Line of sight for enemy

src/enemy/Enemy.cs

@@ -17,6 +17,8 @@ public interface IEnemy : ICharacterBody3D
   public EnemyStatInfo EnemyStatInfo { get; set; }
 
   public NavigationAgent3D NavAgent { get; set; }
+
+  public Area3D LineOfSight { get; set; }
 }
 
 [Meta(typeof(IAutoNode))]
@@ -43,6 +45,8 @@ public partial class Enemy : CharacterBody3D, IEnemy, IProvide<IEnemyLogic>
 
   [Node] public NavigationAgent3D NavAgent { get; set; } = default!;
 
+  [Node] public Area3D LineOfSight { get; set; } = default!;
+
   public void Setup()
   {
     EnemyLogic = new EnemyLogic();
@@ -55,6 +59,12 @@ public partial class Enemy : CharacterBody3D, IEnemy, IProvide<IEnemyLogic>
   {
     CurrentHP = new AutoProp<double>(EnemyStatInfo.MaximumHP);
     CurrentHP.Sync += OnHPChanged;
+    LineOfSight.BodyEntered += LineOfSight_BodyEntered;
+  }
+
+  private void LineOfSight_BodyEntered(Node3D body)
+  {
+    EnemyLogic.Input(new EnemyLogic.Input.Alerted());
   }
 
   public void OnResolved()