Semiport of Allow_Spacemove from Bay.

code/modules/mob/living/carbon/human/human_movement.dm

@@ -173,24 +173,6 @@
 			for(var/obj/item/rig_module/maneuvering_jets/module in rig.installed_modules)
 				return module.jets
 
-/mob/living/carbon/human/Process_Spacemove(var/check_drift = 0)
-	//Can we act?
-	if(restrained())	return 0
-
-	if(..()) //Can move due to other reasons, don't use jetpack fuel
-		return 1
-
-	//Do we have a working jetpack?
-	var/obj/item/tank/jetpack/thrust = get_jetpack()
-
-	if(thrust)
-		if(((!check_drift) || (check_drift && thrust.stabilization_on)) && (!lying) && (thrust.do_thrust(0.01, src)))
-			inertia_dir = 0
-			return 1
-
-	return 0
-
-
 /mob/living/carbon/human/Process_Spaceslipping(var/prob_slip = 5)
 	//If knocked out we might just hit it and stop.  This makes it possible to get dead bodies and such.
 

code/modules/mob/living/silicon/robot/robot_movement.dm

@@ -7,23 +7,7 @@
 	return module && module.no_slip
 
 /mob/living/silicon/robot/Process_Spaceslipping(var/prob_slip)
-	var/obj/item/tank/jetpack/thrust = get_jetpack()
-	if(thrust?.can_thrust(0.01))
-		return 0
-	if(module && module.no_slip)
-		return 0
-	..(prob_slip)
-
-/mob/living/silicon/robot/Process_Spacemove(var/check_drift = 0)
-	if(..())//Can move due to other reasons, don't use jetpack fuel
-		return 1
-
-	var/obj/item/tank/jetpack/thrust = get_jetpack()
-	if(thrust && (!check_drift || (check_drift && thrust.stabilization_on)) && thrust.do_thrust(0.01))
-		inertia_dir = 0
-		return 1
-
-	return 0
+	return ..(module?.no_slip ? 0 : prob_slip)
 
  //No longer needed, but I'll leave it here incase we plan to re-use it.
 /mob/living/silicon/robot/movement_delay()

code/modules/mob/living/simple_mob/subtypes/humanoid/mercs/mercs.dm

@@ -430,4 +430,4 @@
 		/obj/random/projectile/scrapped_grenadelauncher = 100,
 		/obj/item/grenade/spawnergrenade/manhacks/mercenary = 50,
 		/obj/item/grenade/spawnergrenade/manhacks/mercenary = 30
-		)
+		)

code/modules/mob/living/simple_mob/subtypes/mechanical/drones/combat_drone.dm

@@ -79,6 +79,9 @@
 	..(null,"suddenly breaks apart.")
 	qdel(src)
 
+/mob/living/simple_mob/mechanical/combat_drone/Allow_Spacemove(var/dense_object, check_drift = 0)
+	return TRUE
+
 /mob/living/simple_mob/mechanical/combat_drone/Process_Spacemove(var/check_drift = 0)
 	return TRUE
 

code/modules/mob/living/simple_mob/subtypes/mechanical/drones/mining_drone.dm

@@ -88,6 +88,9 @@
 	..(null,"suddenly breaks apart.")
 	qdel(src)
 
+/mob/living/simple_mob/mechanical/mining_drone/Allow_Spacemove(var/dense_object, check_drift = 0)
+	return TRUE
+
 /mob/living/simple_mob/mechanical/mining_drone/Process_Spacemove(var/check_drift = 0)
 	return TRUE
 
@@ -150,4 +153,4 @@
 
 
 /decl/mob_organ_names/miningdrone
-	hit_zones = list("chassis", "comms array", "sensor suite", "left excavator module", "right excavator module", "maneuvering thruster")
+	hit_zones = list("chassis", "comms array", "sensor suite", "left excavator module", "right excavator module", "maneuvering thruster")

code/modules/mob/living/simple_mob/subtypes/mechanical/mecha/hoverpod.dm

@@ -40,8 +40,11 @@
 	ion_trail.start()
 	return ..()
 
+/mob/living/simple_mob/mechanical/mecha/hoverpod/Allow_Spacemove(var/dense_object, check_drift = 0)
+	return TRUE
+
 /mob/living/simple_mob/mechanical/mecha/hoverpod/Process_Spacemove(var/check_drift = 0)
 	return TRUE
 
 /decl/mob_organ_names/hoverpod
-	hit_zones = list("central chassis", "control module", "hydraulics", "left manipulator", "right manipulator", "left landing strut", "right landing strut", "maneuvering thruster", "sensor suite", "radiator", "power supply")
+	hit_zones = list("central chassis", "control module", "hydraulics", "left manipulator", "right manipulator", "left landing strut", "right landing strut", "maneuvering thruster", "sensor suite", "radiator", "power supply")

code/modules/mob/living/simple_mob/subtypes/occult/constructs/_construct.dm

@@ -142,8 +142,11 @@
 			. += "<span class='warning'><B>It looks severely dented!</B></span>"
 
 //Constructs levitate, can fall from a shuttle with no harm, and are piloted by either damned spirits or some otherworldly entity. Let 'em float in space.
-/mob/living/simple_mob/construct/Process_Spacemove()
-	return 1
+/mob/living/simple_mob/construct/Allow_Spacemove(var/dense_object, check_drift = 0)
+	return TRUE
+
+/mob/living/simple_mob/construct/Process_Spacemove(var/check_drift = 0)
+	return TRUE
 
 /*
 // Glowing Procs
@@ -155,4 +158,4 @@
 
 /mob/living/simple_mob/construct/proc/remove_glow()
 	overlays.Cut()
-*/
+*/

code/modules/mob/living/simple_mob/subtypes/occult/faithless.dm

@@ -42,8 +42,11 @@
 	max_n2 = 0
 	minbodytemp = 0
 
+/mob/living/simple_mob/faithless/Allow_Spacemove(var/dense_object, check_drift = 0)
+	return TRUE
+
 /mob/living/simple_mob/faithless/Process_Spacemove(var/check_drift = 0)
-	return 1
+	return TRUE
 
 /mob/living/simple_mob/faithless/apply_melee_effects(var/atom/A)
 	if(isliving(A))

code/modules/mob/living/simple_mob/subtypes/slime/slime.dm

@@ -238,4 +238,4 @@ var/global/list/_slime_default_emotes = list(
 	visible_message("<b>\The [src]</b> squishes!")
 
 /decl/mob_organ_names/slime
-	hit_zones = list("cytoplasmic membrane")
+	hit_zones = list("cytoplasmic membrane")

code/modules/mob/mob_movement.dm

@@ -395,6 +395,21 @@
 /mob/proc/get_jetpack()
 	return
 
+// Checks whether this mob is allowed to move in space
+// Return 1 for movement, 0 for none,
+// check_drift indicates this is an inertial move and can ignore other requirements.
+/mob/proc/Allow_Spacemove(var/dense_object, check_drift = 0)
+	if(check_drift)
+		return TRUE
+	if(restrained())
+		return FALSE
+	var/obj/item/tank/jetpack/J = get_jetpack()
+	if(J?.can_thrust(0.01))
+		return TRUE
+	if(!dense_object) //Nothing to push off of so end here
+		return FALSE
+	return TRUE
+
 ///Process_Spacemove
 ///Called by /client/Move()
 ///For moving in space
@@ -404,24 +419,27 @@
 	if(is_incorporeal())
 		return
 
-	if(!Check_Dense_Object()) //Nothing to push off of so end here
-		update_floating(0)
-		return 0
+	var/dense_object = Check_Dense_Object()
+	if(!Allow_Spacemove(dense_object, check_drift))
+		update_floating(dense_object)
+		return FALSE
 
-	update_floating(1)
+	update_floating(TRUE)
 
-	if(restrained()) //Check to see if we can do things
-		return 0
+	var/obj/item/tank/jetpack/thrust = get_jetpack()
+	if((!check_drift || (thrust && (check_drift && thrust.stabilization_on)) && !lying && thrust.do_thrust(0.01, src)))
+		inertia_dir = 0
+		return TRUE
 
 	//Check to see if we slipped
 	if(prob(Process_Spaceslipping(5)) && !buckled)
 		to_chat(src, "<span class='notice'><B>You slipped!</B></span>")
 		inertia_dir = last_move
 		step(src, src.inertia_dir) // Not using Move for smooth glide here because this is a 'slip' so should be sudden.
-		return 0
+		return FALSE
 	//If not then we can reset inertia and move
 	inertia_dir = 0
-	return 1
+	return TRUE
 
 /mob/proc/Check_Dense_Object() //checks for anything to push off in the vicinity. also handles magboots on gravity-less floors tiles