Enemy Hivemind became Room Manager, will probably pull out the actual enemy script at some point

scripts/room_check.gd

@@ -0,0 +1,20 @@
+extends Node
+
+signal player_entered_room()
+signal player_left_room()
+
+# Called when the node enters the scene tree for the first time.
+func _ready() -> void:
+	add_to_group("room_check")
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta: float) -> void:
+	pass
+
+func _on_body_entered(body: Node3D) -> void:
+	if body.is_in_group("player"):
+		emit_signal("player_entered_room")
+
+func _on_body_exited(body: Node3D) -> void:
+	if body.is_in_group("player"):
+		emit_signal("player_left_room")