CLASS brs net/minecraft/world/gen/Heightmap
	CLASS brs$a Type
		FIELD a WORLD_SURFACE_WG Lbrs$a;
		FIELD b WORLD_SURFACE Lbrs$a;
		FIELD c OCEAN_FLOOR_WG Lbrs$a;
		FIELD d OCEAN_FLOOR Lbrs$a;
		FIELD e MOTION_BLOCKING Lbrs$a;
		FIELD f MOTION_BLOCKING_NO_LEAVES Lbrs$a;
		FIELD g name Ljava/lang/String;
		FIELD j nameMap Ljava/util/Map;
		METHOD <init> (Ljava/lang/String;ILjava/lang/String;Lbrs$b;Ljava/util/function/Predicate;)V
			ARG 3 name
		METHOD a getName ()Ljava/lang/String;
		METHOD a byName (Ljava/lang/String;)Lbrs$a;
			ARG 0 name
	FIELD c storage Lyc;
	METHOD a asLongArray ()[J
	METHOD a fromLongArray ([J)V