/**

 * 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 _halflife_included

 #endinput

#endif

#define _halflife_included

#define SOURCE_SDK_UNKNOWN			0		/**< Could not determine the engine version */

#define SOURCE_SDK_ORIGINAL			10		/**< Original Source engine (still used by "The Ship") */

#define SOURCE_SDK_DARKMESSIAH		15		/**< Modified version of original engine used by Dark Messiah (no SDK) */

#define SOURCE_SDK_EPISODE1			20		/**< SDK+Engine released after Episode 1 */

#define SOURCE_SDK_EPISODE2			30		/**< SDK+Engine released after Episode 2/Orange Box */

#define SOURCE_SDK_EPISODE2VALVE	35		/**< SDK+Engine released after Episode 2/Orange Box */

#define SOURCE_SDK_LEFT4DEAD		40		/**< Engine released after Left 4 Dead (no SDK yet) */

#define SOURCE_SDK_LEFT4DEAD2		50		/**< Engine released after Left 4 Dead 2 (no SDK yet) */

#define MOTDPANEL_TYPE_TEXT		0	/**< Treat msg as plain text */

#define MOTDPANEL_TYPE_INDEX	1	/**< Msg is auto determined by the engine */

#define MOTDPANEL_TYPE_URL		2	/**< Treat msg as an URL link */

#define MOTDPANEL_TYPE_FILE		3	/**< Treat msg as a filename to be openned */

enum DialogType

{

	DialogType_Msg = 0,		/**< just an on screen message */

	DialogType_Menu, 		/**< an options menu */

	DialogType_Text, 		/**< a richtext dialog */

	DialogType_Entry, 		/**< an entry box */

	DialogType_AskConnect	/**< ask the client to connect to a specified IP */

};

#define INVALID_ENT_REFERENCE 0xFFFFFFFF

/**

 * Logs a generic message to the HL2 logs.

 *

 * @param format		String format.

 * @param ...			Format arguments.

 * @noreturn

 */

native LogToGame(const String:format[], any:...);

/**

 * Sets the seed value for the global Half-Life 2 Random Stream.

 *

 * @param seed			Seed value.

 * @noreturn	

 */

native SetRandomSeed(seed);

/**

 * Returns a random floating point number from the Half-Life 2 Random Stream.

 *

 * @param fMin			Minimum random bound.

 * @param fMax			Maximum random bound.

 * @return				A random number between (inclusive) fMin and fMax.

 */

native Float:GetRandomFloat(Float:fMin=0.0, Float:fMax=1.0);

/**

 * Returns a random number from the Half-Life 2 Random Stream.

 *

 * @param nmin			Minimum random bound.

 * @param nmax			Maximum random bound.

 * @return				A random number between (inclusive) nmin and nmax.

 */

native GetRandomInt(nmin, nmax);

/**

 * Returns whether a map is valid or not.

 * 

 * @param 				Map name, excluding .bsp extension.

 * @return				True if valid, false otherwise.

 */

native bool:IsMapValid(const String:map[]);

/**

 * Returns whether the server is dedicated.

 *

 * @return				True if dedicated, false otherwise.

 */

native bool:IsDedicatedServer();

/**

 * Returns a high-precision time value for profiling the engine.

 *

 * @return				A floating point time value.

 */

native Float:GetEngineTime();

/** 

 * Returns the game time based on the game tick.

 *

 * @return				Game tick time.

 */

native Float:GetGameTime();

/**

 * Returns the game description from the mod.

 *

 * @param buffer		Buffer to store the description.

 * @param maxlength		Maximum size of the buffer.

 * @param original		If true, retrieves the original game description,

 *						ignoring any potential hooks from plugins.

 * @return				Number of bytes written to the buffer (UTF-8 safe).

 */

native GetGameDescription(String:buffer[], maxlength, bool:original=false);

/**

 * Returns the name of the game's directory.

 *

 * @param buffer		Buffer to store the directory name.

 * @param maxlength		Maximum size of the buffer.

 *

 * return				Number of bytes written to the buffer (UTF-8 safe).

 */

native GetGameFolderName(String:buffer[], maxlength);

/**

 * Returns the current map name.

 *

 * @param buffer		Buffer to store map name.

 * @param maxlength		Maximum length of buffer.

 * @return				Number of bytes written (UTF-8 safe).

 */

native GetCurrentMap(String:buffer[], maxlength);

/**

 * Precaches a given model.

 *

 * @param model			Name of the model to precache.

 * @param preload		If preload is true the file will be precached before level startup.

 * @return				Returns the model index, 0 for error.

 */

native PrecacheModel(const String:model[], bool:preload=false);

/**

 * Precaches a given sentence file.

 *

 * @param file			Name of the sentence file to precache.

 * @param preload		If preload is true the file will be precached before level startup.

 * @return				Returns a sentence file index.

 */

native PrecacheSentenceFile(const String:file[], bool:preload=false);

/**

 * Precaches a given decal.

 *

 * @param decal			Name of the decal to precache.

 * @param preload		If preload is true the file will be precached before level startup.

 * @return				Returns a decal index.

 */

native PrecacheDecal(const String:decal[], bool:preload=false);

/**

 * Precaches a given generic file.

 *

 * @param generic		Name of the generic file to precache.

 * @param preload		If preload is true the file will be precached before level startup.

 * @return				Returns a generic file index.

 */

native PrecacheGeneric(const String:generic[], bool:preload=false);

/**

 * Returns if a given model is precached.

 *

 * @param model			Name of the model to check.

 * @return				True if precached, false otherwise.

 */

native bool:IsModelPrecached(const String:model[]);

/**

 * Returns if a given decal is precached.

 *

 * @param decal			Name of the decal to check.

 * @return				True if precached, false otherwise.

 */

native bool:IsDecalPrecached(const String:decal[]);

/**

 * Returns if a given generic file is precached.

 *

 * @param decal			Name of the generic file to check.

 * @return				True if precached, false otherwise.

 */

native bool:IsGenericPrecached(const String:generic[]);

/**

 * Precaches a given sound.

 *

 * @param sound			Name of the sound to precache.

 * @param preload		If preload is true the file will be precached before level startup.

 * @return				True if successfully precached, false otherwise.

 */

native bool:PrecacheSound(const String:sound[], bool:preload=false);

/**

 * Returns if a given sound is precached.

 *

 * @param sound			Name of the sound to check.

 * @return				True if precached, false otherwise.

 */

native bool:IsSoundPrecached(const String:sound[]);

/**

 * Creates different types of ingame messages.

 *

 * @param client		Index of the client.

 * @param kv			KeyValues handle to set the menu keys and options. (Check iserverplugin.h for more information).

 * @param type			Message type to display ingame.

 * @noreturn

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

 */

native CreateDialog(client, Handle:kv, DialogType:type);

/**

 * Guesses the SDK version a mod was compiled against.  If nothing 

 * specific is known about the game, the engine version is used instead.

 *

 * The return values are guaranteed to increase chronologically (that is, 

 * a later release will have a higher value).

 *

 * @return				SOURCE_SDK version code.

 */

native GuessSDKVersion();

/**

 * Prints a message to a specific client in the chat area.

 *

 * @param client		Client index.

 * @param format		Formatting rules.

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

 * @noreturn

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

 */

native PrintToChat(client, const String:format[], any:...);

/**

 * Prints a message to all clients in the chat area.

 *

 * @param format		Formatting rules.

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

 * @noreturn

 */

stock PrintToChatAll(const String:format[], any:...)

{

	decl String:buffer[192];

	for (new i = 1; i <= MaxClients; i++)

	{

		if (IsClientInGame(i))

		{

			SetGlobalTransTarget(i);

			VFormat(buffer, sizeof(buffer), format, 2);

			PrintToChat(i, "%s", buffer);

		}

	}

}

/**

 * Prints a message to a specific client in the center of the screen.

 *

 * @param client		Client index.

 * @param format		Formatting rules.

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

 * @noreturn

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

 */

native PrintCenterText(client, const String:format[], any:...);

/**

 * Prints a message to all clients in the center of the screen.

 *

 * @param format		Formatting rules.

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

 * @noreturn

 */

stock PrintCenterTextAll(const String:format[], any:...)

{

	decl String:buffer[192];

	for (new i = 1; i <= MaxClients; i++)

	{

		if (IsClientInGame(i))

		{

			SetGlobalTransTarget(i);

			VFormat(buffer, sizeof(buffer), format, 2);

			PrintCenterText(i, "%s", buffer);

		}

	}

}

/**

 * Prints a message to a specific client with a hint box.

 *

 * @param client		Client index.

 * @param format		Formatting rules.

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

 * @noreturn

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

 */

native PrintHintText(client, const String:format[], any:...);

/**

 * Prints a message to all clients with a hint box.

 *

 * @param format		Formatting rules.

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

 * @noreturn

 */

stock PrintHintTextToAll(const String:format[], any:...)

{

	decl String:buffer[192];

	for (new i = 1; i <= MaxClients; i++)

	{

		if (IsClientInGame(i))

		{

			SetGlobalTransTarget(i);

			VFormat(buffer, sizeof(buffer), format, 2);

			PrintHintText(i, "%s", buffer);

		}

	}

}

/**

 * Shows a VGUI panel to a specific client.

 *

 * @param client		Client index.

 * @param name			Panel type name (Check viewport_panel_names.h to see a list of 

 *						some panel names).

 * @param Kv			KeyValues handle with all the data for the panel setup (Depends 

 *						on the panel type and may be unused).

 * @param show			True to show the panel, or false to remove it from the client screen.

 * @noreturn

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

 */

native ShowVGUIPanel(client, const String:name[], Handle:Kv=INVALID_HANDLE, bool:show=true);

/**

 * Creates a HUD synchronization object.  This object is used to automatically assign and 

 * re-use channels for a set of messages.  

 *

 * The HUD has a hardcoded number of channels (usually 6) for displaying 

 * text.  You can use any channel for any area of the screen.  Text on 

 * different channels can overlap, but text on the same channel will 

 * erase the old text first.  This overlapping and overwriting gets problematic.

 *

 * A HUD synchronization object automatically selects channels for you based on 

 * the following heuristics:

 *  - If channel X was last used by the object, and hasn't been modified again, 

 *    channel X gets re-used.

 *  - Otherwise, a new channel is chosen based on the least-recently-used channel.

 *

 * This ensures that if you display text on a sync object, that the previous text 

 * displayed on it will always be cleared first.  This is because your new text 

 * will either overwrite the old text on the same channel, or because another 

 * channel has already erased your text.

 *

 * Note that messages can still overlap if they are on different synchronization 

 * objects, or they are displayed to manual channels.

 *

 * These are particularly useful for displaying repeating or refreshing HUD text, in 

 * addition to displaying multiple message sets in one area of the screen (for example, 

 * center-say messages that may pop up randomly that you don't want to overlap each 

 * other).

 *

 * @return				New HUD synchronization object.

 *						The Handle can be closed with CloseHandle().

 *						If HUD text is not supported on this mod, then 

 *						INVALID_HANDLE is returned.

 */

native Handle:CreateHudSynchronizer();

/**

 * Sets the HUD parameters for drawing text.  These parameters are stored 

 * globally, although nothing other than this function and SetHudTextParamsEx 

 * modify them.

 *

 * You must call this function before drawing text.  If you are drawing 

 * text to multiple clients, you can set the parameters once, since 

 * they won't be modified.  However, as soon as you pass control back 

 * to other plugins, you must reset the parameters next time you draw.

 *

 * @param x				x coordinate, from 0 to 1.  -1.0 is the center.

 * @param y				y coordinate, from 0 to 1.  -1.0 is the center.

 * @param holdTime		Number of seconds to hold the text.

 * @param r				Red color value.

 * @param g				Green color value.

 * @param b				Blue color value.

 * @param a				Alpha transparency value.

 * @param effect 		0/1 causes the text to fade in and fade out.

 *						2 causes the text to flash[?].

 * @param fxTime		Duration of chosen effect (may not apply to all effects).

 * @param fadeIn		Number of seconds to spend fading in.

 * @param fadeOut		Number of seconds to spend fading out.

 * @noreturn

 */

native SetHudTextParams(Float:x, Float:y, Float:holdTime, r, g, b, a, effect = 0,

						Float:fxTime=6.0, Float:fadeIn=0.1, Float:fadeOut=0.2);

/**

 * Sets the HUD parameters for drawing text.  These parameters are stored 

 * globally, although nothing other than this function and SetHudTextParams

 * modify them.

 *

 * This is the same as SetHudTextParams(), except it lets you set the alternate 

 * color for when effects require it.  

 *

 * @param x				x coordinate, from 0 to 1.  -1.0 is the center.

 * @param y				y coordinate, from 0 to 1.  -1.0 is the center.

 * @param holdTime		Number of seconds to hold the text.

 * @param color1		First color set, array values being [red, green, blue, alpha]

 * @param color2		Second color set, array values being [red, green, blue, alpha]

 * @param effect 		0/1 causes the text to fade in and fade out.

 *						2 causes the text to flash[?].

 * @param fxTime		Duration of chosen effect (may not apply to all effects).

 * @param fadeIn		Number of seconds to spend fading in.

 * @param fadeOut		Number of seconds to spend fading out.

 * @noreturn

 */

native SetHudTextParamsEx(Float:x, Float:y, Float:holdTime, color1[4], 

						  color2[4]={255,255,255,0}, effect = 0, Float:fxTime=6.0, 

						  Float:fadeIn=0.1, Float:fadeOut=0.2);

/**

 * Shows a synchronized HUD message to a client.  

 *

 * As of this writing, only TF, HL2MP, and SourceForts support HUD Text.

 *

 * @param client		Client index to send the message to.

 * @param sync			Synchronization object.

 * @param message		Message text or formatting rules.

 * @param ...			Message formatting parameters.

 * @return				-1 on failure, anything else on success.

 *						This function fails if the mod does not support it.

 * @error				Client not in-game, or sync object not valid.

 */

native ShowSyncHudText(client, Handle:sync, const String:message[], any:...);

/**

 * Clears the text on a synchronized HUD channel. 

 *

 * This is not the same as sending "" because it guarantees that it won't 

 * overwrite text on another channel.  For example, consider the scenario: 

 *

 * 1. Your synchronized message goes to channel 3.

 * 2. Someone else's non-synchronized message goes to channel 3.

 *

 * If you were to simply send "" on your synchronized message, 

 * then someone else's text could be overwritten.

 *

 * @param client		Client index to send the message to.

 * @param sync			Synchronization object.

 * @noreturn

 * @error				Client not in-game, or sync object not valid.

 */

native ClearSyncHud(client, Handle:sync);

/**

 * Shows a HUD message to a client on the given channel.

 *

 * As of this writing, only TF, HL2MP, and SourceForts support HUD Text.

 * 

 * @param client		Client index to send the message to.

 * @param channel		A channel number.

 *						If -1, then a channel will automatically be selected 

 *						based on the least-recently-used channel.  If the 

 *						channel is any other number, it will be modulo'd with 

 *						the channel count to get a final channel number.

 * @param message		Message text or formatting rules.

 * @param ...			Message formatting parameters.

 * @return				-1 on failure (lack of mod support).

 *						Any other return value is the channel number that was 

 *						used to render the text.

 */

native ShowHudText(client, channel, const String:message[], any:...);

/**

 * Shows a MOTD panel to a specific client.

 *

 * @param client		Client index.

 * @param title			Title of the panel (printed on the top border of the window).

 * @param msg			Contents of the panel, it can be treated as an url, filename or plain text

 *				 		depending on the type parameter (WARNING: msg has to be 192 bytes maximum!)

 * @param type			Determines the way to treat the message body of the panel.

 * @noreturn

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

 */

stock ShowMOTDPanel(client, const String:title[], const String:msg[], type=MOTDPANEL_TYPE_INDEX)

{

	decl String:num[3];

	new Handle:Kv = CreateKeyValues("data");

	IntToString(type, num, sizeof(num));

	KvSetString(Kv, "title", title);

	KvSetString(Kv, "type", num);

	KvSetString(Kv, "msg", msg);

	ShowVGUIPanel(client, "info", Kv);

	CloseHandle(Kv);

}

/**

 * Displays a panel asking the client to connect to a specified IP.

 *

 * @param client		Client index.

 * @param time			Duration to hold the panel on the client's screen.

 * @param ip			Destionation IP.

 * @noreturn

 */

stock DisplayAskConnectBox(client, Float:time, const String:ip[])

{

	new Handle:Kv = CreateKeyValues("data");

	KvSetFloat(Kv, "time", time);

	KvSetString(Kv, "title", ip);

	CreateDialog(client, Kv, DialogType_AskConnect);

	CloseHandle(Kv);

}

/**

 * Converts an entity index into a serial encoded entity reference.

 *

 * @param entity		Entity index.

 * @return				Entity reference.

 */

native EntIndexToEntRef(entity);

/**

 * Retrieves the entity index from a reference.

 *

 * @param ref			Entity reference.

 * @return				Entity index.

 */

native EntRefToEntIndex(ref);

/**

 * Converts a reference into a backwards compatible version.

 *

 * @param ref			Entity reference.

 * @return				Bcompat reference.

 */

native MakeCompatEntRef(ref);