ActuallyAdditions/src/main/java/de/ellpeck/actuallyadditions/mod/inventory/ContainerCrafter.java

/*
 * This file ("ContainerCrafter.java") is part of the Actually Additions mod for Minecraft.
 * It is created and owned by Ellpeck and distributed
 * under the Actually Additions License to be found at
 * http://ellpeck.de/actaddlicense
 * View the source code at https://github.com/Ellpeck/ActuallyAdditions
 *
 * © 2015-2016 Ellpeck
 */

package de.ellpeck.actuallyadditions.mod.inventory;


import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.InventoryPlayer;
import net.minecraft.inventory.*;
import net.minecraft.item.ItemStack;
import net.minecraft.item.crafting.CraftingManager;
import net.minecraft.world.World;


public class ContainerCrafter extends Container{

    public final World world;
    public final InventoryCrafting craftMatrix = new InventoryCrafting(this, 3, 3);
    public final IInventory craftResult = new InventoryCraftResult();

    public ContainerCrafter(EntityPlayer player){
        InventoryPlayer inventory = player.inventory;

        this.world = player.worldObj;

        this.addSlotToContainer(new SlotCrafting(inventory.player, this.craftMatrix, this.craftResult, 0, 124, 35));
        for(int i = 0; i < 3; i++){
            for(int j = 0; j < 3; j++){
                this.addSlotToContainer(new Slot(this.craftMatrix, j+i*3, 30+j*18, 17+i*18));
            }
        }

        for(int i = 0; i < 3; i++){
            for(int j = 0; j < 9; j++){
                this.addSlotToContainer(new Slot(inventory, j+i*9+9, 8+j*18, 84+i*18));
            }
        }
        for(int i = 0; i < 9; i++){
            this.addSlotToContainer(new Slot(inventory, i, 8+i*18, 142));
        }

        this.onCraftMatrixChanged(this.craftMatrix);
    }

    @Override
    public ItemStack transferStackInSlot(EntityPlayer player, int slot){
        ItemStack stack = null;
        Slot theSlot = this.inventorySlots.get(slot);

        if(theSlot != null && theSlot.getHasStack()){
            ItemStack savedStack = theSlot.getStack();
            stack = savedStack.copy();

            if(slot == 0){
                if(!this.mergeItemStack(savedStack, 10, 46, true)){
                    return null;
                }
                theSlot.onSlotChange(savedStack, stack);
            }
            else if(slot >= 10 && slot < 37 && !this.mergeItemStack(savedStack, 37, 46, false)){
                return null;
            }
            else if(slot >= 37 && slot < 46 && !this.mergeItemStack(savedStack, 10, 37, false)){
                return null;
            }
            else if(!this.mergeItemStack(savedStack, 10, 46, false)){
                return null;
            }

            if(savedStack.stackSize <= 0){
                theSlot.putStack(null);
            }
            else{
                theSlot.onSlotChanged();
            }

            if(savedStack.stackSize == stack.stackSize){
                return null;
            }

            theSlot.onPickupFromSlot(player, savedStack);
        }
        return stack;
    }

    @Override
    public void onContainerClosed(EntityPlayer player){
        super.onContainerClosed(player);

        if(!this.world.isRemote){
            for(int i = 0; i < 9; ++i){
                ItemStack stack = this.craftMatrix.removeStackFromSlot(i);
                if(stack != null){
                    player.dropItem(stack, false);
                }
            }
        }
    }

    @Override
    public void onCraftMatrixChanged(IInventory inv){
        this.craftResult.setInventorySlotContents(0, CraftingManager.getInstance().findMatchingRecipe(this.craftMatrix, this.world));
    }

    @Override
    public boolean canInteractWith(EntityPlayer player){
        return true;
    }
}