public void Lift(ItemInstanceView original, bool half = false)
{
_originalLiftedItem = original;
_clonedLiftedItem = Instantiate(_originalLiftedItem).GetComponent <ItemInstanceView>();
_clonedLiftedItem._canvasGroup.blocksRaycasts = false;
_clonedLiftedItem._canvasGroup.interactable = false;
_clonedLiftedItem.SetItem(new ItemInstance(_originalLiftedItem.Item));
var clonedRect = _clonedLiftedItem.GetComponent <RectTransform>();
clonedRect.sizeDelta = new Vector2(64, 64); // todo; hacky
clonedRect.pivot = Vector2.one / 2f;
int amount = _originalLiftedItem.Item.Quantity.Value;
if (_singleMode)
{
amount = 1;
}
else if (half)
{
amount = Mathf.Max(1, _originalLiftedItem.Item.Quantity.Value / 2);
}
Lift(amount);
original._canvasGroup.alpha = 0.33f;
_clonedLiftedItem.transform.SetParent(_mainCanvas);
_clonedLiftedItem.transform.localScale = Vector3.one;
var rect = _clonedLiftedItem.transform as RectTransform;
rect.anchorMin = new Vector2(0.5f, 0.5f);
rect.anchorMax = new Vector2(0.5f, 0.5f);
MoveRectToMouse(rect);
_lifting = true;
Observable.EveryUpdate().TakeWhile((x) => _lifting).Subscribe(x =>
{
MoveRectToMouse(rect);
});
}
private void Lift(int amount)
{
var amountLeft = _originalLiftedItem.Item.Quantity.Value - amount;
_originalLiftedItem.Item.Set(amountLeft);
_clonedLiftedItem.Item.Set(amount);
OnCancel = () =>
{
_originalLiftedItem.Item.ItemType.Value = _clonedLiftedItem.Item.ItemType.Value;
_originalLiftedItem.Item.Quantity.Value = _originalLiftedItem.Item.Quantity.Value + _clonedLiftedItem.Item.Quantity.Value;
CancelLift();
};
Action <ItemInstance> move = (target) =>
{
// merging
if (target.ItemType.Value == _clonedLiftedItem.Item.ItemType.Value)
{
var overflow = target.Add(_clonedLiftedItem.Item.Quantity.Value);
if (overflow > 0)
{
_originalLiftedItem.SetItem(new ItemInstance(_clonedLiftedItem.Item.ItemType.Value, overflow));
}
FinishLift();
}
// there is still something in the original stack, cloned stack and target stack. We are lifting a portion, you can't put that in the target stack then
else if (!_originalLiftedItem.IsEmpty && !_clonedLiftedItem.IsEmpty && !target.IsEmpty)
{
OnCancel();
}
// most common case, lifting a full stack onto another item
else
{
var targetBefore = new ItemInstance(target);
bool success = target.CanMove(_clonedLiftedItem.Item) && _originalLiftedItem.CanMove(targetBefore);
if (success)
{
target.Set(_clonedLiftedItem.Item);
if (_originalLiftedItem.IsEmpty)
{
_originalLiftedItem.Item.Set(targetBefore);
}
FinishLift();
}
else
{
OnCancel();
}
}
};
OnTryLiftEnd = (targetView) =>
{
var canMove = targetView.CanMove(_clonedLiftedItem.Item);
if (canMove)
{
move(targetView.Item);
}
else
{
OnCancel();
}
};
OnComplete = (item) =>
{
move(item);
};
}