Introduction
Balaur is a deterministic node-based 2D and 3D game engine. A game is a scene tree of nodes with scripts attached.
Hot reload and determinism
- Save a script and it reloads instantly.
- Determinism is always on: same inputs, same outputs on every platform.
A script
// spinner.rn
pub fn init(this) { this.angle = 0.0; }
pub fn update(this, dt) {
this.angle += dt;
this.node.transform.rotation_euler = [0.0, this.angle, 0.0];
}
A scene
# scene.toml
[[nodes]]
name = "Ball"
script = { source = "scripts/ball.rn" }
transform = { position = [0.0, 6.0, 0.0] }
body3d = { kind = "dynamic" }
collider3d = { kind = "sphere", radius = 0.5 }
shape3d = { kind = "sphere", radius = 0.5 }
This scene has a node called Ball with four components: transform, body3d, collider3d and shape3d.