private static void ConvertAssimpMetadataToProperties(Ai.Metadata metadata, Node node)
{
foreach (var metadataEntry in metadata)
{
UserProperty property = null;
// Skip some garbage entries
if (metadataEntry.Key == "IsNull" ||
metadataEntry.Key == "InheritType" ||
metadataEntry.Key == "DefaultAttributeIndex" ||
metadataEntry.Key == "UserProperties" || // dupe of UDP3DSMAX
metadataEntry.Key == "MaxHandle")
{
continue;
}
if (metadataEntry.Key == "UDP3DSMAX")
{
var properties = (( string )metadataEntry.Value.Data)
.Split(new[] { "&cr;&lf;", "\r\n", "\n" }, StringSplitOptions.RemoveEmptyEntries);
if (properties.Length == 0)
{
continue;
}
foreach (var propertyString in properties)
{
// Parse property string
KeyValuePair <string, string> kvp;
if (propertyString.Contains('='))
{
var split = propertyString.Split('=');
kvp = new KeyValuePair <string, string>(split[0].TrimEnd(), split[1].TrimStart());
}
else
{
var split = propertyString.Split(' ');
kvp = new KeyValuePair <string, string>(split[0], split.Length > 1 ? split[1] : null);
}
// Parse value
if (kvp.Value == null)
{
// Assume flag bool
property = new UserBoolProperty(kvp.Key, true);
}
else if (kvp.Value.StartsWith("[") && kvp.Value.EndsWith("]"))
{
// Array/Vector
var arrayContents = kvp.Value.Substring(1, kvp.Value.Length - 2);
var arrayValues = arrayContents.Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
var arrayFloatValues = new List <float>();
foreach (var arrayValue in arrayValues)
{
if (!float.TryParse(arrayValue, out var arrayFloatValue))
{
throw new Exception($"Failed to parse array user property value as float: {arrayValue}");
}
arrayFloatValues.Add(arrayFloatValue);
}
if (arrayFloatValues.Count == 3)
{
property = new UserVector3Property(kvp.Key, new Vector3(arrayFloatValues[0], arrayFloatValues[1], arrayFloatValues[2]));
}
else if (arrayFloatValues.Count == 4)
{
property = new UserVector4Property(kvp.Key, new Vector4(arrayFloatValues[0], arrayFloatValues[1], arrayFloatValues[2], arrayFloatValues[3]));
}
else
{
var arrayByteValues = arrayFloatValues.Cast <byte>();
property = new UserByteArrayProperty(kvp.Key, arrayByteValues.ToArray());
}
}
else if (int.TryParse(kvp.Value, out int intValue))
{
property = new UserIntProperty(kvp.Key, intValue);
}
else if (float.TryParse(kvp.Value, out float floatValue))
{
property = new UserFloatProperty(kvp.Key, floatValue);
}
else if (bool.TryParse(kvp.Value, out bool boolValue))
{
property = new UserBoolProperty(kvp.Key, boolValue);
}
else
{
property = new UserStringProperty(kvp.Key, kvp.Value);
}
}
}
else
{
switch (metadataEntry.Value.DataType)
{
case Ai.MetaDataType.Bool:
property = new UserBoolProperty(metadataEntry.Key, metadataEntry.Value.DataAs <bool>().Value);
break;
case Ai.MetaDataType.Int32:
property = new UserIntProperty(metadataEntry.Key, metadataEntry.Value.DataAs <int>().Value);
break;
case Ai.MetaDataType.UInt64:
property = new UserByteArrayProperty(metadataEntry.Key, BitConverter.GetBytes(metadataEntry.Value.DataAs <ulong>().Value));
break;
case Ai.MetaDataType.Float:
property = new UserFloatProperty(metadataEntry.Key, metadataEntry.Value.DataAs <float>().Value);
break;
case Ai.MetaDataType.String:
property = new UserStringProperty(metadataEntry.Key, ( string )metadataEntry.Value.Data);
break;
case Ai.MetaDataType.Vector3D:
var data = metadataEntry.Value.DataAs <Ai.Vector3D>().Value;
property = new UserVector3Property(metadataEntry.Key, new Vector3(data.X, data.Y, data.Z));
break;
default:
throw new ArgumentOutOfRangeException();
}
}
if (property == null)
{
throw new Exception("Property shouldn't be null");
}
node.Properties.Add(property.Name, property);
}
}