debug

code/game/atoms_movable.dm

@@ -9,6 +9,7 @@
 	var/throw_range = 7
 	var/cur_speed = MIN_SPEED // Current speed of an atom (account for speed when launched/thrown as well)
 	var/mob/pulledby = null
+	var/debug_pulledby_warned = FALSE
 	var/rebounds = FALSE
 	var/rebounding = FALSE // whether an object that was launched was rebounded (to prevent infinite recursive loops from wall bouncing)
 

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

@@ -766,6 +766,9 @@
 /mob/living/carbon/xenomorph/resist_grab(moving_resist)
 	if(!pulledby)
 		return
+	if(pulledby && pulledby?.pulling != pulledby && !debug_pulledby_warned)
+		debug_pulledby_warned = TRUE
+		debug_pulledby()
 	if(pulledby.grab_level)
 		visible_message(SPAN_DANGER("[src] has broken free of [pulledby]'s grip!"), null, null, 5)
 	pulledby.stop_pulling()

code/modules/mob/living/living.dm

@@ -215,6 +215,9 @@
 /mob/living/resist_grab(moving_resist)
 	if(!pulledby)
 		return
+	if(pulledby && pulledby?.pulling != pulledby && !debug_pulledby_warned)
+		debug_pulledby_warned = TRUE
+		debug_pulledby()
 	if(pulledby.grab_level)
 		if(prob(50))
 			playsound(src.loc, 'sound/weapons/thudswoosh.ogg', 25, 1, 7)
@@ -228,6 +231,8 @@
 		pulledby.stop_pulling()
 		return 1
 
+/mob/proc/debug_pulledby()
+	log_debug("PULLEDBY: Improper pulling relationship between pullee \[[src.name] (type:[src.type]) @ \ref[src]\] [ADMIN_VV(src)] and would-be puller \[[src.pulledby?.name] (type:[src.pulledby?.type]) @ \ref[src.pulledby]\] [ADMIN_VV(src.pulledby)]")
 
 /mob/living/movement_delay()
 	. = ..()

code/modules/mob/mob.dm

@@ -542,9 +542,9 @@
 			return
 	else if(istype(AM, /obj))
 		AM.add_fingerprint(src)
-
 	pulling = AM
 	AM.pulledby = src
+	AM.debug_pulledby_warned = FALSE
 
 	var/obj/item/grab/G = new /obj/item/grab()
 	G.grabbed_thing = AM