CLASS ars net/minecraft/entity/boss/WitherEntity
	FIELD bB INVUL_TIMER Lqe;
	FIELD b TRACKED_ENTITY_ID_1 Lqe;
	FIELD c TRACKED_ENTITY_ID_2 Lqe;
	FIELD d TRACKED_ENTITY_ID_3 Lqe;
	METHOD a setTrackedEntityId (II)V
		ARG 1 headIndex
	METHOD b canDestroy (Lbtw;)Z
	METHOD dO getInvulTimer ()I
	METHOD dP isAtHalfHealth ()Z
	METHOD q setInvulTimer (I)V
	METHOD r getTrackedEntityId (I)I