Hostile mobs no longer target logged out players. (#16200)

* Hostile mobs no longer target logged out players.

* ffs

---------

Co-authored-by: Matt Atlas <liermattia@gmail.com>

code/modules/mob/living/simple_animal/hostile/hostile.dm

@@ -70,6 +70,10 @@
 	for (var/atom/A in targets)
 		if(A == src)
 			continue
+		if(ismob(A)) //Don't target mobs with keys that have logged out.
+			var/mob/M = A
+			if(M.key && !M.client)
+				continue
 		if(!isturf(A.loc))
 			A = A.loc
 		var/datum/callback/cb = null
@@ -121,7 +125,7 @@
 		target_mob = user
 		change_stance(HOSTILE_STANCE_ATTACK)
 
-mob/living/simple_animal/hostile/hitby(atom/movable/AM as mob|obj,var/speed = THROWFORCE_SPEED_DIVISOR)//Standardization and logging -Sieve
+/mob/living/simple_animal/hostile/hitby(atom/movable/AM as mob|obj,var/speed = THROWFORCE_SPEED_DIVISOR)//Standardization and logging -Sieve
 	..()
 	if(istype(AM,/obj/))
 		var/obj/O = AM
@@ -170,6 +174,10 @@ mob/living/simple_animal/hostile/hitby(atom/movable/AM as mob|obj,var/speed = TH
 	if(QDELETED(target_mob) || SA_attackable(target_mob))
 		LoseTarget()
 		return 0
+	if(ismob(target_mob)) //target_mob is not in fact always a mob
+		if(target_mob.key && !target_mob.client)
+			LoseTarget()
+			return 0
 	if(!(target_mob in targets))
 		LoseTarget()
 		return 0

html/changelogs/mattatlas-hivebotdisaster.yml

@@ -0,0 +1,41 @@
+################################
+# Example Changelog File
+#
+# Note: This file, and files beginning with ".", and files that don't end in ".yml" will not be read. If you change this file, you will look really dumb.
+#
+# Your changelog will be merged with a master changelog. (New stuff added only, and only on the date entry for the day it was merged.)
+# When it is, any changes listed below will disappear.
+#
+# Valid Prefixes:
+#   bugfix
+#   wip (For works in progress)
+#   tweak
+#   soundadd
+#   sounddel
+#   rscadd (general adding of nice things)
+#   rscdel (general deleting of nice things)
+#   imageadd
+#   imagedel
+#   maptweak
+#   spellcheck (typo fixes)
+#   experiment
+#   balance
+#   admin
+#   backend
+#   security
+#   refactor
+#################################
+
+# Your name.
+author: MattAtlas
+
+# Optional: Remove this file after generating master changelog.  Useful for PR changelogs that won't get used again.
+delete-after: True
+
+# Any changes you've made.  See valid prefix list above.
+# INDENT WITH TWO SPACES.  NOT TABS.  SPACES.
+# SCREW THIS UP AND IT WON'T WORK.
+# Also, all entries are changed into a single [] after a master changelog generation. Just remove the brackets when you add new entries.
+# Please surround your changes in  double quotes ("), as certain characters otherwise screws up compiling. The quotes will not show up in the changelog.
+changes:
+  - rscadd: "Hostile mobs no longer target players that have logged out."