g_client.c

quakeIII源码这个不用我多说吧

	body->clipmask = CONTENTS_SOLID | CONTENTS_PLAYERCLIP;
	body->r.contents = CONTENTS_CORPSE;
	body->r.ownerNum = ent->s.number;

	body->nextthink = level.time + 5000;
	body->think = BodySink;

	body->die = body_die;

	// don't take more damage if already gibbed
	if ( ent->health <= GIB_HEALTH ) {
		body->takedamage = qfalse;
	} else {
		body->takedamage = qtrue;
	}


	VectorCopy ( body->s.pos.trBase, body->r.currentOrigin );
	trap_LinkEntity (body);
}

//======================================================================


/*
==================
SetClientViewAngle

==================
*/
void SetClientViewAngle( gentity_t *ent, vec3_t angle ) {
	int			i;

	// set the delta angle
	for (i=0 ; i<3 ; i++) {
		int		cmdAngle;

		cmdAngle = ANGLE2SHORT(angle[i]);
		ent->client->ps.delta_angles[i] = cmdAngle - ent->client->pers.cmd.angles[i];
	}
	VectorCopy( angle, ent->s.angles );
	VectorCopy (ent->s.angles, ent->client->ps.viewangles);
}

/*
================
respawn
================
*/
void respawn( gentity_t *ent ) {
	gentity_t	*tent;

	CopyToBodyQue (ent);
	ClientSpawn(ent);

	// add a teleportation effect
	tent = G_TempEntity( ent->client->ps.origin, EV_PLAYER_TELEPORT_IN );
	tent->s.clientNum = ent->s.clientNum;
}

/*
================
TeamCount

Returns number of players on a team
================
*/
team_t TeamCount( int ignoreClientNum, int team ) {
	int		i;
	int		count = 0;

	for ( i = 0 ; i < level.maxclients ; i++ ) {
		if ( i == ignoreClientNum ) {
			continue;
		}
		if ( level.clients[i].pers.connected == CON_DISCONNECTED ) {
			continue;
		}
		if ( level.clients[i].sess.sessionTeam == team ) {
			count++;
		}
	}

	return count;
}

/*
================
TeamLeader

Returns the client number of the team leader
================
*/
int TeamLeader( int team ) {
	int		i;

	for ( i = 0 ; i < level.maxclients ; i++ ) {
		if ( level.clients[i].pers.connected == CON_DISCONNECTED ) {
			continue;
		}
		if ( level.clients[i].sess.sessionTeam == team ) {
			if ( level.clients[i].sess.teamLeader )
				return i;
		}
	}

	return -1;
}


/*
================
PickTeam

================
*/
team_t PickTeam( int ignoreClientNum ) {
	int		counts[TEAM_NUM_TEAMS];

	counts[TEAM_BLUE] = TeamCount( ignoreClientNum, TEAM_BLUE );
	counts[TEAM_RED] = TeamCount( ignoreClientNum, TEAM_RED );

	if ( counts[TEAM_BLUE] > counts[TEAM_RED] ) {
		return TEAM_RED;
	}
	if ( counts[TEAM_RED] > counts[TEAM_BLUE] ) {
		return TEAM_BLUE;
	}
	// equal team count, so join the team with the lowest score
	if ( level.teamScores[TEAM_BLUE] > level.teamScores[TEAM_RED] ) {
		return TEAM_RED;
	}
	return TEAM_BLUE;
}

/*
===========
ForceClientSkin

Forces a client's skin (for teamplay)
===========
*/
/*
static void ForceClientSkin( gclient_t *client, char *model, const char *skin ) {
	char *p;

	if ((p = Q_strrchr(model, '/')) != 0) {
		*p = 0;
	}

	Q_strcat(model, MAX_QPATH, "/");
	Q_strcat(model, MAX_QPATH, skin);
}
*/

/*
===========
ClientCheckName
============
*/
static void ClientCleanName( const char *in, char *out, int outSize ) {
	int		len, colorlessLen;
	char	ch;
	char	*p;
	int		spaces;

	//save room for trailing null byte
	outSize--;

	len = 0;
	colorlessLen = 0;
	p = out;
	*p = 0;
	spaces = 0;

	while( 1 ) {
		ch = *in++;
		if( !ch ) {
			break;
		}

		// don't allow leading spaces
		if( !*p && ch == ' ' ) {
			continue;
		}

		// check colors
		if( ch == Q_COLOR_ESCAPE ) {
			// solo trailing carat is not a color prefix
			if( !*in ) {
				break;
			}

			// don't allow black in a name, period
			if( ColorIndex(*in) == 0 ) {
				in++;
				continue;
			}

			// make sure room in dest for both chars
			if( len > outSize - 2 ) {
				break;
			}

			*out++ = ch;
			*out++ = *in++;
			len += 2;
			continue;
		}

		// don't allow too many consecutive spaces
		if( ch == ' ' ) {
			spaces++;
			if( spaces > 3 ) {
				continue;
			}
		}
		else {
			spaces = 0;
		}

		if( len > outSize - 1 ) {
			break;
		}

		*out++ = ch;
		colorlessLen++;
		len++;
	}
	*out = 0;

	// don't allow empty names
	if( *p == 0 || colorlessLen == 0 ) {
		Q_strncpyz( p, "UnnamedPlayer", outSize );
	}
}


/*
===========
ClientUserInfoChanged

Called from ClientConnect when the player first connects and
directly by the server system when the player updates a userinfo variable.

The game can override any of the settings and call trap_SetUserinfo
if desired.
============
*/
void ClientUserinfoChanged( int clientNum ) {
	gentity_t *ent;
	int		teamTask, teamLeader, team, health;
	char	*s;
	char	model[MAX_QPATH];
	char	headModel[MAX_QPATH];
	char	oldname[MAX_STRING_CHARS];
	gclient_t	*client;
	char	c1[MAX_INFO_STRING];
	char	c2[MAX_INFO_STRING];
	char	redTeam[MAX_INFO_STRING];
	char	blueTeam[MAX_INFO_STRING];
	char	userinfo[MAX_INFO_STRING];

	ent = g_entities + clientNum;
	client = ent->client;

	trap_GetUserinfo( clientNum, userinfo, sizeof( userinfo ) );

	// check for malformed or illegal info strings
	if ( !Info_Validate(userinfo) ) {
		strcpy (userinfo, "\\name\\badinfo");
	}

	// check for local client
	s = Info_ValueForKey( userinfo, "ip" );
	if ( !strcmp( s, "localhost" ) ) {
		client->pers.localClient = qtrue;
	}

	// check the item prediction
	s = Info_ValueForKey( userinfo, "cg_predictItems" );
	if ( !atoi( s ) ) {
		client->pers.predictItemPickup = qfalse;
	} else {
		client->pers.predictItemPickup = qtrue;
	}

	// set name
	Q_strncpyz ( oldname, client->pers.netname, sizeof( oldname ) );
	s = Info_ValueForKey (userinfo, "name");
	ClientCleanName( s, client->pers.netname, sizeof(client->pers.netname) );

	if ( client->sess.sessionTeam == TEAM_SPECTATOR ) {
		if ( client->sess.spectatorState == SPECTATOR_SCOREBOARD ) {
			Q_strncpyz( client->pers.netname, "scoreboard", sizeof(client->pers.netname) );
		}
	}

	if ( client->pers.connected == CON_CONNECTED ) {
		if ( strcmp( oldname, client->pers.netname ) ) {
			trap_SendServerCommand( -1, va("print \"%s" S_COLOR_WHITE " renamed to %s\n\"", oldname, 
				client->pers.netname) );
		}
	}

	// set max health
#ifdef MISSIONPACK
	if (client->ps.powerups[PW_GUARD]) {
		client->pers.maxHealth = 200;
	} else {
		health = atoi( Info_ValueForKey( userinfo, "handicap" ) );
		client->pers.maxHealth = health;
		if ( client->pers.maxHealth < 1 || client->pers.maxHealth > 100 ) {
			client->pers.maxHealth = 100;
		}
	}
#else
	health = atoi( Info_ValueForKey( userinfo, "handicap" ) );
	client->pers.maxHealth = health;
	if ( client->pers.maxHealth < 1 || client->pers.maxHealth > 100 ) {
		client->pers.maxHealth = 100;
	}
#endif
	client->ps.stats[STAT_MAX_HEALTH] = client->pers.maxHealth;

	// set model
	if( g_gametype.integer >= GT_TEAM ) {
		Q_strncpyz( model, Info_ValueForKey (userinfo, "team_model"), sizeof( model ) );
		Q_strncpyz( headModel, Info_ValueForKey (userinfo, "team_headmodel"), sizeof( headModel ) );
	} else {
		Q_strncpyz( model, Info_ValueForKey (userinfo, "model"), sizeof( model ) );
		Q_strncpyz( headModel, Info_ValueForKey (userinfo, "headmodel"), sizeof( headModel ) );
	}

	// bots set their team a few frames later
	if (g_gametype.integer >= GT_TEAM && g_entities[clientNum].r.svFlags & SVF_BOT) {
		s = Info_ValueForKey( userinfo, "team" );
		if ( !Q_stricmp( s, "red" ) || !Q_stricmp( s, "r" ) ) {
			team = TEAM_RED;
		} else if ( !Q_stricmp( s, "blue" ) || !Q_stricmp( s, "b" ) ) {
			team = TEAM_BLUE;
		} else {
			// pick the team with the least number of players
			team = PickTeam( clientNum );
		}
	}
	else {
		team = client->sess.sessionTeam;
	}

/*	NOTE: all client side now

	// team
	switch( team ) {
	case TEAM_RED:
		ForceClientSkin(client, model, "red");
//		ForceClientSkin(client, headModel, "red");
		break;
	case TEAM_BLUE:
		ForceClientSkin(client, model, "blue");
//		ForceClientSkin(client, headModel, "blue");
		break;
	}
	// don't ever use a default skin in teamplay, it would just waste memory
	// however bots will always join a team but they spawn in as spectator
	if ( g_gametype.integer >= GT_TEAM && team == TEAM_SPECTATOR) {
		ForceClientSkin(client, model, "red");
//		ForceClientSkin(client, headModel, "red");
	}
*/

#ifdef MISSIONPACK
	if (g_gametype.integer >= GT_TEAM) {
		client->pers.teamInfo = qtrue;
	} else {
		s = Info_ValueForKey( userinfo, "teamoverlay" );
		if ( ! *s || atoi( s ) != 0 ) {
			client->pers.teamInfo = qtrue;
		} else {
			client->pers.teamInfo = qfalse;
		}
	}
#else
	// teamInfo
	s = Info_ValueForKey( userinfo, "teamoverlay" );
	if ( ! *s || atoi( s ) != 0 ) {
		client->pers.teamInfo = qtrue;
	} else {
		client->pers.teamInfo = qfalse;
	}
#endif
	/*
	s = Info_ValueForKey( userinfo, "cg_pmove_fixed" );
	if ( !*s || atoi( s ) == 0 ) {
		client->pers.pmoveFixed = qfalse;
	}
	else {
		client->pers.pmoveFixed = qtrue;
	}
	*/

	// team task (0 = none, 1 = offence, 2 = defence)
	teamTask = atoi(Info_ValueForKey(userinfo, "teamtask"));
	// team Leader (1 = leader, 0 is normal player)
	teamLeader = client->sess.teamLeader;

	// colors
	strcpy(c1, Info_ValueForKey( userinfo, "color1" ));
	strcpy(c2, Info_ValueForKey( userinfo, "color2" ));

	strcpy(redTeam, Info_ValueForKey( userinfo, "g_redteam" ));
	strcpy(blueTeam, Info_ValueForKey( userinfo, "g_blueteam" ));

	// send over a subset of the userinfo keys so other clients can
	// print scoreboards, display models, and play custom sounds
	if ( ent->r.svFlags & SVF_BOT ) {
		s = va("n\\%s\\t\\%i\\model\\%s\\hmodel\\%s\\c1\\%s\\c2\\%s\\hc\\%i\\w\\%i\\l\\%i\\skill\\%s\\tt\\%d\\tl\\%d",
			client->pers.netname, team, model, headModel, c1, c2, 
			client->pers.maxHealth, client->sess.wins, client->sess.losses,
			Info_ValueForKey( userinfo, "skill" ), teamTask, teamLeader );
	} else {
		s = va("n\\%s\\t\\%i\\model\\%s\\hmodel\\%s\\g_redteam\\%s\\g_blueteam\\%s\\c1\\%s\\c2\\%s\\hc\\%i\\w\\%i\\l\\%i\\tt\\%d\\tl\\%d",
			client->pers.netname, client->sess.sessionTeam, model, headModel, redTeam, blueTeam, c1, c2, 
			client->pers.maxHealth, client->sess.wins, client->sess.losses, teamTask, teamLeader);
	}

	trap_SetConfigstring( CS_PLAYERS+clientNum, s );

	// this is not the userinfo, more like the configstring actually
	G_LogPrintf( "ClientUserinfoChanged: %i %s\n", clientNum, s );
}


/*
===========
ClientConnect

Called when a player begins connecting to the server.
Called again for every map change or tournement restart.

The session information will be valid after exit.

Return NULL if the client should be allowed, otherwise return
a string with the reason for denial.

Otherwise, the client will be sent the current gamestate
and will eventually get to ClientBegin.

firstTime will be qtrue the very first time a client connects