#loader contenttweaker

import mods.contenttweaker.VanillaFactory;
import mods.contenttweaker.Block;
import mods.contenttweaker.CreativeTab;


var customTab = VanillaFactory.createCreativeTab("customitems", <item:minecraft:stone>);
customTab.register();

var hardstone = VanillaFactory.createBlock("hardstone", <blockmaterial:rock>);
hardstone.setBlockSoundType(<soundtype:stone>);
hardstone.setCreativeTab(customTab);
hardstone.setWitherProof(true);
hardstone.register();