Added some new resources

core/src/io/anuke/mindustry/resource/Item.java

@@ -13,7 +13,10 @@ public class Item{
 		steel = new Item("steel"),
 		titanium = new Item("titanium"),
 		dirium = new Item("dirium"),
-		uranium = new Item("uranium");
+		uranium = new Item("uranium"),
+		sand = new Item("sand"),
+		glass = new Item("glass"),
+		silicon = new Item("silicon");
 
 	public final int id;
 	public final String name;

core/src/io/anuke/mindustry/resource/Liquid.java

@@ -12,7 +12,8 @@ public class Liquid {
 		water = new Liquid("water", Color.ROYAL),
 		plasma = new Liquid("plasma", Color.CORAL),
 		lava = new Liquid("lava", Color.valueOf("ed5334")),
-		oil = new Liquid("oil", Color.valueOf("292929"));
+		oil = new Liquid("oil", Color.valueOf("292929")),
+		cryofluid = new Liquid("cryofluid", Color.SKY);
 	
 	public final Color color;
 	public final String name;