game-source/fbxa/bot.qc

/*
======================================
FrikBot X (Version 0.10.1)
======================================

This program is in the Public Domain. My crack legal
team would like to add:

RYAN "FRIKAC" SMITH IS PROVIDING THIS SOFTWARE "AS IS"
AND MAKES NO WARRANTY, EXPRESS OR IMPLIED, AS TO THE
ACCURACY, CAPABILITY, EFFICIENCY, MERCHANTABILITY, OR
FUNCTIONING OF THIS SOFTWARE AND/OR DOCUMENTATION. IN
NO EVENT WILL RYAN "FRIKAC" SMITH BE LIABLE FOR ANY
GENERAL, CONSEQUENTIAL, INDIRECT, INCIDENTAL,
EXEMPLARY, OR SPECIAL DAMAGES, EVEN IF RYAN "FRIKAC"
SMITH HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES, IRRESPECTIVE OF THE CAUSE OF SUCH DAMAGES. 

You accept this software on the condition that you
indemnify and hold harmless Ryan "FrikaC" Smith from
any and all liability or damages to third parties,
including attorney fees, court costs, and other
related costs and expenses, arising out of your use
of this software irrespective of the cause of said
liability. 

The export from the United States or the subsequent
reexport of this software is subject to compliance
with United States export control and munitions
control restrictions. You agree that in the event you
seek to export this software, you assume full
responsibility for obtaining all necessary export
licenses and approvals and for assuring compliance
with applicable reexport restrictions. 

Any reproduction of this software must contain
this notice in its entirety. 

======================================
These installation instructions only apply to Normal Quake (as does this
entire file). For QuakeWorld, please refer to bot_qw.qc

--------------------------------------
To install on a new mod, do all this:
--------------------------------------
Place all included bot*.qc files in the subdirectory "frikbot"
in your source folder, then...

* Add the following lines to progs.src right after the defs.qc line
frikbot/map_dm1.qc
frikbot/map_dm2.qc
frikbot/map_dm3.qc
frikbot/map_dm4.qc
frikbot/map_dm5.qc
frikbot/map_dm6.qc
frikbot/bot.qc
frikbot/bot_way.qc
frikbot/bot_fight.qc 
frikbot/bot_ai.qc
frikbot/bot_misc.qc
frikbot/bot_phys.qc
frikbot/bot_move.qc
frikbot/bot_ed.qc

--------------------------------------
* Comment out the following functions in defs.qc
sound, stuffcmd, sprint, aim, centerprint, setspawnparms
WriteByte, WriteChar, WriteShort, WriteLong, WriteCoord
WriteAngle, WriteString, WriteEntity
--------------------------------------
* Add this to worldspawn() in world.qc, right at the very top, before InitBodyQue();
BotInit();  // FrikBot
--------------------------------------
* add this line to StartFrame() in world.qc, at the very top
BotFrame(); // FrikBot
--------------------------------------
* Add these two lines to PlayerPreThink in client.qc at the very top
if (BotPreFrame()) // FrikBot
	return;
--------------------------------------
* Add this line to PlayerPostThink in client.qc at the very top
if (BotPostFrame()) // FrikBot
	return;
--------------------------------------
* Add the following line to the very top of Client Connect in client.qc
ClientInRankings(); // FrikBot
--------------------------------------
* Add these lines to the very top of ClientDisconnect in client.qc
ClientDisconnected(); // FrikBot
--------------------------------------
*/

void() bot_map_load =
{
	// place your qc loaded waypoints here

	switch (mapname) {
	case "dm1":
		map_dm1 ();
		break;
	case "dm2":
		map_dm2 ();
		break;
	case "dm3":
		map_dm3 ();
		break;
	case "dm4":
		map_dm4 ();
		break;
	case "dm5":
		map_dm5 ();
		break;
	case "dm6":
		map_dm6 ();
	default:
		break;
	}
};

/*
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

Variables and shtuff

bot.qc has become pretty much a header file
for all variable in the bot...

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
*/

// ----- entity fields ---
.float	wallhug, keys, oldkeys, ishuman;
.float	b_frags, b_clientno, b_shirt, b_pants; 
.float	priority, ai_time, b_sound, missile_speed;
.float	portal_time, b_skill, switch_wallhug;
.float	b_aiflags, b_num, b_chattime;
.float	b_menu, b_menu_time, b_menu_value;
.float route_failed, dyn_flags, dyn_time;
.float dyn_plat;
.entity	temp_way, last_way, phys_obj;
.entity	target1, target2, target3, target4;
.entity	_next, _last;
.entity	current_way;
.vector	b_angle, b_dest, mouse_emu, obs_dir;
.vector	movevect, b_dir;
.vector dyn_dest;

// --------defines-----
float SVC_UPDATENAME	= 13;
float SVC_UPDATEFRAGS	= 14;
float SVC_UPDATECOLORS	= 17;

// used for the physics & movement AI
float KEY_MOVEUP 		= 1;
float KEY_MOVEDOWN 	= 2;
float KEY_MOVELEFT 	= 4;
float KEY_MOVERIGHT 	= 8;
float KEY_MOVEFORWARD	= 16;
float KEY_MOVEBACK	= 32;
float KEY_LOOKUP		= 64;
float KEY_LOOKDOWN	= 128;
float KEY_LOOKLEFT	= 256;
float KEY_LOOKRIGHT	= 512;

// these are aiflags for waypoints
// some overlap to the bot
float AI_TELELINK_1	= 1; // link type
float AI_TELELINK_2	= 2; // link type
float AI_TELELINK_3	= 4; // link type
float AI_TELELINK_4	= 8; // link type
float AI_DOORFLAG		= 16; // read ahead
float AI_PRECISION	= 32; // read ahead + point
float AI_SURFACE		= 64; // point 
float AI_BLIND		= 128; // read ahead + point
float AI_JUMP		= 256; // point + ignore
float AI_DIRECTIONAL	= 512; // read ahead + ignore
float AI_PLAT_BOTTOM	= 1024; // read ahead 
float AI_RIDE_TRAIN	= 2048; // read ahead 
float AI_SUPER_JUMP	= 4096; // point + ignore + route test
float AI_SNIPER		= 8192; // point type 
float AI_AMBUSH		= 16384; // point type
float AI_DOOR_NO_OPEN	= 32768; // read ahead
float AI_DIFFICULT	= 65536; // route test
float AI_TRACE_TEST	= 131072; // route test

// these are flags for bots/players (dynamic/editor flags)
float AI_OBSTRUCTED	= 1;
float AI_HOLD_SELECT	= 2;
float AI_ROUTE_FAILED	= 2;
float AI_WAIT		= 4;
float AI_DANGER		= 8;

// addition masks
float AI_POINT_TYPES 	= 29152;
float AI_READAHEAD_TYPES	= 36528;
float AI_IGNORE_TYPES	= 4864;

float WM_UNINIT		= 0;
float WM_DYNAMIC		= 1;
float WM_LOADING		= 2;
float WM_LOADED		= 3;
float WM_EDITOR		= 4;
float WM_EDITOR_DYNAMIC	= 5;
float WM_EDITOR_DYNLINK	= 6;

float OPT_SAVEBOTS	= 1;
float OPT_NOCHAT	= 2;

// -------globals-----
float 	active_clients;
float		max_clients, real_frametime;
float		bot_count, b_options;
float		waypoint_mode, dump_mode; 
float		waypoints, direct_route;
float		sv_friction, sv_gravity;
float		sv_accelerate, sv_maxspeed, sv_stopspeed;
entity	fixer;
entity	route_table;
entity	b_temp1, b_temp2, b_temp3;
entity 	player_head, phys_head, way_head;
float		busy_waypoints;
float		saved_bots, saved_skills1, saved_skills2, current_bots;

// -------ProtoTypes------
// external
void()				ClientConnect;
void()				ClientDisconnect;
void()				SetNewParms;

// rankings
float(float clientno)		ClientBitFlag;
float()				ClientNextAvailable;
void(float whichteam, float whatbot, float whatskill) BotConnect;
void(entity bot)			BotDisconnect;
void(float clientno)		BotInvalidClientNo;
void(entity who)			UpdateClient;

// waypointing
void()				DynamicWaypoint;
entity(vector org)		make_waypoint;
void()				ClearAllWays;
void()				FixWaypoints;
float()				begin_route;
void(entity this, float direct)			bot_get_path;
void()				WaypointThink;
entity(entity start)				FindWayPoint;

// physics & movement
float(entity e)			bot_can_rj;
void()				bot_jump;
void()				frik_bot_roam;
float(vector weird)		frik_walkmove;
void()				frik_movetogoal;
void()				frik_obstacles;
float(float flag)			frik_recognize_plat;
float(vector sdir)		frik_KeysForDir;
void(vector whichway, float danger) frik_obstructed;
void()				SV_Physics_Client;
void()				SV_ClientThink;
void() 				CL_KeyMove;

// ai & misc
string()				PickARandomName;
float(entity targ)		fov;
float(float y1, float y2)	angcomp;
float(entity targ1, entity targ2)		wisible;
float(entity targ)		sisible;
float(entity targ)		fisible;
vector(entity ent)		realorigin;
void(entity ent)			target_drop;
void(entity ent)			target_add;
void()				KickABot;
void()				BotImpulses;
void(entity targ, float success) bot_lost;
string(float r)			BotName;
float(float v)			frik_anglemod;
void() bot_chat;
void(float tpic) bot_start_topic;

// editor stuffs

void()				bot_way_edit;
void()				bot_menu_display;

// ----------Commands---------
void(entity e, float chan, string samp, float vol, float atten) frik_sound = #8;
void(entity client, string s)	frik_stuffcmd = #21;
void(entity client, string s)	frik_sprint = #24;
vector(entity e, float sped)	frik_aim = #44;	
void(entity client, string s)	frik_centerprint = #73;
void(entity e)			frik_setspawnparms = #78;
void(float to, float f)		frik_WriteByte = #52;
void(float to, float f)		frik_WriteChar = #53;
void(float to, float f)		frik_WriteShort = #54;
void(float to, float f)		frik_WriteLong = #55;
void(float to, float f)		frik_WriteCoord = #56;
void(float to, float f)		frik_WriteAngle = #57;
void(float to, string s)	frik_WriteString	= #58;
void(float to, entity s)	frik_WriteEntity	= #59;

void(entity client, string s1, string s2, string s3, string s4, string s5, string s6, string s7)
frik_big_centerprint = #73;

//----------------------------------------------------------------------------

/*
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

Function redclarations. These allow function 
designed to work for clients (sprint, so forth)
to mainly not complain when working with a bot

Although these shouldn't be needed anymore,
as the bots truly are clients now, if you don't
stop the SZ_ buffer from filling up by disabling
direct messages to the bots, it crashes quake :-(

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
*/
void(entity	client, string s) stuffcmd =
{
	if (client.ishuman == 1)
		frik_stuffcmd (client, s);
	b_temp1 = player_head;

	while (b_temp1) {
		if (b_temp1.classname == "botcam") {
			if ((b_temp1.enemy == client) && b_temp1.ishuman)
				frik_stuffcmd (b_temp1, s);
		}
		b_temp1 = b_temp1._next;
	}
};

void(entity	e) setspawnparms =
{
	if (e.ishuman == 1)
		frik_setspawnparms(e);
	else {
		b_temp1 = player_head;
		while (b_temp1) {
			if (b_temp1.ishuman) {
				frik_setspawnparms (b_temp1);
				return;
			}
			b_temp1 = b_temp1._next;
		}
		SetNewParms ();
	}
};
void(entity	client, string s) sprint =
{
	if (client.ishuman == 1)
		frik_sprint (client, s);
	b_temp1 = player_head;

	while (b_temp1) {
		if (b_temp1.classname == "botcam") {
			if ((b_temp1.enemy == client) && b_temp1.ishuman)
				frik_sprint (b_temp1, s);
		}
		b_temp1 = b_temp1._next;
	}

};
void(entity	client, string s) centerprint =
{
	if (client.ishuman == 1)
		frik_centerprint (client, s);
	b_temp1 = player_head;

	while (b_temp1) {
		if (b_temp1.classname == "botcam") {
			if ((b_temp1.enemy == client) && b_temp1.ishuman)
				frik_centerprint (b_temp1, s);
		}
		b_temp1 = b_temp1._next;
	}
};

vector(entity e, float sped) aim =
{
	e.missile_speed = sped;
	return frik_aim (e, sped);
};

void(entity e, float chan, string samp, float vol, float atten) sound = 
{

	frik_sound (e, chan, samp, vol, atten);
	if (samp == "items/inv3.wav")
		return;
	else if (e.classname == "player")
		e.b_sound = time + 1;
	else if (other.classname == "player")
		other.b_sound = time + 1;
};

void(float to, float f) WriteByte =
{
	if ((to == MSG_ONE) && (msg_entity.ishuman != TRUE))
		return;
	frik_WriteByte (to, f);
};

void(float to, float f) WriteChar =		
{
	if ((to == MSG_ONE) && (msg_entity.ishuman != TRUE))
		return;
	frik_WriteChar (to, f);
};

void(float to, float f) WriteShort =	
{
	if ((to == MSG_ONE) && (msg_entity.ishuman != TRUE))
		return;
	frik_WriteShort (to, f);
};

void(float to, float f) WriteLong = 
{
	if ((to == MSG_ONE) && (msg_entity.ishuman != TRUE))
		return;
	frik_WriteLong (to, f);
};

void(float to, float f) WriteCoord = 
{
	if ((to == MSG_ONE) && (msg_entity.ishuman != TRUE))
		return;
	frik_WriteCoord (to, f);
};

void(float to, float f) WriteAngle = 
{
	if ((to == MSG_ONE) && (msg_entity.ishuman != TRUE))
		return;
	frik_WriteAngle (to, f);
};

void(float to, string s) WriteString = 
{
	if ((to == MSG_ONE) && (msg_entity.ishuman != TRUE))
		return;
	frik_WriteString (to, s);
};

void(float to, entity s) WriteEntity = 
{
	if ((to == MSG_ONE) && (msg_entity.ishuman != TRUE))
		return;
	frik_WriteEntity (to, s);
};

/*
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

Bot Cam, see what the bot sees (or any other player)

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
*/
float() botcam =
{
	if (self.classname != "botcam")
		return FALSE;

	setorigin (self, self.enemy.origin);
	self.items = self.enemy.items;
	self.weapon = self.enemy.weapon;
	self.weaponmodel = self.enemy.weaponmodel;
	self.currentammo = self.enemy.currentammo;
	self.weaponframe = self.enemy.weaponframe;
	self.ammo_shells = self.enemy.ammo_shells;
	self.ammo_nails = self.enemy.ammo_nails;
	self.ammo_rockets= self.enemy.ammo_rockets;
	self.ammo_cells = self.enemy.ammo_cells;
	self.view_ofs = self.enemy.view_ofs;
	self.health = self.enemy.health;
	self.armorvalue = self.enemy.armorvalue;
	self.dmg_take = self.enemy.dmg_take;
	self.dmg_save = self.enemy.dmg_save;
	self.dmg_inflictor = self.enemy.dmg_inflictor;
	self.punchangle = self.enemy.punchangle;
	self.deadflag = self.enemy.deadflag;
	msg_entity = self;
	WriteByte (MSG_ONE, 5);
	WriteEntity (MSG_ONE, self.enemy); 
	WriteByte (MSG_ONE, 10);
	WriteAngle (MSG_ONE, self.enemy.v_angle_x);
	WriteAngle (MSG_ONE, self.enemy.v_angle_y);
	WriteAngle (MSG_ONE, self.enemy.v_angle_z);
	self.modelindex = 0;
	
	self.impulse = 0;	
	return TRUE;
};

void() botcam_u = 
{
	// sloppy cycling code
	if (self.classname != "botcam") {
		self.enemy = player_head;
	} else {
		do
			self.enemy = self.enemy._next;
		while (self.enemy.classname == "botcam");
	}
	if (self.enemy == self) {
		do
			self.enemy = self.enemy._next;
		while (self.enemy.classname == "botcam");
	}

	self.classname = "botcam";
	self.solid = SOLID_NOT;
	self.movetype = MOVETYPE_NONE;
	self.takedamage = DAMAGE_NO;

	if (!self.enemy) {
		sprint (self, "No one left to track!\n");
		msg_entity = self;
		WriteByte (MSG_ONE,5);
		WriteEntity (MSG_ONE, self);
		PutClientInServer ();
		return;
	}
	if (!self.enemy.ishuman) {
		self.enemy.dmg_take = 0;
		self.enemy.dmg_save = 0;
	}
	sprint (self, "Now tracking ");
	sprint (self, self.enemy.netname);
	sprint (self, "\n");
};

/*
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

Stuff mentioned up top
it just links the bot into the mod

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
*/

void() ClientFixRankings =
{
	local float cno;

	if (self.switch_wallhug > time)
		return;

	self.switch_wallhug = 0;

	b_temp2 = nextent(NIL);
	cno = 0;

	while (cno < max_clients) {
		if ((!b_temp2.ishuman) && (active_clients & ClientBitFlag(cno)))
			UpdateClient(b_temp2);
		cno = cno + 1;
		b_temp2 = nextent(b_temp2);
	}
};
		
void() ClientInRankings =
{
	local float cno;

	if (player_head)
		player_head._last = self;

	self._next = player_head;
	self._last = NIL;
	player_head = self;

	if (!self.phys_obj) {
		b_temp2 = phys_head;
		while (b_temp2 != NIL && b_temp2.owner != self)
			b_temp2 = b_temp2._next;
		self.phys_obj = b_temp2;
	}

	if (self.ishuman == 2) {
		self.ishuman = FALSE;
		return;
	}
   	cno = self.colormap - 1;
	BotInvalidClientNo (cno);
	active_clients |= ClientBitFlag (cno);
	
	self.b_clientno = cno;
	self.ishuman = TRUE;
	self.switch_wallhug = time + 1;
};

void() ClientDisconnected =
{
	if (player_head == self)
		player_head = self._next;
	if (self._next)
		self._next._last = self._last;
	if (self._last)
		self._last._next = self._next;

	active_clients &= ~(ClientBitFlag (self.b_clientno));
};

/*
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

BotPreFrame & BotPostFrame, used to make the
bot easier to install

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
*/
float () BotPreFrame =
{
	if (self.b_clientno == -1)
		return TRUE;
	if (self.ishuman) {
		if (self.switch_wallhug)
			ClientFixRankings();
		if (self.classname == "botcam")
			return TRUE;
	}
	if (self.b_frags != self.frags) {
		if (self.b_frags > self.frags) {
			if (pointcontents (self.origin) == CONTENT_LAVA)
				bot_start_topic (10);
			else
				bot_start_topic (9);
		} else
			bot_start_topic (2);
		self.b_frags = self.frags;
	}
	DynamicWaypoint ();
	return FALSE;
};

float () BotPostFrame =
{
	if (self.b_clientno == -1)
		return TRUE;
	if (self.ishuman) {

		if (waypoint_mode > WM_LOADED)
			bot_menu_display();

		BotImpulses();

		if (botcam())
			return TRUE;
	}
	return FALSE;
};

/*
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

Bot Chat code

The rest of this code is in bot_misc.qc

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
*/
void(string h) BotSay = // simulate talking by composing a 'chat' message
{
	WriteByte (MSG_ALL, 8);
	WriteByte (MSG_ALL, 1);
	WriteString (MSG_ALL, self.netname);
	WriteByte (MSG_ALL, 8);
	WriteByte (MSG_ALL, 2);
	WriteString (MSG_ALL, h);
};

void() BotSayInit =
{
	WriteByte (MSG_ALL, 8);
	WriteByte (MSG_ALL, 1);
	WriteString (MSG_ALL, self.netname);
};

void(string h) BotSay2 =
{
	WriteByte (MSG_ALL, 8);
	WriteByte (MSG_ALL, 2);
	WriteString (MSG_ALL, h);
};
void(string h) BotSayTeam = 
{
	local entity t;
	if (!teamplay)
		return;
	t = player_head;
	while (t) {
		if (t.team == self.team) {
			msg_entity = t;
			WriteByte (MSG_ONE, 8);
			WriteByte (MSG_ONE, 1);
			WriteByte (MSG_ONE, 40);
			WriteString (MSG_ONE, self.netname);
			WriteByte (MSG_ONE, 8);
			WriteByte (MSG_ONE, 2);
			WriteByte (MSG_ONE, 41);
			WriteString (MSG_ONE, h);
		}
		t = t._next;
	}
};

/*
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

BotInit

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
*/
void() BotInit =
{
	local entity ent, fisent;
	local float numents;
	
	// spawn entities for the physics
	ent = nextent (NIL);
	max_clients = 0;

	while (ent != NIL) {
		max_clients++;
		ent = nextent (ent);
	}
	if (max_clients > 16)
		max_clients = 16;

	ent = nextent (NIL);
	fisent = NIL;
	while (numents < max_clients) {
		phys_head = spawn();
		if (fisent)
			fisent._next = phys_head;
		phys_head._last = fisent;
		fisent = phys_head;
		ent.phys_obj = phys_head;
		phys_head.classname = "phys_obj";
		phys_head.owner = ent;
		numents++;
		ent = nextent (ent);
	}
	precache_model ("progs/s_light.spr");
	precache_model ("progs/s_bubble.spr");
	// the bots return!
	b_options = cvar ("saved1");
	if (coop || (b_options & OPT_SAVEBOTS)) {
		saved_bots = cvar ("scratch1");
		saved_skills1 = cvar ("scratch2");
		saved_skills2 = cvar ("scratch3");
	}
	cvar_set ("saved4", "0");
	if (max_clients > 1) {
		localcmd ("exec maps/");
		localcmd (mapname);
		localcmd (".way\n");
		waypoint_mode = WM_DYNAMIC;
		bot_map_load ();
	} else
		waypoint_mode = WM_LOADED;
};

/*
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

Rankings 'utilities'. Written by Alan Kivlin,
this code just fools clients by sending precisely
the same network messages as when a real player
signs on to the server.

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
*/

void(entity who) UpdateClient =
{
	WriteByte (MSG_ALL, SVC_UPDATENAME);
	WriteByte (MSG_ALL, who.b_clientno);
	WriteString (MSG_ALL, who.netname);
	WriteByte (MSG_ALL, SVC_UPDATECOLORS);
	WriteByte (MSG_ALL, who.b_clientno);
	WriteByte (MSG_ALL, who.b_shirt * 16 + who.b_pants);
	WriteByte (MSG_ALL, SVC_UPDATEFRAGS);
	WriteByte (MSG_ALL, who.b_clientno);
	WriteShort (MSG_ALL, who.frags);
};

float(float clientno) ClientBitFlag =
{
	// bigger, but faster
	switch (clientno) {
	case 0:
		return 1;
	case 1:
		return 2;
	case 2:
		return 4;
	case 3:
		return 8;
	case 4:
		return 16;
	case 5:
		return 32;
	case 6:
		return 64;
	case 7:
		return 128;
	case 8:
		return 256;
	case 9:
		return 512;
	case 10:
		return 1024;
	case 11:
		return 2048;
	case 12:
		return 4096;
	case 13:
		return 8192;
	case 14:
		return 16384;
	case 15:
		return 32768;
	default:
		return 0;
	}
};

float() ClientNextAvailable =
{
	local float clientno;

	clientno = max_clients;
	while (clientno > 0) {
		clientno--;

		if (!(active_clients & ClientBitFlag (clientno)))
			return clientno;
	}

	return -1;
};


void(entity e1, entity e2, float flag) DeveloperLightning =
{
	// used to show waypoint links for debugging
	WriteByte (MSG_BROADCAST, 23);
	if (flag)
		WriteByte (MSG_BROADCAST, 6);
	else
		WriteByte (MSG_BROADCAST, 13);
	WriteEntity (MSG_BROADCAST, e2);
	WriteCoord (MSG_BROADCAST, e1.origin_x);
	WriteCoord (MSG_BROADCAST, e1.origin_y);
	WriteCoord (MSG_BROADCAST, e1.origin_z);
	WriteCoord (MSG_BROADCAST, e2.origin_x);
	WriteCoord (MSG_BROADCAST, e2.origin_y);
	WriteCoord (MSG_BROADCAST, e2.origin_z); 
};

/*
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

Find Another Color

Team finding code

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
*/
float(float tcolor) FindAnotherColor =
{
	local float bestbet, scolor, pcount, bestp;

	bestbet = -1;
	bestp = 16;
	while (scolor < 14) {
		if (scolor != tcolor) {
			b_temp2 = player_head;
			pcount = 0;
			while (b_temp2 != NIL) {
				if (b_temp2.team == scolor + 1)
					pcount++;
				b_temp2 = b_temp2._next;
			}
			if ((pcount < bestp) && pcount) {
				bestbet = scolor;
				bestp = pcount;
			}
		}
		scolor++;
	}
	if (bestbet < 0) {
		bestbet = tcolor;
		while (bestbet == tcolor) {
			bestbet = floor (13 * random ());
		}
	}
	return bestbet;
};

/*
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

BotConnect and related functions.

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
*/				
entity(float num) GetClientEntity =
{
	local entity upsy;
	upsy = NIL;
	num++;
	while (num > 0) {
		num--;
		upsy = nextent (upsy);
	} 
	return upsy;
};

void(float whichteam, float whatbot, float whatskill) BotConnect =
{
	local float f;
	local string h;
	local entity uself;
	
	f = ClientNextAvailable ();
	uself = self;
	if (f == -1) {
		bprint("Unable to connect a bot, server is full.\n");
		return;
	}
	
	// chat thing

	active_clients |= ClientBitFlag (f);
	bot_count++;
	self = GetClientEntity (f);
	if (!saved_bots)
		bot_start_topic (1);
	self.b_clientno = f;
	self.colormap = f + 1;
	if (whatbot)
		self.netname = BotName (whatbot);
	else
		self.netname = PickARandomName ();

	// players can set skill all weird, so leave these checks in
	whatskill = rint(whatskill);
	if (whatskill > 3)
		whatskill = 3;
	else if (whatskill < 0)
		whatskill = 0;
	self.b_skill = whatskill;

	if (teamplay && !coop) {
		if (whichteam)
			self.b_pants = FindAnotherColor (uself.team - 1);
		else
			self.b_pants = uself.team - 1;
		self.b_shirt = self.b_pants;
	}

	self.team = self.b_pants + 1;
	UpdateClient (self);
	SetNewParms ();
	self.ishuman = 2;
	ClientConnect ();
	PutClientInServer ();

	// this is risky... could corrupt .way files if done wrong
	// If you're not the gambling type, comment this out

	f = ClientBitFlag (self.b_num - 1);
	current_bots |= f;

// FIXME: ugh
	if (self.b_num <= 8)
		saved_skills1 = (saved_skills1 & (65536 - (3 * f)) | (self.b_skill * f));
	else {
		f = ClientBitFlag (self.b_num - 9);
		saved_skills2 = (saved_skills2 & (65536 - (3 * f)) | (self.b_skill * f));
	}

	h = ftos (current_bots);
	cvar_set ("scratch1", h);
	h = ftos (saved_skills1);
	cvar_set ("scratch2", h);
	h = ftos (saved_skills2);
	cvar_set ("scratch3", h);
	self = uself;
};

void(entity bot) BotDisconnect =
{
	local string h;
	local entity uself;
	uself = self;
	self = bot;

	bot_count--;
	current_bots &= ~(ClientBitFlag (self.b_num - 1));
	h = ftos (current_bots);
	cvar_set ("scratch1", h);

	ClientDisconnect ();

	if (self.b_clientno != -1) {
      	// the bot's client number is not in use by a real player so we
		// must remove it's entry in the rankings
		// Quake engine sets all fields to 0, can only do the most important here
		self.b_frags = self.frags = 0;
		self.netname = "";
		self.classname = "";
		self.health = 0;
		self.items = 0;
		self.armorvalue = 0;
		self.weaponmodel = "";
		self.b_pants = 0;
		self.b_shirt = 0;
		self.ammo_shells = self.ammo_nails = self.ammo_rockets = self.ammo_cells = 0;
		UpdateClient (self);
		active_clients &= ~(ClientBitFlag (self.b_clientno));
	      self.b_clientno = -1;
   	}
	self = uself;
};

/*
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

BotInvalidClientNo
kicks a bot if a player connects and takes the bot's space

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
*/
void(float clientno) BotInvalidClientNo =
{
	local entity bot;

	bot = GetClientEntity(clientno);
	if (bot.b_clientno > 0) {
		if (!bot.ishuman) {
			bot.b_clientno = -1;
			BotDisconnect (bot);
			active_clients |= ClientBitFlag (self.b_clientno);
			BotConnect (0, bot.b_num, bot.b_skill); 
			return;
		}
	}
};

/*
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

Waypoint Loading from file

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
*/
void() LoadWaypoint = 
{
	local vector org;
	local entity tep;
	local float r;

	org_x = cvar ("saved1");
	org_y = cvar ("saved2");
	org_z = cvar ("saved3");
	
	tep = make_waypoint (org);

	r = cvar ("saved4");

	tep.b_aiflags = floor (r / 4);
	tep.b_pants = cvar ("scratch1");
	tep.b_skill = cvar ("scratch2");
	tep.b_shirt = cvar ("scratch3");
	tep.b_frags = cvar ("scratch4");
};

void() bot_return =
{
	if (time > 2) {
		if ((waypoint_mode == WM_DYNAMIC) || (waypoint_mode == WM_LOADED)) {
			// minor precaution

			if (saved_bots & 1)
				BotConnect (0, 1, saved_skills1 & 3);
			if (saved_bots & 2)
				BotConnect (0, 2, (saved_skills1 & 12) / 4);
			if (saved_bots & 4)
				BotConnect (0, 3, (saved_skills1 & 48) / 16);
			if (saved_bots & 8)
				BotConnect (0, 4, (saved_skills1 & 192) / 64);
			if (saved_bots & 16)
				BotConnect (0, 5, (saved_skills1 & 768) / 256);
			if (saved_bots & 32)
				BotConnect (0, 6, (saved_skills1 & 3072) / 1024);
			if (saved_bots & 64)
				BotConnect (0, 7, (saved_skills1 & 12288) / 4096);
			if (saved_bots & 128)
				BotConnect (0, 8, (saved_skills1 & 49152) / 16384);
			if (saved_bots & 256)
				BotConnect (0, 9, saved_skills2 & 3);
			if (saved_bots & 512)
				BotConnect (0, 10, (saved_skills2 & 12) / 4);
			if (saved_bots & 1024)
				BotConnect (0, 11, (saved_skills2& 48) / 16);
			if (saved_bots & 2048)
				BotConnect (0, 12, (saved_skills2 & 192) / 64);
			if (saved_bots & 4096)
				BotConnect (0, 13, (saved_skills2 & 768) / 256);
			if (saved_bots & 8192)
				BotConnect (0, 14, (saved_skills2 & 3072) / 1024);
			if (saved_bots & 16384)
				BotConnect (0, 15, (saved_skills2 & 12288) / 4096);
			if (saved_bots & 32768)
				BotConnect (0, 16, (saved_skills2 & 49152) / 16384);
			saved_bots = 0;
		}
	}
};

void() WaypointWatch =
{
	// Waypoint Baywatch
	local float bigboobs;
	local string h;

	if (max_clients < 2)
		return;
	if (waypoint_mode != WM_UNINIT) {
		bigboobs = cvar ("saved4");
		if (bigboobs != 0) {
			if ((bigboobs & 3) == 1)
				ClearAllWays();
			else if ((bigboobs & 3) == 3) {
				FixWaypoints ();
				h = ftos (b_options);
				cvar_set ("saved1", h);
				cvar_set ("saved4", "0");
				cvar_set ("scratch1", "0");
				waypoint_mode = WM_LOADED;
				return;
			}
			LoadWaypoint ();
			waypoint_mode = WM_LOADING;
			cvar_set ("saved4", "0");
		}
	}
};

void() BotFrame =
{
	local float num;

	// for the sake of speed
	sv_maxspeed = cvar ("sv_maxspeed");
	sv_gravity = cvar ("sv_gravity");
	sv_friction = cvar ("sv_friction");
	sv_accelerate = cvar ("sv_accelerate");
	sv_stopspeed = cvar ("sv_stopspeed");
	real_frametime = frametime; // in NQ this is alright

	self = nextent (NIL);
	num = 0;
	while (num < max_clients) {
		if (self.ishuman == FALSE) {
			if (active_clients & ClientBitFlag(num)) {
				frik_obstacles ();
				CL_KeyMove ();
				SV_ClientThink ();
				SV_Physics_Client ();
			}
		}
		self = nextent (self);
		num++;
	}
	WaypointWatch ();

	if (saved_bots)
		bot_return ();
};

/*
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

Bot Impulses. Allows the player to perform bot
related functions.

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
*/
void() BotImpulses =
{
	local float f;

	switch (self.impulse) {
	case 100:
		f = cvar ("skill");
		BotConnect (0, 0, f);
		break;
	case 101:
		f = cvar ("skill");
		BotConnect (1, 0, f);
		break;
	case 102:
		KickABot ();
		break;
	case 103:
		botcam_u ();
		break;
	case 104:
		bot_way_edit();
		break;
	default:
		return;
	}
	self.impulse = 0;
};