Burning objects are processed every tick now instead of using a spawn() check

code/controllers/subsystem/objects.dm

@@ -9,6 +9,7 @@ var/datum/subsystem/objects/SSobj
 	priority = 12
 
 	var/list/processing = list()
+	var/list/burning = list()
 
 /datum/subsystem/objects/New()
 	NEW_SS_GLOBAL(SSobj)
@@ -37,5 +38,9 @@ var/datum/subsystem/objects/SSobj
 			++i
 			continue
 		SSobj.processing.Cut(i, i+1)
-
-
+	for(var/obj/burningobj in SSobj.burning)
+		if(burningobj && (burningobj.burn_state == 1))
+			if(burningobj.burn_world_time < world.time)
+				burningobj.burn()
+		else
+			SSobj.burning -= burningobj

code/game/objects/objs.dm

@@ -11,6 +11,7 @@
 
 	var/burn_state = -1 // -1=fireproof | 0=will burn in fires | 1=currently on fire
 	var/burntime = 10 //How long it takes to burn to ashes, in seconds
+	var/burn_world_time //What world time the object will burn up completely
 
 /obj/Destroy()
 	if(!istype(src, /obj/machinery))
@@ -163,23 +164,21 @@
 /obj/fire_act(var/global_overlay=1)
 	if(!burn_state)
 		burn_state = 1
+		SSobj.burning += src
+		burn_world_time = world.time + burntime*10
 		if(global_overlay)
 			overlays += fire_overlay
-		spawn(burntime*10)
-			if(burn_state == 1)
-				burn()
+		return 1
 
-/obj/proc/burn(var/visible=1)
+/obj/proc/burn()
 	for(var/obj/item/Item in contents) //Empty out the contents
 		Item.loc = src.loc
 		Item.fire_act() //Set them on fire, too
-
-	if(visible)
-		src.visible_message("<span class='warning'>[src] burns away, leaving behind a pile of ashes.</span>")
 	new /obj/effect/decal/cleanable/ash(src.loc)
 	qdel(src)
 
 /obj/proc/extinguish()
 	if(burn_state == 1)
 		burn_state = 0
-		overlays -= fire_overlay
+		overlays -= fire_overlay
+		SSobj.burning -= src

code/modules/clothing/clothing.dm

@@ -1,5 +1,6 @@
 /obj/item/clothing
 	name = "clothing"
+	burn_state = 0 //Burnable
 	var/flash_protect = 0		//Malk: What level of bright light protection item has. 1 = Flashers, Flashes, & Flashbangs | 2 = Welding | -1 = OH GOD WELDING BURNT OUT MY RETINAS
 	var/tint = 0				//Malk: Sets the item's level of visual impairment tint, normally set to the same as flash_protect
 	var/up = 0					//	   but seperated to allow items to protect but not impair vision, like space helmets
@@ -23,6 +24,7 @@
 	w_class = 1.0
 	throwforce = 0
 	slot_flags = SLOT_EARS
+	burn_state = -1 //Not Burnable
 
 /obj/item/clothing/ears/earmuffs
 	name = "earmuffs"
@@ -32,7 +34,7 @@
 	flags = EARBANGPROTECT
 	strip_delay = 15
 	put_on_delay = 25
-
+	burn_state = 0 //Burnable
 
 //Glasses
 /obj/item/clothing/glasses
@@ -48,7 +50,7 @@
 	var/list/icon/current = list() //the current hud icons
 	strip_delay = 20
 	put_on_delay = 25
-
+	burn_state = -1 //Not Burnable
 /*
 SEE_SELF  // can see self, no matter what
 SEE_MOBS  // can see all mobs, no matter what
@@ -180,6 +182,7 @@ BLIND     // can't see anything
 	strip_delay = 50
 	put_on_delay = 50
 	flags_cover = HEADCOVERSEYES | HEADCOVERSMOUTH
+	burn_state = -1 //Not Burnable
 
 /obj/item/clothing/suit/space
 	name = "space suit"
@@ -201,6 +204,7 @@ BLIND     // can't see anything
 	max_heat_protection_temperature = SPACE_SUIT_MAX_TEMP_PROTECT
 	strip_delay = 80
 	put_on_delay = 80
+	burn_state = -1 //Not Burnable
 
 //Under clothing
 /obj/item/clothing/under

code/modules/mob/living/carbon/human/inventory.dm

@@ -467,6 +467,6 @@
 				Shreds.desc = "The sad remains of what used to be a glorious [src.name]."
 				qdel(src)
 		else
-			burn(0)
+			burn()
 
 	return shredded