Functions

Declaring a function works with the fn keyword. Functions are local by default.

fn Greet(name) {
  Pewpew:Print("Hello" .. name .. "!")
}

Greet("John") // -> Hello, John!

Typed parameters and return types

You can annotate parameters with types and declare a return type after the parameter list:

fn Add(number a, number b) -> number {
  return a + b
}

fn Greet(text name) {
  Pewpew:Print("Hello" .. name .. "!")
}

Greet("John") // -> Hello, John!
let result = Add(10, 20)
Pewpew:Print(ToString(result)) // -> 30

Public functions

Use pub to make a function accessible from other files:

pub fn CalculateDamage(fixed base, fixed multiplier) -> fixed {
  return base * multiplier
}

Anonymous functions

Functions can be anonymous, too! Useful for callbacks.

let Greet = fn(name) {
  Pewpew:Print("Hello" .. name .. "!")
}

Greet("John") // -> Hello, John!

Function types

When declaring a variable that will hold a function, use the function type syntax:

pub fn(text, bool) callback // function uninitialized, type required

The type syntax is fn(params) -> return_type where both parameters and return type are optional.