Makes burn_state use defines

code/game/objects/structures/artstuff.dm

@@ -9,7 +9,7 @@
 	icon = 'icons/obj/artstuff.dmi'
 	icon_state = "easel"
 	density = 1
-	burn_state = 0 //Burnable
+	burn_state = FLAMMABLE
 	burntime = 15
 	var/obj/item/weapon/canvas/painting = null
 
@@ -52,7 +52,7 @@ var/global/list/globalBlankCanvases[AMT_OF_CANVASES]
 	desc = "draw out your soul on this canvas!"
 	icon = 'icons/obj/artstuff.dmi'
 	icon_state = "11x11"
-	burn_state = 0 //Burnable
+	burn_state = FLAMMABLE
 	var/whichGlobalBackup = 1 //List index
 
 /obj/item/weapon/canvas/nineteenXnineteen

code/game/objects/structures/beds_chairs/bed.dm

@@ -15,7 +15,7 @@
 	anchored = 1
 	can_buckle = 1
 	buckle_lying = 1
-	burn_state = 0 //Burnable
+	burn_state = FLAMMABLE
 	burntime = 30
 	var/buildstacktype = /obj/item/stack/sheet/metal
 	var/buildstackamount = 2
@@ -86,7 +86,7 @@
 	icon = 'icons/obj/rollerbed.dmi'
 	icon_state = "down"
 	anchored = 0
-	burn_state = -1 //Not Burnable
+	burn_state = FIRE_PROOF
 	foldabletype = /obj/item/roller
 
 /obj/structure/bed/roller/post_buckle_mob(mob/living/M)

code/game/objects/structures/beds_chairs/chair.dm

@@ -3,7 +3,7 @@
 	desc = "You sit in this. Either by will or force.\n<span class='notice'>Alt-click to rotate it clockwise.</span>"
 	icon_state = "chair"
 	buckle_lying = 0 //you sit in a chair, not lay
-	burn_state = -1 //Not Burnable
+	burn_state = FIRE_PROOF
 	buildstackamount = 1
 
 /obj/structure/bed/chair/New()
@@ -85,7 +85,7 @@
 
 // Chair types
 /obj/structure/bed/chair/wood
-	burn_state = 0 //Burnable
+	burn_state = FLAMMABLE
 	burntime = 20
 	buildstacktype = /obj/item/stack/sheet/mineral/wood
 	buildstackamount = 3
@@ -105,7 +105,7 @@
 	desc = "It looks comfy.\n<span class='notice'>Alt-click to rotate it clockwise.</span>"
 	icon_state = "comfychair"
 	color = rgb(255,255,255)
-	burn_state = 0 //Burnable
+	burn_state = FLAMMABLE
 	burntime = 30
 	buildstackamount = 2
 	var/image/armrest = null

code/game/objects/structures/bedsheet_bin.dm

@@ -17,7 +17,7 @@ LINEN BINS
 	throw_range = 2
 	w_class = 1
 	item_color = "white"
-	burn_state = 0 //Burnable
+	burn_state = FLAMMABLE
 
 
 /obj/item/weapon/bedsheet/attack(mob/living/M, mob/user)
@@ -175,7 +175,7 @@ LINEN BINS
 	icon = 'icons/obj/structures.dmi'
 	icon_state = "linenbin-full"
 	anchored = 1
-	burn_state = 0 //Burnable
+	burn_state = FLAMMABLE
 	burntime = 20
 	var/amount = 10
 	var/list/sheets = list()

code/game/objects/structures/crates_lockers/closets/cardboardbox.dm

@@ -4,7 +4,7 @@
 	icon_state = "cardboard"
 	health = 10
 	mob_storage_capacity = 1
-	burn_state = 0 //Burnable
+	burn_state = FLAMMABLE
 	burntime = 20
 	can_weld_shut = 0
 	cutting_tool = /obj/item/weapon/wirecutters

code/game/objects/structures/crates_lockers/closets/gimmick.dm

@@ -2,7 +2,7 @@
 	name = "cabinet"
 	desc = "Old will forever be in fashion."
 	icon_state = "cabinet"
-	burn_state = 0 //Burnable
+	burn_state = FLAMMABLE
 	burntime = 20
 
 /obj/structure/closet/acloset

code/game/objects/structures/crates_lockers/closets/job_closets.dm

@@ -117,7 +117,7 @@
 	name = "coffin"
 	desc = "It's a burial receptacle for the dearly departed."
 	icon_state = "coffin"
-	burn_state = 0 //Burnable
+	burn_state = FLAMMABLE
 	burntime = 20
 
 /obj/structure/closet/wardrobe/red

code/game/objects/structures/crates_lockers/closets/secure/bar.dm

@@ -2,7 +2,7 @@
 	name = "booze storage"
 	req_access = list(access_bar)
 	icon_state = "cabinet"
-	burn_state = 0 //Burnable
+	burn_state = FLAMMABLE
 	burntime = 20
 
 /obj/structure/closet/secure_closet/bar/New()

code/game/objects/structures/crates_lockers/closets/secure/personal.dm

@@ -25,7 +25,7 @@
 
 /obj/structure/closet/secure_closet/personal/cabinet
 	icon_state = "cabinet"
-	burn_state = 0 //Burnable
+	burn_state = FLAMMABLE
 	burntime = 20
 
 /obj/structure/closet/secure_closet/personal/cabinet/New()

code/game/objects/structures/crates_lockers/closets/secure/security.dm

@@ -155,7 +155,7 @@
 	name = "\proper detective's cabinet"
 	req_access = list(access_forensics_lockers)
 	icon_state = "cabinet"
-	burn_state = 0 //Burnable
+	burn_state = FLAMMABLE
 	burntime = 20
 
 /obj/structure/closet/secure_closet/detective/New()

code/game/objects/structures/flora.dm

@@ -1,5 +1,5 @@
 /obj/structure/flora
-	burn_state = 0 //Burnable
+	burn_state = FLAMMABLE
 	burntime = 30
 
 //trees
@@ -221,7 +221,7 @@
 	icon_state = "rock1"
 	icon = 'icons/obj/flora/rocks.dmi'
 	anchored = 1
-	burn_state = -1 //Not Burnable
+	burn_state = FIRE_PROOF
 
 /obj/structure/flora/rock/New()
 	..()

code/game/objects/structures/mineral_doors.dm

@@ -242,7 +242,7 @@
 	hardness = 1
 	openSound = 'sound/effects/doorcreaky.ogg'
 	closeSound = 'sound/effects/doorcreaky.ogg'
-	burn_state = 0 //Burnable
+	burn_state = FLAMMABLE
 	burntime = 30
 
 /obj/structure/mineral_door/wood/Dismantle(devastated = 0)

code/game/objects/structures/signs.dm

@@ -73,7 +73,7 @@
 	icon = 'icons/obj/decals.dmi'
 	icon_state = "backing"
 	w_class = 3
-	burn_state = 0 //Burnable, made of wood
+	burn_state = FLAMMABLE
 
 /obj/item/sign_backing/afterattack(atom/target, mob/user, proximity)
 	if(!isturf(target))

code/game/objects/structures/table_frames.dm

@@ -86,7 +86,7 @@
 	icon_state = "wood_frame"
 	framestack = /obj/item/stack/sheet/mineral/wood
 	framestackamount = 2
-	burn_state = 0 //Burnable
+	burn_state = FLAMMABLE
 
 /obj/structure/table_frame/wood/attackby(obj/item/I, mob/user, params)
 	if(istype(I, /obj/item/weapon/wrench))

code/game/objects/structures/tables_racks.dm

@@ -309,7 +309,7 @@
 	frame = /obj/structure/table_frame/wood
 	framestack = /obj/item/stack/sheet/mineral/wood
 	buildstack = /obj/item/stack/sheet/mineral/wood
-	burn_state = 0 //Burnable
+	burn_state = FLAMMABLE
 	burntime = 20
 	canSmoothWith = list(/obj/structure/table/wood, /obj/structure/table/wood/poker)