Functions & Modules

Functions allow you to group code into a single command that can be used repeatedly. Modules allow you to share that code across different script files.

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Defining Functions (func)

A function is defined using the func keyword. You can pass information into them (parameters) and get information back (return).

lau-compiler.exe

▶ RUN CODE

func calculatePrice(price, amount)
    return price * amount
end

varol order1 = calculatePrice(15, 10)
varol order2 = calculatePrice(20, 20)

print("Total: " + order1)
print("Total: " + order2)

OUTPUT:

Total: 150 Total: 400

Multiple Return Values

Lau functions can return more than one piece of data at the same time.

lau-compiler.exe

▶ RUN CODE

func dronePosition()
    return drone.getPositionX(), drone.getPositionZ()
end

varol hX, hZ = dronePosition()
print("X: " + hX + ", Z: " + hZ)

OUTPUT:

X: 0, Z: 0

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Modules and req()

As your drone script grows, your code will become complex and long. The Module System helps you stay organized by splitting code into multiple files.

File Types

1. .lau (Main Script): The primary script that controls the Drone.
2. .laum (Module): A helper script. It doesn’t run on its own; it must be called by a .lau file.

The Module Rule

Every .laum file MUST return a value (usually a table) at the very end of the script. If you forget the return, the script calling it will crash.

How to use Modules

Step 1: Create a module (math_tools.laum)

varol maths = {}

maths.add = func(a, b)
    return a + b
end

return maths -- Essential!

Step 2: Call it from your main script

varol myTools = req("math_tools.laum")
print(myTools.add(10, 5)) -- Result: 15

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Events & Connections

Events are triggered when something happens in the game (like a player chatting or the weather changing). You use :connect() to tell your script to react.

Method	Description
:connect()	Runs the function every time the event happens.
:once()	Runs the function only the first time the event happens.
:disconnect()	Stops the script from listening to the event.

lau-compiler.exe

▶ RUN CODE

-- This runs every time the player types in chat
player.chatted:connect(func(msg)
    print("Player said: " + msg)
end)

print("[Listening for Chat...]")

OUTPUT:

[Listening for Chat...] Of Course it cant say what i said!! there is no chat on here silly!!