/// <summary>
/// Coroutine that does the actual flyby logic.
/// </summary>
/// <param name="delay">delay between each location, in seconds.</param>
/// <remarks>
/// This logic is in a coroutine so that we don't have to put it in Update;
/// Coroutines provide an easy way to keep track of time past
/// </remarks>
IEnumerator FlybyCoroutine(float delay)
{
// wait for delay, if there's any
if (delay > 0)
{
yield return(new WaitForSecondsRealtime(delay));
}
IsDoingFlyby = true;
while (true)
{
foreach (var l in locations)
{
// calculate distance manually because we want to fly nearer
Vector3 northeast = MapCamera.LatLongToUnity(l.viewport.northeast),
southwest = MapCamera.LatLongToUnity(l.viewport.southwest);
float diag = (northeast - southwest).magnitude; // viewport diagonal distance
float dist = Mathf.Clamp(diag / 2f, 0.5f, camera.maxDistance);
camera.SetCameraViewport(l, dist, true);
camera.TargetElevation = 30f; // nice angle
// wait for delay to fly to next location
yield return(new WaitForSecondsRealtime(flybyInterval));
}
}
}
