void SwapWith(Slot _slot, bool readOnlySource, bool readOnlyTarget)
{
if (_slot == null)
{
// call a virtual function on the container that can eg spawn the item into the world
if (slot.container != null)
{
slot.container.ThrowAway(this);
}
// dispose if we're throwing the item away, no slot was under the mouse
if (!readOnlySource)
{
SetObject(null);
}
}
else
{
// swap the two valid slot items around
Draggable other = _slot.item;
if (other)
{
UnityEngine.Object o = obj;
if (!readOnlyTarget)
{
other.SetObject(o);
if (o != null && other.slot != null)
{
other.slot.onSlot.Invoke();
}
}
}
}
}
// create a Slot (or use the optional supplied one) and populate it with the given object
protected Slot MakeSlot(UnityEngine.Object obj, Slot preMade = null)
{
GameObject go = null;
Slot slot = preMade;
if (slot != null)
{
// use the existing one and get its GameObject
go = slot.gameObject;
}
else
{
// make a child slot
go = Instantiate(slotPrefab.gameObject, transform);
slot = go.GetComponent <Slot>();
}
// make an item object inside it as a child
GameObject goi = Instantiate(itemPrefab.gameObject, slot.GetSlot());
Draggable item = goi.GetComponent <Draggable>();
item.SetObject(obj);
// set up all required pointers
slot.item = item;
slot.container = this;
item.slot = slot;
return(slot);
}