diff --git a/ruf-der-pilze/scripts/interactable.gd b/ruf-der-pilze/scripts/interactable.gd
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+# Base class for all interactable objects in the world.
+# Attach to a StaticBody3D or Area3D that has a CollisionShape3D.
+# Override interact() in subclasses.
+class_name Interactable
+extends Node3D
+
+## Called when a player interacts with this object.
+## peer_id is the NetworkManager.my_id of the interacting player.
+func interact(_peer_id: int) -> void:
+	pass