// add itemScript
public void AddItem(ItemScript itemScript)
{
// adding the itemScript to the slot
items.Push(itemScript);
// checking if there is more the one itemScript
if (items.Count > 1)
{
// adding the number of itemScript to the text
stackText.text = items.Count.ToString();
}
// change the sprite
ChangeSprite(itemScript.GetSpriteNeutral(), itemScript.GetSpriteHighlighted());
}