Demo · Konjure

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main.kj⌘ / Ctrl + Enter

// Spinner owns its state and behavior; Rotate joins the live components.
type Spinner {
  angle: Number = 0;
  speed: Number = 1;

func advance(dt: Number) -> Res[Vec3, DataError] {
    self.angle = (self.angle + (self.speed * dt)?)?;
    let x = (self.angle * 0.5)?;
    ret Ok(Vec3 { y: self.angle, x: x });
  }

func reverse() -> Res[Unit, DataError] {
    self.speed = (-self.speed)?;
    ret Ok(());
  }
}

func make_spinner(x: Number, speed: Number) -> Entity {
  let item = spawn(Transform { position: Vec3 { x: x } });
  add(item, Box { size: Vec3 { x: 0.5, y: 0.5, z: 0.5 } });
  add(item, Material { color: "#b6a0ff" });
  add(item, Spinner { speed: speed });
  ret item;
}

let left = make_spinner(-1.2, 0.8);
let center = make_spinner(0, 1.2);
let right = make_spinner(1.2, 1.6);

system Rotate of (spinner: Spinner, pose: Transform) {
  func frame(dt: Number) -> Res[Unit, DataError] {
    pose.rotation = spinner.advance(dt)?;
    ret Ok(());
  }
}

func reverse() -> Res[Unit, DataError] {
  for item in query[Spinner]() {
    let mut spinner = get[Spinner](item);
    spinner.reverse()?;
    set(item, spinner);
  }
  print("Direction reversed");
  ret Ok(());
}

export reverse;
let control = spawn(Button { label: "Reverse", action: reverse });

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Physics example

main.kj⌘ / Ctrl + Enter

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Scene document examples

spatial-observatory.kj⌘ / Ctrl + Enter

// The complete observatory is evaluated by Rust, in meters and seconds.
scene spatial_observatory {
  title "Spatial observatory";
  node intelligence { sphere 0.42m; at 0m 0.25m 0m; color #b6a0ff; roughness 0.22; action highlight change_color #6fe3ff; }
  node sensor_frame { group; at 0m 0.25m 0m; spin 12deg; action motion toggle_motion; }
  node sensor_orbit { torus 1.5m 0.012m; parent sensor_frame; color #6fe3ff; roughness 0.25; }
  node model_orbit { torus 1.2m 0.024m; at 0m 0.25m 0m; rotate 52deg 0deg 30deg; color #b6a0ff; roughness 0.2; }
  node action_orbit { torus 0.8m 0.018m; at 0m 0.25m 0m; rotate -42deg 20deg -30deg; color #efb778; roughness 0.25; }
  node sensor_a { sphere 0.12m; parent sensor_frame; at 1.5m 0m 0m; color #6fe3ff; emissive 0.15; }
  node sensor_b { sphere 0.12m; parent sensor_frame; at -1.5m 0m 0m; color #6fe3ff; emissive 0.15; }
  node sensor_c { sphere 0.09m; parent sensor_frame; at 0m 0m 1.5m; color #6fe3ff; }
  node sensor_d { sphere 0.09m; parent sensor_frame; at 0m 0m -1.5m; color #6fe3ff; }
  node signal_a { line 0m 0m 0m to 1.5m 0m 0m; parent sensor_frame; color #6fe3ff; }
  node signal_b { line 0m 0m 0m to -1.5m 0m 0m; parent sensor_frame; color #6fe3ff; }
  node signal_c { line 0m 0m 0m to 0m 0m 1.5m; parent sensor_frame; color #6fe3ff; }
  node signal_d { line 0m 0m 0m to 0m 0m -1.5m; parent sensor_frame; color #6fe3ff; }
  node model_frame { group; at 0m 0.25m 0m; spin -8deg; }
  node model_a { box 0.2m 0.2m 0.2m; parent model_frame; at 0.85m 0.85m 0m; color #b6a0ff; spin 24deg; }
  node model_b { box 0.2m 0.2m 0.2m; parent model_frame; at -0.85m -0.65m 0m; color #b6a0ff; spin -24deg; }
  node link_a { line 0m 0m 0m to 0.85m 0.85m 0m; parent model_frame; color #b6a0ff; }
  node link_b { line 0m 0m 0m to -0.85m -0.65m 0m; parent model_frame; color #b6a0ff; }
  node agent { sphere 0.19m; at 0m 0.6m 0m; orbit 2.1m period 24s; color #efb778; action propose propose_effect "inspect_workspace"; }
  node landmark_a { cylinder 0.025m 0.3m; at -1.5m -0.65m 1.5m; color #6fe3ff; }
  node landmark_b { cylinder 0.025m 0.3m; at 1.5m -0.65m 1.5m; color #6fe3ff; }
  node landmark_c { cylinder 0.025m 0.3m; at 1.5m -0.65m -1.5m; color #6fe3ff; }
  node landmark_d { cylinder 0.025m 0.3m; at -1.5m -0.65m -1.5m; color #6fe3ff; }
  node boundary_a { line -1.5m -0.8m -1.5m to 1.5m -0.8m -1.5m; color #8193aa; }
  node boundary_b { line 1.5m -0.8m -1.5m to 1.5m -0.8m 1.5m; color #8193aa; }
  node boundary_c { line 1.5m -0.8m 1.5m to -1.5m -0.8m 1.5m; color #8193aa; }
  node boundary_d { line -1.5m -0.8m 1.5m to -1.5m -0.8m -1.5m; color #8193aa; }
  chat assistant "A shared place for observations, models and actions. Select an entity to inspect its declared actions.";
}

Legacy scene document syntax.

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Capability discovery never requests camera or microphone access.

scene robot_workspace {
  title "Robot workspace";
  node bench { box 2.8m 0.12m 2m; at 0m -0.65m 0m; color #253044; }
  node mount { cylinder 0.28m 0.15m; at -0.35m -0.5m 0m; color #8193aa; }
  node arm { group; at -0.35m -0.4m 0m; spin 8deg; action motion toggle_motion; action request_move propose_effect "simulated_motion"; }
  node shoulder { sphere 0.16m; parent arm; color #efb778; }
  node upper { box 0.15m 0.75m 0.15m; parent arm; at 0.2m 0.35m 0m; rotate 0deg 0deg -30deg; color #efb778; }
  node elbow { sphere 0.13m; parent arm; at 0.38m 0.68m 0m; color #b6a0ff; }
  node forearm { box 0.65m 0.12m 0.12m; parent arm; at 0.68m 0.7m 0m; color #efb778; }
  node wrist { sphere 0.1m; parent arm; at 1m 0.7m 0m; color #b6a0ff; }
  node finger_a { box 0.18m 0.045m 0.045m; parent arm; at 1.13m 0.74m 0.08m; color #8193aa; }
  node finger_b { box 0.18m 0.045m 0.045m; parent arm; at 1.13m 0.74m -0.08m; color #8193aa; }
  node target { box 0.22m 0.22m 0.22m; at 0.7m -0.48m 0.5m; color #6fe3ff; action mark change_color #b6a0ff; }
  node workspace { torus 1.1m 0.01m; at -0.35m -0.57m 0m; color #6fe3ff; }
  chat user "Move only in simulation.";
}

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