Maptick lag minimization port (#12066)

* extools.dll

* backend

* queued pipenet builds

* oh yeah we don't have that

* wow

* Update air.dm

code/__DEFINES/_tick.dm

@@ -1,13 +1,28 @@
-#define TICK_LIMIT_RUNNING 80
+/// Percentage of tick to leave for master controller to run
+#define MAPTICK_MC_MIN_RESERVE 70
+/// internal_tick_usage is updated every tick by extools
+#define MAPTICK_LAST_INTERNAL_TICK_USAGE ((GLOB.internal_tick_usage / world.tick_lag) * 100)
+/// Tick limit while running normally
+#define TICK_BYOND_RESERVE 2
+#define TICK_LIMIT_RUNNING (max(100 - TICK_BYOND_RESERVE - MAPTICK_LAST_INTERNAL_TICK_USAGE, MAPTICK_MC_MIN_RESERVE))
+/// Tick limit used to resume things in stoplag
 #define TICK_LIMIT_TO_RUN 70
+/// Tick limit for MC while running
 #define TICK_LIMIT_MC 70
-#define TICK_LIMIT_MC_INIT_DEFAULT 98
+/// Tick limit while initializing
+#define TICK_LIMIT_MC_INIT_DEFAULT (100 - TICK_BYOND_RESERVE)
 
-#define TICK_USAGE world.tick_usage //for general usage
-#define TICK_USAGE_REAL world.tick_usage    //to be used where the result isn't checked
+/// for general usage of tick_usage
+#define TICK_USAGE world.tick_usage
+/// to be used where the result isn't checked
+#define TICK_USAGE_REAL world.tick_usage
 
+/// Returns true if tick_usage is above the limit
 #define TICK_CHECK ( TICK_USAGE > Master.current_ticklimit )
+/// runs stoplag if tick_usage is above the limit
 #define CHECK_TICK ( TICK_CHECK ? stoplag() : 0 )
 
+/// Returns true if tick usage is above 95, for high priority usage
 #define TICK_CHECK_HIGH_PRIORITY ( TICK_USAGE > 95 )
+/// runs stoplag if tick_usage is above 95, for high priority usage
 #define CHECK_TICK_HIGH_PRIORITY ( TICK_CHECK_HIGH_PRIORITY? stoplag() : 0 )

code/__DEFINES/subsystems.dm

@@ -132,8 +132,15 @@
 
 #define RUNLEVELS_DEFAULT (RUNLEVEL_SETUP | RUNLEVEL_GAME | RUNLEVEL_POSTGAME)
 
-
-
+// SSair run section
+#define SSAIR_PIPENETS 1
+#define SSAIR_ATMOSMACHINERY 2
+#define SSAIR_REACTQUEUE 3
+#define SSAIR_EXCITEDGROUPS 4
+#define SSAIR_HIGHPRESSURE 5
+#define SSAIR_HOTSPOTS 6
+#define SSAIR_SUPERCONDUCTIVITY 7
+#define SSAIR_REBUILD_PIPENETS 8
 
 #define COMPILE_OVERLAYS(A)\
 	if (TRUE) {\