Prevent re-selection of targets on cryo (#27635)

* Prevent re-selection of targets on cryo

* goodbye documentation

code/__DEFINES/gamemode.dm

@@ -12,6 +12,7 @@
 #define TARGET_INVALID_NOTHEAD			11
 #define TARGET_INVALID_CULTIST			12
 #define TARGET_INVALID_CULT_CONVERTABLE	13
+#define TARGET_CRYOING					14
 
 //gamemode istype helpers
 #define GAMEMODE_IS_CULT		(SSticker && istype(SSticker.mode, /datum/game_mode/cult))

code/__HELPERS/trait_helpers.dm

@@ -243,6 +243,7 @@ Remember to update _globalvars/traits.dm if you're adding/removing/renaming trai
 #define TRAIT_EMP_RESIST "emp_resist" //The mob will take less damage from EMPs
 #define TRAIT_MINDFLAYER_NULLIFIED "flayer_nullified" //The mindflayer will not be able to activate their abilities, or drain swarms from people
 #define TRAIT_FLYING "flying"
+#define TRAIT_CRYO_DESPAWNING "cryo_despawning" // dont adminbus this please
 
 //***** MIND TRAITS *****/
 #define TRAIT_HOLY "is_holy" // The mob is holy in regards to religion

code/game/gamemodes/objective.dm

@@ -109,6 +109,8 @@ GLOBAL_LIST_INIT(potential_theft_objectives, (subtypesof(/datum/theft_objective)
 		return TARGET_INVALID_GOLEM
 	if(possible_target.offstation_role)
 		return TARGET_INVALID_EVENT
+	if(HAS_TRAIT(possible_target.current, TRAIT_CRYO_DESPAWNING))
+		return TARGET_CRYOING
 
 /datum/objective/is_invalid_target(datum/mind/possible_target)
 	. = ..()
@@ -165,9 +167,6 @@ GLOBAL_LIST_INIT(potential_theft_objectives, (subtypesof(/datum/theft_objective)
 	target = null
 	INVOKE_ASYNC(src, PROC_REF(post_target_cryo), owners)
 
-/**
-  * Called a tick after when the objective's target goes to cryo.
-  */
 /datum/objective/proc/post_target_cryo(list/owners)
 	find_target()
 	if(!target)

code/game/machinery/cryopod.dm

@@ -343,6 +343,8 @@
 	items -= occupant // Don't delete the occupant
 	items -= announce // or the autosay radio.
 
+	ADD_TRAIT(occupant, TRAIT_CRYO_DESPAWNING, TRAIT_GENERIC)
+
 	for(var/obj/item/I in items)
 		if(istype(I, /obj/item/pda))
 			var/obj/item/pda/P = I