[MIRROR] I shaved 2 seconds off atom init times and it's boring [MDB IGNORE] (#16176)

* I shaved 2 seconds off atom init times and it's boring (#69742)

* I shaved 2 seconds off init times by moving some sleep tests to only run during unit testing and using ``as anything``

* I shaved 2 seconds off atom init times and it's boring

Co-authored-by: Mothblocks <35135081+Mothblocks@users.noreply.github.com>

code/controllers/subsystem/atoms.dm

@@ -85,12 +85,18 @@ SUBSYSTEM_DEF(atoms)
 	if (atoms_to_return)
 		LAZYINITLIST(created_atoms)
 
+	#ifdef TESTING
 	var/count
+	#endif
+
 	var/list/mapload_arg = list(TRUE)
 
 	if(atoms)
+		#ifdef TESTING
 		count = atoms.len
-		for(var/I in 1 to count)
+		#endif
+
+		for(var/I in 1 to atoms.len)
 			var/atom/A = atoms[I]
 			if(!(A.flags_1 & INITIALIZED_1))
 				CHECK_TICK
@@ -98,17 +104,21 @@ SUBSYSTEM_DEF(atoms)
 				InitAtom(A, TRUE, mapload_arg)
 				PROFILE_INIT_ATOM_END(A)
 	else
+		#ifdef TESTING
 		count = 0
-		for(var/atom/A in world)
+		#endif
+
+		for(var/atom/A as anything in world)
 			if(!(A.flags_1 & INITIALIZED_1))
 				PROFILE_INIT_ATOM_BEGIN()
 				InitAtom(A, FALSE, mapload_arg)
 				PROFILE_INIT_ATOM_END(A)
+				#ifdef TESTING
 				++count
+				#endif
 				CHECK_TICK
 
 	testing("Initialized [count] atoms")
-	pass(count)
 
 /// Init this specific atom
 /datum/controller/subsystem/atoms/proc/InitAtom(atom/A, from_template = FALSE, list/arguments)
@@ -117,27 +127,33 @@ SUBSYSTEM_DEF(atoms)
 		BadInitializeCalls[the_type] |= BAD_INIT_QDEL_BEFORE
 		return TRUE
 
+	// This is handled and battle tested by dreamchecker. Limit to UNIT_TESTS just in case that ever fails.
+	#ifdef UNIT_TESTS
 	var/start_tick = world.time
+	#endif
 
 	var/result = A.Initialize(arglist(arguments))
 
+	#ifdef UNIT_TESTS
 	if(start_tick != world.time)
 		BadInitializeCalls[the_type] |= BAD_INIT_SLEPT
+	#endif
 
 	var/qdeleted = FALSE
 
-	if(result != INITIALIZE_HINT_NORMAL)
-		switch(result)
-			if(INITIALIZE_HINT_LATELOAD)
-				if(arguments[1]) //mapload
-					late_loaders += A
-				else
-					A.LateInitialize()
-			if(INITIALIZE_HINT_QDEL)
-				qdel(A)
-				qdeleted = TRUE
+	switch(result)
+		if (INITIALIZE_HINT_NORMAL)
+			// pass
+		if(INITIALIZE_HINT_LATELOAD)
+			if(arguments[1]) //mapload
+				late_loaders += A
 			else
-				BadInitializeCalls[the_type] |= BAD_INIT_NO_HINT
+				A.LateInitialize()
+		if(INITIALIZE_HINT_QDEL)
+			qdel(A)
+			qdeleted = TRUE
+		else
+			BadInitializeCalls[the_type] |= BAD_INIT_NO_HINT
 
 	if(!A) //possible harddel
 		qdeleted = TRUE