Fixes plumbing ducts appearing disconnected (#48924)

* fixes ducts appearing disconnected

* adds comment to remove connects

* adds newlines for comments and fixes an autodoc typo

code/modules/plumbing/ducts.dm

@@ -60,9 +60,9 @@ All the important duct code:
 			disconnect_duct()
 	if(active)
 		attempt_connect()
+
 ///start looking around us for stuff to connect to
 /obj/machinery/duct/proc/attempt_connect()
-	reset_connects() //All connects are gathered here again eitherway, we might aswell reset it so they properly update when reconnecting
 
 	for(var/atom/movable/AM in loc)
 		var/datum/component/plumbing/P = AM.GetComponent(/datum/component/plumbing)
@@ -76,6 +76,7 @@ All the important duct code:
 			if(connect_network(AM, D))
 				add_connects(D)
 	update_icon()
+
 ///see if whatever we found can be connected to
 /obj/machinery/duct/proc/connect_network(atom/movable/AM, direction, ignore_color)
 	if(istype(AM, /obj/machinery/duct))
@@ -85,6 +86,7 @@ All the important duct code:
 	if(!plumber)
 		return
 	return connect_plumber(plumber, direction)
+
 ///connect to a duct
 /obj/machinery/duct/proc/connect_duct(obj/machinery/duct/D, direction, ignore_color)
 	var/opposite_dir = turn(direction, 180)
@@ -124,6 +126,7 @@ All the important duct code:
 	D.attempt_connect()
 
 	return TRUE
+
 ///connect to a plumbing object
 /obj/machinery/duct/proc/connect_plumber(datum/component/plumbing/P, direction)
 	var/opposite_dir = turn(direction, 180)
@@ -140,6 +143,7 @@ All the important duct code:
 		if(duct.add_plumber(P, opposite_dir))
 			neighbours[P.parent] = direction
 			return TRUE
+
 ///we disconnect ourself from our neighbours. we also destroy our ductnet and tell our neighbours to make a new one
 /obj/machinery/duct/proc/disconnect_duct()
 	anchored = FALSE
@@ -190,25 +194,35 @@ All the important duct code:
 /obj/machinery/duct/proc/create_duct()
 	duct = new()
 	duct.add_duct(src)
+
 ///add a duct as neighbour. this means we're connected and will connect again if we ever regenerate
 /obj/machinery/duct/proc/add_neighbour(obj/machinery/duct/D, direction)
 	if(!(D in neighbours))
 		neighbours[D] = direction
 	if(!(src in D.neighbours))
 		D.neighbours[src] = turn(direction, 180)
+
 ///remove all our neighbours, and remove us from our neighbours aswell
 /obj/machinery/duct/proc/lose_neighbours()
 	for(var/obj/machinery/duct/D in neighbours)
 		D.neighbours.Remove(src)
 	neighbours = list()
+
 ///add a connect direction
 /obj/machinery/duct/proc/add_connects(new_connects) //make this a define to cut proc calls?
 	if(!lock_connects)
 		connects |= new_connects
+
+///remove a connect direction
+/obj/machinery/duct/proc/remove_connects(dead_connects)
+	if(!lock_connects)
+		connects &= ~dead_connects
+
 ///remove our connects
 /obj/machinery/duct/proc/reset_connects()
 	if(!lock_connects)
 		connects = 0
+
 ///get a list of the ducts we can connect to if we are dumb
 /obj/machinery/duct/proc/get_adjacent_ducts()
 	var/list/adjacents = list()