Variable

code/game/atoms_movable.dm

@@ -3,7 +3,7 @@
 	appearance_flags = TILE_BOUND
 	glide_size = 8 // Default, adjusted when mobs move based on their movement delays
 	var/last_move = null
-	var/anchored = 0
+	var/anchored = FALSE
 	var/move_resist = MOVE_RESIST_DEFAULT
 	var/move_force = MOVE_FORCE_DEFAULT
 	var/pull_force = PULL_FORCE_DEFAULT
@@ -13,13 +13,15 @@
 	var/datum/thrownthing/throwing = null
 	var/throw_speed = 2 //How many tiles to move per ds when being thrown. Float values are fully supported
 	var/throw_range = 7
-	var/no_spin = 0
-	var/no_spin_thrown = 0
-	var/moved_recently = 0
+	var/no_spin = FALSE
+	var/no_spin_thrown = FALSE
+	var/moved_recently = FALSE
 	var/mob/pulledby = null
 	var/atom/movable/pulling
+	/// Face towards the atom while pulling it
+	var/face_while_pulling = FALSE
 	var/throwforce = 0
-	var/canmove = 1
+	var/canmove = TRUE
 
 	var/inertia_dir = 0
 	var/atom/inertia_last_loc

code/game/objects/structures.dm

@@ -2,6 +2,7 @@
 	icon = 'icons/obj/structures.dmi'
 	pressure_resistance = 8
 	max_integrity = 300
+	face_while_pulling = TRUE
 	var/climbable
 	var/mob/climber
 	var/broken = FALSE

code/modules/mob/mob_movement.dm

@@ -169,7 +169,7 @@
 			n = get_step(mob, direct)
 
 	. = mob.SelfMove(n, direct, delay)
-	if(mob.pulling && isstructure(mob.pulling))
+	if(mob.pulling?.face_while_pulling)
 		mob.setDir(get_dir(mob, mob.pulling)) // Face welding tanks and stuff when pulling
 	else
 		mob.setDir(direct)