Fixes blobs and other stuff (#1513)

Was supposed to contain a fix for Vaurca surgery, but I decided to greenlight this ASAP once I detected a critical bug with how blobs worked.
Fixes #1509
Fixes #1470
Fixes #1506
Fixes #1501
Fixes #1484
Fixes #1466

Also replaces a lot of Vaurca checks with isvaurca() so that Shells don't start doing weird shit.

code/modules/mining/mine_turfs.dm

@@ -433,6 +433,32 @@
 	if(!W || !user)
 		return 0
 
+	if (istype(W, /obj/item/stack/rods))
+		var/obj/structure/lattice/L = locate(/obj/structure/lattice, src)
+		if(L)
+			return
+		var/obj/item/stack/rods/R = W
+		if (R.use(1))
+			user << "<span class='notice'>Constructing support lattice ...</span>"
+			playsound(src, 'sound/weapons/Genhit.ogg', 50, 1)
+			ReplaceWithLattice()
+		return
+
+	if (istype(W, /obj/item/stack/tile/floor))
+		var/obj/structure/lattice/L = locate(/obj/structure/lattice, src)
+		if(L)
+			var/obj/item/stack/tile/floor/S = W
+			if (S.get_amount() < 1)
+				return
+			qdel(L)
+			playsound(src, 'sound/weapons/Genhit.ogg', 50, 1)
+			S.use(1)
+			ChangeTurf(/turf/simulated/floor/airless)
+			return
+		else
+			user << "<span class='warning'>The plating is going to need some support.</span>"
+			return
+
 	var/list/usable_tools = list(
 		/obj/item/weapon/shovel,
 		/obj/item/weapon/pickaxe/diamonddrill,