Applied-Energistics-2-tilera-Edition/src/main/java/appeng/util/InventoryAdaptor.java

/*
 * This file is part of Applied Energistics 2.
 * Copyright (c) 2013 - 2015, AlgorithmX2, All rights reserved.
 *
 * Applied Energistics 2 is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Applied Energistics 2 is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Applied Energistics 2.  If not, see <http://www.gnu.org/licenses/lgpl>.
 */

package appeng.util;

import java.util.ArrayList;

import appeng.api.config.FuzzyMode;
import appeng.integration.IntegrationRegistry;
import appeng.integration.IntegrationType;
import appeng.integration.abstraction.IBetterStorage;
import appeng.util.inv.*;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.inventory.IInventory;
import net.minecraft.inventory.ISidedInventory;
import net.minecraft.item.ItemStack;
import net.minecraft.tileentity.TileEntityChest;
import net.minecraftforge.common.util.ForgeDirection;

public abstract class InventoryAdaptor implements Iterable<ItemSlot> {
    // returns an appropriate adaptor, or null
    public static InventoryAdaptor getAdaptor(final Object te, final ForgeDirection d) {
        if (te == null) {
            return null;
        }

        final IBetterStorage bs = (IBetterStorage
        ) (IntegrationRegistry.INSTANCE.isEnabled(IntegrationType.BetterStorage)
               ? IntegrationRegistry.INSTANCE.getInstance(IntegrationType.BetterStorage)
               : null);

        if (te instanceof EntityPlayer) {
            return new AdaptorIInventory(
                new AdaptorPlayerInventory(((EntityPlayer) te).inventory, false)
            );
        } else if (te instanceof ArrayList) {
            @SuppressWarnings("unchecked")
            final ArrayList<ItemStack> list = (ArrayList<ItemStack>) te;

            return new AdaptorList(list);
        } else if (bs != null && bs.isStorageCrate(te)) {
            return bs.getAdaptor(te, d);
        } else if (te instanceof TileEntityChest) {
            return new AdaptorIInventory(Platform.GetChestInv(te));
        } else if (te instanceof ISidedInventory) {
            final ISidedInventory si = (ISidedInventory) te;
            final int[] slots = si.getAccessibleSlotsFromSide(d.ordinal());
            if (si.getSizeInventory() > 0 && slots != null && slots.length > 0) {
                return new AdaptorIInventory(new WrapperMCISidedInventory(si, d));
            }
        } else if (te instanceof IInventory) {
            final IInventory i = (IInventory) te;
            if (i.getSizeInventory() > 0) {
                return new AdaptorIInventory(i);
            }
        }

        return null;
    }

    // return what was extracted.
    public abstract ItemStack
    removeItems(int amount, ItemStack filter, IInventoryDestination destination);

    public abstract ItemStack
    simulateRemove(int amount, ItemStack filter, IInventoryDestination destination);

    // return what was extracted.
    public abstract ItemStack removeSimilarItems(
        int amount,
        ItemStack filter,
        FuzzyMode fuzzyMode,
        IInventoryDestination destination
    );

    public abstract ItemStack simulateSimilarRemove(
        int amount,
        ItemStack filter,
        FuzzyMode fuzzyMode,
        IInventoryDestination destination
    );

    // return what isn't used...
    public abstract ItemStack addItems(ItemStack toBeAdded);

    public abstract ItemStack simulateAdd(ItemStack toBeSimulated);

    public abstract boolean containsItems();
}