/// <summary>
/// Modifies the pitch and roll angle so that the look direction is parallel to the xy plane.
/// </summary>
public void FlyParallel(int mode = 0)
{
if (speed == 0)
return;
targetLook = LookDirection;
targetLook.Z = 0;
targetLook.Normalize();
targetUp = Math3D.UnitZ;
if (mode != 0)
targetUp = targetUp.Rotate(targetLook, mode * 15);
if (speed == 0 || mode != 0)
{
UpDirection = targetUp;
LookDirection = targetLook;
}
else
{
turnToTarget = true;
}
}
