Enhanced delam/tram counter (#75699)

## About The Pull Request

Gives a makeover to the delam and tram hit counters and adds some new
functionality.


![image](https://github.com/tgstation/tgstation/assets/83487515/cbbeb0df-d205-47ed-be6e-e49cea8c4f12)


![image](https://github.com/tgstation/tgstation/assets/83487515/e042d5e8-cb8b-4feb-b3f0-02365cd8fdbf)


![image](https://github.com/tgstation/tgstation/assets/83487515/c2831f7f-639d-40a8-a74f-d4894a4f67c6)


https://github.com/tgstation/tgstation/assets/83487515/871fb0fd-8b92-45c5-877b-c122a034608c

- The signs now remember your last 'best' score and show the crew if
they're trending in the right or wrong direction since the last
incident.
- Safety Moth PSA panel. In the future this will dynamically change
based on the current events, or function as a status display.
- Tram hit counters no longer waste processing every tram hit.
Previously each sign independently managed tracking, which meant that
deconstructing or constructing a sign would reset it to 0 and it would
become out of sync with the other signs.
- Can be repaired, EMP'd

## Why It's Good For The Game

Provide a little motivation to reach for that high score. The PSA
changing to for example, find a locker during a delam event.

## Changelog

🆑 LT3
image: Delam and tram flipsigns have been replaced with information
displays
fix: Tram hit count is centrally managed instead of independently on
each sign, so they won't get out of sync
/🆑

code/controllers/subsystem/persistence.dm

@@ -22,6 +22,9 @@ SUBSYSTEM_DEF(persistence)
 	var/list/obj/structure/sign/picture_frame/photo_frames
 	var/list/obj/item/storage/photo_album/photo_albums
 	var/rounds_since_engine_exploded = 0
+	var/delam_highscore = 0
+	var/tram_hits_this_round = 0
+	var/tram_hits_last_round = 0
 
 /datum/controller/subsystem/persistence/Initialize()
 	load_poly()
@@ -33,7 +36,7 @@ SUBSYSTEM_DEF(persistence)
 	load_randomized_recipes()
 	load_custom_outfits()
 	load_delamination_counter()
-
+	load_tram_counter()
 	load_adventures()
 	return SS_INIT_SUCCESS
 
@@ -48,6 +51,8 @@ SUBSYSTEM_DEF(persistence)
 	save_scars()
 	save_custom_outfits()
 	save_delamination_counter()
+	if(SStramprocess.can_fire)
+		save_tram_counter()
 
 ///Loads up Poly's speech buffer.
 /datum/controller/subsystem/persistence/proc/load_poly()
@@ -531,19 +536,35 @@ SUBSYSTEM_DEF(persistence)
 
 	WRITE_FILE(file, json_encode(data))
 
-/// Location where we save the information about how many rounds it has been since the engine blew up
+/// Location where we save the information about how many rounds it has been since the engine blew up/tram hits
 #define DELAMINATION_COUNT_FILEPATH "data/rounds_since_delamination.txt"
+#define DELAMINATION_HIGHSCORE_FILEPATH "data/delamination_highscore.txt"
+#define TRAM_COUNT_FILEPATH "data/tram_hits_last_round.txt"
 
 /datum/controller/subsystem/persistence/proc/load_delamination_counter()
 	if (!fexists(DELAMINATION_COUNT_FILEPATH))
 		return
 	rounds_since_engine_exploded = text2num(file2text(DELAMINATION_COUNT_FILEPATH))
-	for (var/obj/structure/sign/delamination_counter/sign as anything in GLOB.map_delamination_counters)
-		sign.update_count(rounds_since_engine_exploded)
+	if (fexists(DELAMINATION_HIGHSCORE_FILEPATH))
+		delam_highscore = text2num(file2text(DELAMINATION_HIGHSCORE_FILEPATH))
+	for (var/obj/machinery/incident_display/sign as anything in GLOB.map_delamination_counters)
+		sign.update_delam_count(rounds_since_engine_exploded, delam_highscore)
 
 /datum/controller/subsystem/persistence/proc/save_delamination_counter()
 	rustg_file_write("[rounds_since_engine_exploded + 1]", DELAMINATION_COUNT_FILEPATH)
+	if((rounds_since_engine_exploded + 1) > delam_highscore)
+		rustg_file_write("[rounds_since_engine_exploded + 1]", DELAMINATION_HIGHSCORE_FILEPATH)
+
+/datum/controller/subsystem/persistence/proc/load_tram_counter()
+	if(!fexists(TRAM_COUNT_FILEPATH))
+		return
+	tram_hits_last_round = text2num(file2text(TRAM_COUNT_FILEPATH))
+
+/datum/controller/subsystem/persistence/proc/save_tram_counter()
+		rustg_file_write("[tram_hits_this_round]", TRAM_COUNT_FILEPATH)
 
 #undef DELAMINATION_COUNT_FILEPATH
+#undef DELAMINATION_HIGHSCORE_FILEPATH
+#undef TRAM_COUNT_FILEPATH
 #undef FILE_RECENT_MAPS
 #undef KEEP_ROUNDS_MAP