push

modular_sand/code/modules/character_trading/character_trading.dm

@@ -0,0 +1,41 @@
+#define REDEMPTION_CODE_GENERATION_ATTEMPTS 5
+
+GLOBAL_LIST_INIT(character_offers, list())
+
+/datum/character_offer_instance
+	var/owner_ckey
+	var/savefile/character_savefile
+	var/redemption_code
+
+/datum/character_offer_instance/New(owner_ckey, character_savefile)
+	. = ..()
+	if(!owner_ckey || !character_savefile)
+		qdel(src)
+		return
+	src.owner_ckey = owner_ckey
+	src.character_savefile = character_savefile
+
+	// 5 digit number, no fucking way some idiot is guessing this
+	var/attempts = 0
+	while(!redemption_code || LAZYFIND(GLOB.character_offers, redemption_code))
+		if(attempts >= REDEMPTION_CODE_GENERATION_ATTEMPTS)
+			qdel(src)
+			return
+		redemption_code = "[random_nukecode()]"
+		attempts++
+
+	LAZYSET(GLOB.character_offers, redemption_code, src)
+
+/datum/character_offer_instance/Destroy(force, ...)
+	var/datum/preferences/to_remove = LAZYACCESS(GLOB.preferences_datums, owner_ckey)
+	to_remove.offer = null
+	LAZYREMOVE(GLOB.character_offers, redemption_code)
+	owner_ckey = null
+	character_savefile = null
+	redemption_code = null
+	return ..()
+
+/datum/character_offer_instance/proc/on_quit()
+	qdel(src)
+
+#undef REDEMPTION_CODE_GENERATION_ATTEMPTS

modular_sand/code/modules/client/preferences.dm

@@ -11,6 +11,8 @@
 	/// Chance of moaning during an interaction
 	var/moaning_multiplier = 65
 
+	var/datum/character_offer_instance/offer
+
 //SANDSTORM EDIT - extra language
 /datum/preferences/proc/SetLanguage(mob/user)
 	var/list/dat = list()