/// <param name="normalizedTime">Should be float between 0f-1f.</param>
private T GetValue(float normalizedTime)
{
const float fallbackEasingEndTime = 1f;
var easingLength = _curve.GetEndTime(fallbackEasingEndTime);
var amount = _curve.Evaluate(normalizedTime * easingLength);
return(_lerp(_startValue, _endValue, amount));
}
/// <summary>
/// Gets the gradient at the given time.
/// </summary>
/// <returns>The gradient.</returns>
/// <param name="extends">Extends.</param>
/// <param name="time">Time.</param>
public static float GetGradient(this AnimationCurve extends, float time)
{
float end = extends.GetEndTime();
bool isEnd = HydraMathUtils.Approximately(end, time);
float firstTime = isEnd ? time - CURVE_DELTA_FUDGE : time;
float secondTime = isEnd ? time : time + CURVE_DELTA_FUDGE;
// Cheat and check the value at time + some small amount
float first = extends.Evaluate(firstTime);
float second = extends.Evaluate(secondTime);
return((second - first) / CURVE_DELTA_FUDGE);
}
/// <param name="curve"></param>
/// <param name="time">A value between 0.0f and 1.0f</param>
public static float EvaluateAtNormalizedTime(this AnimationCurve curve, float time)
{
time = Mathf.Clamp01(time);
return(curve.Evaluate(time * curve.GetEndTime()));
}
/// <summary>
/// Gets the length of the curve.
/// </summary>
/// <returns>The time length.</returns>
/// <param name="extends">Extends.</param>
public static float GetTimeLength(this AnimationCurve extends)
{
return(extends.GetEndTime() - extends.GetStartTime());
}
