private static void Internal_UpdateTangents(AnimationCurve curve, int index)
{
if (index < 0 || index >= curve.length)
{
throw new ArgumentException("Index out of bounds.");
}
Keyframe key = curve[index];
if (AnimationUtility.Internal_GetKeyLeftTangentMode(key) == AnimationUtility.TangentMode.Linear && index >= 1)
{
key.inTangent = AnimationUtility.Internal_CalculateLinearTangent(curve, index, index - 1);
curve.MoveKey(index, key);
}
if (AnimationUtility.Internal_GetKeyRightTangentMode(key) == AnimationUtility.TangentMode.Linear && index + 1 < curve.length)
{
key.outTangent = AnimationUtility.Internal_CalculateLinearTangent(curve, index, index + 1);
curve.MoveKey(index, key);
}
if (AnimationUtility.Internal_GetKeyLeftTangentMode(key) == AnimationUtility.TangentMode.Auto || AnimationUtility.Internal_GetKeyRightTangentMode(key) == AnimationUtility.TangentMode.Auto)
{
curve.SmoothTangents(index, 0f);
}
if (AnimationUtility.Internal_GetKeyLeftTangentMode(key) == AnimationUtility.TangentMode.Free && AnimationUtility.Internal_GetKeyRightTangentMode(key) == AnimationUtility.TangentMode.Free && !AnimationUtility.Internal_GetKeyBroken(key))
{
key.outTangent = key.inTangent;
curve.MoveKey(index, key);
}
if (AnimationUtility.Internal_GetKeyLeftTangentMode(key) == AnimationUtility.TangentMode.Constant)
{
key.inTangent = float.PositiveInfinity;
curve.MoveKey(index, key);
}
if (AnimationUtility.Internal_GetKeyRightTangentMode(key) == AnimationUtility.TangentMode.Constant)
{
key.outTangent = float.PositiveInfinity;
curve.MoveKey(index, key);
}
}
internal static AnimationUtility.TangentMode GetKeyLeftTangentMode(Keyframe key)
{
return(AnimationUtility.Internal_GetKeyLeftTangentMode(key));
}