Moved player detection to external script

Scripts/Components/PlayerDetection.cs

@@ -0,0 +1,17 @@
+using Godot;
+using Godot.Collections;
+
+namespace Cirno.Scripts.Components;
+
+public partial class PlayerDetection : Area2D
+{
+    public InteractionController CachedPlayer => _cachedPlayer;
+
+    protected InteractionController _cachedPlayer;
+    public virtual bool IsPlayerInRange { get; set; }
+
+    public virtual bool IsPlayerInSight(uint collisionMask)
+    {
+        return false;
+    }
+}

Scripts/Components/ProximityPlayerDetection.cs

@@ -0,0 +1,45 @@
+using System.Diagnostics;
+using Godot;
+using Godot.Collections;
+
+namespace Cirno.Scripts.Components;
+
+public partial class ProximityPlayerDetection : PlayerDetection
+{
+    public override bool IsPlayerInRange { get; set; }
+
+    public override bool IsPlayerInSight(uint collisionMask)
+    {
+        if (_cachedPlayer == null) return false;
+        
+        var spaceState = GetWorld2D().DirectSpaceState;
+        
+        // I have no idea why I need to use the parent's collision mask instead of the local one but it doesn't detect the player otherwise
+        
+        var query = PhysicsRayQueryParameters2D.Create(this.GlobalPosition, _cachedPlayer.GlobalPosition, collisionMask, new Array<Rid> { GetRid() });
+        
+        // var query = PhysicsRayQueryParameters2D.Create(this.GlobalPosition, _cachedPlayer.GlobalPosition, CollisionMask, new Array<Rid> { GetRid() });
+        var result = spaceState.IntersectRay(query);
+
+        // If count is 0 then the player is in sight, otherwise there is level geometry in the way
+        return result.Count == 0;
+    }
+    
+    private void _on_area_entered(Area2D area)
+    {
+        // Assume area is player for now
+        if (area is not InteractionController player) return;
+        
+        Debug.WriteLine("Enemy detection area Entered by interaction controller");
+
+        _cachedPlayer = player;
+
+        IsPlayerInRange = true;
+    }
+
+    private void _on_area_exited(Area2D area)
+    {
+        if (area is not InteractionController player) return;
+        IsPlayerInRange = false;
+    }
+}