/// <summary>
/// Initializes a new instance of the <see cref="AvatarPose"/> class for the given skeleton.
/// </summary>
/// <param name="skeleton">The skeleton.</param>
/// <exception cref="ArgumentNullException">
/// <paramref name="skeleton"/> is <see langword="null"/>.
/// </exception>
/// <exception cref="ArgumentException">
/// <paramref name="skeleton"/> is not a valid Xbox LIVE Avatar skeleton.
/// </exception>
public AvatarPose(Skeleton skeleton)
{
if (skeleton.NumberOfBones != AvatarRenderer.BoneCount)
{
throw new ArgumentException("The specified skeleton is not a valid Avatar skeleton.", "skeleton");
}
_expressionWrapper = new DelegateAnimatableProperty <AvatarExpression>(
() => _expression, // Getter
e => _expression = e); // Setter
_skeletonPose = SkeletonPose.Create(skeleton);
}