Sync head orientation, add simple player visuals

client/src/assets/mod.rs

@@ -7,7 +7,9 @@
 use bevy::prelude::*;
 
 mod block;
+mod player;
 
 pub fn plugin(app: &mut App) {
     app.add_plugins(block::plugin);
+    app.add_plugins(player::plugin);
 }

client/src/assets/player.rs

@@ -0,0 +1,38 @@
+use bevy::prelude::*;
+use common::prelude::*;
+
+pub fn plugin(app: &mut App) {
+    app.load_resource::<PlayerAssets>();
+    app.add_observer(insert_player_visuals);
+}
+
+#[derive(Resource, Asset, Reflect, Clone)]
+#[reflect(Resource)]
+pub struct PlayerAssets {
+    #[dependency]
+    mesh: Handle<Mesh>,
+    #[dependency]
+    material: Handle<StandardMaterial>,
+}
+
+impl FromWorld for PlayerAssets {
+    fn from_world(world: &mut World) -> Self {
+        let assets = world.resource::<AssetServer>();
+        Self {
+            mesh: assets.add(Cuboid::new(1.0, 1.0, 1.0).into()),
+            material: assets.add(Color::srgb_u8(124, 255, 144).into()),
+        }
+    }
+}
+
+fn insert_player_visuals(
+    event: On<Add, Player>,
+    mut commands: Commands,
+    block_assets: Res<PlayerAssets>,
+) {
+    let player = event.entity;
+    commands.entity(player).insert((
+        Mesh3d(block_assets.mesh.clone()),
+        MeshMaterial3d(block_assets.material.clone()),
+    ));
+}

client/src/camera.rs

@@ -1,56 +0,0 @@
-use std::f32::consts::TAU;
-
-use bevy::prelude::*;
-
-use bevy::input::mouse::AccumulatedMouseMotion;
-
-#[derive(Component, Debug)]
-pub struct CameraFreeLook {
-    /// The mouse sensitivity, in radians per pixel.
-    pub sensitivity: Vec2,
-    /// How far the camera can be tilted up and down.
-    pub pitch_limit: std::ops::RangeInclusive<f32>,
-
-    /// Upon initialization, `pitch` and `yaw` will
-    /// be set from the camera transform's rotation.
-    initialized: bool,
-    /// The current yaw (right/left) of the camera, in radians.
-    pub yaw: f32,
-    /// The current pitch (tilt) of the camera, in radians.
-    pub pitch: f32,
-}
-
-impl Default for CameraFreeLook {
-    fn default() -> Self {
-        Self {
-            sensitivity: Vec2::splat(0.2).map(f32::to_radians),
-            pitch_limit: -(TAU / 4.0)..=(TAU / 4.0),
-            initialized: false,
-            yaw: 0.0,
-            pitch: 0.0,
-        }
-    }
-}
-
-pub fn camera_look(
-    accumulated_mouse_motion: Res<AccumulatedMouseMotion>,
-    camera: Single<(&mut Transform, &mut CameraFreeLook)>,
-) {
-    let (mut transform, mut look) = camera.into_inner();
-
-    // Ensure the yaw and pitch are initialized once
-    // from the camera transform's current rotation.
-    if !look.initialized {
-        (look.yaw, look.pitch, _) = transform.rotation.to_euler(EulerRot::YXZ);
-        look.initialized = true;
-    }
-
-    // Update the current camera state's internal yaw and pitch.
-    let motion = accumulated_mouse_motion.delta * look.sensitivity;
-    let (min, max) = look.pitch_limit.clone().into_inner();
-    look.yaw = (look.yaw - motion.x).rem_euclid(TAU); // keep within 0°..360°
-    look.pitch = (look.pitch - motion.y).clamp(min, max);
-
-    // Override the camera transform's rotation.
-    transform.rotation = Quat::from_euler(EulerRot::ZYX, 0.0, look.yaw, look.pitch);
-}

client/src/input/client_inputs.rs

@@ -1,5 +1,5 @@
 //! Handles client-side input using [`lightyear`], updating the
-//! [`ActionState`] of the affected entities (such as the `Player`).
+//! [`ActionState`] of the affected entities, such as the `Player`.
 
 use bevy::prelude::*;
 use common::prelude::*;
@@ -8,8 +8,6 @@ use lightyear::prelude::input::native::*;
 
 use bevy::window::{CursorGrabMode, CursorOptions};
 
-use crate::camera::CameraFreeLook;
-
 pub fn plugin(app: &mut App) {
     app.add_systems(
         FixedPreUpdate,
@@ -18,27 +16,30 @@ pub fn plugin(app: &mut App) {
 }
 
 fn buffer_input(
-    key_input: Res<ButtonInput<KeyCode>>,
-    mut action_state: Single<&mut ActionState<Inputs>, With<InputMarker<Inputs>>>,
+    keys: Res<ButtonInput<KeyCode>>,
+    player: Single<(&mut ActionState<Inputs>, &HeadOrientation), With<InputMarker<Inputs>>>,
     cursor: Single<&CursorOptions>,
-    camera: Single<&CameraFreeLook>,
 ) {
-    action_state.0 = if cursor.grab_mode == CursorGrabMode::None {
-        // If cursor is not grabbed, reset movement input.
-        Default::default()
+    let (mut inputs, orientation) = player.into_inner();
+    inputs.0 = if cursor.grab_mode == CursorGrabMode::None {
+        Inputs {
+            look: *orientation,
+            ..default()
+        }
     } else {
         Inputs {
+            look: *orientation,
             #[rustfmt::skip]
             movement: {
                 let mut movement = Vec2::ZERO;
-                if key_input.pressed(KeyCode::KeyD) { movement.x += 1.0; }
-                if key_input.pressed(KeyCode::KeyA) { movement.x -= 1.0; }
-                if key_input.pressed(KeyCode::KeyS) { movement.y += 1.0; }
-                if key_input.pressed(KeyCode::KeyW) { movement.y -= 1.0; }
-                Rot2::radians(-camera.yaw) * movement.clamp_length_max(1.0)
+                if keys.pressed(KeyCode::KeyD) { movement.x += 1.0; }
+                if keys.pressed(KeyCode::KeyA) { movement.x -= 1.0; }
+                if keys.pressed(KeyCode::KeyS) { movement.y += 1.0; }
+                if keys.pressed(KeyCode::KeyW) { movement.y -= 1.0; }
+                movement.clamp_length_max(1.0)
             },
-            up: key_input.pressed(KeyCode::Space),
-            down: key_input.pressed(KeyCode::ShiftLeft),
+            up: keys.pressed(KeyCode::Space),
+            down: keys.pressed(KeyCode::ShiftLeft),
         }
-    };
+    }
 }

client/src/input/head_orientation.rs

@@ -0,0 +1,30 @@
+use bevy::prelude::*;
+use common::prelude::*;
+use lightyear::prelude::input::native::*;
+
+use bevy::input::mouse::AccumulatedMouseMotion;
+
+use crate::input::is_cursor_grabbed;
+
+#[derive(Resource, Deref, DerefMut, Debug)]
+pub struct MouseSensitivity(Vec2);
+
+impl Default for MouseSensitivity {
+    fn default() -> Self {
+        Self(Vec2::splat(0.2).map(f32::to_radians))
+    }
+}
+
+pub fn plugin(app: &mut App) {
+    app.init_resource::<MouseSensitivity>();
+    app.add_systems(Update, update_head_orientation.run_if(is_cursor_grabbed));
+}
+
+fn update_head_orientation(
+    accumulated_mouse_motion: Res<AccumulatedMouseMotion>,
+    mouse_sensitivity: Res<MouseSensitivity>,
+    mut orientation: Single<&mut HeadOrientation, With<InputMarker<Inputs>>>,
+) {
+    let delta = accumulated_mouse_motion.delta * **mouse_sensitivity;
+    **orientation = orientation.update(delta);
+}

client/src/input/mod.rs

@@ -2,9 +2,14 @@ use bevy::prelude::*;
 
 mod client_inputs;
 mod cursor_grab;
+mod head_orientation;
 
 pub use cursor_grab::is_cursor_grabbed;
 
 pub fn plugin(app: &mut App) {
-    app.add_plugins((client_inputs::plugin, cursor_grab::plugin));
+    app.add_plugins((
+        client_inputs::plugin,
+        cursor_grab::plugin,
+        head_orientation::plugin,
+    ));
 }

client/src/main.rs

@@ -10,13 +10,11 @@ use lightyear::prelude::server::Started;
 
 mod args;
 mod assets;
-mod camera;
 mod input;
 mod placement;
 mod ui;
 
 use args::*;
-use camera::*;
 use placement::*;
 
 use input::is_cursor_grabbed;
@@ -31,6 +29,9 @@ fn main() -> Result {
     let args = Args::parse();
     let mut app = App::new();
 
+    app.insert_resource(args);
+    app.insert_state(Screen::Loading);
+
     app.add_plugins(
         DefaultPlugins
             .set(WindowPlugin {
@@ -63,17 +64,11 @@ fn main() -> Result {
         ui::plugin,
     ));
 
-    app.insert_resource(args);
-    app.insert_state(Screen::Loading);
-
     app.add_systems(
         OnEnter(Screen::Gameplay),
         (setup_scene, start_server_or_connect),
     );
 
-    // TODO: Create and configure `SystemSet`s for gameplay, etc.
-    app.add_systems(Update, camera_look.run_if(is_cursor_grabbed));
-
     // `place_break_blocks` requires the camera's `GlobalTransform`.
     // For a most up-to-date value, run it after that's been updated.
     app.add_systems(
@@ -132,10 +127,10 @@ fn spawn_initial_blocks(_event: On<Add, Started>, mut blocks: Blocks) {
 /// When the `Predicted` player we control is being spawned, insert necessary components.
 fn handle_predicted_player_spawn(event: On<Add, Predicted>, mut commands: Commands) {
     let player = event.entity;
-    commands
-        .entity(player)
+    commands.entity(player).insert((
         // Handle inputs on this entity.
-        .insert(InputMarker::<Inputs>::default())
-        // Add a camera that can be freely rotated.
-        .with_child((Camera3d::default(), CameraFreeLook::default()));
+        InputMarker::<Inputs>::default(),
+        // TODO: Attach camera to player head eventually.
+        Camera3d::default(),
+    ));
 }

common/src/network/protocol.rs

@@ -6,7 +6,7 @@ use lightyear::input::native::plugin::InputPlugin;
 use serde::{Deserialize, Serialize};
 
 use crate::block::Block;
-use crate::player::Player;
+use crate::player::{HeadOrientation, Player};
 
 pub(super) fn plugin(app: &mut App) {
     app.add_plugins(InputPlugin::<Inputs>::default());
@@ -25,6 +25,7 @@ pub(super) fn plugin(app: &mut App) {
 
 #[derive(Default, Deserialize, Serialize, Reflect, Clone, PartialEq, Debug)]
 pub struct Inputs {
+    pub look: HeadOrientation,
     pub movement: Vec2,
     pub up: bool,
     pub down: bool,

common/src/player.rs

@@ -1,3 +1,5 @@
+use std::f32::consts::{PI, TAU};
+
 use bevy::prelude::*;
 use lightyear::prelude::*;
 
@@ -7,34 +9,87 @@ use serde::{Deserialize, Serialize};
 use crate::network::protocol::Inputs;
 
 const MOVEMENT_SPEED: f32 = 5.0;
+const PITCH_LIMIT: f32 = TAU / 4.0;
 
-#[derive(Component, PartialEq, Deserialize, Serialize)]
-#[require(Transform)]
+#[derive(Component, Deserialize, Serialize, PartialEq)]
+#[require(Transform, HeadOrientation)]
 pub struct Player;
 
+#[derive(Component, Deserialize, Serialize, Reflect, Default, Clone, Copy, PartialEq, Debug)]
+#[serde(from = "HeadOrientationUnchecked")]
+pub struct HeadOrientation {
+    yaw: f32,
+    pitch: f32,
+}
+
+impl HeadOrientation {
+    pub fn new(yaw: f32, pitch: f32) -> Self {
+        Self {
+            yaw: (yaw + PI).rem_euclid(TAU) - PI,
+            pitch: pitch.clamp(-PITCH_LIMIT, PITCH_LIMIT),
+        }
+    }
+
+    pub fn yaw(&self) -> f32 {
+        self.yaw
+    }
+
+    pub fn pitch(&self) -> f32 {
+        self.pitch
+    }
+
+    pub fn update(&self, motion: Vec2) -> Self {
+        Self::new(self.yaw - motion.x, self.pitch - motion.y)
+    }
+
+    pub fn to_quat(&self) -> Quat {
+        Quat::from_euler(EulerRot::ZYX, 0.0, self.yaw, self.pitch)
+    }
+}
+
+#[derive(Deserialize)]
+#[serde(rename = "HeadOrientation")]
+struct HeadOrientationUnchecked {
+    yaw: f32,
+    pitch: f32,
+}
+
+impl From<HeadOrientationUnchecked> for HeadOrientation {
+    fn from(value: HeadOrientationUnchecked) -> Self {
+        Self::new(value.yaw, value.pitch)
+    }
+}
+
 pub fn movement(
     time: Res<Time<Fixed>>,
     mut players: Query<
-        (&mut Transform, &ActionState<Inputs>),
-        // Must be a `Player` which is either be `ControlledBy` a remote
-        // client (server-side) or its movement `Predicted` on the client.
+        (&mut Transform, &mut HeadOrientation, &ActionState<Inputs>),
+        // Must be a `Player` which is either be `ControlledBy` a
+        // remote client (server-side) or `Predicted` on the client.
         (With<Player>, Or<(With<ControlledBy>, With<Predicted>)>),
     >,
 ) {
-    for (mut transform, input) in players.iter_mut() {
+    for (mut transform, mut orientation, inputs) in players.iter_mut() {
+        *orientation = inputs.look;
+
         let dt = time.delta_secs();
         let mut translation = Vec3::ZERO;
-        if input.movement != Vec2::ZERO {
-            let movement = input.movement.clamp_length_max(1.0);
+        if inputs.movement != Vec2::ZERO {
+            let rotation = Rot2::radians(-orientation.yaw());
+            let movement = rotation * inputs.movement.clamp_length_max(1.0);
             translation.x += movement.x;
             translation.z += movement.y;
         }
-        if input.up {
+        if inputs.up {
             translation.y += 1.0;
         }
-        if input.down {
+        if inputs.down {
             translation.y -= 1.0;
         }
+
         transform.translation += translation * MOVEMENT_SPEED * dt;
+
+        // TODO: Should affect camera/head rotation only, not the entire player.
+        transform.rotation = orientation.to_quat();
     }
 }