private void OnDrop(PointerEventData eventData)
{
if (m_selectedItem == null || m_selectedSlot == null)
{
return;
}
DropItem?.Invoke();
if (ItemUtilities.TryGetSlot(eventData.pointerEnter, out var targetSlot))
{
if (targetSlot.IsEmpty && targetSlot.CanDropItem(m_selectedItem))
{
//just add item to an empty slot
targetSlot.Add(m_selectedItem);
}
else if (targetSlot.IsStackableWith(m_selectedItem))
{
if (targetSlot.TryStackItem(m_selectedItem))
{
//if stacking where successful, reset and stop here
ResetSelection();
return;
}
//targetSlot / item has already maximum stacks
//add selected item back to selected slot
m_selectedSlot.Add(m_selectedItem);
}
else
{
if (targetSlot.CanDropItem(m_selectedItem))
{
//switch items
var otherItem = targetSlot.Content;
targetSlot.Remove();
m_selectedSlot.Add(otherItem);
targetSlot.Add(m_selectedItem);
}
else
{
m_selectedSlot.Add(m_selectedItem);
}
}
}
else
{
//reset to origin, no slot available
m_selectedSlot.Add(m_selectedItem);
}
//in any case reset selected slot, selected item and disable icon
ResetSelection();
}
private void CheckDragableItem(PointerEventData eventData)
{
if (ItemUtilities.TryGetSlot(eventData.pointerEnter, out var targetSlot))
{
if (!targetSlot.IsEmpty)
{
DragItem?.Invoke();
m_selectedSlot = targetSlot;
m_selectedItem = targetSlot.Content;
m_selectedSlot.Remove();
EnableDragableIcon(eventData);
}
}
}
public void OnPointerEnter(GameObject gbj)
{
if (!m_enablePreview)
{
return;
}
if (ItemUtilities.TryGetSlot(gbj, out m_currentTarget))
{
if (!m_currentTarget.IsEmpty)
{
var popUpPosition =
UiUtilities.AnchoredPosition((RectTransform)m_currentTarget.transform,
m_previewPopup.RectTransform,
m_rectAnchor, m_offset);
m_previewPopup.transform.SetAsLastSibling();
m_previewPopup.Show(m_currentTarget, popUpPosition);
}
}
}