Variables & Types

Declaring Variables

Use let for mutable variables and const for constants:

let health: int = 20;
let name: string = "Steve";
const MAX_PLAYERS: int = 16;

const values cannot be reassigned:

const PI: float = 3.14;
PI = 3.15; // Error: cannot reassign constant

Types

RedScript has four primitive types:

Type	Description	Example
int	Integer numbers	42, -7, 0
float	Decimal numbers	3.14, -0.5
string	Text	"hello", "Steve"
bool	Boolean	true, false

Integers

let score: int = 0;
let negative: int = -10;
score = score + 1;

Floats

let speed: float = 1.5;
let ratio: float = 0.75;

Strings

Strings support interpolation with ${}:

let player: string = "Alex";
let msg: string = "Hello, ${player}!";
say(msg); // Hello, Alex!

Booleans

let alive: bool = true;
let creative: bool = false;

Arrays

Arrays hold multiple values of the same type:

let scores: int[] = [10, 20, 30];
let names: string[] = ["Alice", "Bob"];

Access elements by index:

let first: int = scores[0]; // 10

Type Inference

RedScript can infer the type when the value is obvious:

let health = 20;        // inferred as int
let name = "Steve";     // inferred as string
let alive = true;       // inferred as bool
let speed = 1.5;        // inferred as float

Explicit types are recommended for clarity, but optional.

Global Variables

Variables declared at the top level are global and accessible from any function:

let score: int = 0;

@tick(rate=20)
fn update() {
    score = score + 1;
    actionbar(@a, "Score: ${score}");
}

fn reset() {
    score = 0;
}

Global variables are stored as Minecraft scoreboard objectives.

Next Steps

• Functions — Define reusable logic
• Structs & Enums — Custom data types