anchor.diff:  	var/shop_logo = "donate"
   	/// Replaces the "pay whatever" functionality with a set amount when non-zero.
   	var/force_fee = 0
  +	/// Current holder of the linked card
  +	var/datum/weakref/holder
   
   /obj/structure/holopay/examine(mob/user)
   	. = ..()
  
positive.code: /obj/structure/holopay/proc/check_operation()
  	SIGNAL_HANDLER
  	var/obj/item/card/id/linked_card = get_card()
  	if(!IN_GIVEN_RANGE(src, linked_card, max_holo_range) || !IN_GIVEN_RANGE(src, linked_card.loc, max_holo_range))
  		dissapate()
  
  
negative.code: 	/// Start checking if the source projection is in range
  	RegisterSignal(card, COMSIG_MOVABLE_MOVED, .proc/check_operation)
  	if(card.loc)
  		holder = WEAKREF(card.loc)
  		RegisterSignal(card.loc, COMSIG_MOVABLE_MOVED, .proc/check_operation)
  	return TRUE
  
  