p_client.c

Quake 2 Source code for students by Theerthan You can also download from idsoftwares.com

	ent->s.skinnum = ent - g_edicts - 1;
	ent->s.modelindex = 255;		// will use the skin specified model
	ent->s.modelindex2 = 255;		// custom gun model
	// sknum is player num and weapon number
	// weapon number will be added in changeweapon
	ent->s.skinnum = ent - g_edicts - 1;

	ent->s.frame = 0;
	VectorCopy (spawn_origin, ent->s.origin);
	ent->s.origin[2] += 1;	// make sure off ground
	VectorCopy (ent->s.origin, ent->s.old_origin);

	// set the delta angle
	for (i=0 ; i<3 ; i++)
		client->ps.pmove.delta_angles[i] = ANGLE2SHORT(spawn_angles[i] - client->resp.cmd_angles[i]);

	ent->s.angles[PITCH] = 0;
	ent->s.angles[YAW] = spawn_angles[YAW];
	ent->s.angles[ROLL] = 0;
	VectorCopy (ent->s.angles, client->ps.viewangles);
	VectorCopy (ent->s.angles, client->v_angle);

//ZOID
	if (CTFStartClient(ent))
		return;
//ZOID

	if (!KillBox (ent))
	{	// could't spawn in?
	}

	gi.linkentity (ent);

	// force the current weapon up
	client->newweapon = client->pers.weapon;
	ChangeWeapon (ent);
}

/*
=====================
ClientBeginDeathmatch

A client has just connected to the server in 
deathmatch mode, so clear everything out before starting them.
=====================
*/
void ClientBeginDeathmatch (edict_t *ent)
{
	G_InitEdict (ent);

	InitClientResp (ent->client);

	// locate ent at a spawn point
	PutClientInServer (ent);

	if (level.intermissiontime)
	{
		MoveClientToIntermission (ent);
	}
	else
	{
		// send effect
		gi.WriteByte (svc_muzzleflash);
		gi.WriteShort (ent-g_edicts);
		gi.WriteByte (MZ_LOGIN);
		gi.multicast (ent->s.origin, MULTICAST_PVS);
	}

	gi.bprintf (PRINT_HIGH, "%s entered the game\n", ent->client->pers.netname);

	// make sure all view stuff is valid
	ClientEndServerFrame (ent);
}


/*
===========
ClientBegin

called when a client has finished connecting, and is ready
to be placed into the game.  This will happen every level load.
============
*/
void ClientBegin (edict_t *ent)
{
	int		i;

	ent->client = game.clients + (ent - g_edicts - 1);

	if (deathmatch->value)
	{
		ClientBeginDeathmatch (ent);
		return;
	}

	// if there is already a body waiting for us (a loadgame), just
	// take it, otherwise spawn one from scratch
	if (ent->inuse == true)
	{
		// the client has cleared the client side viewangles upon
		// connecting to the server, which is different than the
		// state when the game is saved, so we need to compensate
		// with deltaangles
		for (i=0 ; i<3 ; i++)
			ent->client->ps.pmove.delta_angles[i] = ANGLE2SHORT(ent->client->ps.viewangles[i]);
	}
	else
	{
		// a spawn point will completely reinitialize the entity
		// except for the persistant data that was initialized at
		// ClientConnect() time
		G_InitEdict (ent);
		ent->classname = "player";
		InitClientResp (ent->client);
		PutClientInServer (ent);
	}

	if (level.intermissiontime)
	{
		MoveClientToIntermission (ent);
	}
	else
	{
		// send effect if in a multiplayer game
		if (game.maxclients > 1)
		{
			gi.WriteByte (svc_muzzleflash);
			gi.WriteShort (ent-g_edicts);
			gi.WriteByte (MZ_LOGIN);
			gi.multicast (ent->s.origin, MULTICAST_PVS);

			gi.bprintf (PRINT_HIGH, "%s entered the game\n", ent->client->pers.netname);
		}
	}

	// make sure all view stuff is valid
	ClientEndServerFrame (ent);
}

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

called whenever the player updates a userinfo variable.

The game can override any of the settings in place
(forcing skins or names, etc) before copying it off.
============
*/
void ClientUserinfoChanged (edict_t *ent, char *userinfo)
{
	char	*s;
	int		playernum;

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

	// set name
	s = Info_ValueForKey (userinfo, "name");
	strncpy (ent->client->pers.netname, s, sizeof(ent->client->pers.netname)-1);

	// set skin
	s = Info_ValueForKey (userinfo, "skin");

	playernum = ent-g_edicts-1;

	// combine name and skin into a configstring
//ZOID
	if (ctf->value)
		CTFAssignSkin(ent, s);
	else
//ZOID
		gi.configstring (CS_PLAYERSKINS+playernum, va("%s\\%s", ent->client->pers.netname, s) );

//ZOID
	// set player name field (used in id_state view)
	gi.configstring (CS_GENERAL+playernum, ent->client->pers.netname);
//ZOID

	// fov
	if (deathmatch->value && ((int)dmflags->value & DF_FIXED_FOV))
	{
		ent->client->ps.fov = 90;
	}
	else
	{
		ent->client->ps.fov = atoi(Info_ValueForKey(userinfo, "fov"));
		if (ent->client->ps.fov < 1)
			ent->client->ps.fov = 90;
		else if (ent->client->ps.fov > 160)
			ent->client->ps.fov = 160;
	}

	// handedness
	s = Info_ValueForKey (userinfo, "hand");
	if (strlen(s))
	{
		ent->client->pers.hand = atoi(s);
	}

	// save off the userinfo in case we want to check something later
	strncpy (ent->client->pers.userinfo, userinfo, sizeof(ent->client->pers.userinfo)-1);
}


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

Called when a player begins connecting to the server.
The game can refuse entrance to a client by returning false.
If the client is allowed, the connection process will continue
and eventually get to ClientBegin()
Changing levels will NOT cause this to be called again, but
loadgames will.
============
*/
qboolean ClientConnect (edict_t *ent, char *userinfo)
{
	char	*value;

	// check to see if they are on the banned IP list
	value = Info_ValueForKey (userinfo, "ip");
	if (SV_FilterPacket(value)) {
		Info_SetValueForKey(userinfo, "rejmsg", "Banned.");
		return false;
	}


	// check for a password
	value = Info_ValueForKey (userinfo, "password");
	if (*password->string && strcmp(password->string, "none") && 
		strcmp(password->string, value)) {
		Info_SetValueForKey(userinfo, "rejmsg", "Password required or incorrect.");
		return false;
	}

	// they can connect
	ent->client = game.clients + (ent - g_edicts - 1);

	// if there is already a body waiting for us (a loadgame), just
	// take it, otherwise spawn one from scratch
	if (ent->inuse == false)
	{
		// clear the respawning variables
//ZOID -- force team join
		ent->client->resp.ctf_team = -1;
		ent->client->resp.id_state = true; 
//ZOID
		InitClientResp (ent->client);
		if (!game.autosaved || !ent->client->pers.weapon)
			InitClientPersistant (ent->client);
	}

	ClientUserinfoChanged (ent, userinfo);

	if (game.maxclients > 1)
		gi.dprintf ("%s connected\n", ent->client->pers.netname);

	ent->client->pers.connected = true;
	return true;
}

/*
===========
ClientDisconnect

Called when a player drops from the server.
Will not be called between levels.
============
*/
void ClientDisconnect (edict_t *ent)
{
	int		playernum;

	if (!ent->client)
		return;

	gi.bprintf (PRINT_HIGH, "%s disconnected\n", ent->client->pers.netname);

//ZOID
	CTFDeadDropFlag(ent);
	CTFDeadDropTech(ent);
//ZOID

	// send effect
	gi.WriteByte (svc_muzzleflash);
	gi.WriteShort (ent-g_edicts);
	gi.WriteByte (MZ_LOGOUT);
	gi.multicast (ent->s.origin, MULTICAST_PVS);

	gi.unlinkentity (ent);
	ent->s.modelindex = 0;
	ent->solid = SOLID_NOT;
	ent->inuse = false;
	ent->classname = "disconnected";
	ent->client->pers.connected = false;

	playernum = ent-g_edicts-1;
	gi.configstring (CS_PLAYERSKINS+playernum, "");
}


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


edict_t	*pm_passent;

// pmove doesn't need to know about passent and contentmask
trace_t	PM_trace (vec3_t start, vec3_t mins, vec3_t maxs, vec3_t end)
{
	if (pm_passent->health > 0)
		return gi.trace (start, mins, maxs, end, pm_passent, MASK_PLAYERSOLID);
	else
		return gi.trace (start, mins, maxs, end, pm_passent, MASK_DEADSOLID);
}

unsigned CheckBlock (void *b, int c)
{
	int	v,i;
	v = 0;
	for (i=0 ; i<c ; i++)
		v+= ((byte *)b)[i];
	return v;
}
void PrintPmove (pmove_t *pm)
{
	unsigned	c1, c2;

	c1 = CheckBlock (&pm->s, sizeof(pm->s));
	c2 = CheckBlock (&pm->cmd, sizeof(pm->cmd));
	Com_Printf ("sv %3i:%i %i\n", pm->cmd.impulse, c1, c2);
}

/*
==============
ClientThink

This will be called once for each client frame, which will
usually be a couple times for each server frame.
==============
*/
void ClientThink (edict_t *ent, usercmd_t *ucmd)
{
	gclient_t	*client;
	edict_t	*other;
	int		i, j;
	pmove_t	pm;

	level.current_entity = ent;
	client = ent->client;

	if (level.intermissiontime)
	{
		client->ps.pmove.pm_type = PM_FREEZE;
		// can exit intermission after five seconds
		if (level.time > level.intermissiontime + 5.0 
			&& (ucmd->buttons & BUTTON_ANY) )
			level.exitintermission = true;
		return;
	}

	pm_passent = ent;

//ZOID
	if (ent->client->chase_target) {
		client->resp.cmd_angles[0] = SHORT2ANGLE(ucmd->angles[0]);
		client->resp.cmd_angles[1] = SHORT2ANGLE(ucmd->angles[1]);
		client->resp.cmd_angles[2] = SHORT2ANGLE(ucmd->angles[2]);
		return;
	}
//ZOID

	// set up for pmove
	memset (&pm, 0, sizeof(pm));

	if (ent->movetype == MOVETYPE_NOCLIP)
		client->ps.pmove.pm_type = PM_SPECTATOR;
	else if (ent->s.modelindex != 255)
		client->ps.pmove.pm_type = PM_GIB;
	else if (ent->deadflag)
		client->ps.pmove.pm_type = PM_DEAD;
	else
		client->ps.pmove.pm_type = PM_NORMAL;

	client->ps.pmove.gravity = sv_gravity->value;
	pm.s = client->ps.pmove;

	for (i=0 ; i<3 ; i++)
	{
		pm.s.origin[i] = ent->s.origin[i]*8;
		pm.s.velocity[i] = ent->velocity[i]*8;
	}

	if (memcmp(&client->old_pmove, &pm.s, sizeof(pm.s)))
	{
		pm.snapinitial = true;
//		gi.dprintf ("pmove changed!\n");
	}

	pm.cmd = *ucmd;

	pm.trace = PM_trace;	// adds default parms
	pm.pointcontents = gi.pointcontents;

	// perform a pmove
	gi.Pmove (&pm);

	// save results of pmove
	client->ps.pmove = pm.s;
	client->old_pmove = pm.s;

	for (i=0 ; i<3 ; i++)
	{
		ent->s.origin[i] = pm.s.origin[i]*0.125;
		ent->velocity[i] = pm.s.velocity[i]*0.125;
	}

	VectorCopy (pm.mins, ent->mins);
	VectorCopy (pm.maxs, ent->maxs);

	client->resp.cmd_angles[0] = SHORT2ANGLE(ucmd->angles[0]);
	client->resp.cmd_angles[1] = SHORT2ANGLE(ucmd->angles[1]);
	client->resp.cmd_angles[2] = SHORT2ANGLE(ucmd->angles[2]);

	if (ent->groundentity && !pm.groundentity && (pm.cmd.upmove >= 10) && (pm.waterlevel == 0))
	{
		gi.sound(ent, CHAN_VOICE, gi.soundindex("*jump1.wav"), 1, ATTN_NORM, 0);
		PlayerNoise(ent, ent->s.origin, PNOISE_SELF);
	}

	ent->viewheight = pm.viewheight;
	ent->waterlevel = pm.waterlevel;
	ent->watertype = pm.watertype;
	ent->groundentity = pm.groundentity;
	if (pm.groundentity)
		ent->groundentity_linkcount = pm.groundentity->linkcount;

	if (ent->deadflag)
	{
		client->ps.viewangles[ROLL] = 40;
		client->ps.viewangles[PITCH] = -15;
		client->ps.viewangles[YAW] = client->killer_yaw;
	}
	else
	{
		VectorCopy (pm.viewangles, client->v_angle);
		VectorCopy (pm.viewangles, client->ps.viewangles);
	}

//ZOID
	if (client->ctf_grapple)
		CTFGrapplePull(client->ctf_grapple);
//ZOID

	gi.linkentity (ent);

	if (ent->movetype != MOVETYPE_NOCLIP)
		G_TouchTriggers (ent);

	// touch other objects
	for (i=0 ; i<pm.numtouch ; i++)
	{
		other = pm.touchents[i];
		for (j=0 ; j<i ; j++)
			if (pm.touchents[j] == other)
				break;
		if (j != i)
			continue;	// duplicated
		if (!other->touch)
			continue;
		other->touch (other, ent, NULL, NULL);
	}


	client->oldbuttons = client->buttons;
	client->buttons = ucmd->buttons;
	client->latched_buttons |= client->buttons & ~client->oldbuttons;

	// save light level the player is standing on for
	// monster sighting AI
	ent->light_level = ucmd->lightlevel;

	// fire weapon from final position if needed
	if (client->latched_buttons & BUTTON_ATTACK
//ZOID
		&& ent->movetype != MOVETYPE_NOCLIP
//ZOID
		)
	{
		if (!client->weapon_thunk)
		{
			client->weapon_thunk = true;
			Think_Weapon (ent);
		}
	}

//ZOID
//regen tech
	CTFApplyRegeneration(ent);
//ZOID

//ZOID
	for (i = 1; i <= maxclients->value; i++) {
		other = g_edicts + i;
		if (other->inuse && other->client->chase_target == ent)
			UpdateChaseCam(other);
	}

	if (client->menudirty && client->menutime <= level.time) {
		PMenu_Do_Update(ent);
		gi.unicast (ent, true);
		client->menutime = level.time;
		client->menudirty = false;
	}
//ZOID
}


/*
==============
ClientBeginServerFrame

This will be called once for each server frame, before running
any other entities in the world.
==============
*/
void ClientBeginServerFrame (edict_t *ent)
{
	gclient_t	*client;
	int			buttonMask;

	if (level.intermissiontime)
		return;

	client = ent->client;

	// run weapon animations if it hasn't been done by a ucmd_t
	if (!client->weapon_thunk
//ZOID
		&& ent->movetype != MOVETYPE_NOCLIP
//ZOID
		)
		Think_Weapon (ent);
	else
		client->weapon_thunk = false;

	if (ent->deadflag)
	{
		// wait for any button just going down
		if ( level.time > client->respawn_time)
		{
			// in deathmatch, only wait for attack button
			if (deathmatch->value)
				buttonMask = BUTTON_ATTACK;
			else
				buttonMask = -1;

			if ( ( client->latched_buttons & buttonMask ) ||
				(deathmatch->value && ((int)dmflags->value & DF_FORCE_RESPAWN) ) ||
				CTFMatchOn())
			{
				respawn(ent);
				client->latched_buttons = 0;
			}
		}
		return;
	}

	// add player trail so monsters can follow
	if (!deathmatch->value)
		if (!visible (ent, PlayerTrail_LastSpot() ) )
			PlayerTrail_Add (ent->s.old_origin);

	client->latched_buttons = 0;
}