simple hitpoint mechanic

src/gates.rs

@@ -1,4 +1,4 @@
-use crate::movables::TriggerMovableEvent;
+use crate::{movables::TriggerMovableEvent, npc::KeyCollected};
 use bevy::{prelude::*, utils::hashbrown::HashSet};
 
 #[derive(Resource)]
@@ -9,36 +9,34 @@ enum GatesState {
 
 pub fn plugin(app: &mut App) {
     app.insert_resource(GatesState::Init);
-    app.add_systems(Update, update);
+    app.add_observer(on_key);
 }
 
-fn update(
+fn on_key(
+    _trigger: Trigger<KeyCollected>,
     mut commands: Commands,
-    keyboard: Res<ButtonInput<KeyCode>>,
     mut state: ResMut<GatesState>,
     asset_server: Res<AssetServer>,
 ) {
-    if keyboard.just_pressed(KeyCode::Digit1) {
-        if matches!(*state, GatesState::Init) {
-            *state = GatesState::GateOpen1;
+    if matches!(*state, GatesState::Init) {
+        *state = GatesState::GateOpen1;
 
-            //TODO: put into a sound effects system
-            commands.spawn((
-                AudioPlayer::new(asset_server.load("sfx/effects/gate.ogg")),
-                PlaybackSettings::DESPAWN,
-            ));
-            //TODO: put into actual key collect once we have that
-            commands.spawn((
-                AudioPlayer::new(asset_server.load("sfx/effects/key_collect.ogg")),
-                PlaybackSettings::DESPAWN,
-            ));
+        //TODO: put into a sound effects system
+        commands.spawn((
+            AudioPlayer::new(asset_server.load("sfx/effects/gate.ogg")),
+            PlaybackSettings::DESPAWN,
+        ));
+        //TODO: put into actual key collect once we have that
+        commands.spawn((
+            AudioPlayer::new(asset_server.load("sfx/effects/key_collect.ogg")),
+            PlaybackSettings::DESPAWN,
+        ));
 
-            let entities: HashSet<_> = vec!["fence_01", "fence_02"]
-                .into_iter()
-                .map(|s| String::from(s))
-                .collect();
+        let entities: HashSet<_> = vec!["fence_01", "fence_02"]
+            .into_iter()
+            .map(|s| String::from(s))
+            .collect();
 
-            commands.trigger(TriggerMovableEvent(entities));
-        }
+        commands.trigger(TriggerMovableEvent(entities));
     }
 }