increase friction coefficients to more realistic values

src/bike/body.rs

@@ -16,7 +16,7 @@ pub(super) fn spawn_cyberbike(
     wheel_conf: Res<WheelConfig>,
     mut meshterials: Meshterial,
 ) {
-    let altitude = PLANET_RADIUS - 100.0;
+    let altitude = PLANET_RADIUS - 180.0;
 
     let mut xform = Transform::from_translation(Vec3::X * altitude)
         .with_rotation(Quat::from_axis_angle(Vec3::Z, -89.0f32.to_radians()));
@@ -81,5 +81,5 @@ pub(super) fn spawn_cyberbike(
         .insert(CatControllerState::default())
         .id();
 
-    spawn_tires(&mut commands, &xform, bike, &wheel_conf, &mut meshterials);
+    spawn_tires(&mut commands, bike, &wheel_conf, &mut meshterials);
 }

src/bike/components.rs

@@ -37,7 +37,7 @@ impl Default for WheelConfig {
             stiffness: 90.0,
             damping: 8.0,
             radius: 0.3,
-            friction: 0.9,
+            friction: 1.2,
             restitution: 0.8,
             density: 0.9,
         }

src/bike/wheels.rs

@@ -9,7 +9,6 @@ use super::{CyberSteering, CyberWheel, Meshterial, WheelConfig, BIKE_WHEEL_COLLI
 
 pub fn spawn_tires(
     commands: &mut Commands,
-    _xform: &Transform,
     bike: Entity,
     conf: &WheelConfig,
     meshterials: &mut Meshterial,

src/planet.rs

@@ -32,7 +32,7 @@ fn spawn_planet(
     let pcollide = (
         shape,
         Friction {
-            coefficient: 0.8,
+            coefficient: 1.2,
             ..Default::default()
         },
         Restitution::new(0.8),