Merge pull request #11921 from Couls/TG-chat-subsystem

Port TG's chat subsystem

code/__DEFINES/misc.dm

@@ -353,6 +353,8 @@
 #define TRIGGER_GUARD_NONE 0
 #define TRIGGER_GUARD_NORMAL 1
 
+#define CLIENT_FROM_VAR(I) (ismob(I) ? I:client : (istype(I, /client) ? I : (istype(I, /datum/mind) ? I:current?:client : null)))
+
 // Macro to get the current elapsed round time, rather than total world runtime
 #define ROUND_TIME (SSticker.round_start_time ? (world.time - SSticker.round_start_time) : 0)
 

code/__DEFINES/subsystems.dm

@@ -79,7 +79,8 @@
 #define INIT_ORDER_NANOMOB -23
 #define INIT_ORDER_SQUEAK -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)
@@ -111,6 +112,7 @@
 #define FIRE_PRIORITY_MOBS			100
 #define FIRE_PRIORITY_NANOUI		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.
 

code/controllers/subsystem/chat.dm

@@ -0,0 +1,65 @@
+SUBSYSTEM_DEF(chat)
+	name = "Chat"
+	flags = SS_TICKER|SS_NO_INIT
+	wait = 1
+	priority = FIRE_PRIORITY_CHAT
+	init_order = INIT_ORDER_CHAT
+
+	var/list/payload = list()
+
+
+/datum/controller/subsystem/chat/fire()
+	for(var/i in payload)
+		var/client/C = i
+		C << output(payload[C], "browseroutput:output")
+		payload -= C
+
+		if(MC_TICK_CHECK)
+			return
+
+
+/datum/controller/subsystem/chat/proc/queue(target, message, flag)
+	if(!target || !message)
+		return
+
+	if(!istext(message))
+		stack_trace("to_chat called with invalid input type")
+		return
+
+	if(target == world)
+		target = GLOB.clients
+
+	//Some macros remain in the string even after parsing and fuck up the eventual output
+	message = replacetext(message, "\improper", "")
+	message = replacetext(message, "\proper", "")
+	message += "<br>"
+
+
+	//url_encode it TWICE, this way any UTF-8 characters are able to be decoded by the Javascript.
+	//Do the double-encoding here to save nanoseconds
+	var/twiceEncoded = url_encode(url_encode(message))
+
+	if(islist(target))
+		for(var/I in target)
+			var/client/C = CLIENT_FROM_VAR(I) //Grab us a client if possible
+
+			if(!C?.chatOutput || C.chatOutput.broken) //A player who hasn't updated his skin file.
+				continue
+
+			if(!C.chatOutput.loaded) //Client still loading, put their messages in a queue
+				C.chatOutput.messageQueue += message
+				continue
+
+			payload[C] += twiceEncoded
+
+	else
+		var/client/C = CLIENT_FROM_VAR(target) //Grab us a client if possible
+
+		if(!C?.chatOutput || C.chatOutput.broken) //A player who hasn't updated his skin file.
+			return
+
+		if(!C.chatOutput.loaded) //Client still loading, put their messages in a queue
+			C.chatOutput.messageQueue += message
+			return
+
+		payload[C] += twiceEncoded

goon/code/datums/browserOutput.dm

@@ -222,7 +222,7 @@ var/to_chat_filename
 var/to_chat_line
 var/to_chat_src
 // Call using macro: to_chat(target, message, flag)
-/proc/__to_chat(target, message, flag)
+/proc/to_chat_immediate(target, message, flag)
 	if(!is_valid_tochat_message(message) || !is_valid_tochat_target(target))
 		target << message
 
@@ -279,3 +279,9 @@ var/to_chat_src
 			output_message += "&[url_encode(flag)]"
 
 		target << output(output_message, "browseroutput:output")
+
+/proc/__to_chat(target, message, flag)
+	if(Master.current_runlevel == RUNLEVEL_INIT || !SSchat?.initialized)
+		to_chat_immediate(target, message, flag)
+		return
+	SSchat.queue(target, message, flag)

paradise.dme

@@ -205,6 +205,7 @@
 #include "code\controllers\subsystem\alarm.dm"
 #include "code\controllers\subsystem\assets.dm"
 #include "code\controllers\subsystem\atoms.dm"
+#include "code\controllers\subsystem\chat.dm"
 #include "code\controllers\subsystem\events.dm"
 #include "code\controllers\subsystem\fires.dm"
 #include "code\controllers\subsystem\garbage.dm"