some cleanup, do cargo fmt

.rustfmt.toml

@@ -0,0 +1,5 @@
+tab_spaces = 2
+edition="2018"
+imports_layout="HorizontalVertical"
+merge_imports=true
+reorder_imports=true

src/main.rs

@@ -1,14 +1,20 @@
 use bevy::prelude::*;
-use rake::player::Player;
-use rake::player::PlayerPlugin;
-use std::process::exit;
+use rake::player::{Player, PlayerPlugin};
 
 fn main() {
   App::build()
     .add_resource(Msaa { samples: 4 })
+    .add_resource(WindowDescriptor {
+      title: "Rake".to_string(),
+      width: 960.,
+      height: 540.,
+      ..Default::default()
+    })
     .add_plugins(DefaultPlugins)
-    .add_startup_system(init.system())
+    // note: debug renderer doesnt work for cylinder
+    //.add_plugin(RapierRenderPlugin)
     .add_plugin(PlayerPlugin)
+    .add_startup_system(init.system())
     .add_system(exit_game_system.system())
     .run();
 }
@@ -18,13 +24,17 @@ fn init(
   mut meshes: ResMut<Assets<Mesh>>,
   mut materials: ResMut<Assets<StandardMaterial>>,
 ) {
+  let player = Player::create();
   commands
     .spawn(LightBundle {
       transform: Transform::from_translation(Vec3::new(4.0, 8.0, 4.0)),
       ..Default::default()
     })
-    .spawn(Camera3dBundle::default())
-    .with(Player::default());
+    .spawn(Camera3dBundle {
+      transform: Transform::from_translation(Vec3::new(0.0, 3.0, 3.0)),
+      ..Default::default()
+    })
+    .with(player);
 
   let box_mesh = meshes.add(Mesh::from(shape::Cube { size: 0.25 }));
   let box_material = materials.add(Color::rgb(1.0, 0.2, 0.3).into());
@@ -36,9 +46,7 @@ fn init(
         commands.spawn(PbrBundle {
           mesh: box_mesh.clone(),
           material: box_material.clone(),
-          transform: Transform::from_translation(Vec3::new(
-            x as f32, y as f32, z as f32,
-          )),
+          transform: Transform::from_translation(Vec3::new(x as f32, y as f32, z as f32)),
           ..Default::default()
         });
       }
@@ -49,13 +57,16 @@ fn init(
   commands.spawn(PbrBundle {
     mesh: meshes.add(Mesh::from(shape::Plane { size: 10. })),
     material: materials.add(Color::rgb(0.5, 0.9, 0.9).into()),
-    transform: Transform::from_translation(Vec3::new(0.0, -3.0, 0.0)),
+    transform: Transform::from_translation(Vec3::new(0.0, 0.2, 0.0)),
     ..Default::default()
   });
 }
 
-fn exit_game_system(keyboard_input: Res<Input<KeyCode>>) {
+fn exit_game_system(
+  keyboard_input: Res<Input<KeyCode>>,
+  mut app_exit_events: ResMut<Events<bevy::app::AppExit>>,
+) {
   if keyboard_input.pressed(KeyCode::Escape) {
-    exit(0);
+    app_exit_events.send(bevy::app::AppExit);
   }
 }

src/player.rs

@@ -14,8 +14,9 @@ pub struct Player {
   /// The current velocity of the FlyCamera. This value is always up-to-date, enforced by [FlyCameraPlugin](struct.FlyCameraPlugin.html)
   pub velocity: Vec3,
 }
-impl Default for Player {
-  fn default() -> Self {
+
+impl Player {
+  pub fn create() -> Self {
     Self {
       speed: 1.5,
       sensitivity: 6.0,
@@ -31,24 +32,16 @@ fn forward_vector(rotation: &Quat) -> Vec3 {
   rotation.mul_vec3(Vec3::unit_z()).normalize()
 }
 
-fn forward_walk_vector(rotation: &Quat) -> Vec3 {
+fn strafe_vector(rotation: &Quat) -> Vec3 {
   let f = forward_vector(rotation);
   let f_flattened = Vec3::new(f.x, 0.0, f.z).normalize();
-  f_flattened
-}
-
-fn strafe_vector(rotation: &Quat) -> Vec3 {
   // Rotate it 90 degrees to get the strafe direction
   Quat::from_rotation_y(90.0f32.to_radians())
-    .mul_vec3(forward_walk_vector(rotation))
+    .mul_vec3(f_flattened)
     .normalize()
 }
 
-fn movement_axis(
-  input: &Res<Input<KeyCode>>,
-  plus: KeyCode,
-  minus: KeyCode,
-) -> f32 {
+fn movement_axis(input: &Res<Input<KeyCode>>, plus: KeyCode, minus: KeyCode) -> f32 {
   let mut axis = 0.0;
   if input.pressed(plus) {
     axis += 1.0;
@@ -64,45 +57,40 @@ fn camera_movement_system(
   keyboard_input: Res<Input<KeyCode>>,
   mut query: Query<(&mut Player, &mut Transform)>,
 ) {
-  for (mut options, mut transform) in query.iter_mut() {
-    let (axis_h, axis_v, axis_float) = (movement_axis(&keyboard_input, KeyCode::D, KeyCode::A),
-        movement_axis(
-          &keyboard_input,
-          KeyCode::S,
-          KeyCode::W,
-        ),
-        movement_axis(&keyboard_input, KeyCode::Space, KeyCode::LControl),
-      );
+  for (mut player, mut transform) in query.iter_mut() {
+    let (axis_h, axis_v, axis_float) = (
+      movement_axis(&keyboard_input, KeyCode::D, KeyCode::A),
+      movement_axis(&keyboard_input, KeyCode::S, KeyCode::W),
+      movement_axis(&keyboard_input, KeyCode::Space, KeyCode::LControl),
+    );
 
     let rotation = transform.rotation;
     let accel: Vec3 = (strafe_vector(&rotation) * axis_h)
       + (forward_vector(&rotation) * axis_v)
       + (Vec3::unit_y() * axis_float);
     let accel: Vec3 = if accel.length() != 0.0 {
-      accel.normalize() * options.speed
+      accel.normalize() * player.speed
     } else {
       Vec3::zero()
     };
 
-    let friction: Vec3 = if options.velocity.length() != 0.0 {
-      options.velocity.normalize() * -1.0 * options.friction
+    let friction: Vec3 = if player.velocity.length() != 0.0 {
+      player.velocity.normalize() * -1.0 * player.friction
     } else {
       Vec3::zero()
     };
 
-    options.velocity += accel * time.delta_seconds();
+    player.velocity += accel * time.delta_seconds();
 
     let delta_friction = friction * time.delta_seconds();
 
-    options.velocity = if (options.velocity + delta_friction).signum()
-      != options.velocity.signum()
-    {
+    player.velocity = if (player.velocity + delta_friction).signum() != player.velocity.signum() {
       Vec3::zero()
     } else {
-      options.velocity + delta_friction
+      player.velocity + delta_friction
     };
 
-    transform.translation += options.velocity;
+    transform.translation += player.velocity;
   }
 }