public static void AddKeyFrameToCurve(AnimationCurve curve, float time, float framerate, float value, bool stepped)
{
Keyframe keyframe = default(Keyframe);
bool flag = true;
int num = CurveEditUtility.GetKeyframeAtTime(curve, time, framerate);
if (num != -1)
{
flag = false;
keyframe = curve.get_Item(num);
curve.RemoveKey(num);
}
keyframe.set_value(value);
keyframe.set_time(CurveEditUtility.GetKeyTime(time, framerate));
num = curve.AddKey(keyframe);
if (stepped)
{
AnimationUtility.SetKeyBroken(curve, num, stepped);
AnimationUtility.SetKeyLeftTangentMode(curve, num, 3);
AnimationUtility.SetKeyRightTangentMode(curve, num, 3);
keyframe.set_outTangent(float.PositiveInfinity);
keyframe.set_inTangent(float.PositiveInfinity);
}
else if (flag)
{
AnimationUtility.SetKeyLeftTangentMode(curve, num, 4);
AnimationUtility.SetKeyRightTangentMode(curve, num, 4);
}
if (num != -1 && !stepped)
{
AnimationUtility.UpdateTangentsFromModeSurrounding(curve, num);
AnimationUtility.SetKeyBroken(curve, num, false);
}
}