/// <summary>
/// Constructor.
/// </summary>
/// <param name="from">Anchor point of curve from.</param>
/// <param name="to">Anchor point of curve to.</param>
public BezierCurve(BezierAnchor from, BezierAnchor to)
{
this.from = from;
this.to = to;
}
/// <summary>
/// Evaluate the curve at anchor and time.
/// </summary>
/// <param name="from"></param>
/// <param name="to"></param>
/// <param name="t"></param>
/// <returns></returns>
public static Vector3 Evaluate(BezierAnchor from, BezierAnchor to, float t)
{
return(Mathf.Pow(1 - t, 3) * from.point + 3 * t * Mathf.Pow(1 - t, 2) * from.tangent +
3 * (1 - t) * Mathf.Pow(t, 2) * to.tangent + Mathf.Pow(t, 3) * to.point);
}
/// <summary>
/// Transform anchor.
/// </summary>
/// <param name="anchor"></param>
/// <returns></returns>
protected BezierAnchor TransformAnchor(BezierAnchor anchor)
{
anchor.point = transform.TransformPoint(anchor.point);
anchor.tangent = transform.TransformVector(anchor.tangent);
return(anchor);
}