Merge branch 'smoothland'

This adds rake and trail to the front, as well as increases the density/mass of the wheels, while
adding that parameter to the WheelConfig.

src/bike/components.rs

@@ -16,7 +16,6 @@ pub struct CyberWheel;
 #[reflect(Resource)]
 pub struct WheelConfig {
     pub front_forward: f32,
-    pub front_stance: f32,
     pub rear_back: f32,
     pub y: f32,
     pub limits: [f32; 2],
@@ -25,13 +24,13 @@ pub struct WheelConfig {
     pub radius: f32,
     pub friction: f32,
     pub restitution: f32,
+    pub density: f32,
 }
 
 impl Default for WheelConfig {
     fn default() -> Self {
         Self {
-            front_forward: 0.9,
-            front_stance: 0.65,
+            front_forward: 0.8,
             rear_back: 1.1,
             y: -0.1,
             limits: [-0.7, 0.1],
@@ -40,6 +39,7 @@ impl Default for WheelConfig {
             radius: 0.3,
             friction: 0.9,
             restitution: 0.8,
+            density: 0.9,
         }
     }
 }

src/bike/wheels.rs

@@ -75,7 +75,7 @@ pub fn spawn_tires(
             ..Default::default()
         };
         let wheel_collider = Collider::ball(wheel_rad);
-        let mass_props = ColliderMassProperties::Density(0.1);
+        let mass_props = ColliderMassProperties::Density(conf.density);
         let damping = conf.damping;
 
         let prismatic_axis = if steering.is_some() {
@@ -96,7 +96,8 @@ pub fn spawn_tires(
             .id();
 
         let axel_parent_entity = if let Some(steering) = steering {
-            let neck_builder = RevoluteJointBuilder::new(Vec3::Y);
+            let neck_builder =
+                RevoluteJointBuilder::new(Vec3::Y).local_anchor1(Vec3::new(0.0, 0.0, 0.1));
             let neck_joint = MultibodyJoint::new(fork_rb_entity, neck_builder);
             let neck = commands
                 .spawn(RigidBody::Dynamic)

src/main.rs

@@ -5,10 +5,13 @@ use cyber_rider::{
     planet::CyberPlanetPlugin, ui::CyberUIPlugin,
 };
 
+const CYBER_SKY: Color = Color::rgb(0.07, 0.001, 0.02);
+// const CYBER_SKY: Color = Color::rgb(0.64, 0.745, 0.937);
+
 fn main() {
     let mut app = App::new();
     app.insert_resource(Msaa { samples: 4 })
-        .insert_resource(ClearColor(Color::rgb(0.07, 0.001, 0.02)))
+        .insert_resource(ClearColor(CYBER_SKY))
         .add_plugins(DefaultPlugins.set(WindowPlugin {
             window: WindowDescriptor {
                 width: 2560.0,