Actually add support for the active API version

src/DMAPI/tgs.dm

@@ -183,7 +183,7 @@
 	return
 
 //Returns TRUE if the world was launched under the server tools and the API matches, FALSE otherwise
-//No function below this succeeds if it returns FALSE
+//No function below this succeeds if it returns FALSE or if TgsNew() has yet to be called
 /world/proc/TgsAvailable()
 	return
 
@@ -191,6 +191,10 @@
 /world/proc/TgsVersion()
 	return
 
+//Gets the current /datum/tgs_version of the DMAPI being used
+/world/proc/TgsApiVersion()
+	return
+
 //Gets the name of the TGS instance running the game
 /world/proc/TgsInstanceName()
 	return

src/DMAPI/tgs/core/core.dm

@@ -90,6 +90,11 @@
 	if(api)
 		return api.version
 
+/world/TgsApiVersion()
+	var/datum/tgs_api/api = TGS_READ_GLOBAL(tgs)
+	if(api)
+		return api.ApiVersion()
+
 /world/TgsInstanceName()
 	var/datum/tgs_api/api = TGS_READ_GLOBAL(tgs)
 	if(api)

src/DMAPI/tgs/v3210/api.dm

@@ -39,7 +39,7 @@
 	var/warned_custom_commands = FALSE
 
 /datum/tgs_api/v3210/ApiVersion()
-	return "3.2.1.0"
+	return new /datum/tgs_version("3.2.1.0")
 
 /datum/tgs_api/v3210/proc/trim_left(text)
 	for (var/i = 1 to length(text))

src/DMAPI/tgs/v4/api.dm

@@ -35,9 +35,9 @@
 	var/security_level
 
 	var/requesting_new_port = FALSE
-	
+
 	var/list/intercepted_message_queue
-	
+
 	var/list/custom_commands
 
 	var/list/cached_test_merges
@@ -49,7 +49,7 @@
 	var/list/last_interop_response
 
 /datum/tgs_api/v4/ApiVersion()
-	return "4.0.0.0"
+	return new /datum/tgs_version("4.0.0.0")
 
 /datum/tgs_api/v4/OnWorldNew(datum/tgs_event_handler/event_handler, minimum_required_security_level)
 	json_path = world.params[TGS4_PARAM_INFO_JSON]
@@ -185,7 +185,7 @@
 		data = list()
 	data[TGS4_PARAMETER_COMMAND] = command
 	var/json = json_encode(data)
-	
+
 	while(requesting_new_port && !override_requesting_new_port)
 		sleep(1)
 
@@ -199,7 +199,7 @@
 		//request a new port
 		export_lock = FALSE
 		var/list/new_port_json = Export(TGS4_COMM_NEW_PORT, list(TGS4_PARAMETER_DATA = "[world.port]"), TRUE)	//stringify this on purpose
-		
+
 		if(!new_port_json)
 			TGS_ERROR_LOG("No new port response from server![TGS4_PORT_CRITFAIL_MESSAGE]")
 			del(world)
@@ -236,7 +236,7 @@
 	var/list/result = Export(TGS4_COMM_WORLD_REBOOT)
 	if(!result)
 		return
-	
+
 	//okay so the standard TGS4 proceedure is: right before rebooting change the port to whatever was sent to us in the above json's data parameter
 
 	var/port = result[TGS4_PARAMETER_DATA]
@@ -255,7 +255,7 @@
 
 /datum/tgs_api/v4/TestMerges()
 	return cached_test_merges
-	
+
 /datum/tgs_api/v4/EndProcess()
 	Export(TGS4_COMM_END_PROCESS)
 

src/DMAPI/tgs/v5/api.dm

@@ -18,7 +18,7 @@
 	var/datum/tgs_event_handler/event_handler
 
 /datum/tgs_api/v5/ApiVersion()
-	return "5.0.0"
+	return new /datum/tgs_version("5.0.0")
 
 /datum/tgs_api/v5/OnWorldNew(datum/tgs_event_handler/event_handler, minimum_required_security_level)
 	src.event_handler = event_handler