Add 3 spawn points in each level

Create the scene Spawner by the way.

Spawner.gd

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+extends Position2D
+
+func _ready():
+	add_to_group("spawn")

Spawner.tscn

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+[gd_scene load_steps=2 format=2]
+
+[ext_resource path="res://Spawner.gd" type="Script" id=1]
+
+[node name="Spawn" type="Position2D"]
+script = ExtResource( 1 )