implement drifting

src/actor.rs

@@ -128,6 +128,7 @@ pub fn update_physics_actors(
 ) {
     for (actor, mut transform) in q_actors.iter_mut() {
         transform.rotate(actor.angular_momentum);
+        transform.translation += actor.v;
     }
 }
 

src/world.rs

@@ -194,7 +194,10 @@ pub fn setup(
 
     // Add alien
     commands.spawn((
-        actor::Actor::default(),
+        actor::Actor {
+            v: Vec3::new(-0.005, 0.01, 0.015),
+            ..default()
+        },
         actor::Talker { conv: "Hello World!".to_string() },
         SceneBundle {
             transform: Transform {