Useful Functions

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Package-x-generic.png Don't forget to check out the Useful Classes

That page lists user-made classes that are not included by default in MTA.
Contributors: Did you create a page but it's not on this list? Confused? Read: Adding Pages to Categories and Templates

This page lists user-made Lua functions that are not included by default in MTA. Its purpose is to quickly provide some useful functions for scripters, so they do not waste time recreating them when needed.

ACL functions

  • aclGroupClone » This function clone a group to another group with/without ACLs and/or objects.
  • getPlayerAcls » This function returns a table of all ACL groups on a player.
  • isPlayerInACL » This function checks if a player element is in an ACL group.
  • renameAclGroup » This function gives an existing ACL group a new name.

Account functions

  • setAccountName » This function is used to change an existing account's name.

Camera functions

  • smoothMoveCamera » This function allows you to create a cinematic camera flight.

Cursor functions

  • getCursorMoveOn » This function checks in which way the cursor is currently moving.

Drawing functions

Effects functions

  • attachEffect » This function allows you attach an effect to an element.

Elements functions

  • getElementSpeed » This function returns the specified element's speed in m/s, km/h or mph.
  • getElementsInDimension » This function returns a table of elements that are in the specified dimension.
  • getElementsWithinMarker » This function returns a table of elements that are within a marker's collision shape.
  • isElementInPhotograph » This function checks if an element is in the player's camera picture area.
  • isElementInRange » This function allows you to check if an element's range to a main point is within the maximum range.
  • isElementMoving» This function checks if an element is moving.
  • isElementWithinAColShape» This function checks if an element is within a collision shape element.
  • multi_check » This function checks one element to many, handy and clean.
  • setElementSpeed » This function allows you to set the speed of an element in kph or mph units.

Events

  • onVehicleWeaponFire » This code implements an event that is triggered when a player in a vehicle fires a vehicle's weapon.

Input functions

  • bindControlKeys » This function allows you to bind each key bound to a control individually. Doing this bypasses a little MTA restriction.
  • getBoundControls » This function returns a table of control names that are bound to the specified key.
  • unbindControlKeys » This function allows you to unbind each key bound to a control individually. Use this function with bindControlKeys.

Data functions

  • capitalize » This function capitalizes a given string.
  • convertNumber » This function converts and formats large numbers.
  • convertServerTickToTimeStamp » This function converts server ticks to a unix timestamp.
  • convertTextToSpeech » This function converts the provided text to a speech in the provided language which players can hear.
  • findRotation » This function takes two points and returns the direction from point A to point B.
  • FormatDate » This function formats a date on the basis of a format string and returns it.
  • getRealMonthM » This function gives you the real months name
  • getRealMonthH » This function convert english months to arabic months
  • generateString » This function generates a random string with any characters.
  • generateRandomASCIIString » This function returns a random string which uses ASCII characters.
  • getAge » This function calculates the age of a given birthday.
  • getDistanceBetweenPointAndSegment2D » This function takes point coordinates and line (a segment) starting and ending coordinates. It returns the shortest distance between the point and the line.
  • getEasterDate » This function returns easter date monthday and month for a given year.
  • getKeyFromValueInTable » This function returns the key of the specified value in a table.
  • getOffsetFromXYZ » This function allows you to take an entity and a position and calculate the relative offset between them accounting for rotations.
  • getPointFromDistanceRotation » This function finds a point based on a starting point, direction and distance.
  • getRGColorFromPercentage »This function returns two integers representing red and green colors according to the specified percentage.
  • getScreenRotationFromWorldPosition » This function returns a screen relative rotation to a world position.
  • getTimestamp » This function returns the UNIX timestamp of a specified date and time.
  • isLeapYear » This function returns a boolean representing if a given year is a leap year.
  • isValidMail » This function checks whether a provided e-mail string is valid.
  • removeHex » This function is used to remove hex color codes from strings.
  • RGBToHex » This function returns a string representing the color in hexadecimal.
  • toHex » This function converts a decimal number to a hexadecimal number, as a fix to be used client-side.
  • secondsToTimeDesc » This function converts a plain seconds-integer into a user-friendly time description.
  • string.count » This function counts the amount of occurences of a string in a string.
  • string.explode » This function splits a string at a given separator pattern and returns a table with the pieces.
  • switch » This function allows the value of a variable or expression to control the flow of program execution via a multiway branch.
  • var dump » This function outputs information about one or more variables using outputConsole.
  • wavelengthToRGBA » This function converts a physical wavelength of light to a RGBA color.

GUI functions

  • centerWindow » This function centers a CEGUI window element responsively in any resolution.
Comboboxes
Gridlists

Math functions

  • mathNumber » This function is a workaround for the client-side floating-point precision of 24-bits.
  • math.hypot » This function returns the Hypotenuse of the triangle given by sides x and y.
  • math.percent » This function returns a percentage from two number values.
  • math.round » Rounds a number whereas the number of decimals to keep and the method may be set.

Ped functions

  • getAlivePlayers » This function returns a table of the alive players client-side.
  • getAlivePlayersInTeam » This function returns a table of the alive players in a team.
  • getOnlineAdmins » This function returns a table of all logged-in administrators.
  • getPedMaxHealth » This function returns a pedestrians's maximum health by converting it from their maximum health stat.
  • getPedMaxOxygenLevel » This function returns a ped's maximum oxygen level by converting it from their maximum underwater stamina stat.
  • getPlayerFromNamePart » This function returns a player from partial name.
  • getPlayerFromSerial » This function returns a player from their serial.
  • getPlayersInGroup » This function returns all Players In Group .
  • getGuestPlayers » This function gets a players not login or players Guest .
  • getPlayersByData » This function returns a table of players that have the specified data name.
  • getPlayersInPhotograph » This function returns a table of all players in photograph.
  • isPedAiming» This function checks if a pedestrian is aiming their weapon.
  • isPedDrivingVehicle » This function checks if a specified pedestrian is driving a vehicle.
  • isPlayerInTeam » This function checks if a player is in a specified team.
  • isPedAimingNearPed » This is similar to isPedAiming but uses a colshape to be more precise.
  • getPedEyesPosition » This function allows you to get peds eyes position.

Resource functions

Sound functions

Table functions

  • rangeToTable » This function converts a string range to a table containing number values.
  • setTableProtected » This function protects a table and makes it read-only.
  • table.copy » This function copies a whole table and all the tables in that table.
  • table.compare » This function checks whether two given tables are equal.
  • table.empty » This function checks whether a table is empty.
  • table.map » This function goes through a table and replaces every field with the return of the passed function, where the field's value is passed as first argument and optionally more arguments.
  • table.merge » This function merges two or more tables together.
  • table.random » This function retrieves a random value from a table.
  • table.size » This function returns the absolute size of a table.
  • table.removeValue » This function removes a specified value from a table.

Team functions

Vehicle funcions

Weapon functions

XML functions

  • getXMLNodes » This function returns all children of a XML node.

Utility

  • Check » This function checks if its arguments are of the right type and calls the error-function if one is not.
  • coroutine.resume » This function applies a fix for hidden coroutine error messages.
  • callClientFunction » This function allows you to call any client-side function from the server's side.
  • callServerFunction » This function allows you to call any server-side function from the client's side.
  • createAnimation » This function allows you to use interpolateBetween without render event and easily used.
  • getBanFromName » This functions returns the ban of the given playername.
  • getCurrentFPS » This function returns the frames per second at which GTA: SA is running.
  • IfElse » This function returns one of two values based on a boolean expression.
  • isCursorOnElement » This function checks whether the cursor is in a particular area.
  • isMouseInCircle » This function checks if a cursor position is in circular area or not.
  • isMouseInPosition » This function allows you to check whether the mouse cursor/pointer is within a rectangular position.
  • iterElements » This function returns a time-saving iterator for your for-loops.
  • vector3:compare » This method checks whether two vectors match, with optional precision.