CLASS ava net/minecraft/world/gen/decorator/DecoratorSurface
	METHOD <init> (Z)V
		ARG 0 doBlockUpdates
	METHOD a (Laiw;Lcn;)V
		ARG 0 world
		ARG 1 pos
	METHOD a (Laiw;Ljava/util/Random;Lcn;)V
		ARG 0 world
		ARG 1 random
		ARG 2 pos
	METHOD a checkBlock (Laky;)Z
		ARG 0 block