Pylon tweaks (#4571)

# About the pull request

Comms relays now have a cooldown for how often they can get pylon'd.
Once it gets destroyed you have to wait five minutes to turn a cluster
into a pylon again. (Which then takes five minutes to get a benefit at
all)

Pylon bonus cap now accounts for stored larva.

# Explain why it's good for the game

Constantly spamming pylons was pretty frustrating and the pylon bonus
cap just had an oversight with not counting stored larva.

# Testing Photographs and Procedure
<details>
<summary>Screenshots & Videos</summary>

Put screenshots and videos here with an empty line between the
screenshots and the `<details>` tags.

</details>


# Changelog

:cl: Morrow
balance: Comms relays now have a five minute cooldown to be re-pylon'd
after a pylon was destroyed
fix: Pylons now account for stored larva
/:cl:

code/__DEFINES/xeno.dm

@@ -174,6 +174,10 @@
 /// The time it takes for a pylon to give one larva while activated
 #define XENO_PYLON_ACTIVATION_COOLDOWN (5 MINUTES)
 
+/// The time until you can re-corrupt a comms relay after the last pylon was destroyed
+#define XENO_PYLON_DESTRUCTION_DELAY (5 MINUTES)
+
+
 /// The time against away_timer when an AFK xeno larva can be replaced
 #define XENO_LEAVE_TIMER_LARVA 80 //80 seconds
 /// The time against away_timer when an AFK xeno (not larva) can be replaced

code/game/machinery/telecomms/presets.dm

@@ -218,12 +218,20 @@ GLOBAL_LIST_EMPTY(all_static_telecomms_towers)
 	/// Held image for the current overlay on the tower from xeno corruption
 	var/image/corruption_image
 
+	/// Holds the delay for when a cluster can recorrupt the comms tower after a pylon has been destroyed
+	COOLDOWN_DECLARE(corruption_delay)
+
 /obj/structure/machinery/telecomms/relay/preset/tower/mapcomms/Initialize()
 	. = ..()
 
 	RegisterSignal(src, COMSIG_ATOM_TURF_CHANGE, PROC_REF(register_with_turf))
 	register_with_turf()
 
+/obj/structure/machinery/telecomms/relay/preset/tower/mapcomms/get_examine_text(mob/user)
+	. = ..()
+	if(isxeno(user) && !COOLDOWN_FINISHED(src, corruption_delay))
+		. += SPAN_XENO("Corruption cooldown: [(COOLDOWN_TIMELEFT(src, corruption_delay) / (1 SECONDS))] seconds.")
+
 /obj/structure/machinery/telecomms/relay/preset/tower/mapcomms/attack_hand(mob/user)
 	if(user.action_busy)
 		return
@@ -323,6 +331,10 @@ GLOBAL_LIST_EMPTY(all_static_telecomms_towers)
 		addtimer(CALLBACK(src, PROC_REF(handle_xeno_acquisition), weeded_turf), (XENO_COMM_ACQUISITION_TIME - ROUND_TIME))
 		return
 
+	if(!COOLDOWN_FINISHED(src, corruption_delay))
+		addtimer(CALLBACK(src, PROC_REF(handle_xeno_acquisition), weeded_turf), (COOLDOWN_TIMELEFT(src, corruption_delay)))
+		return
+
 	var/obj/effect/alien/weeds/node/pylon/cluster/parent_node = weeded_turf.weeds.parent
 
 	var/obj/effect/alien/resin/special/cluster/cluster_parent = parent_node.resin_parent
@@ -362,6 +374,8 @@ GLOBAL_LIST_EMPTY(all_static_telecomms_towers)
 
 	overlays -= corruption_image
 
+	COOLDOWN_START(src, corruption_delay, XENO_PYLON_DESTRUCTION_DELAY)
+
 /// Handles moving the overlay from growing to idle
 /obj/structure/machinery/telecomms/relay/preset/tower/mapcomms/proc/switch_to_idle_corruption()
 	if(!corrupted)

code/modules/cm_aliens/structures/special/pylon_core.dm

@@ -196,10 +196,12 @@
 		if(!xeno.counts_for_slots)
 			hive_xenos -= xeno
 
-	if(length(hive_xenos) > (length(GLOB.alive_human_list) * ENDGAME_LARVA_CAP_MULTIPLIER))
+	var/real_total_xeno_count = length(hive_xenos) + linked_hive.stored_larva
+
+	if(real_total_xeno_count > (length(GLOB.alive_human_list) * ENDGAME_LARVA_CAP_MULTIPLIER))
 		return
 
-	linked_hive.partial_larva += length(hive_xenos) * LARVA_ADDITION_MULTIPLIER
+	linked_hive.partial_larva += real_total_xeno_count * LARVA_ADDITION_MULTIPLIER
 	linked_hive.convert_partial_larva_to_full_larva()
 	linked_hive.hive_ui.update_burrowed_larva()