Simple ai shooting PoC (#23)

src/abilities/gun.rs

@@ -1,13 +1,7 @@
 use super::{Projectile, TriggerGun};
 use crate::{
-    GameState,
-    aim::AimState,
-    billboards::Billboard,
-    loading_assets::GameAssets,
-    physics_layers::GameLayer,
-    player::{Player, PlayerRig},
-    sounds::PlaySound,
-    utils::sprite_3d_animation::AnimationTimer,
+    GameState, billboards::Billboard, loading_assets::GameAssets, physics_layers::GameLayer,
+    sounds::PlaySound, utils::sprite_3d_animation::AnimationTimer,
 };
 use avian3d::prelude::{
     Collider, CollisionLayers, CollisionStarted, LayerMask, PhysicsLayer, Sensor,
@@ -52,8 +46,7 @@ fn setup(mut commands: Commands, assets: Res<GameAssets>, mut sprite_params: Spr
 fn on_trigger_state(
     trigger: Trigger<TriggerGun>,
     mut commands: Commands,
-    aim: Res<AimState>,
-    target_transform: Query<&Transform, (Without<Player>, Without<PlayerRig>)>,
+    query_transform: Query<&Transform>,
     time: Res<Time>,
     mut polyline_materials: ResMut<Assets<PolylineMaterial>>,
     mut polylines: ResMut<Assets<Polyline>>,
@@ -62,8 +55,8 @@ fn on_trigger_state(
 
     commands.trigger(PlaySound::Gun);
 
-    let rotation = if let Some(target) = aim.target {
-        let t = target_transform
+    let rotation = if let Some(target) = state.target {
+        let t = query_transform
             .get(target)
             .expect("target must have transform");
         Transform::from_translation(state.pos)
@@ -86,7 +79,7 @@ fn on_trigger_state(
             Collider::capsule_endpoints(0.5, Vec3::new(0., 0., 0.), Vec3::new(0., 0., -3.)),
             CollisionLayers::new(
                 LayerMask(GameLayer::Projectile.to_bits()),
-                LayerMask(GameLayer::Npc.to_bits() | GameLayer::Level.to_bits()),
+                LayerMask(state.target_layer.to_bits() | GameLayer::Level.to_bits()),
             ),
             Sensor,
             Visibility::default(),