public static void SetKeyModeFromContext(this AnimationCurve curve, int keyIndex)
{
Keyframe key = curve [keyIndex];
bool flag = false;
if (keyIndex > 0 && curve [keyIndex - 1].GetKeyBroken())
{
flag = true;
}
if (keyIndex < curve.length - 1 && curve [keyIndex + 1].GetKeyBroken())
{
flag = true;
}
key.SetKeyBroken(flag);
if (flag)
{
if (keyIndex > 0)
{
key.SetKeyTangentMode(0, curve [keyIndex - 1].GetKeyTangentMode(1));
}
if (keyIndex < curve.length - 1)
{
key.SetKeyTangentMode(1, curve [keyIndex + 1].GetKeyTangentMode(0));
}
}
else
{
TangentMode mode = TangentMode.Smooth;
if (keyIndex > 0 && curve [keyIndex - 1].GetKeyTangentMode(1) != TangentMode.Smooth)
{
mode = TangentMode.Editable;
}
if (keyIndex < curve.length - 1 && curve [keyIndex + 1].GetKeyTangentMode(0) != TangentMode.Smooth)
{
mode = TangentMode.Editable;
}
key.SetKeyTangentMode(0, mode);
key.SetKeyTangentMode(1, mode);
}
curve.MoveKey(keyIndex, key);
}