fix(multitasking): removes ability to perform identical do_after() an…

…d do_mob()

code/_global_vars/mobs.dm

@@ -11,3 +11,8 @@ GLOBAL_LIST_EMPTY(silicon_mob_list) //List of all silicon mobs, including client
 GLOBAL_LIST_EMPTY(living_mob_list_) //List of all alive mobs, including clientless. Excludes /mob/new_player
 GLOBAL_LIST_EMPTY(dead_mob_list_)   //List of all dead mobs, including clientless. Excludes /mob/new_player
 GLOBAL_LIST_EMPTY(ghost_mob_list)   //List of all ghosts, including clientless. Excludes /mob/new_player
+
+/// List of mobs currently using do_mob() to prevent duplicated actions
+GLOBAL_LIST_EMPTY(domobs)
+/// List of mobs currently using do_after() to prevent duplicated actions
+GLOBAL_LIST_EMPTY(doafters)

code/_helpers/mobs.dm

@@ -130,7 +130,14 @@
 
 /proc/do_mob(atom/movable/affecter, mob/target, time = 30, target_zone = 0, uninterruptible = 0, progress = 1, incapacitation_flags = INCAPACITATION_DEFAULT)
 	if(!affecter || !target)
-		return 0
+		return FALSE
+
+	var/uniqueid = "domob_\ref[affecter]_\ref[target]"
+	if(uniqueid in GLOB.domobs)
+		return FALSE
+
+	LAZYADD(GLOB.domobs, uniqueid)
+
 	var/mob/user = affecter
 	var/is_mob_type = istype(user)
 	var/user_loc = affecter.loc
@@ -183,9 +190,18 @@
 	if(progbar)
 		qdel(progbar)
 
-/proc/do_after(mob/user, delay, atom/target = null, needhand = 1, progress = 1, incapacitation_flags = INCAPACITATION_DEFAULT, same_direction = 0, can_move = 0)
+	LAZYREMOVE(GLOB.domobs, uniqueid)
+
+/proc/do_after(mob/user, delay, atom/target = null, needhand = TRUE, progress = TRUE, incapacitation_flags = INCAPACITATION_DEFAULT, same_direction = FALSE, can_move = FALSE)
 	if(!user)
-		return 0
+		return FALSE
+
+	var/uniqueid = "doafter_\ref[user]_\ref[target]"
+	if(uniqueid in GLOB.doafters)
+		return FALSE
+
+	LAZYADD(GLOB.doafters, uniqueid)
+
 	var/atom/target_loc = null
 	var/target_type = null
 
@@ -229,9 +245,11 @@
 				. = 0
 				break
 
-	if (progbar)
+	if(progbar)
 		qdel(progbar)
 
+	LAZYREMOVE(GLOB.doafters, uniqueid)
+
 /proc/is_species(A, species_datum)
 	. = FALSE
 	if(ishuman(A))