/// <summary>
/// Attempts to finish a drag at the given drag space position.
/// </summary>
public void EndDrag(DragHolder inHolder)
{
if (DraggingObject != null)
{
DragEndState endState;
DragObject dragObject = DraggingObject;
DraggingObject = null;
if (inHolder == null)
{
endState = DragEndState.Empty;
}
else
{
if (inHolder.AllowAddObject(dragObject))
{
dragObject.SetOwner(inHolder);
endState = DragEndState.ValidZone;
}
else
{
LastValidSeat lastSeat = dragObject.GetComponent <LastValidSeat>();
bool bValidSwap = lastSeat != null && lastSeat.LastValidHolder != null;
DragObject swappedObject = null;
if (bValidSwap)
{
bValidSwap = inHolder.AllowSwapObject(dragObject, out swappedObject);
}
if (bValidSwap)
{
bValidSwap = lastSeat.LastValidHolder.AllowAddObject(swappedObject);
}
if (bValidSwap)
{
swappedObject.SetOwner(lastSeat.LastValidHolder);
dragObject.SetOwner(inHolder);
endState = DragEndState.ValidZone;
}
else
{
endState = DragEndState.InvalidZone;
}
}
}
dragObject.DraggingStops(endState);
if (OnDragEnd != null)
{
OnDragEnd(dragObject, endState);
}
}
}
/// <summary>
/// Cancels an existing drag.
/// </summary>
public void CancelDrag()
{
if (DraggingObject != null)
{
DragObject dragObject = DraggingObject;
DraggingObject = null;
dragObject.DraggingStops(DragEndState.Cancelled);
if (OnDragEnd != null)
{
OnDragEnd(dragObject, DragEndState.Cancelled);
}
}
}