Merge pull request #31374 from MrStonedOne/highpopmode

High pop reduced MC processing mode.

code/__DEFINES/configuration.dm

@@ -2,6 +2,7 @@
 #define CONFIG_DEF(X) /datum/config_entry/##X { resident_file = CURRENT_RESIDENT_FILE }; /datum/config_entry/##X
 #define CONFIG_GET(X) global.config.Get(/datum/config_entry/##X)
 #define CONFIG_SET(X, Y) global.config.Set(/datum/config_entry/##X, ##Y)
+#define CONFIG_TWEAK(X) /datum/config_entry/##X
 
 #define CONFIG_MAPS_FILE "maps.txt"
 

code/controllers/configuration/entries/config.dm

@@ -349,3 +349,26 @@ CONFIG_DEF(number/error_msg_delay)	// How long to wait between messaging admins
 CONFIG_DEF(flag/irc_announce_new_game)
 
 CONFIG_DEF(flag/debug_admin_hrefs)
+
+
+CONFIG_DEF(number/mc_tick_rate/base_mc_tick_rate)
+	integer = FALSE
+	value = 1
+
+CONFIG_DEF(number/mc_tick_rate/high_pop_mc_tick_rate)
+	integer = FALSE
+	value = 1.1
+
+CONFIG_DEF(number/mc_tick_rate/high_pop_mc_mode_amount)
+	value = 65
+
+CONFIG_DEF(number/mc_tick_rate/disable_high_pop_mc_mode_amount)
+	value = 60
+
+CONFIG_TWEAK(number/mc_tick_rate)
+	abstract_type = /datum/config_entry/number/mc_tick_rate
+
+CONFIG_TWEAK(number/mc_tick_rate/ValidateAndSet(str_val))
+	. = ..()
+	if (.)
+		Master.UpdateTickRate()

code/controllers/master.dm

@@ -573,3 +573,13 @@ GLOBAL_REAL(Master, /datum/controller/master) = new
 	for(var/S in subsystems)
 		var/datum/controller/subsystem/SS = S
 		SS.StopLoadingMap()
+
+
+/datum/controller/master/proc/UpdateTickRate()
+	if (!processing)
+		return
+	var/client_count = length(GLOB.clients)
+	if (client_count < CONFIG_GET(number/mc_tick_rate/disable_high_pop_mc_mode_amount))
+		processing = CONFIG_GET(number/mc_tick_rate/base_mc_tick_rate)
+	else if (client_count > CONFIG_GET(number/mc_tick_rate/high_pop_mc_mode_amount))
+		processing = CONFIG_GET(number/mc_tick_rate/high_pop_mc_tick_rate)

code/modules/client/client_procs.dm

@@ -350,6 +350,8 @@ GLOBAL_LIST(external_rsc_urls)
 		if (menuitem)
 			menuitem.Load_checked(src)
 
+	Master.UpdateTickRate()
+
 //////////////
 //DISCONNECT//
 //////////////
@@ -386,6 +388,7 @@ GLOBAL_LIST(external_rsc_urls)
 	if(movingmob != null)
 		movingmob.client_mobs_in_contents -= mob
 		UNSETEMPTY(movingmob.client_mobs_in_contents)
+	Master.UpdateTickRate()
 	return ..()
 
 /client/Destroy()

config/config.txt

@@ -232,9 +232,13 @@ ALLOW_HOLIDAYS
 ##This is currently a testing optimized setting. A good value for production would be 98.
 TICK_LIMIT_MC_INIT 500
 
-##Defines the ticklag for the world.  0.9 is the normal one, 0.5 is smoother.
+##Defines the ticklag for the world. Ticklag is the amount of time between game ticks (aka byond ticks) (in 1/10ths of a second).
+##	This also controls the client network update rate, as well as the default client fps
 TICKLAG 0.5
 
+##Can also be set as per-second value, the following value is identical to the above.
+#FPS 20
+
 ## Comment this out to disable automuting
 #AUTOMUTE_ON
 
@@ -361,3 +365,23 @@ MINUTE_TOPIC_LIMIT 100
 
 ## Allow admin hrefs that don't use the new token system, will eventually be removed
 DEBUG_ADMIN_HREFS
+
+###Master Controller High Pop Mode###
+
+##The Master Controller(MC) is the primary system controlling timed tasks and events in SS13 (lobby timer, game checks, lighting updates, atmos, etc)
+##Default base MC tick rate (1 = process every "byond tick" (see: tick_lag/fps config settings), 2 = process every 2 byond ticks, etc)
+##	Setting this to 0 will prevent the Master Controller from ticking
+BASE_MC_TICK_RATE 1
+
+##High population MC tick rate 
+##	Byond rounds timer values UP, but the tick rate is modified with heuristics during lag spites so setting this to something like 2
+##	will make it run every 2 byond ticks, but will also double the effect of anti-lag heuristics. You can instead set it to something like
+##	1.1 to make it run every 2 byond ticks, but only increase the effect of anti-lag heuristics by 10%. or 1.5 for 50%.
+##	(As an aside, you could in theory also reduce the effect of anti-lag heuristics in the base tick rate by setting it to something like 0.5)
+HIGH_POP_MC_TICK_RATE 1.1
+
+##Engage high pop mode if player count raises above this (Player in this context means any connected user. Lobby, ghost or in-game all count)
+HIGH_POP_MC_MODE_AMOUNT 65
+
+##Disengage high pop mode if player count drops below this
+DISABLE_HIGH_POP_MC_MODE_AMOUNT 60