ContainerReload.java

package minefantasy.mf2.container;

import minefantasy.mf2.api.archery.AmmoMechanicsMF;
import minefantasy.mf2.api.archery.IAmmo;
import minefantasy.mf2.api.archery.IFirearm;
import minefantasy.mf2.util.MFLogUtil;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.InventoryPlayer;
import net.minecraft.inventory.Container;
import net.minecraft.inventory.ICrafting;
import net.minecraft.inventory.InventoryBasic;
import net.minecraft.inventory.Slot;
import net.minecraft.item.ItemStack;

public class ContainerReload extends Container
{
    private InventoryBasic weaponInv;
    private ItemStack weapon;
    public ContainerReload(InventoryPlayer user, ItemStack weapon)
    {
        this.weapon = weapon;
        weaponInv = new InventoryBasic("reload", false, 1);
        weaponInv.setInventorySlotContents(0, AmmoMechanicsMF.getAmmo(weapon));
		this.addSlotToContainer(new SlotReload(this, weaponInv, 0, 79, 11));
		
        int i;

        for (i = 0; i < 3; ++i)
        {
            for (int j = 0; j < 9; ++j)
            {
                this.addSlotToContainer(new Slot(user, j + i * 9 + 9, 8 + j * 18, 66 + i * 18));
            }
        }

        for (i = 0; i < 9; ++i)
        {
        	if(i != user.currentItem)
        	{
        		this.addSlotToContainer(new Slot(user, i, 8 + i * 18, 124));
        	}
        }
    }

    @Override
    public ItemStack slotClick(int p_75144_1_, int p_75144_2_, int p_75144_3_, EntityPlayer p_75144_4_)
    {
    	ItemStack result = super.slotClick(p_75144_1_, p_75144_2_, p_75144_3_, p_75144_4_);
    	
    	 ItemStack ammo = weaponInv.getStackInSlot(0);
         AmmoMechanicsMF.setAmmo(weapon, ammo);
         
    	return result;
    }
    @Override
    public void detectAndSendChanges()
    {
        for (int i = 0; i < this.inventorySlots.size(); ++i)
        {
            ItemStack itemstack = ((Slot)this.inventorySlots.get(i)).getStack();
            ItemStack itemstack1 = (ItemStack)this.inventoryItemStacks.get(i);

            if (!ItemStack.areItemStacksEqual(itemstack1, itemstack))
            {
                itemstack1 = itemstack == null ? null : itemstack.copy();
                this.inventoryItemStacks.set(i, itemstack1);
                for (int j = 0; j < this.crafters.size(); ++j)
                {
                    ((ICrafting)this.crafters.get(j)).sendSlotContents(this, i, itemstack1);
                }
            }
        }
        previousAmmo = weaponInv.getStackInSlot(0);
    }
    private ItemStack previousAmmo;
    @Override
    public ItemStack transferStackInSlot(EntityPlayer user, int clicked)
    {
        ItemStack itemstack = null;
        Slot slot = (Slot)this.inventorySlots.get(clicked);

        if (slot != null && slot.getHasStack())
        {
            ItemStack itemstack1 = slot.getStack();
            itemstack = itemstack1.copy();

            if (clicked > 0)//INVENTORY
            {
                if (canAccept(itemstack1))
                {
                    if (!this.mergeItemStack(itemstack1, 0, 1, false))
                    {
                        return null;
                    }
                }
                else if (clicked >= 1 && clicked < 27)//INVENTORY
                {
                    if (!this.mergeItemStack(itemstack1, 27, 36, false))
                    {
                        return null;
                    }
                }
                //BAR
                else if (clicked >= 27 && clicked < 36 && !this.mergeItemStack(itemstack1, 1, 27, false))
                {
                    return null;
                }
            }
            else if (!this.mergeItemStack(itemstack1, 1, 36, false))
            {
                return null;
            }

            if (itemstack1.stackSize == 0)
            {
                slot.putStack((ItemStack)null);
            }
            else
            {
                slot.onSlotChanged();
            }

            if (itemstack1.stackSize == itemstack.stackSize)
            {
                return null;
            }

            slot.onPickupFromSlot(user, itemstack1);
        }

        return itemstack;
    }

	public boolean canAccept(ItemStack ammo)
	{
		String ammoType = "null";
		if(ammo != null && ammo.getItem() instanceof IAmmo)
		{
			ammoType = ((IAmmo)ammo.getItem()).getAmmoType(ammo);
		}
		
		if(weapon != null && weapon.getItem() instanceof IFirearm)
		{
			return ((IFirearm)weapon.getItem()).canAcceptAmmo(weapon, ammoType);
		}
		
		return ammoType.equalsIgnoreCase("arrow");
	}

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