first pass of cleaning up construction.dm + merge from upstream

code/ATMOSPHERICS/atmospherics.dm

@@ -53,6 +53,9 @@ Pipelines + Other Objects -> Pipe network
 /obj/machinery/atmospherics/proc/SetInitDirections()
 	return
 
+/obj/machinery/atmospherics/proc/GetInitDirections()
+	return initialize_directions
+
 /obj/machinery/atmospherics/proc/returnPipenet()
 	return
 
@@ -161,12 +164,10 @@ Pipelines + Other Objects -> Pipe network
 	return img
 
 /obj/machinery/atmospherics/construction(D, P, pipe_type, obj_color)
-	dir = D
-	initialize_directions = P
 	if(can_unwrench)
 		color = obj_color
 		pipe_color = obj_color
-		stored.dir = D				  //need to define them here, because the obj directions...
+		stored.dir = src.dir				  //need to define them here, because the obj directions...
 		stored.pipe_type = pipe_type  //... were not set at the time the stored pipe was created
 		stored.color = obj_color
 	var/turf/T = loc
@@ -196,6 +197,9 @@ Pipelines + Other Objects -> Pipe network
 	if(!(direction & initialize_directions)) //cant go this way.
 		return
 
+	if(buckled_mob == user) // fixes buckle ventcrawl edgecase fuck bug
+		return
+
 	var/obj/machinery/atmospherics/target_move = findConnecting(direction)
 	if(target_move)
 		if(is_type_in_list(target_move, ventcrawl_machinery) && target_move.can_crawl_through())

code/ATMOSPHERICS/pipes/he_pipes.dm

@@ -36,6 +36,9 @@
 		if(SOUTHWEST)
 			initialize_directions_he = SOUTH|WEST
 
+/obj/machinery/atmospherics/pipe/simple/heat_exchanging/GetInitDirections()
+	return ..() | initialize_directions_he
+
 /obj/machinery/atmospherics/pipe/simple/heat_exchanging/atmosinit()
 	normalize_dir()
 	var/N = 2