CLASS um FIELD a world Lbaq; FIELD b player Lul; FIELD c gameMode Lban; METHOD a update ()V METHOD a setGameMode (Lban;)V METHOD a setWorld (Luj;)V METHOD b getGameMode ()Lban; METHOD b setGameModeIfNotPresent (Lban;)V METHOD c isSurvivalLike ()Z METHOD d isCreative ()Z