From a477e0bb40747e980d4d2e6cb91501193fea2aa4 Mon Sep 17 00:00:00 2001
From: Joe Ardent <code@ardent.nebcorp.com>
Date: Sat, 8 Jan 2022 22:53:34 -0800
Subject: [PATCH 1/3] Update deps.

---
 Cargo.lock | 93 ++++++++++++++++++++++++++++--------------------------
 1 file changed, 48 insertions(+), 45 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 3e8e37e..591e4c3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -152,14 +152,14 @@ checksum = "904dfeac50f3cdaba28fc6f57fdcddb75f49ed61346676a78c4ffe55877802fd"
 
 [[package]]
 name = "bevy"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "bevy_internal",
 ]
 
 [[package]]
 name = "bevy-crevice-derive"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "bevy_macro_utils",
  "proc-macro2",
@@ -169,7 +169,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_app"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "bevy_derive",
  "bevy_ecs",
@@ -181,7 +181,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_asset"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "anyhow",
  "bevy_app",
@@ -206,7 +206,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_core"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "bevy_app",
  "bevy_derive",
@@ -220,7 +220,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_core_pipeline"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "bevy_app",
  "bevy_asset",
@@ -231,7 +231,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_crevice"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "bevy-crevice-derive",
  "bytemuck",
@@ -241,7 +241,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_derive"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "bevy_macro_utils",
  "quote",
@@ -250,7 +250,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_diagnostic"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "bevy_app",
  "bevy_core",
@@ -261,7 +261,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_ecs"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "async-channel",
  "bevy_ecs_macros",
@@ -277,7 +277,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_ecs_macros"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "bevy_macro_utils",
  "proc-macro2",
@@ -287,7 +287,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_gilrs"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "bevy_app",
  "bevy_ecs",
@@ -298,7 +298,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_gltf"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "anyhow",
  "base64",
@@ -321,7 +321,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_input"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "bevy_app",
  "bevy_ecs",
@@ -331,7 +331,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_internal"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "bevy_app",
  "bevy_asset",
@@ -362,7 +362,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_log"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "android_log-sys",
  "bevy_app",
@@ -375,7 +375,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_macro_utils"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "cargo-manifest",
  "quote",
@@ -384,7 +384,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_math"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "bevy_reflect",
  "glam",
@@ -392,7 +392,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_pbr"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "bevy_app",
  "bevy_asset",
@@ -411,7 +411,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_reflect"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "bevy_reflect_derive",
  "bevy_utils",
@@ -426,7 +426,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_reflect_derive"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "bevy_macro_utils",
  "proc-macro2",
@@ -437,7 +437,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_render"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "anyhow",
  "bevy_app",
@@ -453,6 +453,7 @@ dependencies = [
  "bevy_window",
  "bitflags",
  "codespan-reporting",
+ "copyless",
  "downcast-rs",
  "futures-lite",
  "hex",
@@ -470,7 +471,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_scene"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "anyhow",
  "bevy_app",
@@ -487,7 +488,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_sprite"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "bevy_app",
  "bevy_asset",
@@ -500,7 +501,9 @@ dependencies = [
  "bevy_render",
  "bevy_transform",
  "bevy_utils",
+ "bitflags",
  "bytemuck",
+ "copyless",
  "guillotiere",
  "rectangle-pack",
  "serde",
@@ -509,7 +512,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_tasks"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "async-channel",
  "async-executor",
@@ -521,7 +524,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_text"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "ab_glyph",
  "anyhow",
@@ -543,7 +546,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_transform"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "bevy_app",
  "bevy_ecs",
@@ -555,7 +558,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_ui"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "bevy_app",
  "bevy_asset",
@@ -581,7 +584,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_utils"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "ahash",
  "bevy_derive",
@@ -593,7 +596,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_window"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "bevy_app",
  "bevy_math",
@@ -604,7 +607,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_winit"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "approx",
  "bevy_app",
@@ -914,9 +917,9 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-channel"
-version = "0.5.1"
+version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "06ed27e177f16d65f0f0c22a213e17c696ace5dd64b14258b52f9417ccb52db4"
+checksum = "e54ea8bc3fb1ee042f5aace6e3c6e025d3874866da222930f70ce62aceba0bfa"
 dependencies = [
  "cfg-if 1.0.0",
  "crossbeam-utils",
@@ -935,9 +938,9 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-epoch"
-version = "0.9.5"
+version = "0.9.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4ec02e091aa634e2c3ada4a392989e7c3116673ef0ac5b72232439094d73b7fd"
+checksum = "97242a70df9b89a65d0b6df3c4bf5b9ce03c5b7309019777fbde37e7537f8762"
 dependencies = [
  "cfg-if 1.0.0",
  "crossbeam-utils",
@@ -948,9 +951,9 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-queue"
-version = "0.3.2"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9b10ddc024425c88c2ad148c1b0fd53f4c6d38db9697c9f1588381212fa657c9"
+checksum = "b979d76c9fcb84dffc80a73f7290da0f83e4c95773494674cb44b76d13a7a110"
 dependencies = [
  "cfg-if 1.0.0",
  "crossbeam-utils",
@@ -958,9 +961,9 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-utils"
-version = "0.8.5"
+version = "0.8.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d82cfc11ce7f2c3faef78d8a684447b40d503d9681acebed6cb728d45940c4db"
+checksum = "cfcae03edb34f947e64acdb1c33ec169824e20657e9ecb61cef6c8c74dcb8120"
 dependencies = [
  "cfg-if 1.0.0",
  "lazy_static",
@@ -1370,7 +1373,7 @@ dependencies = [
 
 [[package]]
 name = "heron"
-version = "0.12.1"
+version = "0.13.0"
 dependencies = [
  "bevy",
  "cfg_aliases",
@@ -1381,7 +1384,7 @@ dependencies = [
 
 [[package]]
 name = "heron_core"
-version = "0.12.1"
+version = "0.13.0"
 dependencies = [
  "bevy",
  "cfg_aliases",
@@ -1390,7 +1393,7 @@ dependencies = [
 
 [[package]]
 name = "heron_macros"
-version = "0.12.1"
+version = "0.13.0"
 dependencies = [
  "heron_core",
  "quote",
@@ -1399,7 +1402,7 @@ dependencies = [
 
 [[package]]
 name = "heron_rapier"
-version = "0.12.1"
+version = "0.13.0"
 dependencies = [
  "bevy",
  "cfg_aliases",
@@ -1455,9 +1458,9 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "1.7.0"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc633605454125dec4b66843673f01c7df2b89479b32e0ed634e43a91cff62a5"
+checksum = "282a6247722caba404c065016bbfa522806e51714c34f5dfc3e4a3a46fcb4223"
 dependencies = [
  "autocfg",
  "hashbrown",

From 5fba5af72e23c607aff5d99478b01380a02a5a39 Mon Sep 17 00:00:00 2001
From: Joe Ardent <code@ardent.nebcorp.com>
Date: Sun, 9 Jan 2022 22:29:35 -0800
Subject: [PATCH 2/3] quick dep update

---
 Cargo.lock | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 591e4c3..122b328 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1373,7 +1373,7 @@ dependencies = [
 
 [[package]]
 name = "heron"
-version = "0.13.0"
+version = "1.0.1-rc.1"
 dependencies = [
  "bevy",
  "cfg_aliases",
@@ -1384,7 +1384,7 @@ dependencies = [
 
 [[package]]
 name = "heron_core"
-version = "0.13.0"
+version = "1.0.1-rc.1"
 dependencies = [
  "bevy",
  "cfg_aliases",
@@ -1393,7 +1393,7 @@ dependencies = [
 
 [[package]]
 name = "heron_macros"
-version = "0.13.0"
+version = "1.0.1-rc.1"
 dependencies = [
  "heron_core",
  "quote",
@@ -1402,7 +1402,7 @@ dependencies = [
 
 [[package]]
 name = "heron_rapier"
-version = "0.13.0"
+version = "1.0.1-rc.1"
 dependencies = [
  "bevy",
  "cfg_aliases",

From 483dc3f8645e457e84c56ca04adad7333bfa28c0 Mon Sep 17 00:00:00 2001
From: Joe Ardent <code@ardent.nebcorp.com>
Date: Wed, 12 Jan 2022 00:18:13 -0800
Subject: [PATCH 3/3] Refactor done, still works.

Mostly resisted the urge to add or change functionality. Checks clean and should have the foundation
for real game-focused devel going forward.
---
 src/camera.rs   |  63 +++++++++++
 src/flycam.rs   | 295 ------------------------------------------------
 src/geometry.rs |  67 +++++++++++
 src/input.rs    |  49 ++++++++
 src/lib.rs      |  15 ++-
 src/lights.rs   | 209 ++++++++++++++++++++++++++++++++++
 src/main.rs     | 260 ++++--------------------------------------
 src/physics.rs  | 161 ++++++++++++++++++++++++++
 src/ui.rs       |  47 ++++++++
 9 files changed, 633 insertions(+), 533 deletions(-)
 create mode 100644 src/camera.rs
 delete mode 100644 src/flycam.rs
 create mode 100644 src/geometry.rs
 create mode 100644 src/input.rs
 create mode 100644 src/lights.rs
 create mode 100644 src/physics.rs
 create mode 100644 src/ui.rs

diff --git a/src/camera.rs b/src/camera.rs
new file mode 100644
index 0000000..f4a121b
--- /dev/null
+++ b/src/camera.rs
@@ -0,0 +1,63 @@
+use bevy::prelude::*;
+
+use crate::{geometry::CyberBike, input::InputState, physics::MovementSettings};
+
+pub(crate) const CAM_DIST: f32 = 50.0;
+
+#[derive(Component, Debug)]
+pub struct CyberCam;
+
+fn setup_cybercam(mut commands: Commands) {
+    use crate::geometry::PLAYER_DIST;
+    commands
+        .spawn_bundle(PerspectiveCameraBundle {
+            transform: Transform::from_xyz(PLAYER_DIST + CAM_DIST, 0.0, 0.0)
+                .looking_at(Vec3::ZERO, Vec3::Y),
+            ..Default::default()
+        })
+        .insert(CyberCam);
+}
+
+fn follow_player(
+    bike_query: Query<(&Transform, &CyberBike), Without<CyberCam>>,
+    mut cam_query: Query<(&mut Transform, &CyberCam), Without<CyberBike>>,
+) {
+    let (bike_xform, _) = bike_query.single();
+    let up = bike_xform.translation.normalize();
+
+    let look_at = bike_xform.translation;
+    let cam_pos = bike_xform.translation + (bike_xform.back() * CAM_DIST * 1.3) + (up * CAM_DIST);
+
+    let (mut cam_xform, _) = cam_query.single_mut();
+    cam_xform.translation = cam_pos;
+    cam_xform.look_at(look_at, up);
+}
+
+fn player_look(
+    settings: Res<MovementSettings>,
+    windows: Res<Windows>,
+    time: Res<Time>,
+    istate: Res<InputState>,
+    mut query: Query<(&mut Transform, &CyberBike)>,
+) {
+    let window = windows.get_primary().unwrap();
+    let window_scale = window.height().min(window.width());
+    let dt = time.delta_seconds();
+    let (mut transform, _) = query.single_mut();
+
+    let d_alt = (settings.sensitivity * dt * window_scale * istate.pitch).to_radians();
+    let d_az = (settings.sensitivity * dt * window_scale * istate.yaw).to_radians();
+    let rotation = Quat::from_axis_angle(transform.local_y(), d_az)
+        * Quat::from_axis_angle(transform.local_x(), d_alt);
+
+    transform.rotate(rotation);
+}
+
+pub struct CyberCamPlugin;
+impl Plugin for CyberCamPlugin {
+    fn build(&self, app: &mut bevy::prelude::App) {
+        app.add_startup_system(setup_cybercam)
+            .add_system(follow_player)
+            .add_system(player_look);
+    }
+}
diff --git a/src/flycam.rs b/src/flycam.rs
deleted file mode 100644
index d6328d0..0000000
--- a/src/flycam.rs
+++ /dev/null
@@ -1,295 +0,0 @@
-use bevy::{
-    app::{Events, ManualEventReader},
-    input::{
-        gamepad::{GamepadAxisType, GamepadEvent, GamepadEventType},
-        Input,
-    },
-    prelude::*,
-    utils::tracing::info,
-};
-use heron::{
-    prelude::{CollisionShape, RigidBody},
-    CollisionEvent,
-};
-
-pub const PLANET_RADIUS: f32 = 150.0;
-
-const PLAYER_DIST: f32 = PLANET_RADIUS + 100.0;
-const CAM_DIST: f32 = 50.0;
-
-#[derive(Component, Default)]
-struct PlayerState {
-    velocity: Vec3,
-    colliding: bool,
-}
-
-#[derive(Default)]
-struct InputState {
-    event_reader: ManualEventReader<GamepadEvent>,
-    pitch: f32,
-    yaw: f32,
-    throttle: f32,
-}
-
-/// Mouse sensitivity and movement speed
-pub struct MovementSettings {
-    pub sensitivity: f32,
-    pub accel: f32,
-    pub drag: f32,
-    pub gravity: f32,
-}
-
-impl Default for MovementSettings {
-    fn default() -> Self {
-        Self {
-            sensitivity: 1.0,
-            accel: 40.,
-            drag: 0.0005,
-            gravity: 10.0,
-        }
-    }
-}
-
-/// Used in queries when you want flycams and not other cameras
-#[derive(Component, Debug)]
-pub struct FlyCam;
-
-#[derive(Component, Debug)]
-pub struct CyberBike;
-
-#[derive(Component)]
-struct UpText;
-
-/// Spawns the `Camera3dBundle` to be controlled
-fn setup_player(mut commands: Commands, asset_server: Res<AssetServer>) {
-    commands
-        .spawn_bundle(PerspectiveCameraBundle {
-            transform: Transform::from_xyz(PLAYER_DIST + CAM_DIST, 0.0, 0.0)
-                .looking_at(Vec3::ZERO, Vec3::Y),
-            ..Default::default()
-        })
-        .insert(FlyCam);
-
-    commands
-        .spawn_bundle((
-            Transform {
-                translation: Vec3::new(PLAYER_DIST, 0.0, 0.0),
-                ..Default::default()
-            }
-            .looking_at(Vec3::ZERO, Vec3::Y),
-            GlobalTransform::identity(),
-        ))
-        .with_children(|rider| {
-            rider.spawn_scene(asset_server.load("cyber-bike_no_y_up.glb#Scene0"));
-        })
-        .insert(CyberBike)
-        .insert(RigidBody::Dynamic)
-        .insert(CollisionShape::Cone {
-            half_height: 2.0,
-            radius: 0.8,
-        })
-        .insert(PlayerState::default());
-}
-
-fn setup_ui(mut commands: Commands, asset_server: Res<AssetServer>) {
-    commands.spawn_bundle(UiCameraBundle::default());
-
-    commands
-        .spawn_bundle(TextBundle {
-            style: Style {
-                align_self: AlignSelf::FlexEnd,
-                ..Default::default()
-            },
-            // Use `Text` directly
-            text: Text {
-                // Construct a `Vec` of `TextSection`s
-                sections: vec![TextSection {
-                    value: "".to_string(),
-                    style: TextStyle {
-                        font: asset_server.load("fonts/FiraMono-Medium.ttf"),
-                        font_size: 40.0,
-                        color: Color::GOLD,
-                    },
-                }],
-                ..Default::default()
-            },
-            ..Default::default()
-        })
-        .insert(UpText);
-}
-
-fn ui_system(pstate_query: Query<&PlayerState>, mut text_query: Query<&mut Text, With<UpText>>) {
-    let mut text = text_query.single_mut();
-    let pstate = pstate_query.single();
-    text.sections[0].value = format!("{:.2}", pstate.velocity.length());
-}
-
-fn player_move(
-    time: Res<Time>,
-    mut bike_query: Query<(&mut Transform, &PlayerState), Without<FlyCam>>,
-    mut cam_query: Query<(&mut Transform, &FlyCam), Without<PlayerState>>,
-) {
-    let dt = time.delta_seconds();
-
-    let (mut bike_xform, player_state) = bike_query.single_mut();
-    let up = bike_xform.translation.normalize();
-    let cam_up = bike_xform.up();
-    let cos = up.dot(cam_up);
-
-    let theta = cos.acos();
-    let rate = if !theta.is_normal() {
-        0.0
-    } else if theta.is_sign_negative() {
-        -0.4
-    } else {
-        0.4
-    } * dt;
-    let angle = if rate.is_sign_negative() {
-        rate.max(theta)
-    } else {
-        rate.min(theta)
-    };
-
-    let rot = Quat::from_axis_angle(cam_up.cross(up).normalize(), angle);
-
-    if rot.is_finite() && theta.abs() > 0.0085 {
-        bike_xform.rotate(rot);
-    }
-
-    if player_state.velocity.is_finite() {
-        bike_xform.translation += player_state.velocity * dt;
-    }
-
-    let look_at = bike_xform.translation;
-    let cam_pos = bike_xform.translation + (bike_xform.back() * CAM_DIST * 1.3) + (up * CAM_DIST);
-
-    let (mut cam_xform, _) = cam_query.single_mut();
-    cam_xform.translation = cam_pos;
-    cam_xform.look_at(look_at, up);
-}
-
-fn player_look(
-    settings: Res<MovementSettings>,
-    windows: Res<Windows>,
-    events: Res<Events<GamepadEvent>>,
-    time: Res<Time>,
-    mut istate: ResMut<InputState>,
-    mut query: Query<(&mut Transform, &mut PlayerState)>,
-) {
-    let window = windows.get_primary().unwrap();
-    let window_scale = window.height().min(window.width());
-    let dt = time.delta_seconds();
-    let (mut transform, mut pstate) = query.single_mut();
-    let mut vel = pstate.velocity;
-
-    if pstate.velocity.is_finite() {
-        for GamepadEvent(_, ev) in istate.event_reader.iter(&events) {
-            match *ev {
-                GamepadEventType::ButtonChanged(GamepadButtonType::RightTrigger2, val) => {
-                    istate.throttle = val;
-                }
-                GamepadEventType::ButtonChanged(GamepadButtonType::LeftTrigger2, val) => {
-                    istate.throttle = -val;
-                }
-                GamepadEventType::ButtonChanged(GamepadButtonType::East, val) => {
-                    if val > 0.5 {
-                        vel = Vec3::ZERO;
-                    }
-                }
-                GamepadEventType::AxisChanged(GamepadAxisType::LeftStickX, val) => {
-                    istate.yaw = -val;
-                }
-                GamepadEventType::AxisChanged(GamepadAxisType::LeftStickY, val) => {
-                    istate.pitch = -val;
-                }
-                _ => {
-                    info!("unhandled gamepad event: {:?}", ev);
-                }
-            }
-        }
-
-        let accel = settings.accel * dt * istate.throttle;
-
-        vel += transform.forward() * accel;
-
-        // drag
-        let v2 = vel.length_squared().min(100_000.0);
-        if v2 < 0.05 {
-            vel = Vec3::ZERO;
-        } else {
-            let drag = vel * settings.drag * v2.sqrt() * time.delta_seconds();
-            vel -= drag;
-        }
-    } else {
-        vel = Vec3::ZERO;
-    }
-
-    let d_alt = (settings.sensitivity * dt * window_scale * istate.pitch).to_radians();
-    let d_az = (settings.sensitivity * dt * window_scale * istate.yaw).to_radians();
-    let rotation = Quat::from_axis_angle(transform.local_y(), d_az)
-        * Quat::from_axis_angle(transform.local_x(), d_alt);
-
-    transform.rotate(rotation);
-
-    pstate.velocity = vel;
-}
-
-fn collision_detection(
-    mut events: EventReader<CollisionEvent>,
-    mut query: Query<&mut PlayerState>,
-) {
-    let mut pstate = query.single_mut();
-
-    for event in events.iter() {
-        if let CollisionEvent::Started(_, _) = event {
-            pstate.colliding = true;
-        } else {
-            pstate.colliding = false;
-        }
-    }
-}
-
-fn gravity_collision_reaction(
-    time: Res<Time>,
-    settings: Res<MovementSettings>,
-    mut query: Query<(&mut PlayerState, &Transform)>,
-) {
-    let dt = time.delta_seconds();
-    let g = settings.gravity;
-    let (mut pstate, xform) = query.single_mut();
-
-    // first gravity
-    let down = -xform.translation.normalize();
-    let dvel = down * g * dt;
-    let mut vel = if pstate.velocity.is_finite() {
-        pstate.velocity + dvel
-    } else {
-        dvel
-    };
-
-    // now see if we're currently colliding
-    if pstate.colliding {
-        let dvel = down * vel.dot(down) * 1.02;
-        vel -= dvel;
-    }
-
-    pstate.velocity = vel;
-}
-
-/// Contains everything needed to add first-person fly camera behavior to your
-/// game
-pub struct PlayerPlugin;
-impl Plugin for PlayerPlugin {
-    fn build(&self, app: &mut bevy::prelude::App) {
-        app.init_resource::<PlayerState>()
-            .init_resource::<MovementSettings>()
-            .init_resource::<InputState>()
-            .add_startup_system(setup_player)
-            .add_startup_system(setup_ui)
-            .add_system(ui_system)
-            .add_system(player_move.label("move"))
-            .add_system(player_look.after("move"))
-            .add_system(collision_detection)
-            .add_system(gravity_collision_reaction);
-    }
-}
diff --git a/src/geometry.rs b/src/geometry.rs
new file mode 100644
index 0000000..f97445b
--- /dev/null
+++ b/src/geometry.rs
@@ -0,0 +1,67 @@
+use bevy::prelude::*;
+use heron::prelude::{CollisionShape, RigidBody};
+
+pub const PLANET_RADIUS: f32 = 150.0;
+pub(crate) const PLAYER_DIST: f32 = PLANET_RADIUS + 100.0;
+
+pub struct CyberGeomPlugin;
+
+impl Plugin for CyberGeomPlugin {
+    fn build(&self, app: &mut App) {
+        app.add_startup_system(setup_giant_sphere)
+            .add_startup_system(setup_player);
+    }
+}
+
+#[derive(Component, Debug)]
+pub struct CyberBike;
+
+fn setup_giant_sphere(
+    mut commands: Commands,
+    mut meshes: ResMut<Assets<Mesh>>,
+    mut materials: ResMut<Assets<StandardMaterial>>,
+) {
+    // world
+    commands
+        .spawn_bundle(PbrBundle {
+            mesh: meshes.add(Mesh::from(shape::Icosphere {
+                radius: PLANET_RADIUS,
+                subdivisions: 6,
+            })),
+            material: materials.add(StandardMaterial {
+                base_color: Color::GRAY,
+                metallic: 0.7,
+                perceptual_roughness: 0.5,
+                ..Default::default()
+            }),
+
+            ..Default::default()
+        })
+        .insert(RigidBody::Static)
+        .insert(CollisionShape::Sphere {
+            radius: PLANET_RADIUS,
+        });
+}
+
+fn setup_player(mut commands: Commands, asset_server: Res<AssetServer>) {
+    use crate::physics::PlayerState;
+    commands
+        .spawn_bundle((
+            Transform {
+                translation: Vec3::new(PLAYER_DIST, 0.0, 0.0),
+                ..Default::default()
+            }
+            .looking_at(Vec3::ZERO, Vec3::Y),
+            GlobalTransform::identity(),
+        ))
+        .with_children(|rider| {
+            rider.spawn_scene(asset_server.load("cyber-bike_no_y_up.glb#Scene0"));
+        })
+        .insert(CyberBike)
+        .insert(RigidBody::Dynamic)
+        .insert(CollisionShape::Cone {
+            half_height: 2.0,
+            radius: 0.8,
+        })
+        .insert(PlayerState::default());
+}
diff --git a/src/input.rs b/src/input.rs
new file mode 100644
index 0000000..093fb7d
--- /dev/null
+++ b/src/input.rs
@@ -0,0 +1,49 @@
+use bevy::{
+    app::{Events, ManualEventReader},
+    prelude::*,
+};
+
+#[derive(Default)]
+pub(crate) struct InputState {
+    event_reader: ManualEventReader<GamepadEvent>,
+    pub pitch: f32,
+    pub yaw: f32,
+    pub throttle: f32,
+    pub brake: bool,
+}
+
+fn update_input(events: Res<Events<GamepadEvent>>, mut istate: ResMut<InputState>) {
+    for GamepadEvent(_, ev) in istate.event_reader.iter(&events) {
+        match *ev {
+            GamepadEventType::ButtonChanged(GamepadButtonType::RightTrigger2, val) => {
+                istate.throttle = val;
+            }
+            GamepadEventType::ButtonChanged(GamepadButtonType::LeftTrigger2, val) => {
+                istate.throttle = -val;
+            }
+            GamepadEventType::ButtonChanged(GamepadButtonType::East, val) => {
+                if val > 0.5 {
+                    istate.brake = true;
+                } else {
+                    istate.brake = false;
+                }
+            }
+            GamepadEventType::AxisChanged(GamepadAxisType::LeftStickX, val) => {
+                istate.yaw = -val;
+            }
+            GamepadEventType::AxisChanged(GamepadAxisType::LeftStickY, val) => {
+                istate.pitch = -val;
+            }
+            _ => {
+                info!("unhandled gamepad event: {:?}", ev);
+            }
+        }
+    }
+}
+
+pub struct CyberInputPlugin;
+impl Plugin for CyberInputPlugin {
+    fn build(&self, app: &mut App) {
+        app.init_resource::<InputState>().add_system(update_input);
+    }
+}
diff --git a/src/lib.rs b/src/lib.rs
index ba4f6a8..e8ca28c 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1 +1,14 @@
-pub mod flycam;
+use bevy::prelude::{ResMut, Windows};
+
+pub mod camera;
+pub mod geometry;
+pub mod input;
+pub mod lights;
+pub mod physics;
+pub mod ui;
+
+pub fn disable_mouse_trap(mut windows: ResMut<Windows>) {
+    let window = windows.get_primary_mut().unwrap();
+    window.set_cursor_lock_mode(false);
+    window.set_cursor_visibility(true);
+}
diff --git a/src/lights.rs b/src/lights.rs
new file mode 100644
index 0000000..b5fde38
--- /dev/null
+++ b/src/lights.rs
@@ -0,0 +1,209 @@
+use bevy::prelude::*;
+
+use crate::geometry::PLANET_RADIUS;
+
+pub const LIGHT_RANGE: f32 = PLANET_RADIUS * 0.6;
+pub const LIGHT_DIST: f32 = PLANET_RADIUS * 1.2;
+
+pub struct CyberSpaceLightsPlugin;
+
+impl Plugin for CyberSpaceLightsPlugin {
+    fn build(&self, app: &mut App) {
+        app.add_startup_system(setup).add_system(animate_lights);
+    }
+}
+
+#[derive(Component)]
+struct Animate;
+
+fn setup(
+    mut commands: Commands,
+    mut meshes: ResMut<Assets<Mesh>>,
+    mut materials: ResMut<Assets<StandardMaterial>>,
+) {
+    let red_light = PointLight {
+        intensity: 1_000.0,
+        range: LIGHT_RANGE,
+        color: Color::RED,
+        radius: 1.0,
+        ..Default::default()
+    };
+
+    let blue_light = PointLight {
+        intensity: 1_000.0,
+        range: LIGHT_RANGE,
+        color: Color::BLUE,
+        radius: 1.0,
+        ..Default::default()
+    };
+
+    let purple_light = PointLight {
+        intensity: 1_000.0,
+        range: LIGHT_RANGE,
+        color: Color::PURPLE,
+        radius: 1.0,
+        ..Default::default()
+    };
+
+    commands.insert_resource(AmbientLight {
+        color: Color::WHITE,
+        brightness: 0.32,
+    });
+
+    // east light
+    commands
+        .spawn_bundle(PointLightBundle {
+            transform: Transform::from_xyz(LIGHT_DIST, 0.0, 0.0),
+            point_light: purple_light,
+            ..Default::default()
+        })
+        .with_children(|builder| {
+            builder.spawn_bundle(PbrBundle {
+                mesh: meshes.add(Mesh::from(shape::UVSphere {
+                    radius: 10.0,
+                    ..Default::default()
+                })),
+                material: materials.add(StandardMaterial {
+                    base_color: Color::PURPLE,
+                    emissive: Color::rgba_linear(50.0, 0.0, 50.0, 0.0),
+                    ..Default::default()
+                }),
+                ..Default::default()
+            });
+        })
+        .insert(Animate);
+
+    // west light
+    commands
+        .spawn_bundle(PointLightBundle {
+            transform: Transform::from_xyz(-LIGHT_DIST, 0.0, 0.0),
+            point_light: purple_light,
+            ..Default::default()
+        })
+        .with_children(|builder| {
+            builder.spawn_bundle(PbrBundle {
+                mesh: meshes.add(Mesh::from(shape::UVSphere {
+                    radius: 10.0,
+                    ..Default::default()
+                })),
+                material: materials.add(StandardMaterial {
+                    base_color: Color::PURPLE,
+                    emissive: Color::rgba_linear(50.0, 0.0, 50.0, 0.0),
+                    ..Default::default()
+                }),
+                ..Default::default()
+            });
+        })
+        .insert(Animate);
+    // north light
+    commands
+        .spawn_bundle(PointLightBundle {
+            transform: Transform::from_xyz(0.0, 0.0, LIGHT_DIST),
+            point_light: purple_light,
+            ..Default::default()
+        })
+        .with_children(|builder| {
+            builder.spawn_bundle(PbrBundle {
+                mesh: meshes.add(Mesh::from(shape::UVSphere {
+                    radius: 10.0,
+                    ..Default::default()
+                })),
+                material: materials.add(StandardMaterial {
+                    base_color: Color::PURPLE,
+                    emissive: Color::rgba_linear(50.0, 0.0, 50.0, 0.0),
+                    ..Default::default()
+                }),
+                ..Default::default()
+            });
+        })
+        .insert(Animate);
+    // south light
+    commands
+        .spawn_bundle(PointLightBundle {
+            transform: Transform::from_xyz(0.0, 0.0, -LIGHT_DIST),
+            point_light: purple_light,
+            ..Default::default()
+        })
+        .with_children(|builder| {
+            builder.spawn_bundle(PbrBundle {
+                mesh: meshes.add(Mesh::from(shape::UVSphere {
+                    radius: 10.0,
+                    ..Default::default()
+                })),
+                material: materials.add(StandardMaterial {
+                    base_color: Color::PURPLE,
+                    emissive: Color::rgba_linear(50.0, 0.0, 50.0, 0.0),
+                    ..Default::default()
+                }),
+                ..Default::default()
+            });
+        })
+        .insert(Animate);
+    // up light
+    commands
+        .spawn_bundle(PointLightBundle {
+            transform: Transform::from_xyz(0.0, LIGHT_DIST, 0.0),
+            point_light: red_light,
+            ..Default::default()
+        })
+        .with_children(|builder| {
+            builder.spawn_bundle(PbrBundle {
+                mesh: meshes.add(Mesh::from(shape::Icosphere {
+                    radius: 10.0,
+                    subdivisions: 2,
+                })),
+                material: materials.add(StandardMaterial {
+                    base_color: Color::RED,
+                    emissive: Color::rgba_linear(100.0, 0.0, 0.0, 0.0),
+                    ..Default::default()
+                }),
+                ..Default::default()
+            });
+        });
+    // down light
+    commands
+        .spawn_bundle(PointLightBundle {
+            transform: Transform::from_xyz(0.0, -LIGHT_DIST, 0.0),
+            point_light: blue_light,
+            ..Default::default()
+        })
+        .with_children(|builder| {
+            builder.spawn_bundle(PbrBundle {
+                mesh: meshes.add(Mesh::from(shape::Icosphere {
+                    radius: 10.0,
+                    subdivisions: 2,
+                })),
+                material: materials.add(StandardMaterial {
+                    base_color: Color::BLUE,
+                    emissive: Color::rgba_linear(0.0, 0.0, 100.0, 0.0),
+                    ..Default::default()
+                }),
+                ..Default::default()
+            });
+        });
+}
+
+fn animate_lights(
+    time: Res<Time>,
+    mut query: Query<&mut Transform, (With<PointLight>, With<Animate>)>,
+) {
+    let dt = time.delta_seconds();
+    for mut transform in query.iter_mut() {
+        let translation = &transform.translation;
+        let x = translation.x;
+        let y = translation.y;
+        let z = if translation.z.abs() < 0.1 {
+            translation.z + 0.15
+        } else {
+            translation.z
+        };
+
+        let rads = 10.0f32.to_radians();
+        let anim_rate = rads * dt;
+        let theta = z.atan2(x) + anim_rate;
+        let x_new = LIGHT_DIST * theta.cos();
+        let z_new = LIGHT_DIST * theta.sin();
+
+        *transform = Transform::from_xyz(x_new, y, z_new);
+    }
+}
diff --git a/src/main.rs b/src/main.rs
index ebeef01..9c82524 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,247 +1,33 @@
 use bevy::prelude::*;
-use cyber_rider::flycam::{MovementSettings, PlayerPlugin, PLANET_RADIUS};
-use heron::prelude::*;
+use cyber_rider::{
+    camera::CyberCamPlugin,
+    disable_mouse_trap,
+    geometry::CyberGeomPlugin,
+    input::CyberInputPlugin,
+    lights::CyberSpaceLightsPlugin,
+    physics::{CyberPhysicsPlugin, MovementSettings},
+    ui::CyberUIPlugin,
+};
 
-const LIGHT_RANGE: f32 = PLANET_RADIUS * 0.6;
-const LIGHT_DIST: f32 = PLANET_RADIUS * 1.2;
+const MOVEMENT_SETTINGS: MovementSettings = MovementSettings {
+    sensitivity: 0.3, // default: 1.0
+    accel: 20.0,      // default: 40.0
+    drag: 0.0001,     // default: 0.0005
+    gravity: 10.0,    // default: 10.0
+};
 
 fn main() {
     App::new()
         .insert_resource(Msaa { samples: 4 })
         .add_plugins(DefaultPlugins)
-        .add_plugin(PlayerPlugin)
-        .add_plugin(PhysicsPlugin::default())
-        .insert_resource(MovementSettings {
-            sensitivity: 0.3, // default: 1.0
-            accel: 20.0,      // default: 40.0
-            drag: 0.01,       // default: 0.0005
-            gravity: 10.0,    // default: 10.0
-        })
-        .add_startup_system(setup.label("world"))
-        .add_startup_system(disable_cursor.after("world"))
-        .add_system(animate_lights)
+        .add_plugin(CyberGeomPlugin)
+        .add_plugin(CyberInputPlugin)
+        .add_plugin(CyberPhysicsPlugin)
+        .insert_resource(MOVEMENT_SETTINGS)
+        .add_plugin(CyberCamPlugin)
+        .add_plugin(CyberSpaceLightsPlugin)
+        .add_plugin(CyberUIPlugin)
+        .add_startup_system(disable_mouse_trap)
         .add_system(bevy::input::system::exit_on_esc_system)
         .run();
 }
-
-fn disable_cursor(mut windows: ResMut<Windows>) {
-    let window = windows.get_primary_mut().unwrap();
-    window.set_cursor_lock_mode(false);
-    window.set_cursor_visibility(true);
-}
-
-#[derive(Component)]
-struct Animate;
-
-fn setup(
-    mut commands: Commands,
-    mut meshes: ResMut<Assets<Mesh>>,
-    mut materials: ResMut<Assets<StandardMaterial>>,
-) {
-    let red_light = PointLight {
-        intensity: 1_000.0,
-        range: LIGHT_RANGE,
-        color: Color::RED,
-        radius: 10.0,
-        ..Default::default()
-    };
-
-    let blue_light = PointLight {
-        intensity: 1_000.0,
-        range: LIGHT_RANGE,
-        color: Color::BLUE,
-        radius: 10.0,
-        ..Default::default()
-    };
-
-    let purple_light = PointLight {
-        intensity: 1_000.0,
-        range: LIGHT_RANGE,
-        color: Color::PURPLE,
-        radius: 10.0,
-        ..Default::default()
-    };
-
-    commands.insert_resource(AmbientLight {
-        color: Color::WHITE,
-        brightness: 0.32,
-    });
-
-    // world
-    commands
-        .spawn_bundle(PbrBundle {
-            mesh: meshes.add(Mesh::from(shape::Icosphere {
-                radius: PLANET_RADIUS,
-                subdivisions: 6,
-            })),
-            material: materials.add(StandardMaterial {
-                base_color: Color::GRAY,
-                metallic: 0.7,
-                perceptual_roughness: 0.5,
-                ..Default::default()
-            }),
-
-            ..Default::default()
-        })
-        .insert(RigidBody::Static)
-        .insert(CollisionShape::Sphere {
-            radius: PLANET_RADIUS,
-        });
-
-    // east light
-    commands
-        .spawn_bundle(PointLightBundle {
-            transform: Transform::from_xyz(LIGHT_DIST, 0.0, 0.0),
-            point_light: purple_light,
-            ..Default::default()
-        })
-        .with_children(|builder| {
-            builder.spawn_bundle(PbrBundle {
-                mesh: meshes.add(Mesh::from(shape::UVSphere {
-                    radius: 10.0,
-                    ..Default::default()
-                })),
-                material: materials.add(StandardMaterial {
-                    base_color: Color::PURPLE,
-                    emissive: Color::rgba_linear(50.0, 0.0, 50.0, 0.0),
-                    ..Default::default()
-                }),
-                ..Default::default()
-            });
-        })
-        .insert(Animate);
-
-    // west light
-    commands
-        .spawn_bundle(PointLightBundle {
-            transform: Transform::from_xyz(-LIGHT_DIST, 0.0, 0.0),
-            point_light: purple_light,
-            ..Default::default()
-        })
-        .with_children(|builder| {
-            builder.spawn_bundle(PbrBundle {
-                mesh: meshes.add(Mesh::from(shape::UVSphere {
-                    radius: 10.0,
-                    ..Default::default()
-                })),
-                material: materials.add(StandardMaterial {
-                    base_color: Color::PURPLE,
-                    emissive: Color::rgba_linear(50.0, 0.0, 50.0, 0.0),
-                    ..Default::default()
-                }),
-                ..Default::default()
-            });
-        })
-        .insert(Animate);
-    // north light
-    commands
-        .spawn_bundle(PointLightBundle {
-            transform: Transform::from_xyz(0.0, 0.0, LIGHT_DIST),
-            point_light: purple_light,
-            ..Default::default()
-        })
-        .with_children(|builder| {
-            builder.spawn_bundle(PbrBundle {
-                mesh: meshes.add(Mesh::from(shape::UVSphere {
-                    radius: 10.0,
-                    ..Default::default()
-                })),
-                material: materials.add(StandardMaterial {
-                    base_color: Color::PURPLE,
-                    emissive: Color::rgba_linear(50.0, 0.0, 50.0, 0.0),
-                    ..Default::default()
-                }),
-                ..Default::default()
-            });
-        })
-        .insert(Animate);
-    // south light
-    commands
-        .spawn_bundle(PointLightBundle {
-            transform: Transform::from_xyz(0.0, 0.0, -LIGHT_DIST),
-            point_light: purple_light,
-            ..Default::default()
-        })
-        .with_children(|builder| {
-            builder.spawn_bundle(PbrBundle {
-                mesh: meshes.add(Mesh::from(shape::UVSphere {
-                    radius: 10.0,
-                    ..Default::default()
-                })),
-                material: materials.add(StandardMaterial {
-                    base_color: Color::PURPLE,
-                    emissive: Color::rgba_linear(50.0, 0.0, 50.0, 0.0),
-                    ..Default::default()
-                }),
-                ..Default::default()
-            });
-        })
-        .insert(Animate);
-    // up light
-    commands
-        .spawn_bundle(PointLightBundle {
-            transform: Transform::from_xyz(0.0, LIGHT_DIST, 0.0),
-            point_light: red_light,
-            ..Default::default()
-        })
-        .with_children(|builder| {
-            builder.spawn_bundle(PbrBundle {
-                mesh: meshes.add(Mesh::from(shape::Icosphere {
-                    radius: 10.0,
-                    subdivisions: 2,
-                })),
-                material: materials.add(StandardMaterial {
-                    base_color: Color::RED,
-                    emissive: Color::rgba_linear(100.0, 0.0, 0.0, 0.0),
-                    ..Default::default()
-                }),
-                ..Default::default()
-            });
-        });
-    // down light
-    commands
-        .spawn_bundle(PointLightBundle {
-            transform: Transform::from_xyz(0.0, -LIGHT_DIST, 0.0),
-            point_light: blue_light,
-            ..Default::default()
-        })
-        .with_children(|builder| {
-            builder.spawn_bundle(PbrBundle {
-                mesh: meshes.add(Mesh::from(shape::Icosphere {
-                    radius: 10.0,
-                    subdivisions: 2,
-                })),
-                material: materials.add(StandardMaterial {
-                    base_color: Color::BLUE,
-                    emissive: Color::rgba_linear(0.0, 0.0, 100.0, 0.0),
-                    ..Default::default()
-                }),
-                ..Default::default()
-            });
-        });
-}
-
-fn animate_lights(
-    time: Res<Time>,
-    mut query: Query<&mut Transform, (With<PointLight>, With<Animate>)>,
-) {
-    let dt = time.delta_seconds();
-    for mut transform in query.iter_mut() {
-        let translation = &transform.translation;
-        let x = translation.x;
-        let y = translation.y;
-        let z = if translation.z.abs() < 0.1 {
-            translation.z + 0.15
-        } else {
-            translation.z
-        };
-
-        // 10 degrees == 0.174533 radians
-        let anim_rate = 0.174533 * dt;
-        let theta = z.atan2(x) + anim_rate;
-        let x_new = LIGHT_DIST * theta.cos();
-        let z_new = LIGHT_DIST * theta.sin();
-
-        *transform = Transform::from_xyz(x_new, y, z_new);
-    }
-}
diff --git a/src/physics.rs b/src/physics.rs
new file mode 100644
index 0000000..3814b41
--- /dev/null
+++ b/src/physics.rs
@@ -0,0 +1,161 @@
+use bevy::prelude::*;
+use heron::prelude::*;
+
+use crate::{geometry::CyberBike, input::InputState};
+
+/// Mouse sensitivity and movement speed
+pub struct MovementSettings {
+    pub sensitivity: f32,
+    pub accel: f32,
+    pub drag: f32,
+    pub gravity: f32,
+}
+
+impl Default for MovementSettings {
+    fn default() -> Self {
+        Self {
+            sensitivity: 1.0,
+            accel: 40.,
+            drag: 0.0005,
+            gravity: 10.0,
+        }
+    }
+}
+
+#[derive(Component, Default)]
+pub(crate) struct PlayerState {
+    pub velocity: Vec3,
+    pub colliding: bool,
+}
+
+fn falling_cat(time: Res<Time>, mut bike_query: Query<(&mut Transform, &CyberBike)>) {
+    let dt = time.delta_seconds();
+
+    let (mut bike_xform, _) = bike_query.single_mut();
+    let up = bike_xform.translation.normalize();
+    let cam_up = bike_xform.up();
+    let cos = up.dot(cam_up);
+
+    let theta = cos.acos();
+    let rate = if !theta.is_normal() {
+        0.0
+    } else if theta.is_sign_negative() {
+        -0.4
+    } else {
+        0.4
+    } * dt;
+    let angle = if rate.is_sign_negative() {
+        rate.max(theta)
+    } else {
+        rate.min(theta)
+    };
+
+    let rot = Quat::from_axis_angle(cam_up.cross(up).normalize(), angle);
+
+    if rot.is_finite() && theta.abs() > 0.0085 {
+        bike_xform.rotate(rot);
+    }
+}
+
+fn apply_velocity(
+    time: Res<Time>,
+    mut bike_query: Query<(&mut Transform, &PlayerState, &CyberBike)>,
+) {
+    let dt = time.delta_seconds();
+
+    let (mut bike_xform, player_state, _) = bike_query.single_mut();
+
+    if player_state.velocity.is_finite() {
+        bike_xform.translation += player_state.velocity * dt;
+    }
+}
+
+fn update_player_vel(
+    time: Res<Time>,
+    settings: Res<MovementSettings>,
+    input: Res<InputState>,
+    mut query: Query<(&Transform, &mut PlayerState, &CyberBike)>,
+) {
+    let dt = time.delta_seconds();
+    let (xform, mut pstate, _) = query.single_mut();
+
+    // first gravity
+    let down = -xform.translation.normalize();
+    let dvel = down * settings.gravity * dt;
+    let mut vel = if pstate.velocity.is_finite() {
+        pstate.velocity + dvel
+    } else {
+        dvel
+    };
+
+    // thrust or brake
+    let accel = xform.forward() * input.throttle * dt * settings.accel;
+    if pstate.velocity.is_finite() {
+        vel += accel;
+    } else {
+        vel = accel;
+    }
+
+    // brake
+    if input.brake {
+        let s = vel.length_squared();
+        if s < 0.05 {
+            vel = Vec3::ZERO;
+        } else {
+            vel -= vel.normalize() * settings.accel * dt;
+        }
+    }
+
+    // drag
+    let v2 = vel.length_squared().min(100_000.0);
+    if v2 < 0.05 {
+        vel = Vec3::ZERO;
+    } else {
+        let drag = vel * settings.drag * v2 * dt;
+        vel -= drag;
+    }
+
+    pstate.velocity = vel;
+}
+
+fn collision_detection(
+    mut events: EventReader<CollisionEvent>,
+    mut query: Query<&mut PlayerState>,
+) {
+    let mut pstate = query.single_mut();
+
+    for event in events.iter() {
+        if let CollisionEvent::Started(_, _) = event {
+            pstate.colliding = true;
+        } else {
+            pstate.colliding = false;
+        }
+    }
+}
+
+fn collision_reaction(mut query: Query<(&mut PlayerState, &Transform)>) {
+    let (mut pstate, xform) = query.single_mut();
+
+    let down = -xform.translation.normalize();
+
+    // now see if we're currently colliding
+    if pstate.colliding {
+        let vel = pstate.velocity;
+        let dvel = down * vel.dot(down) * 1.02;
+        pstate.velocity -= dvel;
+    }
+}
+
+pub struct CyberPhysicsPlugin;
+impl Plugin for CyberPhysicsPlugin {
+    fn build(&self, app: &mut App) {
+        app.init_resource::<PlayerState>()
+            .init_resource::<MovementSettings>()
+            .add_plugin(PhysicsPlugin::default())
+            .add_system(collision_detection)
+            .add_system(collision_reaction)
+            .add_system(falling_cat)
+            .add_system(update_player_vel)
+            .add_system(apply_velocity);
+    }
+}
diff --git a/src/ui.rs b/src/ui.rs
new file mode 100644
index 0000000..5a998f6
--- /dev/null
+++ b/src/ui.rs
@@ -0,0 +1,47 @@
+use bevy::prelude::*;
+
+use crate::physics::PlayerState;
+
+#[derive(Component)]
+struct UpText;
+
+fn setup_ui(mut commands: Commands, asset_server: Res<AssetServer>) {
+    commands.spawn_bundle(UiCameraBundle::default());
+
+    commands
+        .spawn_bundle(TextBundle {
+            style: Style {
+                align_self: AlignSelf::FlexEnd,
+                ..Default::default()
+            },
+            // Use `Text` directly
+            text: Text {
+                // Construct a `Vec` of `TextSection`s
+                sections: vec![TextSection {
+                    value: "".to_string(),
+                    style: TextStyle {
+                        font: asset_server.load("fonts/FiraMono-Medium.ttf"),
+                        font_size: 40.0,
+                        color: Color::GOLD,
+                    },
+                }],
+                ..Default::default()
+            },
+            ..Default::default()
+        })
+        .insert(UpText);
+}
+
+fn update_ui(pstate_query: Query<&PlayerState>, mut text_query: Query<&mut Text, With<UpText>>) {
+    let mut text = text_query.single_mut();
+    let pstate = pstate_query.single();
+    text.sections[0].value = format!("{:.2}", pstate.velocity.length());
+}
+
+pub struct CyberUIPlugin;
+
+impl Plugin for CyberUIPlugin {
+    fn build(&self, app: &mut App) {
+        app.add_startup_system(setup_ui).add_system(update_ui);
+    }
+}