// vim: set ts=4 sw=4 tw=99 noet:
//
// AMX Mod X, based on AMX Mod by Aleksander Naszko ("OLO").
// Copyright (C) The AMX Mod X Development Team.
//
// This software is licensed under the GNU General Public License, version 3 or higher.
// Additional exceptions apply. For full license details, see LICENSE.txt or visit:
// https://alliedmods.net/amxmodx-license
#if defined _cvars_included
#endinput
#endif
#define _cvars_included
/**
* CVAR flags for create_cvar()
*/
#define FCVAR_NONE 0 /* No flags */
#define FCVAR_ARCHIVE 1 /* Set to cause it to be saved to vars.rc */
#define FCVAR_USERINFO 2 /* Changes the client's info string */
#define FCVAR_SERVER 4 /* Notifies players when changed */
#define FCVAR_EXTDLL 8 /* Defined by external DLL */
#define FCVAR_CLIENTDLL 16 /* Defined by the client dll */
#define FCVAR_PROTECTED 32 /* It's a server cvar, but we don't send the data since it's a password, etc. Sends 1 if it's not bland/zero, 0 otherwise as value */
#define FCVAR_SPONLY 64 /* This cvar cannot be changed by clients connected to a multiplayer server. */
#define FCVAR_PRINTABLEONLY 128 /* This cvar's string cannot contain unprintable characters ( e.g., used for player name etc ). */
#define FCVAR_UNLOGGED 256 /* If this is a FCVAR_SERVER, don't log changes to the log file / console if we are creating a log */
#define FCVAR_NOEXTRAWHITEPACE 512 /* Strip trailing/leading white space from this cvar */
/**
* Creates a new cvar for the engine.
*
* @note This has the same effect as register_cvar but provides more options.
* @note For a list of possible cvar flags see FCVAR_* constants above.
* @note If an already existing cvar is registered it will not be duplicated.
* @note The returned cvar pointer should be used with the get_pcvar_* and
* set_pcvar_* set of functions.
*
* @param name Cvar name
* @param string Default cvar value
* @param flags Optional bitsum of flags specifying cvar behavior
* @param description Optional description of the cvar
* @param has_min Optional boolean that specifies if the cvar has a minimum value
* @param min_val Minimum floating point value
* @param has_max Optional boolean that specifies if the cvar has a maximum value
* @param max_val Maximum floating point value
*
* @return Unique cvar pointer
*/
native create_cvar(const name[], const string[], flags = FCVAR_NONE, const description[] = "", bool:has_min = false, Float:min_val = 0.0, bool:has_max = false, Float:max_val = 0.0);
/**
* Registers a new cvar for the engine.
*
* @note Deprecated. Consider to use create_cvar for more options.
* @note For a list of possible cvar flags see FCVAR_* constants in amxconst.inc
* @note If an already existing cvar is registered it will not be duplicated.
* @note The returned cvar pointer should be used with the get_pcvar_* and
* set_pcvar_* set of functions.
*
* @param name Cvar name
* @param string Default cvar value
* @param flags Optional bitsum of flags specifying cvar behavior
* @param fvalue Unused
*
* @return Unique cvar pointer
*/
native register_cvar(const name[], const string[], flags = FCVAR_NONE, Float:fvalue=0.0);
/**
* Returns if a cvar is registered on the server.
*
* @param cvar Cvar name to check
*
* @return 1 if the cvar exists, 0 otherwise
*/
native cvar_exists(const cvar[]);
/**
* Returns the cvar pointer of the specified cvar.
*
* @note A pointer is also returned by register_cvar(). Plugins can (and should)
* retrieve and use pointers for already existing mod cvars.
*
* @param cvar Cvar name to find
*
* @return Cvar pointer on success, 0 if cvar was not found
*/
native get_cvar_pointer(const cvar[]);
/**
* Creates a hook for when a cvar's value is changed.
*
* @note Changing the cvar value from within this forward can lead to infinite
* recursion and should be avoided.
* @note Callback will be called in the following manner:
*
* public cvar_change_callback(pcvar, const old_value[], const new_value[])
*
* pcvar - Pointer to cvar that was changed
* old_value - String containing the value of the cvar before it was changed
* new_value - String containing the new value of the cvar
*
* The return value is ignored
*
* @param pcvar Pointer to cvar
* @param callback Name of callback function
*
* @return Callback handle that can be used with [disable|enable]_cvar_hook
* @error Invalid cvar pointer or invalid callback function
*/
native cvarhook:hook_cvar_change(pcvar, const callback[]);
/**
* Stops a cvar hook forward from triggering.
*
* @note Use the handle returned by hook_cvar_change as the parameter here.
*
* @param handle Forward to stop
* @error Invalid hook handle
*/
native disable_cvar_hook(cvarhook:handle);
/**
* Starts a cvar hook forward back up.
*
* @note Use the handle returned by hook_cvar_change as the parameter here.
*
* @param handle Forward to back up
* @error Invalid hook handle
*/
native enable_cvar_hook(cvarhook:handle);
/**
* Returns flags of a cvar. The cvar is accessed by name.
*
* @note For a list of possible flags see the FCVAR_* constants in amxconst.inc
* @note Accessing a Cvar by name requires this function to walk through the
* engine's cvar list every time, which can result in a considerable waste
* of processing time, especially if many cvars have been registered. For
* a vastly superior alternative look at the get_pcvar_flags function.
*
* @param cvar Cvar name to retrieve flags from
*
* @return 1 on success, 0 if cvar does not exist or is not permitted
*/
native get_cvar_flags(const cvar[]);
/**
* Sets specified flags to a cvar. The cvar is accessed by name.
*
* @note Not permitted for the "amx_version", "amxmodx_version", "fun_version"
* and "sv_cheats" cvars.
* @note For a list of possible flags see the FCVAR_* constants in amxconst.inc
* @note This function just adds the flags using a bitwise-or operation. After
* it has run the flags may not exactly equal the specified bitflag sum.
* @note Accessing a Cvar by name requires this function to walk through the
* engine's cvar list every time, which can result in a considerable waste
* of processing time, especially if many cvars have been registered. For
* a vastly superior alternative look at the set_pcvar_flags function.
*
* @param cvar Cvar name to remove flags from
* @param flags Bitflag sum of flags to set
*
* @return 1 on success, 0 if cvar does not exist or is not permitted
*/
native set_cvar_flags(const cvar[], flags);
/**
* Removes specified flags from a cvar. The cvar is accessed by name.
*
* @note Not permitted for the "amx_version", "amxmodx_version", "fun_version"
* and "sv_cheats" cvars.
* @note For a list of possible flags see the FCVAR_* constants in amxconst.inc
* @note This function removes the flags using a bitwise-and operation.
* @note Accessing a Cvar by name requires this function to walk through the
* engine's cvar list every time, which can result in a considerable waste
* of processing time, especially if many cvars have been registered. For
* a vastly superior alternative look at the set_pcvar_flags function.
*
*
* @param cvar Cvar name to remove flags from
* @param flags Bitflag sum of flags to remove
*
* @return 1 on success, 0 if cvar does not exist or is not permitted
*/
native remove_cvar_flags(const cvar[], flags=-1);
/**
* Gets a string value from a cvar. The cvar is accessed by name.
*
* @note Accessing a Cvar by name requires this function to walk through the
* engine's cvar list every time, which can result in a considerable waste
* of processing time, especially if many cvars have been registered. For
* a vastly superior alternative look at the get_pcvar_string function.
*
* @param cvar Cvar name to retrieve value from
* @param output Buffer to copy cvar value to
* @param iLen Maximum size of the buffer
*
* @return Number of cells written to buffer.
*/
native get_cvar_string(const cvarname[], output[], iLen);
/**
* Sets a cvar to a given string value. The cvar is accessed by name.
*
* @note Accessing a cvar by name requires this function to walk through the
* engine's cvar list every time, which can result in a considerable waste
* of processing time, especially if many cvars have been registered. For
* a vastly superior alternative look at the set_pcvar_string function.
*
* @param cvar Cvar name to set value of
* @param value Value to set cvar to
*
* @noreturn
*/
native set_cvar_string(const cvar[], const value[]);
/**
* Returns a floating value from a cvar. The cvar is accessed by name.
*
* @note Accessing a Cvar by name requires this function to walk through the
* engine's cvar list every time, which can result in a considerable waste
* of processing time, especially if many cvars have been registered. For
* a vastly superior alternative look at the get_pcvar_float function.
*
* @param cvarname Cvar name to retrieve value from
*
* @return Cvar value, converted to float
*/
native Float:get_cvar_float(const cvarname[]);
/**
* Sets a cvar to a given float value. The cvar is accessed by name.
*
* @note Accessing a Cvar by name requires this function to walk through the
* engine's cvar list every time, which can result in a considerable waste
* of processing time, especially if many cvars have been registered. For
* a vastly superior alternative look at the set_pcvar_float function.
*
* @param cvar Cvar name to set value of
* @param value Value to set cvar to
*
* @noreturn
*/
native set_cvar_float(const cvar[], Float:value);
/**
* Returns an integer value from a cvar. The cvar is accessed by name.
*
* @note Accessing a Cvar by name requires this function to walk through the
* engine's cvar list every time, which can result in a considerable waste
* of processing time, especially if many cvars have been registered. For
* a vastly superior alternative look at the get_pcvar_num function.
*
* @param cvarname Cvar name to retrieve value from
*
* @return Cvar value, converted to int
*/
native get_cvar_num(const cvarname[]);
/**
* Sets a cvar to a given integer value. The cvar is accessed by name.
*
* @note Accessing a Cvar by name requires this function to walk through the
* engine's cvar list every time, which can result in a considerable waste
* of processing time, especially if many cvars have been registered. For
* a vastly superior alternative look at the set_pcvar_num function.
*
* @param cvar Cvar name to set value of
* @param value Value to set cvar to
*
* @noreturn
*/
native set_cvar_num(const cvarname[], value);
/**
* Returns flags of a cvar via direct pointer access.
*
* @note For a list of possible flags see the FCVAR_* constants in amxconst.inc
*
* @param pcvar Pointer to cvar to retrieve flags from
*
* @return 1 on success, 0 if cvar pointer is invalid
* @error If an invalid cvar pointer is specified, an error is thrown.
*/
native get_pcvar_flags(pcvar);
/**
* Sets specified flags to a cvar via direct pointer access.
*
* @note For a list of possible flags see the FCVAR_* constants in amxconst.inc
* @note This function directly sets the provided bitflag, unlike set_cvar_flags
* which adds them using a bitwise OR.
*
* @param pcvar Pointer to cvar to set flags of
* @param flags Bitflag sum of flags to set
*
* @return 1 on success, 0 if cvar does not exist or is not permitted
* @error If an invalid cvar pointer is specified, an error is thrown.
*/
native set_pcvar_flags(pcvar, flags);
/**
* Returns an integer value from a cvar via direct pointer access.
*
* @param pcvar Pointer to cvar to retrieve value from
*
* @return Cvar value, converted to int
* @error If an invalid cvar pointer is specified, an error is thrown.
*/
native get_pcvar_num(pcvar);
/**
* Returns an boolean value from a cvar via direct pointer access.
*
* @param pcvar Pointer to cvar to retrieve value from
*
* @return Cvar value, converted to bool
* @error If an invalid cvar pointer is specified, an error is thrown.
*/
native bool:get_pcvar_bool(pcvar);
/**
* Sets an integer value to a cvar via direct pointer access.
*
* @param pcvar Pointer to cvar to set value of
* @param num Value to set cvar to
*
* @noreturn
* @error If an invalid cvar pointer is specified, an error is thrown.
*/
native set_pcvar_num(pcvar, num);
/**
* Sets a boolean value to a cvar via direct pointer access.
*
* @param pcvar Pointer to cvar to set value of
* @param num Value to set cvar to
*
* @noreturn
* @error If an invalid cvar pointer is specified, an error is thrown.
*/
native set_pcvar_bool(pcvar, bool:num);
/**
* Returns a float value from a cvar via direct pointer access.
*
* @param pcvar Pointer to cvar to retrieve value from
*
* @return Cvar value, converted to float
* @error If an invalid cvar pointer is specified, an error is thrown.
*/
native Float:get_pcvar_float(pcvar);
/**
* Sets a float value to a cvar via direct pointer access.
*
* @param pcvar Pointer to cvar to set value of
* @param num Value to set cvar to
*
* @noreturn
* @error If an invalid cvar pointer is specified, an error is thrown.
*/
native set_pcvar_float(pcvar, Float:num);
/**
* Returns a string value from a cvar via direct pointer access.
*
* @param pcvar Pointer to cvar to retrieve value from
* @param string Buffer to copy cvar value to
* @param maxlen Maximum size of the buffer
*
* @return Number of cells written to buffer.
* @error If an invalid cvar pointer is specified, an error is thrown.
*/
native get_pcvar_string(pcvar, string[], maxlen);
/**
* Sets a string value to a cvar via direct pointer access.
*
* @param pcvar Pointer to cvar to retrieve value from
* @param string Value to set cvar to
*
* @noreturn
* @error If an invalid cvar pointer is specified, an error is thrown.
*/
native set_pcvar_string(pcvar, const string[]);
/**
* Cvar bound values used with get/set_pcvar_bounds()
*/
enum CvarBounds
{
CvarBound_Upper = 0,
CvarBound_Lower
};
/**
* Retrieves the specified value bounds of a cvar.
*
* @param pcvar Pointer to cvar
* @param type Type of bound to retrieve, CvarBound_Lower or CvarBound_Upper
* @param value Variable to store the specified bound to
*
* @return True if the cvar has the specified bound set, false otherwise.
* @error If an invalid cvar pointer or CvarBounds value, an error is thrown.
*/
native bool:get_pcvar_bounds(pcvar, CvarBounds:type, &Float:value);
/**
* Sets the specified bounds of a cvar.
*
* @param pcvar Pointer to cvar
* @param type Type of bound to set, CvarBound_Lower or CvarBound_Upper
* @param set If set to true, cvar will use specified bound. If false, bound will be removed
* @param value Floating point value to use as the specified bound
*
* @error If an invalid cvar pointer or CvarBounds value, an error is thrown.
*/
native set_pcvar_bounds(pcvar, CvarBounds:type, bool:set, Float:value = 0.0);
/**
* Binds a cvar's integer value to a global variable. The variable will then
* always contain the current cvar value as it is automatically kept up to date.
*
* @note The variable *has* to be a global or a static variable. Local variables
* created within functions can not be used for technical reasons.
* @note Variables can not be bound to multiple cvars.
*
* @param pcvar Pointer to cvar
* @param var Global variable to keep updated
*
* @error Invalid cvar pointer, invalid provided variable or cvar/variable already binded.
*/
native bind_pcvar_num(pcvar, &any:var);
/**
* Binds a cvar's float value to a global variable. The variable will then
* always contain the current cvar value as it is automatically kept up to date.
*
* @note The variable *has* to be a global or a static variable. Local variables
* created within functions can not be used for technical reasons.
* @note Variables can not be bound to multiple cvars.
*
* @param pcvar Pointer to cvar
* @param var Global variable to keep updated
*
* @error Invalid cvar pointer, invalid provided variable or cvar/variable already binded.
*/
native bind_pcvar_float(pcvar, &Float:var);
/**
* Binds a cvar's string value to a global array. The array will then
* always contain the current cvar value as it is automatically kept up to date.
*
* @note The array *has* to be a global or a static array. Local arrays
* created within functions can not be used for technical reasons.
* @note Arrays can not be bound to multiple cvars.
*
* @param pcvar Pointer to cvar
* @param var Global array to keep updated
* @param varlen Maximum length of string array
*
* @error Invalid cvar pointer, invalid provided variable or cvar/variable already binded.
*/
native bind_pcvar_string(pcvar, any:var[], varlen);
/**
* Returns the number of plugin-registered cvars.
*
* @return Number of registered cvars
*/
native get_plugins_cvarsnum();
/**
* Retrieves information about a plugin-registered cvar.
*
* @note The returned cvar pointer should be used with the get_pcvar_* and
* set_pcvar_* set of functions.
*
* @param num Cvar index, this does not equal the cvar pointer, it is
* the internal index, incremented for each registered cvar
* @param name Buffer to copy cvar name to
* @param namelen Maximum buffer size
* @param flags Variable to store cvar flags to
* @param plugin_id Variable to store id of the registering plugin to
* @param pcvar_handle Variable to store cvar pointer to
* @param description Variable to store cvar description to
* @param desc_len Maximum length of string buffer
*
* @return 1 on success, 0 if index is invalid
*/
native get_plugins_cvar(num, name[], namelen, &flags=0, &plugin_id=0, &pcvar_handle=0, description[]="", desc_len=0);
/**
* Dispatches a client cvar query, allowing the plugin to query for its value on
* the client.
*
* @note The callback will be called in the following manner:
*
* public cvar_query_callback(id, const cvar[], const value[], const param[])
*
* id - Client index
* cvar - Cvar queried
* value - Cvar value on the client
* param - Extra data [optional]
*
* @param id Client index
* @param cvar Cvar to query
* @param resultFunc Callback function
* @param paramlen Size of extra data
* @param params Extra data to pass through to callback
*
* @noreturn
* @error If the client index is not within the range of 1 to
* MaxClients or the client is not connected, an error
* will be thrown.
* If the callback function is invalid, cvar querying is
* unavailable or the querying process runs out of memory,
* an error will be thrown.
*/
native query_client_cvar(id, const cvar[], const resultFunc[], paramlen=0, const params[]="");