/**

  * vim: set ts=4 :

  * =============================================================================

  * SourceMod (C)2004-2008 AlliedModders LLC.  All rights reserved.

  * =============================================================================

  *

  * This file is part of the SourceMod/SourcePawn SDK.

  *

  * This program is free software; you can redistribute it and/or modify it under

  * the terms of the GNU General Public License, version 3.0, as published by the

  * Free Software Foundation.

  * 

  * This program is distributed in the hope that it will be useful, but WITHOUT

  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS

  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more

  * details.

  *

  * You should have received a copy of the GNU General Public License along with

  * this program.  If not, see <http://www.gnu.org/licenses/>.

  *

  * As a special exception, AlliedModders LLC gives you permission to link the

  * code of this program (as well as its derivative works) to "Half-Life 2," the

  * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software

  * by the Valve Corporation.  You must obey the GNU General Public License in

  * all respects for all other code used.  Additionally, AlliedModders LLC grants

  * this exception to all derivative works.  AlliedModders LLC defines further

  * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),

  * or <http://www.sourcemod.net/license.php>.

  *

  * Version: $Id$

  */

 #if defined _clients_included

  #endinput

 #endif

 #define _clients_included

 /**

  * Network flow directions.

  */

 enum NetFlow

 {

 	NetFlow_Outgoing = 0,	/**< Outgoing traffic */

 	NetFlow_Incoming,		/**< Incoming traffic */

 	NetFlow_Both,			/**< Both values added together */

 };

 /**

  * MAXPLAYERS is not the same as MaxClients.

  * MAXPLAYERS is a hardcoded value as an upper limit.  MaxClients changes based on the server.

  *

  * Both GetMaxClients() and MaxClients are only available once the map is loaded, and should 

  * not be used in OnPluginStart().

  */

 #define MAXPLAYERS		64	/**< Maximum number of players SourceMod supports */

 #define MAX_NAME_LENGTH 32	/**< Maximum buffer required to store a client name */

 public const MaxClients;	/**< Maximum number of players the server supports (dynamic) */

 /**

  * Called on client connection.  If you return true, the client will be allowed in the server.

  * If you return false (or return nothing), the client will be rejected.  If the client is 

  * rejected by this forward or any other, OnClientDisconnect will not be called.

  *

  * Note: Do not write to rejectmsg if you plan on returning true.  If multiple plugins write

  * to the string buffer, it is not defined which plugin's string will be shown to the client,

  * but it is guaranteed one of them will.

  *

  * @param client		Client index.

  * @param rejectmsg		Buffer to store the rejection message when the connection is refused.

  * @param maxlen		Maximum number of characters for rejection buffer.

  * @return				True to validate client's connection, false to refuse it.

  */

 forward bool:OnClientConnect(client, String:rejectmsg[], maxlen);

 /**

  * Called once a client successfully connects.  This callback is paired with OnClientDisconnect.

  *

  * @param client		Client index.

  * @noreturn

  */

 forward OnClientConnected(client);

 /**

  * Called when a client is entering the game.

  *

  * Whether a client has a steamid is undefined until OnClientAuthorized

  * is called, which may occur either before or after OnClientPutInServer.

  * Similarly, use OnClientPostAdminCheck() if you need to verify whether 

  * connecting players are admins.

  *

  * GetClientCount() will include clients as they are passed through this 

  * function, as clients are already in game at this point.

  *

  * @param client		Client index.

  * @noreturn

  */

 forward OnClientPutInServer(client);

 /**

  * Called when a client is disconnecting from the server.

  *

  * @param client		Client index.

  * @noreturn

  */

 forward OnClientDisconnect(client);

 /**

  * Called when a client is disconnected from the server.

  *

  * @param client		Client index.

  * @noreturn

  */

 forward OnClientDisconnect_Post(client);

 /**

  * Called when a client is sending a command.

  *

  * As of SourceMod 1.3, the client is guaranteed to be in-game.

  * Use command listeners (console.inc) for more advanced hooks.

  *

  * @param client		Client index.

  * @param args			Number of arguments.

  * @noreturn

  */

 forward Action:OnClientCommand(client, args);

 /**

  * Called whenever the client's settings are changed.

  *

  * @param client		Client index.

  * @noreturn

  */

 forward OnClientSettingsChanged(client);

 /**

  * Called when a client receives a Steam ID.  The state of a client's 

  * authorization as an admin is not guaranteed here.  Use 

  * OnClientPostAdminCheck() if you need a client's admin status.

  *

  * This is called by bots, but the ID will be "BOT".

  *

  * @param client		Client index.

  * @param auth			Client auth string.

  * @noreturn

  */

 forward OnClientAuthorized(client, const String:auth[]);

 /**

  * Called once a client is authorized and fully in-game, but 

  * before admin checks are done.  This can be used to override 

  * the default admin checks for a client.  You should only use 

  * this for overriding; use OnClientPostAdminCheck() instead 

  * if you want notification.

  *

  * Note: If handled/blocked, PostAdminCheck must be signalled 

  * manually via NotifyPostAdminCheck().

  *

  * This callback is gauranteed to occur on all clients, and always 

  * after each OnClientPutInServer() call.

  *

  * @param client		Client index.

  * @return				Plugin_Handled to block admin checks.

  */

 forward Action:OnClientPreAdminCheck(client);

 /**

  * Called directly before OnClientPostAdminCheck() as a method to 

  * alter administrative permissions before plugins perform final 

  * post-connect operations.  

  *

  * In general, do not use this function unless you are specifically 

  * attempting to change access permissions.  Use OnClientPostAdminCheck() 

  * instead if you simply want to perform post-connect authorization 

  * routines.

  *

  * See OnClientPostAdminCheck() for more information.

  *

  * @param client		Client index.

  * @noreturn

  */

 forward OnClientPostAdminFilter(client);

 /**

  * Called once a client is authorized and fully in-game, and 

  * after all post-connection authorizations have been performed.  

  *

  * This callback is gauranteed to occur on all clients, and always 

  * after each OnClientPutInServer() call.

  *

  * @param client		Client index.

  * @noreturn

  */

 forward OnClientPostAdminCheck(client);

 /**

  * This function will be deprecated in a future release.  Use the MaxClients variable instead.

  *

  * Returns the maximum number of clients allowed on the server.  This may 

  * return 0 if called before OnMapStart(), and thus should not be called 

  * in OnPluginStart().  

  *

  * You should not globally cache the value to GetMaxClients() because it can change from 

  * SourceTV or TF2's arena mode.  Use the "MaxClients" dynamic variable documented at the 

  * top of this file.

  *

  * @return				Maximum number of clients allowed.

  */

 native GetMaxClients();

 /**

  * Returns the client count put in the server.

  *

  * @param inGameOnly	If false connecting players are also counted.

  * @return				Client count in the server.

  */

 native GetClientCount(bool:inGameOnly=true);

 /**

  * Returns the client's name.

  *

  * @param client		Player index.

  * @param name			Buffer to store the client's name.

  * @param maxlen		Maximum length of string buffer (includes NULL terminator).

  * @return				True on success, false otherwise.

  * @error				If the client is not connected an error will be thrown.

  */

 native bool:GetClientName(client, String:name[], maxlen);

 /**

  * Retrieves a client's IP address.

  *

  * @param client		Player index.

  * @param name			Buffer to store the client's ip address.

  * @param maxlen		Maximum length of string buffer (includes NULL terminator).

  * @param remport		Remove client's port from the ip string (true by default).

  * @return				True on success, false otherwise.

  * @error				If the client is not connected or the index is invalid.

  */

 native bool:GetClientIP(client, String:ip[], maxlen, bool:remport=true);

 /**

  * Retrieves a client's authentication string (SteamID).

  *

  * @param client		Player index.

  * @param auth			Buffer to store the client's auth string.

  * @param maxlen		Maximum length of string buffer (includes NULL terminator).

  * @return				True on success, false otherwise.

  * @error				If the client is not connected or the index is invalid.

  */

 native bool:GetClientAuthString(client, String:auth[], maxlen);

 /**

  * Retrieves a client's user id, which is an index incremented for every client

  * that joins the server.

  *

  * @param client		Player index.

  * @return				User id of the client.

  * @error 				If the client is not connected or the index is invalid.

  */

 native GetClientUserId(client);

 /**

  * Returns if a certain player is connected.

  *

  * @param client		Player index.

  * @return				True if player is connected to the server, false otherwise.

  */

 native bool:IsClientConnected(client);

 /**

  * Returns if a certain player has entered the game.

  *

  * @param client		Player index (index does not have to be connected).

  * @return				True if player has entered the game, false otherwise.

  * @error				Invalid client index.

  */

 native bool:IsClientInGame(client);

 /**

  * Returns if a client is in the "kick queue" (i.e. the client will be kicked 

  * shortly and thus they should not appear as valid).

  *

  * @param client		Player index (must be connected).

  * @return				True if in the kick queue, false otherwise.

  * @error				Invalid client index.

  */

 native bool:IsClientInKickQueue(client);

 /**

  * Backwards compatibility stock - use IsClientInGame

  * @deprecated			Renamed to IsClientInGame

  */

 #pragma deprecated Use IsClientInGame() instead

 stock bool:IsPlayerInGame(client)

 {

 	return IsClientInGame(client);

 }

 /**

  * Returns if a certain player has been authenticated.

  *

  * @param client		Player index.

  * @return				True if player has been authenticated, false otherwise.

  */

 native bool:IsClientAuthorized(client);

 /**

  * Returns if a certain player is a fake client.

  *

  * @param client		Player index.

  * @return				True if player is a fake client, false otherwise.

  */

 native bool:IsFakeClient(client);

 /**

  * Returns if a certain player is an observer/spectator.

  *

  * @param client		Player index.

  * @return				True if player is an obverser, false otherwise.

  */

 native bool:IsClientObserver(client);

 /**

  * Returns if the client is alive or dead.

  *

  * Note: This function was originally in SDKTools and was moved to core.

  *

  * @param client		Player's index.

  * @return				True if the client is alive, false otherwise.

  * @error				Invalid client index, client not in game, or no mod support.

  */

 native bool:IsPlayerAlive(client);

 /**

  * Retrieves values from client replicated keys.

  *

  * @param client		Player's index.

  * @param key			Key string.

  * @param value			Buffer to store value.

  * @param maxlen		Maximum length of valve (UTF-8 safe).

  * @return 				True on success, false otherwise.

  * @error				Invalid client index, or client not connected.

  */

 native bool:GetClientInfo(client, const String:key[], String:value[], maxlen);

 /**

  * Retrieves a client's team index.

  *

  * @param client		Player's index.

  * @return				Team index the client is on (mod specific).

  * @error				Invalid client index, client not in game, or no mod support.

  */

 native GetClientTeam(client);

 /**

  * Sets a client's AdminId.  

  *

  * @param client		Player's index.

  * @param id			AdminId to set.  INVALID_ADMIN_ID removes admin permissions.

  * @param temp			True if the id should be freed on disconnect.

  * @noreturn

  * @error				Invalid client index, client not connected, or bogus AdminId.

  */

 native SetUserAdmin(client, AdminId:id, bool:temp=false);

 /**

  * Retrieves a client's AdminId.

  *

  * @param client		Player's index.

  * @return				AdminId of the client, or INVALID_ADMIN_ID if none.

  * @error				Invalid client index, or client not connected.

  */

 native AdminId:GetUserAdmin(client);

 /**

  * Sets access flags on a client.  If the client is not an admin,

  * a temporary, anonymous AdminId is given.

  *

  * @param client		Player's index.

  * @param ...			Flags to set on the client.

  * @noreturn

  * @error				Invalid client index, or client not connected.

  */

 native AddUserFlags(client, AdminFlag:...);

 /**

  * Removes flags from a client.  If the client is not an admin,

  * this has no effect.

  *

  * @param client		Player's index.

  * @param ...			Flags to remove from the client.

  * @noreturn

  * @error				Invalid client index, or client not connected.

  */

 native RemoveUserFlags(client, AdminFlag:...);

 /** 

  * Sets access flags on a client using bits instead of flags.  If the

  * client is not an admin, and flags not 0, a temporary, anonymous AdminId is given.

  *

  * @param client		Player's index.

  * @param flags			Bitstring of flags to set on client.

  * @noreturn

  */

 native SetUserFlagBits(client, flags);

 /**

  * Returns client access flags.  If the client is not an admin,

  * the result is always 0.

  * 

  * @param client		Player's index.

  * @return				Flags

  * @error				Invalid client index, or client not connected.

  */

 native GetUserFlagBits(client);

 /**

  * Returns whether a user can target another user.

  * This is a helper function for CanAdminTarget.

  *

  * @param client		Player's index.

  * @param target		Target player's index.

  * @return				True if target is targettable by the player, false otherwise.

  * @error				Invalid or unconnected player indexers.

  */

 native bool:CanUserTarget(client, target);

 /**

  * Runs through the Core-defined admin authorization checks on a player.

  * Has no effect if the player is already an admin.

  *

  * Note: This function is based on the internal cache only.

  *

  * @param client		Client index.

  * @return				True if access was changed, false if it did not.

  * @error				Invalid client index or client not in-game AND authorized.

  */

 native bool:RunAdminCacheChecks(client);

 /**

  * Signals that a player has completed post-connection admin checks.

  * Has no effect if the player has already had this event signalled.

  *

  * Note: This must be sent even if no admin id was assigned.

  *

  * @param client		Client index.

  * @noreturn

  * @error				Invalid client index or client not in-game AND authorized.

  */

 native NotifyPostAdminCheck(client);

 /** 

  * Creates a fake client.

  *

  * @param name			Name to use.

  * @return				Client index on success, 0 otherwise.

  */

 native CreateFakeClient(const String:name[]);

 /**

  * Sets a convar value on a fake client.

  *

  * @param client		Client index.

  * @param cvar			ConVar name.

  * @param value			ConVar value.

  * @noreturn

  * @error				Invalid client index, client not connected,

  *						or client not a fake client.

  */

 native SetFakeClientConVar(client, const String:cvar[], const String:value[]);

 /**

  * Returns the client's health.

  *

  * @param client		Player's index.

  * @return				Health value.

  * @error				Invalid client index, client not in game, or no mod support.

  */

 native GetClientHealth(client);

 /**

  * Returns the client's model name.

  *

  * @param client		Player's index.

  * @param model			Buffer to store the client's model name.

  * @param maxlen		Maximum length of string buffer (includes NULL terminator).

  * @noreturn

  * @error				Invalid client index, client not in game, or no mod support.

  */

 native GetClientModel(client, String:model[], maxlen);

 /**

  * Returns the client's weapon name.

  *

  * @param client		Player's index.

  * @param weapon		Buffer to store the client's weapon name.

  * @param maxlen		Maximum length of string buffer (includes NULL terminator).

  * @noreturn

  * @error				Invalid client index, client not in game, or no mod support.

  */

 native GetClientWeapon(client, String:weapon[], maxlen);

 /**

  * Returns the client's max size vector.

  *

  * @param client		Player's index.

  * @param vec			Destination vector to store the client's max size.

  * @noreturn

  * @error				Invalid client index, client not in game, or no mod support.

  */

 native GetClientMaxs(client, Float:vec[3]);

 /**

  * Returns the client's min size vector.

  *

  * @param client		Player's index.

  * @param vec			Destination vector to store the client's min size.

  * @noreturn

  * @error				Invalid client index, client not in game, or no mod support.

  */

 native GetClientMins(client, Float:vec[3]);

 /**

  * Returns the client's position angle.

  *

  * @param client		Player's index.

  * @param ang			Destination vector to store the client's position angle.

  * @noreturn

  * @error				Invalid client index, client not in game, or no mod support.

  */

 native GetClientAbsAngles(client, Float:ang[3]);

 /**

  * Returns the client's origin vector.

  *

  * @param client		Player's index.

  * @param vec			Destination vector to store the client's origin vector.

  * @noreturn

  * @error				Invalid client index, client not in game, or no mod support.

  */

 native GetClientAbsOrigin(client, Float:vec[3]);

 /**

  * Returns the client's armor.

  *

  * @param client		Player's index.

  * @return				Armor value.

  * @error				Invalid client index, client not in game, or no mod support.

  */

 native GetClientArmor(client);

 /**

  * Returns the client's death count.

  *

  * @param client		Player's index.

  * @return				Death count.

  * @error				Invalid client index, client not in game, or no mod support.

  */

 native GetClientDeaths(client);

 /**

  * Returns the client's frag count.

  *

  * @param client		Player's index.

  * @return				Frag count.

  * @error				Invalid client index, client not in game, or no mod support.

  */

 native GetClientFrags(client);

 /**

  * Returns the client's send data rate in bytes/sec.

  *

  * @param client		Player's index.

  * @return				Data rate.

  * @error				Invalid client index, client not in game, or fake client.

  */

 native GetClientDataRate(client);

 /**

  * Returns if a client is timing out

  *

  * @param client		Player's index.

  * @return				True if client is timing out, false otherwise.

  * @error				Invalid client index, client not in game, or fake client.

  */

 native bool:IsClientTimingOut(client);

 /**

  * Returns the client's connection time in seconds.

  *

  * @param client		Player's index.

  * @return				Connection time.

  * @error				Invalid client index, client not in game, or fake client.

  */

 native Float:GetClientTime(client);

 /**

  * Returns the client's current latency (RTT), more accurate than GetAvgLatency but jittering.

  *

  * @param client		Player's index.

  * @param flow			Traffic flowing direction.

  * @return				Latency, or -1 if network info is not available.

  * @error				Invalid client index, client not in game, or fake client.

  */

 native Float:GetClientLatency(client, NetFlow:flow);

 /**

  * Returns the client's average packet latency in seconds.

  *

  * @param client		Player's index.

  * @param flow			Traffic flowing direction.

  * @return				Latency, or -1 if network info is not available.

  * @error				Invalid client index, client not in game, or fake client.

  */

 native Float:GetClientAvgLatency(client, NetFlow:flow);

 /**

  * Returns the client's average packet loss, values go from 0 to 1 (for percentages).

  *

  * @param client		Player's index.

  * @param flow			Traffic flowing direction.

  * @return				Average packet loss, or -1 if network info is not available.

  * @error				Invalid client index, client not in game, or fake client.

  */

 native Float:GetClientAvgLoss(client, NetFlow:flow);

 /**

  * Returns the client's average packet choke, values go from 0 to 1 (for percentages).

  *

  * @param client		Player's index.

  * @param flow			Traffic flowing direction.

  * @return				Average packet loss, or -1 if network info is not available.

  * @error				Invalid client index, client not in game, or fake client.

  */

 native Float:GetClientAvgChoke(client, NetFlow:flow);

 /**

  * Returns the client's data flow in bytes/sec.

  *

  * @param client		Player's index.

  * @param flow			Traffic flowing direction.

  * @return				Data flow.

  * @error				Invalid client index, client not in game, or fake client.

  */

 native Float:GetClientAvgData(client, NetFlow:flow);

 /**

  * Returns the client's average packet frequency in packets/sec.

  *

  * @param client		Player's index.

  * @param flow			Traffic flowing direction.

  * @return				Packet frequency.

  * @error				Invalid client index, client not in game, or fake client.

  */

 native Float:GetClientAvgPackets(client, NetFlow:flow);

 /**

  * Translates an userid index to the real player index.

  *

  * @param userid		Userid value.

  * @return				Client value.

  * @error				Returns 0 if invalid userid.

  */

 native GetClientOfUserId(userid);

 /**

  * Disconnects a client from the server as soon as the next frame starts.

  *

  * Note: Originally, KickClient() was immediate.  The delay was introduced 

  * because despite warnings, plugins were using it in ways that would crash. 

  * The new safe version can break cases that rely on immediate disconnects, 

  * but ensures that plugins do not accidentally cause crashes.

  *

  * If you need immediate disconnects, use KickClientEx().

  *

  * Note: IsClientInKickQueue() will return true before the kick occurs.

  *

  * @param client		Client index.

  * @param format		Optional formatting rules for disconnect reason.

  *                      Note that a period is automatically appended to the string by the engine.

  * @param ...			Variable number of format parameters.

  * @noreturn

  * @error				Invalid client index, or client not connected.

  */

 native KickClient(client, const String:format[]="", any:...);

 /**

  * Immediately disconnects a client from the server.

  *

  * Kicking clients from certain events or callbacks may cause crashes.  If in 

  * doubt, create a short (0.1 second) timer to kick the client in the next 

  * available frame.

  *

  * @param client		Client index.

  * @param format		Optional formatting rules for disconnect reason.

  *                      Note that a period is automatically appended to the string by the engine.

  * @param ...			Variable number of format parameters.

  * @noreturn

  * @error				Invalid client index, or client not connected.

  */

 native KickClientEx(client, const String:format[]="", any:...);

 /**

  * Changes a client's team through the mod's generic team changing function.

  * On CS:S, this will kill the player.

  *

  * @param client		Client index.

  * @param team			Mod-specific team index.

  * @noreturn

  * @error				Invalid client index, client not connected, or lack of 

  *						mod support.

  */

 native ChangeClientTeam(client, team);

 /**

  * Returns the clients unique serial identifier.

  *

  * @return	Serial number.

  */

 native GetClientSerial(client);

 /**

  * Returns the client index by its serial number.

  *

  * @return				Client index, or 0 for invalid serial.

  */

 native GetClientFromSerial(serial);