rendering update (#3695)

* rnedering update

* fixes

* wack

* wack

* placeholder

* sigh

* sigh

Co-authored-by: fake_vm_user <fake_vm_user>

code/controllers/subsystem/processing/projectiles.dm

@@ -0,0 +1,16 @@
+PROCESSING_SUBSYSTEM_DEF(projectiles)
+	name = "Projectiles"
+	wait = 1
+	stat_tag = "PP"
+	priority = FIRE_PRIORITY_PROJECTILES
+	flags = SS_NO_INIT|SS_TICKER
+	var/global_max_tick_moves = 10
+	var/global_pixel_speed = 2
+	var/global_iterations_per_move = 16
+
+/datum/controller/subsystem/processing/projectiles/proc/set_pixel_speed(new_speed)
+	global_pixel_speed = new_speed
+	for(var/i in processing)
+		var/obj/item/projectile/P = i
+		if(istype(P))			//there's non projectiles on this too.
+			P.set_pixel_speed(new_speed)