Lee Salzman
9cb0de9d2d
git-svn-id: svn://svn.code.sf.net/p/actiongame/code/trunk/ac@717 e016b1c5-ed68-44aa-a2f7-31cac88cffde
495 lines
14 KiB
C++
495 lines
14 KiB
C++
// client processing of the incoming network stream
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#include "cube.h"
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extern int clientnum;
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extern bool c2sinit, senditemstoserver;
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extern string clientpassword;
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void neterr(char *s)
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{
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conoutf("illegal network message (%s)", s);
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disconnect();
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};
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void changemapserv(char *name, int mode) // forced map change from the server
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{
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gamemode = mode;
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load_world(name);
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};
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void changemap(char *name) // request map change, server may ignore
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{
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addmsg(SV_MAPCHANGE, "rsi", name, nextmode);
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};
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// update the position of other clients in the game in our world
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// don't care if he's in the scenery or other players,
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// just don't overlap with our client
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void updatepos(playerent *d)
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{
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const float r = player1->radius+d->radius;
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const float dx = player1->o.x-d->o.x;
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const float dy = player1->o.y-d->o.y;
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const float dz = player1->o.z-d->o.z;
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const float rz = player1->aboveeye+d->eyeheight;
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const float fx = (float)fabs(dx), fy = (float)fabs(dy), fz = (float)fabs(dz);
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if(fx<r && fy<r && fz<rz && d->state!=CS_DEAD)
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{
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if(fx<fy) d->o.y += dy<0 ? r-fy : -(r-fy); // push aside
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else d->o.x += dx<0 ? r-fx : -(r-fx);
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};
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int lagtime = lastmillis-d->lastupdate;
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if(lagtime)
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{
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d->plag = (d->plag*5+lagtime)/6;
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d->lastupdate = lastmillis;
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};
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};
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extern void trydisconnect();
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void parsepositions(ucharbuf &p)
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{
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int type;
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while(p.remaining()) switch(type = getint(p))
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{
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case SV_POS: // position of another client
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{
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int cn = getint(p);
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vec o, vel;
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float yaw, pitch, roll;
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o.x = getuint(p)/DMF;
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o.y = getuint(p)/DMF;
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o.z = getuint(p)/DMF;
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yaw = getuint(p)/DAF;
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pitch = getint(p)/DAF;
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roll = getint(p)/DAF;
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vel.x = getint(p)/DVF;
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vel.y = getint(p)/DVF;
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vel.z = getint(p)/DVF;
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int f = getint(p);
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playerent *d = getclient(cn);
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if(!d) continue;
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d->o = o;
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d->yaw = yaw;
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d->pitch = pitch;
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d->roll = roll;
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d->vel = vel;
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d->strafe = (f&3)==3 ? -1 : f&3;
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f >>= 2;
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d->move = (f&3)==3 ? -1 : f&3;
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f >>= 2;
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d->onfloor = f&1;
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f >>= 1;
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int state = f&7;
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if(state==CS_DEAD && d->state!=CS_DEAD) d->lastaction = lastmillis;
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d->state = state;
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f >>= 3;
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d->onladder = f&1;
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if(!demoplayback) updatepos(d);
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break;
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};
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default:
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neterr("type");
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return;
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};
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};
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void parsemessages(int cn, playerent *d, ucharbuf &p)
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{
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static char text[MAXTRANS];
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int type;
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bool mapchanged = false, c2si = false, gib = false, joining = false;
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while(p.remaining()) switch(type = getint(p))
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{
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case SV_INITS2C: // welcome messsage from the server
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{
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int mycn = getint(p), prot = getint(p);
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if(prot!=PROTOCOL_VERSION)
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{
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conoutf("you are using a different game protocol (you: %d, server: %d)", PROTOCOL_VERSION, prot);
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disconnect();
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return;
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};
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clientnum = mycn; // we are now fully connected
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bool firstplayer = !getint(p);
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if(getint(p) > 0) conoutf("INFO: this server is password protected");
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if(!firstplayer) joining = true;
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else if(getclientmap()[0]) changemap(getclientmap()); // we are the first client on this server, set map
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break;
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};
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case SV_CLIENT:
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{
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int cn = getint(p), len = getuint(p);
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ucharbuf q = p.subbuf(len);
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parsemessages(cn, getclient(cn), q);
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break;
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};
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case SV_SOUND:
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playsound(getint(p), d ? &d->o : NULL);
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break;
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case SV_TEXT:
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if(!d) return;
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getstring(text, p);
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conoutf("%s:\f %s", d->name, &text);
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break;
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case SV_MAPCHANGE:
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getstring(text, p);
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changemapserv(text, getint(p));
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if(joining && m_arena)
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{
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player1->state = CS_DEAD;
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showscores(true);
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};
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mapchanged = true;
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break;
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case SV_ITEMLIST:
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{
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int n;
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if(mapchanged) { senditemstoserver = false; resetspawns(); };
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while((n = getint(p))!=-1) if(mapchanged) setspawn(n, true);
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break;
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};
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case SV_MAPRELOAD: // server requests next map
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{
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getint(p);
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s_sprintfd(nextmapalias)("nextmap_%s", getclientmap());
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char *map = getalias(nextmapalias); // look up map in the cycle
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changemap(map ? map : getclientmap());
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break;
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};
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case SV_INITC2S: // another client either connected or changed name/team
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{
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d = newclient(cn);
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getstring(text, p);
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if(!text[0]) s_strcpy(text, "unarmed");
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if(d->name[0]) // already connected
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{
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if(strcmp(d->name, text))
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conoutf("%s is now known as %s", d->name, &text);
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}
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else // new client
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{
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c2sinit = false; // send new players my info again
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conoutf("connected: %s", &text);
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gun_changed = true;
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};
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s_strncpy(d->name, text, MAXNAMELEN+1);
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getstring(text, p);
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s_strncpy(d->team, text, MAXTEAMLEN+1);
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d->skin = getint(p);
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d->lifesequence = getint(p);
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c2si = true;
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break;
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};
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case SV_CDIS:
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{
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int cn = getint(p);
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playerent *d = getclient(cn);
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if(!d) break;
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if(d->name[0]) conoutf("player %s disconnected", d->name);
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zapplayer(players[cn]);
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break;
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};
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case SV_SHOT:
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{
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if(!d) return;
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int gun = getint(p);
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vec s, e;
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s.x = getint(p)/DMF;
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s.y = getint(p)/DMF;
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s.z = getint(p)/DMF;
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e.x = getint(p)/DMF;
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e.y = getint(p)/DMF;
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e.z = getint(p)/DMF;
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if(gun==GUN_SHOTGUN) createrays(s, e);
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d->lastaction = lastmillis;
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d->lastattackgun = gun;
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shootv(gun, s, e, d, false, getint(p));
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break;
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};
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case SV_GIBDAMAGE:
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gib = true;
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case SV_DAMAGE:
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{
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if(!d) return;
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int target = getint(p);
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int damage = getint(p);
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int ls = getint(p);
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if(target==clientnum) { if(ls==player1->lifesequence) selfdamage(damage, cn, d, gib); }
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else
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{
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playerent *victim = getclient(target);
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playsound(S_PAIN1+rnd(5), &victim->o);
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victim->lastpain = lastmillis;
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};
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gib = false;
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break;
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};
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case SV_GIBDIED:
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gib = true;
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case SV_DIED:
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{
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if(!d) return;
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int actor = getint(p);
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if(actor==cn)
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{
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conoutf("%s suicided", d->name);
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}
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else if(actor==clientnum)
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{
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int frags;
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if(isteam(player1->team, d->team))
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{
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frags = -1;
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conoutf("you fragged a teammate (%s)", d->name);
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}
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else
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{
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frags = 1;
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conoutf("you fragged %s", d->name);
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};
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addmsg(SV_FRAGS, "ri", player1->frags += frags);
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if(gib) addgib(d);
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}
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else
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{
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playerent *a = getclient(actor);
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if(a)
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{
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if(isteam(a->team, d->name))
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{
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conoutf("%s fragged his teammate (%s)", a->name, d->name);
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}
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else
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{
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conoutf("%s fragged %s", a->name, d->name);
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};
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if(gib) addgib(d);
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};
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};
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playsound(S_DIE1+rnd(2), &d->o);
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if(!c2si) d->lifesequence++;
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gib = false;
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break;
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};
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case SV_FRAGS:
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if(!d) return;
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d->frags = getint(p);
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break;
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case SV_RESUME:
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{
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int cn = getint(p), frags = getint(p), flags = getint(p);
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playerent *d = cn==clientnum ? player1 : newclient(cn);
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if(d)
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{
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d->frags = frags;
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d->flagscore = flags;
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};
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break;
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};
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case SV_ITEMPICKUP:
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setspawn(getint(p), false);
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getint(p);
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break;
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case SV_ITEMSPAWN:
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{
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uint i = getint(p);
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setspawn(i, true);
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break;
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};
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case SV_ITEMACC: // server acknowledges that I picked up this item
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realpickup(getint(p), player1);
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break;
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case SV_EDITH: // coop editing messages, should be extended to include all possible editing ops
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case SV_EDITT:
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case SV_EDITS:
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case SV_EDITD:
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case SV_EDITE:
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{
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int x = getint(p);
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int y = getint(p);
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int xs = getint(p);
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int ys = getint(p);
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int v = getint(p);
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block b = { x, y, xs, ys };
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switch(type)
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{
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case SV_EDITH: editheightxy(v!=0, getint(p), b); break;
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case SV_EDITT: edittexxy(v, getint(p), b); break;
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case SV_EDITS: edittypexy(v, b); break;
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case SV_EDITD: setvdeltaxy(v, b); break;
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case SV_EDITE: editequalisexy(v!=0, b); break;
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};
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break;
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};
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case SV_EDITENT: // coop edit of ent
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{
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uint i = getint(p);
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while((uint)ents.length()<=i) ents.add().type = NOTUSED;
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int to = ents[i].type;
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ents[i].type = getint(p);
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ents[i].x = getint(p);
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ents[i].y = getint(p);
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ents[i].z = getint(p);
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ents[i].attr1 = getint(p);
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ents[i].attr2 = getint(p);
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ents[i].attr3 = getint(p);
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ents[i].attr4 = getint(p);
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ents[i].spawned = false;
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if(ents[i].type==LIGHT || to==LIGHT) calclight();
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break;
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};
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case SV_PONG:
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addmsg(SV_CLIENTPING, "i", player1->ping = (player1->ping*5+lastmillis-getint(p))/6);
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break;
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case SV_CLIENTPING:
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if(!d) return;
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d->ping = getint(p);
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break;
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case SV_GAMEMODE:
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nextmode = getint(p);
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break;
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case SV_TIMEUP:
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timeupdate(getint(p));
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break;
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case SV_RECVMAP:
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{
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getstring(text, p);
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conoutf("received map \"%s\" from server, reloading..", &text);
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int mapsize = getint(p);
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if(p.remaining() < mapsize)
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{
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p.forceoverread();
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break;
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};
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writemap(text, mapsize, &p.buf[p.len]);
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p.len += mapsize;
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changemapserv(text, gamemode);
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break;
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};
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case SV_WEAPCHANGE:
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{
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if(!d) return;
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d->gunselect = getint(p);
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break;
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};
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case SV_SERVMSG:
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getstring(text, p);
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conoutf("%s", text);
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break;
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// EDIT: AH
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case SV_FLAGINFO:
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{
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int flag = getint(p);
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if(flag<0||flag>1) return;
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flaginfo &f = flaginfos[flag];
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f.state = getint(p);
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int action = getint(p);
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if(f.state==CTFF_STOLEN)
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{
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int actor_cn = getint(p);
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f.actor = actor_cn == getclientnum() ? player1 : getclient(actor_cn);
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f.flag->spawned = false;
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}
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else if(f.state==CTFF_DROPPED)
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{
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f.flag->x = (ushort) (getint(p)/DMF);
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f.flag->y = (ushort) (getint(p)/DMF);
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f.flag->z = (ushort) (getint(p)/DMF);
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f.flag->z -= 4;
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float floor = (float)S(f.flag->x, f.flag->y)->floor;
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if(f.flag->z > hdr.waterlevel) // above water
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{
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if(floor < hdr.waterlevel)
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f.flag->z = hdr.waterlevel; // avoid dropping into water
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else
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f.flag->z = (short)floor;
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};
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f.flag->spawned = true;
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}
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else if(f.state==CTFF_INBASE)
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{
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if(action==SV_FLAGRETURN)
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{
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int returnerer_cn = getint(p);
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f.actor = returnerer_cn == getclientnum() ? player1 : getclient(returnerer_cn);
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}
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f.flag->x = (ushort) f.originalpos.x;
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f.flag->y = (ushort) f.originalpos.y;
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f.flag->z = (ushort) f.originalpos.z;
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f.flag->spawned = true;
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};
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flagaction(flag, action);
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break;
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};
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case SV_FLAGS:
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{
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if(!d) return;
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d->flagscore = getint(p);
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break;
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};
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/* demo recording compat */
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case SV_PING:
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getint(p);
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break;
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// End add
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default:
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neterr("type");
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return;
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};
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};
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void localservertoclient(int chan, uchar *buf, int len) // processes any updates from the server
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{
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incomingdemodata(chan, buf, len);
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ucharbuf p(buf, len);
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switch(chan)
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{
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case 0: parsepositions(p); break;
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case 1:
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case 2: parsemessages(-1, NULL, p); break;
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case 42: // player1 demo data only
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extern int democlientnum;
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parsemessages(democlientnum, getclient(democlientnum), p);
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break;
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};
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};
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