TransientFloorSpawner removal is persistent

src/world/grunk_beast/beast_spawner/transient_floor_spawner.gd

@@ -0,0 +1,13 @@
+extends FloorSpawner
+## Floor spawner that gets removed when the player degrunks it
+## We can use this to ensure the beast only gets spawned on heavily-grunked parts of the floor.
+
+
+func serialize() -> Dictionary:
+	# Nothing to serialize, but we need a placeholder value to show we haven't been destroyed.
+	return {}
+
+
+func deserialize(_state: Dictionary) -> void:
+	# Nothing to deserialize, but we won't be freed!
+	pass

src/world/grunk_beast/beast_spawner/transient_floor_spawner.gd.uid

@@ -0,0 +1 @@
+uid://b7wejb2uwu43a

src/world/grunk_beast/beast_spawner/transient_floor_spawner.tscn

@@ -1,6 +1,6 @@
 [gd_scene load_steps=6 format=3 uid="uid://5vh7mnjavlle"]
 
-[ext_resource type="Script" uid="uid://cqildi0gndwp2" path="res://src/world/grunk_beast/beast_spawner/floor_spawner.gd" id="1_42oks"]
+[ext_resource type="Script" uid="uid://b7wejb2uwu43a" path="res://src/world/grunk_beast/beast_spawner/transient_floor_spawner.gd" id="1_42oks"]
 [ext_resource type="PackedScene" uid="uid://ehf5sg3ahvbf" path="res://src/world/grunk_beast/grunk_beast.tscn" id="2_e5rh0"]
 
 [sub_resource type="CylinderShape3D" id="CylinderShape3D_42oks"]
@@ -16,10 +16,9 @@ height = 0.02
 height = 0.1
 radius = 1.2
 
-[node name="TransientFloorSpawner" type="Node3D" node_paths=PackedStringArray("spawn_exclusion_area") groups=["BeastSpawnPoint"]]
+[node name="TransientFloorSpawner" type="Node3D" groups=["BeastSpawnPoint", "Persistent"]]
 script = ExtResource("1_42oks")
 beast_scene = ExtResource("2_e5rh0")
-spawn_exclusion_area = NodePath("SpawnExclusionArea")
 spawn_priority = 10
 metadata/_custom_type_script = "uid://cqildi0gndwp2"