/// <summary> Fills the designated slot with the items of the same time. </summary>
/// <param name="slotNumber"> Zero-based index of the slot to fill. </param>
/// <param name="stack"> The stack to add to the storage. </param>
/// <returns> The remaining items which could not be added. </returns>
private InventoryStack Fill(int slotNumber, InventoryStack stack)
{
var slot = _slots[slotNumber];
int numberToAdd = Math.Min(slot.ExtraCapacity, stack.Quantity);
// add that much to the current slot
Write(slotNumber, slot.Plus(numberToAdd));
// reduce the current stack by that much
return(stack.Plus(-numberToAdd));
}
/// <summary> Puts items of the designated into the designated empty slot. </summary>
/// <param name="slotNumber"> The position in which to put the stack. </param>
/// <param name="stack"> The stack to add to the storage. </param>
/// <returns> The remaining items that could not be placed in the designated slot. </returns>
private InventoryStack Put(int slotNumber, InventoryStack stack)
{
if (!_slots[slotNumber].IsEmpty)
{
return(stack);
}
int numberToAdd = Math.Min(stack.Model.StackAmount, stack.Quantity);
// add that much to the current slot
Write(slotNumber, new InventoryStack(stack.Model, numberToAdd));
// reduce the current stack by that much
stack = stack.Plus(-numberToAdd);
return(stack);
}