Luau (programming language)

Luau

Family	Lua (programming language)
Developer	Roblox Corporation
First appeared	27 August 2019
Implementation language	C++, Lua
Platform	Roblox Studio
OS	Windows, MacOS
License	MIT License
File formats	.rbxm
Website	https://luau-lang.org

Luau is a dialect of the programming language Lua developed by Roblox Corporation for use in Roblox Studio to create games on Roblox. A derivative of Lua 5.1, Luau supports gradual typing and is designed to maximize performance.Template:Psi inline

Examples

Template:Unencyclopedic section Instances refers to objects in the game and some of them can be parented and some have a "child".

Part spawns in constant code

Here's an example code for spawning a "Part" (Roblox Block instance, shown here as "brick") every 10 second. Spawning in the position 0, 0, 0. "game" refers to the game itself. "Workspace" is where the player can interact, a 3D environment. "CFrame" is used as the position of "brick".

while wait(10) do
    local brick = instance.new("Part")
    brick.parent = game.Workspace
    brick.position = CFrame.new(0, 0, 0)
end

Note that "Workspace" is a child of "game". This script is a "Script" instance and it's placed in "ServerScriptService", a parent of "game".

Function codes

Another example is to use custom functions and instance's "Signal". If the instance has triggered a change, the signal will be fired. In this example, instance "Button" has a "ClickDetector" which fires the signal "MouseClick" whenever "Button" is pressed. "Connect(<Name Of The Function To Run>) is to run the function in the parenthesis whenever the Signal is fired. This time we are going to run a custom function called "onClicked()" and it will change "Button's" colour and material.

Button = script.parent

function onClicked()
button.BrickColor = BrickColor.new("Medium Stone Grey")
button.Material = Enum.Material.DiamondPlate
end

Button.ClickDetector.MouseClick:Connect(onClicked)

Adding comments

See the code block below to see the example of comments.

--See here for the use of comments 

--This is an example comment
--[[This is an example of Multi-line comment
hello world,
This is a Wikipedia edit.]]