendstring(ctext, p);
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ctext[0] = 0;
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};
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if(!c2sinit) // tell other clients who I am
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{
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packet->flags = ENET_PACKET_FLAG_RELIABLE;
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c2sinit = true;
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putint(p, SV_INITC2S);
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sendstring(player1->name, p);
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sendstring(player1->team, p);
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putint(p, player1->skin);
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putint(p, player1->lifesequence);
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};
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loopv(messages) // send messages collected during the previous frames
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{
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ivector &msg = messages[i];
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if(msg[1]) packet->flags = ENET_PACKET_FLAG_RELIABLE;
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loopi(msg[0]) putint(p, msg[i+2]);
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};
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messages.setsize(0);
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if(lastmillis-lastping>250)
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{
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putint(p, SV_PING);
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putint(p, lastmillis);
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lastping = lastmillis;
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};
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};
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enet_packet_resize(packet, p.length());
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incomingdemodata(p.buf, p.length(), true);
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if(clienthost) { enet_host_broadcast(clienthost, 0, packet); enet_host_flush(clienthost); }
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else localclienttoserver(packet);
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lastupdate = lastmillis;
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if(serveriteminitdone) loadgamerest(); // hack
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};
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void gets2c() // get updates from the server
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{
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ENetEvent event;
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if(!clienthost) return;
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if(connecting && lastmillis/3000 > connecting/3000)
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{
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conoutf("attempting to connect...");
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connecting = lastmillis;
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++connattempts;
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if(connattempts > 3)
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{
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conoutf("could not connect to server");
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disconnect();
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return;
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};
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};
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while(clienthost!=NULL && enet_host_service(clienthost, &event, 0)>0)
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switch(event.type)
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{
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case ENET_EVENT_TYPE_CONNECT:
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conoutf("connected to server");
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connecting = 0;
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throttle();
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break;
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case ENET_EVENT_TYPE_RECEIVE:
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if(disconnecting)
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conoutf("attempting to disconnect...");
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else localservertoclient(event.packet->data, event.packet->dataLength);
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enet_packet_destroy(event.packet);
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break;
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case ENET_EVENT_TYPE_DISCONNECT:
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if(disconnecting) disconnect();
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else
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server_err();
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return;
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}
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};
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