/// <summary>
/// Add a `GameObject` to the first open slot.
/// Expects `GameObject` to have a `Draggable`
/// component attached.
/// </summary>
/// <param name="item">The `GameObject` item to add to
/// this container</param>
public override void Add(GameObject item)
{
Draggable dragHandler = item.GetComponent <Draggable>();
if (dragHandler == null)
{
throw new MissingComponentException("Adding to Container requires `Draggable` component");
}
Stackable stackHandler = item.GetComponent <Stackable>();
Slot emptySlot = null, stackableSlot = null;
foreach (Slot slot in Slots)
{
// retrieve the first empty slot and retain
if (emptySlot == null && slot.Item == null)
{
emptySlot = slot;
// if there's an item in this slot
// but the item being added is stackable
// check if it can stack
}
else if (slot.Item && stackHandler != null)
{
Stackable itemStack = slot.Item.GetComponent <Stackable>();
if (itemStack != null && itemStack.CanStack(stackHandler))
{
stackableSlot = slot;
}
}
}
// add the item to the slot
// will prioritize stackable slot
if (stackableSlot != null)
{
stackableSlot.AddItem(dragHandler);
}
else if (emptySlot != null)
{
emptySlot.AddItem(dragHandler);
}
throw new NotStackableException("Unable to add item (" + dragHandler.name + ") to container ( " + name + ")");
}