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/**
* Called when a player shift-clicks on a slot. You must override this or you will crash when someone does that.
*/
public ItemStack transferStackInSlot(EntityPlayer par1EntityPlayer, int par2)
{
ItemStack itemstack = null;
Slot slot = (Slot)this.inventorySlots.get(par2);

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

// If itemstack is in Output stack
if (par2 == OUTPUT)
{
// try to place in player inventory / action bar; add 36+1 because mergeItemStack uses < index,
// so the last slot in the inventory won't get checked if you don't add 1
if (!this.mergeItemStack(itemstack1, OUTPUT+1, OUTPUT+36+1, true))
{
return null;
}

slot.onSlotChange(itemstack1, itemstack);
}
// itemstack is in player inventory, try to place in appropriate furnace slot
else if (par2 != FUEL && par2 != INPUT_1 && par2 != INPUT_2)
{
// if it can be smelted, place in the input slots
if (ArcaneInfuserRecipes.infusing().getInfusingResult(itemstack1) != null)
{
// try to place in either Input slot; add 1 to final input slot because mergeItemStack uses < index
if (!this.mergeItemStack(itemstack1, INPUT_1, INPUT_2+1, false))
{
return null;
}
}
// if it's an energy source, place in Fuel slot
else if (TileEntityArcaneInfuser.isItemFuel(itemstack1))
{
if (!this.mergeItemStack(itemstack1, FUEL, FUEL+1, false))
{
return null;
}
}
// item in player's inventory, but not in action bar
else if (par2 >= OUTPUT+1 && par2 < OUTPUT+28)
{
// place in action bar
if (!this.mergeItemStack(itemstack1, OUTPUT+28, OUTPUT+37, false))
{
return null;
}
}
// item in action bar - place in player inventory
else if (par2 >= OUTPUT+28 && par2 < OUTPUT+37 && !this.mergeItemStack(itemstack1, OUTPUT+1, OUTPUT+28, false))
{
return null;
}
}
// In one of the infuser slots; try to place in player inventory / action bar
else if (!this.mergeItemStack(itemstack1, OUTPUT+1, OUTPUT+37, false))
{
return null;
}

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

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

slot.onPickupFromSlot(par1EntityPlayer, itemstack1);
}
return itemstack;
}
}

public class ContainerEye extends Container
{
public IInventory inventory;

private final EntityPlayer player;

// For this particular case, there are only 2 slots in the custom inventory, plus a slot that is 'active'
// but not able to interact with (like an active spell slot that doesn't really contain an item)
static final int ACTIVE_SLOT = 2;

// Note how these all back-reference themselves, so all you need to do is change the initial value and the
// rest are automatically adjusted! Just swap ACTIVE_SLOT with your inventory index like the above tut
private static final int ARMOR_START = ACTIVE_SLOT+1, ARMOR_END = ARMOR_START+3, INV_START = ARMOR_END+1, INV_END = INV_START+26, HOTBAR_START = INV_END+1, HOTBAR_END = HOTBAR_START+8;

public ContainerEye(EntityPlayer parPlayer, InventoryPlayer inventoryPlayer, InventoryEye inventoryEye)
{
this.inventory = inventoryEye;

this.player = parPlayer;

int i;

// CUSTOM INVENTORY SLOTS
this.addSlotToContainer(new SlotEye(inventory, 0, 80, 8));
this.addSlotToContainer(new SlotEye(inventory, 1, 80, 26));
this.addSlotToContainer(new SlotEyeActive(inventory, ACTIVE_SLOT, 116, 26));

// ARMOR SLOTS (note I had to make my own custom SlotArmor, as vanilla version is not public)
for (i = 0; i < 4; ++i)
{
this.addSlotToContainer(new SlotArmor(this.player, inventoryPlayer, inventoryPlayer.getSizeInventory() - 1 - i, 8, 8 + i * 18, i));
}

// PLAYER INVENTORY SLOTS
for (i = 0; i < 3; ++i)
{
for (int j = 0; j < 9; ++j)
{
this.addSlotToContainer(new Slot(inventoryPlayer, j + i * 9 + 9, 8 + j * 18, 84 + i * 18));
}
}

// PLAYER ACTION BAR SLOTS
for (i = 0; i < 9; ++i)
{
this.addSlotToContainer(new Slot(inventoryPlayer, i, 8 + i * 18, 142));
}
}

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

/**
* Called when a player shift-clicks on a slot. You must override this or you will crash when someone does that.
*/
public ItemStack transferStackInSlot(EntityPlayer par1EntityPlayer, int par2)
{
ItemStack itemstack = null;
Slot slot = (Slot)this.inventorySlots.get(par2);

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

// Either armor or sharingan eye
if (par2 < ARMOR_END + 1 && par2 != ACTIVE_SLOT)
{
// try to place in player inventory / action bar
if (!this.mergeItemStack(itemstack1, INV_START, HOTBAR_END + 1, true))
{
return null;
}

slot.onSlotChange(itemstack1, itemstack);
}
// Item is in inventory / hotbar, try to place either in eye or armor slots
else
{
// if item is a sharingan eye
if (itemstack1.getItem() instanceof ItemScroll)
{
if (!this.mergeItemStack(itemstack1, 0, ACTIVE_SLOT, false))
{
return null;
}
}
// if item is armor
else if (itemstack1.getItem() instanceof ItemArmor) {
int type = ((ItemArmor) itemstack1.getItem()).armorType;
if (!this.mergeItemStack(itemstack1, ARMOR_START + type, ARMOR_START + type + 1, false))
{
return null;
}
}
// item in player's inventory, but not in action bar
else if (par2 >= INV_START && par2 < HOTBAR_START)
{
// place in action bar
if (!this.mergeItemStack(itemstack1, HOTBAR_START, HOTBAR_START + 1, false))
{
return null;
}
}
// item in action bar - place in player inventory
else if (par2 >= HOTBAR_START && par2 < HOTBAR_END + 1)
{
if (!this.mergeItemStack(itemstack1, INV_START, INV_END + 1, false))
{
return null;
}
}
}

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

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

slot.onPickupFromSlot(par1EntityPlayer, itemstack1);
}

return itemstack;
}
}