TechReborn/src/main/java/techreborn/tiles/TileDigitalChest.java

package techreborn.tiles;

import ic2.api.tile.IWrenchable;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.inventory.IInventory;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.network.NetworkManager;
import net.minecraft.network.Packet;
import net.minecraft.network.play.server.S35PacketUpdateTileEntity;
import techreborn.init.ModBlocks;
import techreborn.util.Inventory;
import techreborn.util.ItemUtils;

import java.util.List;

public class TileDigitalChest extends TileMachineBase implements IInventory,
		IWrenchable {

	// Slot 0 = Input
	// Slot 1 = Output
	// Slot 2 = Fake Item

	//TODO use long so we can have 9,223,372,036,854,775,807 items instead of 2,147,483,647
	int storage = 32767;

	public Inventory inventory = new Inventory(3, "TileDigitalChest",
			storage);

	public ItemStack storedItem;

	@Override
	public void updateEntity()
	{
		if(!worldObj.isRemote){
			if (storedItem != null)
			{
				ItemStack fakeStack = storedItem.copy();
				fakeStack.stackSize = 1;
				setInventorySlotContents(2, fakeStack);
			} else
			{
				setInventorySlotContents(2, null);
			}

			if (getStackInSlot(0) != null)
			{
				if (storedItem == null)
				{
					storedItem = getStackInSlot(0);
					setInventorySlotContents(0, null);
				} else if (ItemUtils.isItemEqual(storedItem, getStackInSlot(0),
						true, true))
				{
					if (storedItem.stackSize <= Integer.MAX_VALUE
							- getStackInSlot(0).stackSize)
					{
						storedItem.stackSize += getStackInSlot(0).stackSize;
						decrStackSize(0, getStackInSlot(0).stackSize);
					}
				}
			}

			if (storedItem != null && getStackInSlot(1) == null)
			{
				ItemStack itemStack = storedItem.copy();
				itemStack.stackSize = itemStack.getMaxStackSize();
				setInventorySlotContents(1, itemStack);
				storedItem.stackSize -= itemStack.getMaxStackSize();
			} else if (ItemUtils.isItemEqual(getStackInSlot(1), storedItem, true,
					true))
			{
				int wanted = getStackInSlot(1).getMaxStackSize()
						- getStackInSlot(1).stackSize;
				if (storedItem.stackSize >= wanted)
				{
					decrStackSize(1, -wanted);
					storedItem.stackSize -= wanted;
				} else
				{
					decrStackSize(1, -storedItem.stackSize);
					storedItem = null;
				}
			}
		}
		syncWithAll();
	}

	public Packet getDescriptionPacket()
	{
		NBTTagCompound nbtTag = new NBTTagCompound();
		writeToNBT(nbtTag);
		return new S35PacketUpdateTileEntity(this.xCoord, this.yCoord,
				this.zCoord, 1, nbtTag);
	}

	@Override
	public void onDataPacket(NetworkManager net,
			S35PacketUpdateTileEntity packet)
	{
		worldObj.markBlockRangeForRenderUpdate(xCoord, yCoord, zCoord, xCoord,
				yCoord, zCoord);
		readFromNBT(packet.func_148857_g());
	}

	@Override
	public void readFromNBT(NBTTagCompound tagCompound)
	{
		super.readFromNBT(tagCompound);
		readFromNBTWithoutCoords(tagCompound);
	}

	public void readFromNBTWithoutCoords(NBTTagCompound tagCompound)
	{
		inventory.readFromNBT(tagCompound);

		storedItem = null;

		if (tagCompound.hasKey("storedStack"))
		{
			storedItem = ItemStack
					.loadItemStackFromNBT((NBTTagCompound) tagCompound
							.getTag("storedStack"));
		}

		if (storedItem != null)
		{
			storedItem.stackSize = tagCompound.getInteger("storedQuantity");
		}
	}

	@Override
	public void writeToNBT(NBTTagCompound tagCompound)
	{
		super.writeToNBT(tagCompound);
		writeToNBTWithoutCoords(tagCompound);
	}

	public void writeToNBTWithoutCoords(NBTTagCompound tagCompound)
	{
		inventory.writeToNBT(tagCompound);
		if (storedItem != null)
		{
			tagCompound.setTag("storedStack",
					storedItem.writeToNBT(new NBTTagCompound()));
			tagCompound.setInteger("storedQuantity", storedItem.stackSize);
		} else
			tagCompound.setInteger("storedQuantity", 0);
	}

	@Override
	public int getSizeInventory()
	{
		return inventory.getSizeInventory();
	}

	@Override
	public ItemStack getStackInSlot(int slot)
	{
		return inventory.getStackInSlot(slot);
	}

	@Override
	public ItemStack decrStackSize(int slotId, int count)
	{
		return inventory.decrStackSize(slotId, count);
	}

	@Override
	public ItemStack getStackInSlotOnClosing(int slot)
	{
		return inventory.getStackInSlotOnClosing(slot);
	}

	@Override
	public void setInventorySlotContents(int slot, ItemStack stack)
	{
		inventory.setInventorySlotContents(slot, stack);
	}

	@Override
	public String getInventoryName()
	{
		return inventory.getInventoryName();
	}

	@Override
	public boolean hasCustomInventoryName()
	{
		return inventory.hasCustomInventoryName();
	}

	@Override
	public int getInventoryStackLimit()
	{
		return inventory.getInventoryStackLimit();
	}

	@Override
	public boolean isUseableByPlayer(EntityPlayer player)
	{
		return inventory.isUseableByPlayer(player);
	}

	@Override
	public void openInventory()
	{
		inventory.openInventory();
	}

	@Override
	public void closeInventory()
	{
		inventory.closeInventory();
	}

	@Override
	public boolean isItemValidForSlot(int slot, ItemStack stack)
	{
		return inventory.isItemValidForSlot(slot, stack);
	}

	@Override
	public boolean wrenchCanSetFacing(EntityPlayer entityPlayer, int side)
	{
		return false;
	}

	@Override
	public short getFacing()
	{
		return 0;
	}

	@Override
	public void setFacing(short facing)
	{
	}

	@Override
	public boolean wrenchCanRemove(EntityPlayer entityPlayer)
	{
		if (entityPlayer.isSneaking())
		{
			return true;
		}
		return false;
	}

	@Override
	public float getWrenchDropRate()
	{
		return 1F;
	}

	@Override
	public ItemStack getWrenchDrop(EntityPlayer entityPlayer)
	{
		return getDropWithNBT();
	}

	public ItemStack getDropWithNBT()
	{
		NBTTagCompound tileEntity = new NBTTagCompound();
		ItemStack dropStack = new ItemStack(ModBlocks.digitalChest, 1);
		writeToNBTWithoutCoords(tileEntity);
		dropStack.setTagCompound(new NBTTagCompound());
		dropStack.stackTagCompound.setTag("tileEntity", tileEntity);
		return dropStack;
	}

	@Override
	public void addWailaInfo(List<String> info)
	{
		super.addWailaInfo(info);
		int size = 0;
		String name = "of nothing";
		if (storedItem != null)
		{
			name = storedItem.getDisplayName();
			size += storedItem.stackSize;
		}
		if (getStackInSlot(1) != null)
		{
			name = getStackInSlot(1).getDisplayName();
			size += getStackInSlot(1).stackSize;
		}
		info.add(size + " " + name);

	}
}