ItemElectric.java 文件源码

/** Gets the energy stored in the item. Energy is stored using item NBT */
@Override
public float getElectricityStored(ItemStack itemStack)
{
    if (itemStack.getTagCompound() == null)
    {
        itemStack.setTagCompound(new NBTTagCompound());
    }
    float energyStored = 0f;
    if (itemStack.getTagCompound().hasKey("electricity"))
    {
        NBTBase obj = itemStack.getTagCompound().getTag("electricity");
        if (obj instanceof NBTTagDouble)
        {
            energyStored = (float) ((NBTTagDouble) obj).data;
        }
        else if (obj instanceof NBTTagFloat)
        {
            energyStored = ((NBTTagFloat) obj).data;
        }
    }

    /** Sets the damage as a percentage to render the bar properly. */
    itemStack.setItemDamage((int) (100 - (energyStored / this.getMaxElectricityStored(itemStack)) * 100));
    return energyStored;
}