Ports "Chat Subsystem ported from TerraGov-Marine-Corps"

code/__DEFINES/misc.dm

@@ -499,3 +499,6 @@ GLOBAL_LIST_INIT(pda_reskins, list(PDA_SKIN_CLASSIC = 'icons/obj/pda.dmi', PDA_S
 
 #define VOMIT_TOXIC 1
 #define VOMIT_PURPLE 2
+
+//Misc text define. Does 4 spaces. Used as a makeshift tabulator.
+#define FOURSPACES "    "

code/__DEFINES/subsystems.dm

@@ -83,7 +83,9 @@
 #define INIT_ORDER_SHUTTLE			-21
 #define INIT_ORDER_MINOR_MAPPING	-40
 #define INIT_ORDER_PATH				-50
-#define INIT_ORDER_PERSISTENCE		-100
+#define INIT_ORDER_PERSISTENCE		-95
+#define INIT_ORDER_CHAT				-100 //Should be last to ensure chat remains smooth during init.
+
 
 // Subsystem fire priority, from lowest to highest priority
 // If the subsystem isn't listed here it's either DEFAULT or PROCESS (if it's a processing subsystem child)
@@ -114,6 +116,7 @@
 #define FIRE_PRIORITY_MOBS			100
 #define FIRE_PRIORITY_TGUI			110
 #define FIRE_PRIORITY_TICKER		200
+#define FIRE_PRIORITY_CHAT			400
 #define FIRE_PRIORITY_OVERLAYS		500
 #define FIRE_PRIORITY_INPUT			1000 // This must always always be the max highest priority. Player input must never be lost.