public static BvhDocument Parse(string text)
{
var rt = new BvhDocument();
var tokenizer = new BvhTokenizer(text);
var header = new[] { "HIERARCHY" };
if (!tokenizer.Take(header.Length).Select(_ => _.Text).SequenceEqual(header))
{
throw new InvalidOperationException("invalid format");
}
foreach (var i in tokenizer)
{
if (i.Kind == BvhTokenizer.IdentifierTokenKind)
{
switch (i.Text)
{
case "ROOT":
rt.Root = BvhJoint.Parse(BvhData.Parse(tokenizer));
break;
case "MOTION":
rt.Motion = BvhMotion.Parse(rt, tokenizer);
break;
}
}
}
return(rt);
}
public static BvhJoint Parse(BvhData data)
{
var rt = new BvhJoint
{
baseData = data,
Kind = (BvhKind)Enum.Parse(typeof(BvhKind), data.Name, true),
Name = data.Values.First(),
Offset = data.Child("OFFSET").Values.Select(_ => float.Parse(_)).ToArray(),
Channels = data.Child("CHANNELS").Values.Skip(1).Select(_ => (BvhChannel)Enum.Parse(typeof(BvhChannel), _, true)).ToArray(),
};
foreach (var i in data.Children)
if (i.Name == "JOINT" || i.Name == "End")
rt.Children.Add(Parse(i));
return rt;
}
public static BvhJoint Parse(BvhData data)
{
var rt = new BvhJoint
{
baseData = data,
Kind = (BvhKind)Enum.Parse(typeof(BvhKind), data.Name, true),
Name = data.Values.First(),
Offset = data.Child("OFFSET").Values.Select(_ => float.Parse(_)).ToArray(),
Channels = data.Child("CHANNELS").Values.Skip(1).Select(_ => (BvhChannel)Enum.Parse(typeof(BvhChannel), _, true)).ToArray(),
};
foreach (var i in data.Children)
{
if (i.Name == "JOINT" || i.Name == "End")
{
rt.Children.Add(Parse(i));
}
}
return(rt);
}
static IEnumerable<BvhJoint> GetJoints(BvhJoint item)
{
return new[] { item }.Concat(item.Children.SelectMany(GetJoints));
}
static IEnumerable <BvhJoint> GetJoints(BvhJoint item)
{
return(new[] { item }.Concat(item.Children.SelectMany(GetJoints)));
}