Merge pull request #9321 from FreeStylaLT/girders_are_flammable

Makes girders melt

code/__DEFINES/misc.dm

@@ -370,4 +370,7 @@
 // used for alternate_option
 #define GET_RANDOM_JOB 0
 #define BE_ASSISTANT 1
-#define RETURN_TO_LOBBY 2
+#define RETURN_TO_LOBBY 2
+
+//Melting Temperatures for various specific objects
+#define GIRDER_MELTING_TEMP 5000

code/game/objects/structures/girders.dm

@@ -47,6 +47,11 @@
 		new /obj/item/stack/sheet/metal(get_turf(src))
 		qdel(src)
 
+/obj/structure/girder/temperature_expose(datum/gas_mixture/air, exposed_temperature)
+	var/temp_check = exposed_temperature
+	if(temp_check >= GIRDER_MELTING_TEMP)
+		take_damage(10)
+
 /obj/structure/girder/attackby(obj/item/W, mob/user, params)
 	add_fingerprint(user)
 	if(isscrewdriver(W))