Add Chunk.region field

world/chunk.gd

@@ -7,6 +7,7 @@ const SIZE := 32 # blocks
 signal clean
 
 var chunk_pos: Vector2i
+var region: BlockRegion
 var dirty := false
 
 var tracked_by: Dictionary[ChunkLoader, Variant] # value is unused
@@ -19,6 +20,11 @@ func get_players_tracking() -> Array[Player]:
 
 func _init(chunk_pos: Vector2i) -> void:
 	self.chunk_pos = chunk_pos
+
+	var min := chunk_pos * Chunk.SIZE
+	var max := (chunk_pos + Vector2i.ONE) * Chunk.SIZE - Vector2i.ONE
+	region = BlockRegion.new(min, max)
+
 	name     = "Chunk %s" % chunk_pos
 	position = (Vector2(chunk_pos) + Vector2.ONE / 2) * (Block.SIZE * SIZE)