void MouseMiddleDown()
{
Vector2 position = GetMousePosition();
AstarBaseNode node = _aStar.GetNode(position);
if (node == null)
{
return;
}
if (node.canThrough)
{
_aStar.SetObstacle(position);
}
else
{
_aStar.RemoveObstacle(position);
}
DoFindPath();
}
