Simple ai shooting PoC (#23)

src/abilities/mod.rs

@@ -3,8 +3,10 @@ mod thrown;
 
 use crate::{
     GameState,
+    aim::AimTarget,
     heads::ActiveHeads,
     hitpoints::Hit,
+    physics_layers::GameLayer,
     player::{Player, PlayerRig},
     sounds::PlaySound,
     tb_entities::EnemySpawn,
@@ -35,16 +37,36 @@ pub enum HeadAbility {
 }
 
 #[derive(Debug, Reflect, Clone, Copy)]
-pub struct PlayerTriggerState {
+pub struct TriggerData {
+    target: Option<Entity>,
     dir: Dir3,
     rot: Quat,
     pos: Vec3,
+    target_layer: GameLayer,
+}
+
+impl TriggerData {
+    pub fn new(
+        target: Option<Entity>,
+        dir: Dir3,
+        rot: Quat,
+        pos: Vec3,
+        target_layer: GameLayer,
+    ) -> Self {
+        Self {
+            target,
+            dir,
+            rot,
+            pos,
+            target_layer,
+        }
+    }
 }
 
 #[derive(Event, Reflect)]
-pub struct TriggerGun(pub PlayerTriggerState);
+pub struct TriggerGun(pub TriggerData);
 #[derive(Event, Reflect)]
-pub struct TriggerThrow(pub PlayerTriggerState);
+pub struct TriggerThrow(pub TriggerData);
 
 pub fn plugin(app: &mut App) {
     app.add_plugins(gun::plugin);
@@ -84,7 +106,7 @@ fn on_trigger_state(
     trigger: Trigger<TriggerState>,
     mut commands: Commands,
     player_rot: Query<&Transform, With<PlayerRig>>,
-    player_transform: Query<&Transform, With<Player>>,
+    player_query: Query<(&Transform, &AimTarget), With<Player>>,
     mut active_heads: ResMut<ActiveHeads>,
     time: Res<Time>,
 ) {
@@ -98,7 +120,7 @@ fn on_trigger_state(
             return;
         }
 
-        let Some(transform) = player_transform.iter().next().copied() else {
+        let Some((transform, target)) = player_query.iter().next() else {
             return;
         };
 
@@ -106,10 +128,12 @@ fn on_trigger_state(
             return;
         };
 
-        let trigger_state = PlayerTriggerState {
+        let trigger_state = TriggerData {
             dir,
             rot,
             pos: transform.translation,
+            target: target.0,
+            target_layer: GameLayer::Npc,
         };
 
         active_heads.use_ammo(time.elapsed_secs());