public bool TransactionalRemove(EditorItemStack[] editorItemStacks)
{
// Each transaction consists of a slot ID to identify where the items came from and an
// ItemStack which defines what was removed
List <Tuple <int, ItemStack> > transactions = new List <Tuple <int, ItemStack> >();
//int[] transactions = new int[editorItemStacks.Length * 3];
bool success = true;
// Go through each required item
foreach (var itemStack in editorItemStacks)
{
// Track how many of the item we still need
ushort count = itemStack.Count;
// Find all of the slots that contain the item we are looking for
var slots = GetSlotsForItem(itemStack.Item.Id);
// If there are slots with the item we need then:
// - Loop over each slot
// - Remove as many items from the slot as we can (never removing more than we need)
// -
if (slots != null)
{
foreach (var slotIndex in slots)
{
ISlot slot = _slots[(int)slotIndex];
ushort slotCount = slot.ItemStack.Count;
ItemStack removed = null;
// If there are more in the slot than we need, remove the exact amount we need
if (slotCount > count)
{
removed = slot.Remove(count);
slotCount = count; // reuse the variable to track how many we removed
}
else
{
// NOTE: This is where the current error is branching to before executing
removed = slot.Remove();
}
// If there was an item to remove, track the transaction as (slot affected, number of items removed)
if (removed != null)
{
transactions.Add(new Tuple <int, ItemStack>((int)slotIndex, removed));
}
// Reduce the count by the amount of items we just removed from the current slot
count -= slotCount;
// If we have removed all of the items we need, then stop looping over the slots with the item we needed
if (count == 0)
{
break;
}
}
}
// Now that we have either looped over all the slots for the item we currently need, check if we removed the correct amount
if (count > 0)
{
success = false;
break;
}
}
if (!success)
{
Rollback(transactions);
}
return(success);
}
public virtual ItemStack Remove() => _slot.Remove();
