Relaymove tweaks (#19489)

Made relaymoves uniform in function header and non sleepable.
Improved IPC/borg recharger, made it time constant.
Tweaked client/Move() to avoid a range(), moved a relaymove around to
fix a bug, some minor tweaks.
Fixed IPC/borg recharge station not taking the IPC/Borg in on bump.

code/modules/mob/living/carbon/brain/MMI.dm

@@ -201,7 +201,11 @@
 		if("Vaurca")
 			braintype = "vaurca"
 
-/obj/item/device/mmi/relaymove(var/mob/user, var/direction)
+/obj/item/device/mmi/relaymove(mob/living/user, direction)
+	. = ..()
+	if(!.)
+		return
+
 	if(user.stat || user.stunned)
 		return
 	var/obj/item/rig/rig = get_rig()

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

@@ -76,7 +76,11 @@
 
 		src.help_up_offer = 0
 
-/mob/living/carbon/relaymove(var/mob/living/user, direction)
+/mob/living/carbon/relaymove(mob/living/user, direction)
+	. = ..()
+	if(!.)
+		return
+
 	if((user in contents) && istype(user))
 		if(user.last_special <= world.time)
 			user.last_special = world.time + 50

code/modules/mob/mob_movement.dm

@@ -242,8 +242,10 @@
 
 	var/old_move_delay = move_delay
 
-	if(!mob)
-		return // Moved here to avoid nullrefs below
+	if(!direct || !new_loc)
+		return FALSE
+	if(!mob?.loc)
+		return FALSE
 
 	if(mob.control_object)
 		Move_object(direct)
@@ -307,6 +309,10 @@
 	if(!mob.lastarea)
 		mob.lastarea = get_area(mob.loc)
 
+	if(isobj(mob.loc) || ismob(mob.loc))	//Inside an object, tell it we are moving out
+		var/atom/O = mob.loc
+		return O.relaymove(mob, direct)
+
 	if(isturf(mob.loc))
 		if(!mob.check_solid_ground())
 			var/allowmove = mob.Allow_Spacemove(0)
@@ -319,15 +325,15 @@
 
 
 		if(mob.restrained())		//Why being pulled while cuffed prevents you from moving
-			for(var/mob/M in range(mob, 1))
-				if(M.pulling == mob)
-					if(!M.restrained() && M.stat == 0 && M.canmove && mob.Adjacent(M))
-						to_chat(src, SPAN_NOTICE("You're restrained! You can't move!"))
-						return FALSE
-					else
-						M.stop_pulling()
+			var/mob/puller = mob.pulledby
+			if(puller)
+				if(!puller.restrained() && puller.stat == 0 && puller.canmove && mob.Adjacent(puller))
+					to_chat(src, SPAN_NOTICE("You're restrained! You can't move!"))
+					return FALSE
+				else
+					puller.stop_pulling()
 
-		if(mob.pinned.len)
+		if(length(mob.pinned))
 			to_chat(src, SPAN_WARNING("You're pinned to a wall by [mob.pinned[1]]!"))
 			move_delay = world.time + 1 SECOND // prevent spam
 			return FALSE
@@ -423,7 +429,7 @@
 		else
 			. = mob.SelfMove(new_loc, direct)
 
-		for (var/obj/item/grab/G in list(mob:l_hand, mob:r_hand))
+		for (var/obj/item/grab/G in list(mob.l_hand, mob.r_hand))
 			if (G.state == GRAB_NECK)
 				mob.set_dir(GLOB.reverse_dir[direct])
 			G.adjust_position()
@@ -437,10 +443,6 @@
 			var/mob/living/carbon/human/H = mob
 			H.species.handle_sprint_cost(H, sprint_tally, FALSE)
 
-	if(isobj(mob.loc) || ismob(mob.loc))	//Inside an object, tell it we moved
-		var/atom/O = mob.loc
-		return O.relaymove(mob, direct)
-
 /mob/living/carbon/human/proc/get_crawl_tally()
 	var/obj/item/organ/external/rhand = organs_by_name[BP_R_HAND]
 	. += limb_check(rhand)