i think it works

MAJOR antag backend update
- you cannot bruteforce the pen anymore
- uplink now uses bitflag to lock purchases
- poplock is handled entirely by the buyable uplink items
- tgui antag intro (for selected ones)

code/_globalvars/lists/flavor_misc.dm

@@ -216,7 +216,13 @@ GLOBAL_LIST_INIT(jumpsuitlist, list(PREF_SUIT, PREF_SKIRT))
 #define UPLINK_PDA		"PDA"
 #define UPLINK_RADIO	"Radio"
 #define UPLINK_PEN		"Pen" //like a real spy!
-GLOBAL_LIST_INIT(uplink_spawn_loc_list, list(UPLINK_PDA, UPLINK_RADIO, UPLINK_PEN))
+#define UPLINK_IMPLANT "Implant"
+#define UPLINK_IMPLANT_WITH_PRICE "[UPLINK_IMPLANT] (-[UPLINK_IMPLANT_TELECRYSTAL_COST] TC)"
+// What we show to the user
+GLOBAL_LIST_INIT(uplink_spawn_loc_list, list(UPLINK_PDA, UPLINK_RADIO, UPLINK_PEN, UPLINK_IMPLANT_WITH_PRICE))
+// What is actually saved; if the uplink implant price changes, it won't affect save files then
+GLOBAL_LIST_INIT(uplink_spawn_loc_list_save, list(UPLINK_PDA, UPLINK_RADIO, UPLINK_PEN, UPLINK_IMPLANT))
+
 
 //List of cached alpha masked icons.
 GLOBAL_LIST_EMPTY(alpha_masked_worn_icons)

code/_globalvars/lists/objects.dm

@@ -19,7 +19,6 @@ GLOBAL_LIST(chemical_reactions_list)				//list of all /datum/chemical_reaction d
 GLOBAL_LIST(chemical_reagents_list)				//list of all /datum/reagent datums indexed by reagent id. Used by chemistry stuff
 GLOBAL_LIST_EMPTY(tech_list)					//list of all /datum/tech datums indexed by id.
 GLOBAL_LIST_EMPTY(surgeries_list)				//list of all surgeries by name, associated with their path.
-GLOBAL_LIST_EMPTY(uplink_items)					//list of all uplink item typepaths, ascendingly sorted by their initial name.
 GLOBAL_LIST_EMPTY(uplink_categories)			//list of all uplink categories, listed by the order they are loaded in code. Be careful.
 GLOBAL_LIST_EMPTY(crafting_recipes)				//list of all table craft recipes
 GLOBAL_LIST_EMPTY(rcd_list)					//list of Rapid Construction Devices.