screw alpha, just move it out of the way... also tad faster scroll

src/kneeboardplugin.rs

@@ -16,6 +16,9 @@ use crate::{
     vrplugin::{Headset, MainCamera, create_view_space},
 };
 
+#[derive(Component)]
+pub struct LookedAt;
+
 #[derive(Component)]
 pub struct Kneeboard;
 
@@ -88,23 +91,32 @@ fn scroll_handler(
         return;
     };
 
-    let delta = Vec2::new(thumbstick.current_state.x, thumbstick.current_state.y) * 8.0;
+    let delta = Vec2::new(thumbstick.current_state.x, thumbstick.current_state.y) * 12.0;
 
     for webview in webviews.iter() {
         browsers.send_mouse_wheel(&webview, Vec2::ZERO, delta);
     }
 }
 
+#[allow(clippy::type_complexity)]
 fn position_kneeboard(
-    mut transform: Query<&mut Transform, With<Kneeboard>>,
+    mut transform: Query<(&mut Transform, Option<&LookedAt>), (With<Kneeboard>, Without<Headset>)>,
     kneeboard: Res<KneeboardPosition>,
+    head: Query<&Transform, (With<Headset>, Without<Kneeboard>)>,
 ) {
-    let Ok(mut transform) = transform.single_mut() else {
+    let Ok((mut transform, looked_at)) = transform.single_mut() else {
         return;
     };
 
+    let head = head.single().expect("a head to exist");
+
     transform.translation = kneeboard.position;
     transform.rotation = kneeboard.rotation;
+
+    if looked_at.is_some() {
+        transform.translation = head.translation;
+        transform.rotation = head.rotation;
+    }
 }
 
 fn move_keyboard(
@@ -170,28 +182,21 @@ fn spawn_kneeboard(
 }
 
 fn gaze(
-    material_handles: Query<&MeshMaterial3d<WebviewExtendStandardMaterial>, With<Kneeboard>>,
+    mut commands: Commands,
-    mut materials: ResMut<Assets<WebviewExtendStandardMaterial>>,
     position: Res<KneeboardPosition>,
-    head_query: Query<&Transform, With<Headset>>,
+    kneeboard: Query<Entity, With<Kneeboard>>,
+    head: Query<&Transform, With<Headset>>,
 ) {
-    let head = head_query.single().expect("a head to exist");
+    let head = head.single().expect("a head to exist");
+    let kneeboard = kneeboard.single().expect("a kneeboard to exist");
 
     let facing = head.forward().normalize();
     let to_target = (position.position - head.translation).normalize();
     let dot = facing.dot(to_target);
     let cos_fov_angle: f32 = (35.0f32 / 2.0f32).to_radians().cos();
 
-    let mut alpha = 1.0;
+    commands.entity(kneeboard).remove::<LookedAt>();
     if dot < cos_fov_angle {
-        alpha = 0.0;
+        commands.entity(kneeboard).insert(LookedAt);
-    }
-
-    for material_handle in material_handles.iter() {
-        if let Some(material) = materials.get_mut(material_handle)
-            && let Color::LinearRgba(ref mut rgba) = material.base.base_color
-        {
-            rgba.alpha = alpha;
-        }
     }
 }