public static bool HaveKeysInRange(AnimationCurve curve, float beginTime, float endTime)
{
for (int i = curve.length - 1; i >= 0; i--)
{
Keyframe keyframe = curve[i];
if (keyframe.time >= beginTime)
{
Keyframe keyframe2 = curve[i];
if (keyframe2.time < endTime)
{
return true;
}
}
}
return false;
}