vahelce

public static Identifier getTexture(UUID uuid) {
      return shouldUseSlimModel(uuid) ? ALEX_SKIN : STEVE_SKIN;
   }

   public static String getModel(UUID uuid) {
      return shouldUseSlimModel(uuid) ? "slim" : "default";
   }

   private static boolean shouldUseSlimModel(UUID uuid) {
      return (uuid.hashCode() & 1) == 1;
   }