ItemPaintCan.java

package openblocks.common.item;

import java.util.List;
import net.minecraft.block.Block;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import openblocks.OpenBlocks;
import openmods.item.ItemOpenBlock;
import openmods.utils.ColorUtils;
import openmods.utils.ColorUtils.ColorMeta;
import openmods.utils.ItemUtils;

public class ItemPaintCan extends ItemOpenBlock {

	public static final String TAG_AMOUNT = "amount";
	public static final String TAG_COLOR = "color";
	public static final int FULL_CAN_SIZE = 30;

	public ItemPaintCan(Block block) {
		super(block);
		setMaxDamage(FULL_CAN_SIZE);
		setMaxStackSize(1);
	}

	public static int getColorFromStack(ItemStack stack) {
		NBTTagCompound tag = stack.getTagCompound();
		return tag != null? tag.getInteger(TAG_COLOR) : 0;
	}

	public static int getAmountFromStack(ItemStack stack) {
		NBTTagCompound tag = stack.getTagCompound();
		return tag != null? tag.getInteger(TAG_AMOUNT) : 0;
	}

	@Override
	@SuppressWarnings({ "rawtypes", "unchecked" })
	public void getSubItems(Item item, CreativeTabs tab, List result) {
		for (ColorMeta meta : ColorUtils.getAllColors()) {
			result.add(createStack(meta.rgb, FULL_CAN_SIZE));
		}
	}

	public static ItemStack createStack(int color, int amount) {
		ItemStack stack = new ItemStack(OpenBlocks.Blocks.paintCan);
		setColorAndAmount(stack, color, amount);
		return stack;
	}

	public static void setColorAndAmount(ItemStack stack, final int color, final int amount) {
		NBTTagCompound tag = ItemUtils.getItemTag(stack);
		tag.setInteger(TAG_COLOR, color);
		tag.setInteger(TAG_AMOUNT, amount);
	}

	@Override
	@SuppressWarnings({ "rawtypes", "unchecked" })
	public void addInformation(ItemStack stack, EntityPlayer player, List list, boolean extended) {
		list.add(String.format("#%06X", getColorFromStack(stack)));
	}

	@Override
	public int getDamage(ItemStack stack) {
		return FULL_CAN_SIZE - getAmountFromStack(stack);
	}

	@Override
	public double getDurabilityForDisplay(ItemStack stack) {
		return 1 - (double)getAmountFromStack(stack) / FULL_CAN_SIZE;
	}

	@Override
	public boolean isDamaged(ItemStack stack) {
		return stack.hasTagCompound() && getAmountFromStack(stack) < FULL_CAN_SIZE;
	}
}