better global state structure?

src/default/sense.rs

@@ -142,10 +142,10 @@ pub trait SensorUi<State> {
     fn run_sensors(&mut self, cursor: &CursorState, window_size: Vec2);
 }
 
-impl<State: 'static + HasRsc> SensorUi<State> for State {
+impl<State: RunEvents> SensorUi<State> for State {
     fn run_sensors(&mut self, cursor: &CursorState, window_size: Vec2) {
-        let layers = std::mem::take(&mut self.ui().layers);
-        let mut active = std::mem::take(&mut self.events().get_type::<CursorSense>().active);
+        let layers = std::mem::take(&mut self.ui_mut().layers);
+        let mut active = std::mem::take(&mut self.events_mut().get_type::<CursorSense>().active);
         for layer in layers.indices().rev() {
             let mut sensed = false;
             for (id, sensor) in active.get_mut(&layer).into_iter().flatten() {
@@ -174,8 +174,8 @@ impl<State: 'static + HasRsc> SensorUi<State> for State {
                 break;
             }
         }
-        self.events().get_type::<CursorSense>().active = active;
-        self.ui().layers = layers;
+        self.events_mut().get_type::<CursorSense>().active = active;
+        self.ui_mut().layers = layers;
     }
 }