public void GridUIOnLeftBeginDrag(Transform gridTransform) //开始拖动
{
if (gridTransform.childCount == 0) //格子上没有物品
{
isDragNull = true; //禁止拖动空格子
return;
}
else
{
isDragNull = false;
//drag item更新为选择的物品
Item item = ItemModel.GetItem(gridTransform.name);
if (item != null)
{
dragUI.UpdateIcon(item.iconIndex);
dragUI.UpdateCount(item.count);
//将选择的物品从格子上销毁
Destroy(gridTransform.GetChild(0).gameObject);
//显示拖动物品
Vector2 position;
RectTransformUtility.ScreenPointToLocalPointInRectangle(GameObject.Find("Canvas").transform as RectTransform,
Input.mousePosition, null, out position);
dragUI.SetLocalPosition(position);
dragUI.ShowItem();
}
}
}