/// <summary>
/// Initialises a new instance of the <see cref="CameraPathInterpolator" /> class.
/// </summary>
/// <param name="points">The list of nodes along a complete camera path.</param>
/// <param name="target">The target, if any, that the camera focusses on as it traverses the path.</param>
internal CameraPathInterpolator(IEnumerable <CameraPoint> points, Vec3d target = null)
{
_cameraPath = points.ToList();
// NOTE: We don't count the origin position in the count here.
_nodesToTravel = _cameraPath.Count - 1;
_point = new CameraPoint();
var linearPath = _cameraPath.Count == 2;
var tmpInterpolator = linearPath
? LinearInterpolator.Create(_point)
: CubicInterpolator.Create(_point);
_interpolator = target != null
? TargetInterpolator.Create(tmpInterpolator, _point, target)
: tmpInterpolator;
}
/// <summary>
/// Initialises a new instance of the <see cref="TargetInterpolator" /> class.
/// </summary>
/// <param name="interpolator">The base interpolator to use for position and additional angles.</param>
/// <param name="point">The camera point to transpose values into.</param>
/// <param name="targetPos">The target position for the camera to focus on.</param>
internal static ICameraPointInterpolator Create(
ICameraPointInterpolator interpolator, CameraPoint point, Vec3d targetPos)
{
return(new TargetInterpolator(interpolator, point, targetPos));
}
/// <summary>
/// Initialises a new instance of the <see cref="TargetInterpolator" /> class.
/// </summary>
/// <param name="interpolator">The base interpolator to use for position and additional angles.</param>
/// <param name="point">The camera point to transpose values into.</param>
/// <param name="targetPos">The target position for the camera to focus on.</param>
private TargetInterpolator(ICameraPointInterpolator interpolator, CameraPoint point, Vec3d targetPos) :
base(point)
{
(Interpolator, TargetPos) = (interpolator, targetPos);
}
