made a rat and a ladder and the rat is *kind* of working

scripts/rat_hole.gd

@@ -0,0 +1,29 @@
+extends Node3D
+
+@export var rat : Resource
+@onready var ray = $RayCast3D
+@onready var area_3d = $Area3D
+
+
+# Called when the node enters the scene tree for the first time.
+func _ready():
+	pass # Replace with function body.
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta):
+	pass
+
+func spawn_rat(end_hole,control_node):
+	var spawn_rat = rat.instantiate()
+	spawn_rat.position = ray.global_position
+	spawn_rat.transform.basis = ray.global_transform.basis
+	spawn_rat.look_at(end_hole.position,Vector3.UP)
+	spawn_rat.end_hole = end_hole
+	get_tree().get_root().add_child(spawn_rat)
+
+func _on_area_3d_body_entered(body):
+	if body.is_in_group("rat"):
+		if body.end_hole == self:
+			#body.control_node.spawn_amount += 1 #signal to control node that another rat can enter the scene
+			body.queue_free()