Merge remote-tracking branch 'upstream/master'

code/game/turfs/simulated/openspace.dm

@@ -38,7 +38,7 @@ GLOBAL_DATUM_INIT(openspace_backdrop_one_for_all, /atom/movable/openspace_backdr
 
 /turf/open/openspace/Initialize(mapload) // handle plane and layer here so that they don't cover other obs/turfs in Dream Maker
 	. = ..()
-	vis_contents += GLOB.openspace_backdrop_one_for_all //Special grey square for projecting backdrop darkness filter on it.
+	overlays += GLOB.openspace_backdrop_one_for_all //Special grey square for projecting backdrop darkness filter on it.
 	return INITIALIZE_HINT_LATELOAD
 
 /turf/open/openspace/LateInitialize()

code/game/world.dm

@@ -14,6 +14,11 @@ GLOBAL_LIST(topic_status_cache)
 		LIBCALL(dll, "auxtools_init")()
 		enable_debugging()
 
+#ifdef USE_BYOND_TRACY
+	#warn USE_BYOND_TRACY is enabled
+	init_byond_tracy()
+#endif
+
 	world.Profile(PROFILE_START)
 	log_world("World loaded at [TIME_STAMP("hh:mm:ss", FALSE)]!")
 
@@ -369,3 +374,19 @@ GLOBAL_LIST(topic_status_cache)
 
 /world/proc/on_tickrate_change()
 	SStimer?.reset_buckets()
+
+/world/proc/init_byond_tracy()
+	var/library
+
+	switch (system_type)
+		if (MS_WINDOWS)
+			library = "prof.dll"
+		if (UNIX)
+			library = "libprof.so"
+		else
+			CRASH("Unsupported platform: [system_type]")
+
+	var/init_result = call_ext(library, "init")("block")
+	if (init_result != "0")
+		CRASH("Error initializing byond-tracy: [init_result]")
+