protected void AdjustSelectionBox()
{
if (!SelectBox.isActive)
{
SelectBox.Enable();
}
Vector3 worldClickedPosition = Camera.main.ScreenToWorldPoint(clickedPosition);
Vector3 worldMousePosition = Camera.main.ScreenToWorldPoint(Input.mousePosition);
float xMin = Mathf.Min(worldMousePosition.x, worldClickedPosition.x);
float xMax = Mathf.Max(worldMousePosition.x, worldClickedPosition.x);
float yMin = Mathf.Min(worldMousePosition.y, worldClickedPosition.y);
float yMax = Mathf.Max(worldMousePosition.y, worldClickedPosition.y);
float zMin = Mathf.Min(worldMousePosition.z, worldClickedPosition.z);
float zMax = Mathf.Max(worldMousePosition.z, worldClickedPosition.z);
SelectBox.AdjustSize(new Vector3(xMin, yMin, zMin), new Vector3(xMax, yMax, zMax));
}