@Override
public ItemStack transferStackInSlot(EntityPlayer player, int slotNumber) {
ItemStack stack = null;
Slot slot = (Slot) inventorySlots.get(slotNumber);
if (slot != null && slot.getHasStack()) {
ItemStack slotClicked = slot.getStack();
stack = slotClicked.copy();
if (slotNumber <= 36) {
if (slotNumber == 0 && stack != null && stack.stackSize > 0) {
tile.decrementCraftingField();
}
if (!mergeItemStack(slotClicked, 37, inventorySlots.size(), true)) {
return null;
}
} else {
stack = null;
}
if (slotClicked.stackSize == 0) {
slot.putStack(null);
} else {
slot.onSlotChanged();
}
}
return stack;
}
@Override
public void onPickupFromSlot(
int slotNumber, IInventory inventory, EntityPlayer player, ItemStack stack) {
if (slotNumber == 0 && tile.getStackInSlot(0) != null && tile.getStackInSlot(0).stackSize > 0) {
tile.decrementCraftingField();
}
}