void MouseDownEvent()
{
if (Input.GetMouseButtonDown(0) && !isInsert)
{
Vector2 mousePos = Camera.main.ScreenToWorldPoint(Input.mousePosition);
RaycastHit2D[] hitArray = Physics2D.RaycastAll(mousePos, Vector2.zero);
for (int i = 0; i < hitArray.Length; i++)
{
if (hitArray[i].collider.gameObject.name.Contains("Clone") && this.currentChoiceNode == null)
{
currentChoiceNode = hitArray[i].transform;
DragAndDrop dragObj = currentChoiceNode.GetComponent <DragAndDrop>();
ClickObjName = dragObj.name;
RealDragObject = dragObj;
dragObj.SetTraceObjfalse();
break;
}
}
}
}