public void registerModels() {
		if (ContentBlocks.redstone_crystal != null)
			registerBlockModelAsItem(ContentBlocks.redstone_crystal, "redstone_crystal");
	}

	public void registerBlockModelAsItem(final Block block, final String blockName) {
		registerBlockModelAsItem(block, 0, blockName);
	}

	public void registerBlockModelAsItem(final Block block, int meta, final String blockName) {
		registerBlockModelAsItem(block, meta, blockName, "inventory");
	}

	public void registerBlockModelAsItem(final Block block, int meta, final String blockName,
			final String variantName) {
		registerItemModel(Item.getItemFromBlock(block), meta, blockName, variantName);
	}

	public void registerItemModel(final Item item, int meta, final String itemName, final String variantName) {
		ModelLoader.setCustomModelResourceLocation(item, meta,
				new ModelResourceLocation(Ref.MOD_ID + ":" + itemName, variantName));
	}