CLASS af net/minecraft/advancement/criterion/ConstructBeaconCriterion CLASS af$a Handler FIELD a manager Lqn; FIELD b conditions Ljava/util/Set; METHOD a isEmpty ()Z METHOD a handle (Lbop;)V METHOD a addCondition (Lu$a;)V METHOD b removeCondition (Lu$a;)V CLASS af$b Conditions FIELD a level Lbf$d; METHOD a level (Lbf$d;)Laf$b; METHOD a matches (Lbop;)Z FIELD a ID Lqd; FIELD b handlers Ljava/util/Map; METHOD a handle (Lut;Lbop;)V ARG 1 player METHOD b deserializeConditions (Lcom/google/gson/JsonObject;Lcom/google/gson/JsonDeserializationContext;)Laf$b; ARG 1 obj