//------------------------ events -------------------------
void OnMouseDown()
{
RaycastHit hit;
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
if (Physics.Raycast(ray, out hit))
{
cam.AdjustPath(Quaternion.LookRotation(hit.point));
int[] selected_quad = TerrainHelper.TriangleIndices(hit.triangleIndex);
string debug_text = hit.triangleIndex.ToString() + ": "
+ selected_quad[0].ToString() + ", "
+ selected_quad[1].ToString();
Debug.Log(debug_text);
}
}