public void OnBeginDrag(PointerEventData eventData)
{
isDragCanceled = false;
if (!alreadyUsed)
{
//allow dragging from item slot or from level if in pickup range
bool isInRange = false;
if (isAttachedToItemSlot ||
(isInRange = IsInPickupRange()))
{
//allow to detect drop (fe. on item slots), this wont catch UIraycasts when dragging
canvasGroup.blocksRaycasts = false;
SetHigherSortingLayer();
ToggleItemSlotHighlights(true);
isDragged = true;
}
if (!isAttachedToItemSlot && !isInRange)
{
HelperText.DisplayText("Out of range", 1f);
}
}
}
public bool PlaceOnDropTarget(ItemDropTarget dropTarget)
{
if (dropTarget == null)
{
Debug.LogError($"Cannot find {nameof(dropTarget)} component");
}
//is drop target valid?can we drop this item here?(f.e this key's uid matches the keypillar's allowed uids)
if (dropTarget.IsValidForItem(this.Uid))
{
//empty item slot of current item
var slot = GetAttachedItemSlot();
if (slot == null)
{
//slot might be null when loading already placed object
SlotUid = null;
}
else
{
//placing item in dropTarget so need to empty the inventory slot it occupies
slot.SetSlotState(null);
SlotUid = null;
}
//restore parent to worldPointCanvas and then perform placement positioning
RestoreInitialValues();
dropTarget.PlaceItem(this);
DropTargetId = dropTarget.Uid;
alreadyUsed = true;
return(true);
}
else
{
HelperText.DisplayText(StringResources.HelpMessages.Item_InvalidPlacement, Constants.HelpMessage_ShortDuration);
Debug.LogWarning(string.Format(StringResources.System_Messages.DropTarget_ValidationFailedFormat,
dropTarget.name, this.name, this.Uid));
return(false);
}
}