ports lazy templates, uses them for ert stations. distress beacons now start in transit to the ship, and return to their very own ert home

code/__DEFINES/dcs/signals/signals_datum.dm

@@ -64,3 +64,6 @@
 
 // from /proc/update_living_queens() : /mob/living/carbon/xenomorph/queen
 #define COMSIG_HIVE_NEW_QUEEN "hive_new_queen"
+
+/// Fired on the lazy template datum when the template is finished loading. (list/loaded_atom_movables, list/loaded_turfs, list/loaded_areas)
+#define COMSIG_LAZY_TEMPLATE_LOADED "lazy_template_loaded"

code/__DEFINES/shuttles.dm

@@ -96,8 +96,8 @@
 #define MOBILE_SHUTTLE_ID_ERT2 "ert_pmc_shuttle"
 #define MOBILE_SHUTTLE_ID_ERT3 "ert_upp_shuttle"
 #define MOBILE_SHUTTLE_ID_ERT4 "ert_twe_shuttle"
-#define MOBILE_SHUTTLE_ID_ERT_SMALL "ert_rescue_shuttle"
-#define MOBILE_SHUTTLE_ID_ERT_BIG "ert_boarding_shuttle"
+#define MOBILE_SHUTTLE_ID_ERT_SMALL "ert_small_shuttle_north"
+#define MOBILE_SHUTTLE_ID_ERT_BIG "ert_shuttle_big"
 
 #define MOBILE_TRIJENT_ELEVATOR "trijentshuttle2"
 #define STAT_TRIJENT_EMPTY "trijent_empty"
@@ -134,3 +134,11 @@
 #define ESCAPE_SHUTTLE_SOUTH_PREFIX "escape_shuttle_s"
 
 #define ESCAPE_SHUTTLE_DOCK_PREFIX "almayer-hangar-escape-shuttle-"
+
+#define ERT_SHUTTLE_DEFAULT_RECHARGE 90 SECONDS
+
+#define ADMIN_LANDING_PAD_1 "base-ert1"
+#define ADMIN_LANDING_PAD_2 "base-ert2"
+#define ADMIN_LANDING_PAD_3 "base-ert3"
+#define ADMIN_LANDING_PAD_4 "base-ert4"
+#define ADMIN_LANDING_PAD_5 "base-ert5"

code/__HELPERS/lazy_templates.dm

@@ -0,0 +1,10 @@
+GLOBAL_LIST_INIT(lazy_templates, generate_lazy_template_map())
+
+/**
+ * Iterates through all lazy template datums that exist and returns a list of them as an associative list of type -> instance.
+ * */
+/proc/generate_lazy_template_map()
+	. = list()
+	for(var/datum/lazy_template/template as anything in subtypesof(/datum/lazy_template))
+		.[template] = new template
+	return .

code/controllers/subsystem/mapping.dm

@@ -37,6 +37,9 @@ SUBSYSTEM_DEF(mapping)
 	/// list of traits and their associated z leves
 	var/list/z_trait_levels = list()
 
+	/// list of lazy templates that have been loaded
+	var/list/loaded_lazy_templates
+
 //dlete dis once #39770 is resolved
 /datum/controller/subsystem/mapping/proc/HACK_LoadMapConfig()
 	if(!configs)
@@ -423,3 +426,28 @@ SUBSYSTEM_DEF(mapping)
 	if(!MC)
 		return MAIN_SHIP_DEFAULT_NAME
 	return MC.map_name
+
+/datum/controller/subsystem/mapping/proc/lazy_load_template(datum/lazy_template/template_to_load, force = FALSE)
+	RETURN_TYPE(/datum/turf_reservation)
+
+	UNTIL(initialized)
+	var/static/lazy_loading = FALSE
+	UNTIL(!lazy_loading)
+
+	lazy_loading = TRUE
+	. = _lazy_load_template(template_to_load, force)
+	lazy_loading = FALSE
+	return .
+
+/datum/controller/subsystem/mapping/proc/_lazy_load_template(datum/lazy_template/template_to_load, force = FALSE)
+	PRIVATE_PROC(TRUE)
+
+	if(LAZYACCESS(loaded_lazy_templates, template_to_load) && !force)
+		var/datum/lazy_template/template = GLOB.lazy_templates[template_to_load]
+		return template.reservations[1]
+	LAZYSET(loaded_lazy_templates, template_to_load, TRUE)
+
+	var/datum/lazy_template/target = GLOB.lazy_templates[template_to_load]
+	if(!target)
+		CRASH("Attempted to lazy load a template key that does not exist: '[template_to_load]'")
+	return target.lazy_load()

code/datums/emergency_calls/cbrn.dm

@@ -2,6 +2,7 @@
 	name = "CBRN (Squad)"
 	arrival_message = "A CBRN squad has been dispatched to your ship. Stand by."
 	objectives = "Handle the chemical, biological, radiological, or nuclear threat. Further orders may be provided."
+	home_base = /datum/lazy_template/ert/weyland_station
 	mob_min = 3
 	mob_max = 5
 	max_heavies = 0

code/datums/emergency_calls/clf.dm

@@ -8,6 +8,7 @@
 	objectives = "Assault the USCM, and sabotage as much as you can. Ensure any survivors escape in your custody."
 	probability = 20
 	hostility = TRUE
+	home_base = /datum/lazy_template/ert/clf_station
 	var/max_synths = 1
 	var/synths = 0
 

code/datums/emergency_calls/cmb.dm

@@ -3,6 +3,7 @@
 	name = "CMB - Colonial Marshals Patrol Team (Friendly)"
 	mob_max = 5
 	probability = 10
+	home_base = /datum/lazy_template/ert/weyland_station
 
 	var/max_synths = 1
 	var/synths = 0

code/datums/emergency_calls/deathsquad.dm

@@ -9,7 +9,8 @@
 	arrival_message = "'!`2*%slau#*jer t*h$em a!l%. le&*ve n(o^ w&*nes%6es.*v$e %#d ou^'"
 	objectives = "Whiteout protocol is in effect for the target. Ensure there are no traces of the infestation or any witnesses."
 	probability = 0
-	shuttle_id = "Distress_PMC"
+	shuttle_id = MOBILE_SHUTTLE_ID_ERT2
+	home_base = /datum/lazy_template/ert/weyland_station
 	name_of_spawn = /obj/effect/landmark/ert_spawns/distress_pmc
 	item_spawn = /obj/effect/landmark/ert_spawns/distress_pmc/item
 	max_medics = 1
@@ -91,7 +92,8 @@
 	mob_max = 8
 	mob_min = 5
 	probability = 0
-	shuttle_id = "Distress_PMC"
+	shuttle_id = MOBILE_SHUTTLE_ID_ERT2
+	home_base = /datum/lazy_template/ert/weyland_station
 	name_of_spawn = /obj/effect/landmark/ert_spawns/distress_pmc
 
 /datum/emergency_call/marsoc/create_member(datum/mind/M, turf/override_spawn_loc)
@@ -120,8 +122,9 @@
 	mob_max = 8
 	mob_min = 5
 	probability = 0
-	shuttle_id = "Distress_PMC"
+	shuttle_id = MOBILE_SHUTTLE_ID_ERT2
 	name_of_spawn = /obj/effect/landmark/ert_spawns/distress_pmc
+	home_base = /datum/lazy_template/ert/weyland_station
 
 /datum/emergency_call/marsoc_covert/create_member(datum/mind/M)
 

code/datums/emergency_calls/emergency_call.dm

@@ -50,13 +50,19 @@
 	var/max_heavies = 1
 	var/max_smartgunners = 1
 	var/shuttle_id = MOBILE_SHUTTLE_ID_ERT1 //Empty shuttle ID means we're not using shuttles (aka spawn straight into cryo)
-	var/auto_shuttle_launch = FALSE
+	var/auto_shuttle_launch = TRUE
 	var/spawn_max_amount = FALSE
 
 	var/ert_message = "An emergency beacon has been activated"
 
 	var/time_required_for_job = 5 HOURS
 
+	/// the shuttle being used by this distress call
+	var/obj/docking_port/mobile/emergency_response/shuttle
+
+	/// the [/datum/lazy_template] we should attempt to spawn in for the return journey
+	var/home_base = /datum/lazy_template/ert/freelancer_station
+
 /datum/game_mode/proc/initialize_emergency_calls()
 	if(all_calls.len) //It's already been set up.
 		return
@@ -269,12 +275,15 @@
 		if(M.client)
 			to_chat(M, SPAN_NOTICE("Distress beacon: [src.name] finalized."))
 
-	var/obj/docking_port/mobile/shuttle = SSshuttle.getShuttle(shuttle_id)
+	if(shuttle_id && !override_spawn_loc)
+		if(!SSmapping.shuttle_templates[shuttle_id])
+			message_admins("Distress beacon: [name] does not have a valid shuttle_id: [shuttle_id]")
+			CRASH("ert called with invalid shuttle_id")
 
-	if(!istype(shuttle))
-		if(shuttle_id) //Cryo distress doesn't have a shuttle
-			message_admins("Warning: Distress shuttle not found.")
-	spawn_items()
+		var/datum/map_template/shuttle/new_shuttle = SSmapping.shuttle_templates[shuttle_id]
+		shuttle = SSshuttle.load_template_to_transit(new_shuttle)
+		shuttle.control_doors("force-lock", force = TRUE, external_only = TRUE)
+		shuttle.home_base = home_base
 
 	if(shuttle && auto_shuttle_launch)
 		var/obj/structure/machinery/computer/shuttle/ert/comp = shuttle.getControlConsole()
@@ -335,6 +344,23 @@
 
 /datum/emergency_call/proc/get_spawn_point(is_for_items)
 	var/landmark
+
+	if(shuttle)
+		if(is_for_items)
+			landmark = SAFEPICK(shuttle.local_landmarks[item_spawn])
+		else
+			landmark = SAFEPICK(shuttle.local_landmarks[name_of_spawn])
+
+		if(landmark)
+			return get_turf(landmark)
+
+		var/list/valid_turfs = list()
+		for(var/turf/open/floor/valid_turf in shuttle.return_turfs())
+			valid_turfs += valid_turf
+
+		if(length(valid_turfs))
+			return pick(valid_turfs)
+
 	if(is_for_items)
 		landmark = SAFEPICK(GLOB.ert_spawns[item_spawn])
 	else

code/datums/emergency_calls/ert_stations.dm

@@ -0,0 +1,14 @@
+/datum/lazy_template/ert/clf_station
+	map_name = "clf_ert_station"
+
+/datum/lazy_template/ert/freelancer_station
+	map_name = "freelancer_ert_station"
+
+/datum/lazy_template/ert/twe_station
+	map_name = "twe_ert_station"
+
+/datum/lazy_template/ert/upp_station
+	map_name = "upp_ert_station"
+
+/datum/lazy_template/ert/weyland_station
+	map_name = "weyland_ert_station"

code/datums/emergency_calls/goons.dm

@@ -2,6 +2,7 @@
 	name = "Weyland-Yutani Corporate Security (Squad)"
 	mob_max = 6
 	probability = 0
+	home_base = /datum/lazy_template/ert/weyland_station
 
 /datum/emergency_call/goon/New()
 	..()

code/datums/emergency_calls/inspection.dm

@@ -125,6 +125,7 @@
 	name = "Inspection - Corporate"
 	mob_max = 2
 	mob_min = 1
+	home_base = /datum/lazy_template/ert/weyland_station
 	name_of_spawn = /obj/effect/landmark/ert_spawns/distress_pmc
 	item_spawn = /obj/effect/landmark/ert_spawns/distress_pmc/item
 	probability = 0
@@ -207,6 +208,7 @@
 	mob_max = 4
 	mob_min = 1
 	probability = 0
+	home_base = /datum/lazy_template/ert/weyland_station
 
 	var/max_synths = 1
 	var/synths = 0
@@ -304,7 +306,7 @@
 	name = "Inspection - Colonial Marshals Ledger Investigation Team"
 	mob_max = 3 //Marshal, Deputy, ICC CL
 	mob_min = 2
-	shuttle_id = "Distress_PMC"
+	shuttle_id = MOBILE_SHUTTLE_ID_ERT2
 
 	max_synths = 0
 	will_spawn_icc_liaison = TRUE

code/datums/emergency_calls/pizza.dm

@@ -6,7 +6,7 @@
 	mob_min = 1
 	arrival_message = "'That'll be... sixteen orders of cheesy fries, eight large double topping pizzas, nine bottles of Four Loko... hello? Is anyone on this ship? Your pizzas are getting cold.'"
 	objectives = "Make sure you get a tip!"
-	shuttle_id = "Distress_Small"
+	shuttle_id = MOBILE_SHUTTLE_ID_ERT_SMALL
 	name_of_spawn = /obj/effect/landmark/ert_spawns/distress_pizza
 	probability = 1
 
@@ -32,7 +32,7 @@
 	name = "Pizza Delivery (Cryo)"
 	probability = 0
 	name_of_spawn = /obj/effect/landmark/ert_spawns/distress_cryo
-	shuttle_id = ""
+	shuttle_id = MOBILE_SHUTTLE_ID_ERT_SMALL
 
 /obj/effect/landmark/ert_spawns/distress_pizza
 	name = "Distress_Pizza"

code/datums/emergency_calls/pmc.dm

@@ -4,7 +4,8 @@
 	name = "Weyland-Yutani PMC (Squad)"
 	mob_max = 6
 	probability = 20
-	shuttle_id = "Distress_PMC"
+	shuttle_id = MOBILE_SHUTTLE_ID_ERT2
+	home_base = /datum/lazy_template/ert/weyland_station
 	name_of_spawn = /obj/effect/landmark/ert_spawns/distress_pmc
 	item_spawn = /obj/effect/landmark/ert_spawns/distress_pmc/item
 

code/datums/emergency_calls/royal_marines.dm

@@ -2,6 +2,7 @@
 	name = "Royal Marines Commando (Squad) (Friendly)"
 	mob_max = 7
 	probability = 15
+	home_base = /datum/lazy_template/ert/twe_station
 	name_of_spawn = /obj/effect/landmark/ert_spawns/distress_twe
 	item_spawn = /obj/effect/landmark/ert_spawns/distress_twe/item
 	max_engineers =  0

code/datums/emergency_calls/upp.dm

@@ -5,7 +5,8 @@
 	name = "UPP Naval Infantry (Squad)"
 	mob_max = 9
 	probability = 20
-	shuttle_id = "Distress_UPP"
+	shuttle_id = MOBILE_SHUTTLE_ID_ERT3
+	home_base = /datum/lazy_template/ert/upp_station
 	name_of_spawn = /obj/effect/landmark/ert_spawns/distress_upp
 	item_spawn = /obj/effect/landmark/ert_spawns/distress_upp/item
 	//1 leader, 1 engineer, 2 medics, 1 specialist, 5 soldiers

code/datums/emergency_calls/upp_commando.dm

@@ -5,7 +5,7 @@
 	mob_max = 6
 	probability = 0
 	objectives = "Stealthily assault the ship. Use your silenced weapons, tranquilizers, and night vision to get the advantage on the enemy. Take out the power systems, comms and engine. Stick together and keep a low profile."
-	shuttle_id = "Distress_UPP"
+	shuttle_id = MOBILE_SHUTTLE_ID_ERT3
 	name_of_spawn = /obj/effect/landmark/ert_spawns/distress_upp
 	item_spawn = /obj/effect/landmark/ert_spawns/distress_upp/item
 	hostility = TRUE