package net.minecraft.server;

import java.util.Random;

public class InventoryUtils {

    private static final Random a = new Random();

    public static void dropInventory(World world, BlockPosition blockposition, IInventory iinventory) {
        dropInventory(world, (double) blockposition.getX(), (double) blockposition.getY(), (double) blockposition.getZ(), iinventory);
    }

    public static void dropEntity(World world, Entity entity, IInventory iinventory) {
        dropInventory(world, entity.locX, entity.locY, entity.locZ, iinventory);
    }

    private static void dropInventory(World world, double d0, double d1, double d2, IInventory iinventory) {
        for (int i = 0; i < iinventory.getSize(); ++i) {
            ItemStack itemstack = iinventory.getItem(i);

            if (itemstack != null) {
                dropItem(world, d0, d1, d2, itemstack);
            }
        }

    }

    private static void dropItem(World world, double d0, double d1, double d2, ItemStack itemstack) {
        float f = InventoryUtils.a.nextFloat() * 0.8F + 0.1F;
        float f1 = InventoryUtils.a.nextFloat() * 0.8F + 0.1F;
        float f2 = InventoryUtils.a.nextFloat() * 0.8F + 0.1F;

        while (itemstack.count > 0) {
            int i = InventoryUtils.a.nextInt(21) + 10;

            if (i > itemstack.count) {
                i = itemstack.count;
            }

            itemstack.count -= i;
            EntityItem entityitem = new EntityItem(world, d0 + (double) f, d1 + (double) f1, d2 + (double) f2, new ItemStack(itemstack.getItem(), i, itemstack.getData()));

            if (itemstack.hasTag()) {
                entityitem.getItemStack().setTag((NBTTagCompound) itemstack.getTag().clone());
            }

            float f3 = 0.05F;

            entityitem.motX = InventoryUtils.a.nextGaussian() * (double) f3;
            entityitem.motY = InventoryUtils.a.nextGaussian() * (double) f3 + 0.20000000298023224D;
            entityitem.motZ = InventoryUtils.a.nextGaussian() * (double) f3;
            world.addEntity(entityitem);
        }

    }
}