ItemManaRing.java

/**
 * This class was created by <Vazkii>. It's distributed as
 * part of the Botania Mod. Get the Source Code in github:
 * https://github.com/Vazkii/Botania
 *
 * Botania is Open Source and distributed under the
 * Botania License: http://botaniamod.net/license.php
 *
 * File Created @ [Apr 24, 2014, 2:55:28 PM (GMT)]
 */
package vazkii.botania.common.item.equipment.bauble;

import java.util.List;

import javax.annotation.Nonnull;

import baubles.api.BaubleType;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.NonNullList;
import net.minecraft.util.math.MathHelper;
import net.minecraft.world.World;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;
import vazkii.botania.api.mana.IManaItem;
import vazkii.botania.api.mana.IManaTooltipDisplay;
import vazkii.botania.common.core.helper.ItemNBTHelper;
import vazkii.botania.common.lib.LibItemNames;

public class ItemManaRing extends ItemBauble implements IManaItem, IManaTooltipDisplay {

	protected static final int MAX_MANA = 500000;

	private static final String TAG_MANA = "mana";

	public ItemManaRing() {
		this(LibItemNames.MANA_RING);
	}

	public ItemManaRing(String name) {
		super(name);
	}

	@Override
	public BaubleType getBaubleType(ItemStack itemstack) {
		return BaubleType.RING;
	}

	@Override
	@SideOnly(Side.CLIENT)
	public void getSubItems(@Nonnull Item item, CreativeTabs tab, NonNullList<ItemStack> stacks) {
		stacks.add(new ItemStack(item));

		ItemStack full = new ItemStack(item);
		setMana(full, getMaxMana(full));
		stacks.add(full);
	}

	@Override
	public int getEntityLifespan(ItemStack itemStack, World world) {
		return Integer.MAX_VALUE;
	}

	public static void setMana(ItemStack stack, int mana) {
		ItemNBTHelper.setInt(stack, TAG_MANA, mana);
	}

	@Override
	public int getMana(ItemStack stack) {
		return ItemNBTHelper.getInt(stack, TAG_MANA, 0);
	}

	@Override
	public int getMaxMana(ItemStack stack) {
		return MAX_MANA;
	}

	@Override
	public void addMana(ItemStack stack, int mana) {
		setMana(stack, Math.min(getMana(stack) + mana, getMaxMana(stack)));
	}

	@Override
	public boolean canReceiveManaFromPool(ItemStack stack, TileEntity pool) {
		return true;
	}

	@Override
	public boolean canReceiveManaFromItem(ItemStack stack, ItemStack otherStack) {
		return true;
	}

	@Override
	public boolean canExportManaToPool(ItemStack stack, TileEntity pool) {
		return true;
	}

	@Override
	public boolean canExportManaToItem(ItemStack stack, ItemStack otherStack) {
		return true;
	}

	@Override
	public boolean isNoExport(ItemStack stack) {
		return false;
	}

	@Override
	public float getManaFractionForDisplay(ItemStack stack) {
		return (float) getMana(stack) / (float) getMaxMana(stack);
	}

	@Override
	public boolean showDurabilityBar(ItemStack stack) {
		return true;
	}

	@Override
	public double getDurabilityForDisplay(ItemStack stack) {
		return 1.0 - getManaFractionForDisplay(stack);
	}

	@Override
	public int getRGBDurabilityForDisplay(ItemStack stack) {
		return MathHelper.hsvToRGB(getManaFractionForDisplay(stack) / 3.0F, 1.0F, 1.0F);
	}

}