/// <summary>
/// 現在のモーションオブジェクトのタイプから，オブジェクトのインスタンスを作成して返します．
/// </summary>
public MotionObject GetEmptyObject()
{
if (ObjectType == null)
{
throw new InvalidOperationException("cannot create MotionObject of null Type");
}
if (_emptyObject == null)
{
lock (this) {
_emptyObject = (MotionObject)Activator.CreateInstance(ObjectType);
return((MotionObject)_emptyObject.Clone());
}
}
return((MotionObject)_emptyObject.Clone());
}
/// <summary>
/// 指定された方がモーションオブジェクトのタイプであるかを検証し，検証に失敗すれば例外をスローします．
/// </summary>
/// <param name="motionObjectType"></param>
public static void IsMotionObjectTypeOrThrow(Type motionObjectType)
{
if (motionObjectType == null)
{
throw new ArgumentNullException("motionObjectType", "'motionObjectType' cannot be null");
}
if (!motionObjectType.IsSubclassOf(typeof(MotionObject)))
{
throw new ArgumentException(string.Format("{0} is not subclass of MotionObject", motionObjectType));
}
if (motionObjectType.IsAbstract)
{
throw new ArgumentException(string.Format("{0} is Abstract Type", motionObjectType));
}
if (motionObjectType.GetConstructor(System.Type.EmptyTypes) == null)
{
throw new ArgumentException(string.Format("{0} does not have constructor with no parameter", motionObjectType));
}
MotionObject @object = (MotionObject)Activator.CreateInstance(motionObjectType);
Object clone = @object.Clone();
if (clone.GetType() != motionObjectType)
{
throw new ArgumentException(string.Format("{0}.Clone() returns not {0} but {1}", motionObjectType, clone.GetType()));
}
MemoryStream stream = new MemoryStream();
try {
using (BinaryWriter writer = new BinaryWriter(stream)) {
@object.WriteBinary(writer);
}
} catch (Exception ex) {
throw new ArgumentException(string.Format("{0} failed to WriteBinary with default data", motionObjectType), ex);
}
stream = new MemoryStream(stream.ToArray());
try {
using (BinaryReader reader = new BinaryReader(stream)) {
((MotionObject)clone).ReadBinary(reader);
}
} catch (Exception ex) {
throw new ArgumentException(string.Format("{0} failed to WriteBinary and ReadBinary with default data", motionObjectType), ex);
}
}
/// <summary>
/// IDを指定してオブジェクトを取得します．
/// </summary>
/// <param name="id"></param>
/// <returns></returns>
public MotionObject GetObject(uint id)
{
MotionObject tmp = _frame.GetObject(id);
return(tmp == null ? null : (MotionObject)tmp.Clone());
}
/// <summary>
/// オブジェクト情報を指定してオブジェクトを取得します
/// </summary>
/// <param name="info"></param>
/// <returns></returns>
public MotionObject GetObject(IReadableMotionObjectInfo info)
{
MotionObject tmp = _frame.GetObject(info);
return(tmp == null ? null : (MotionObject)tmp.Clone());
}
/// <summary>
/// IDを指定してオブジェクトを取得します．
/// </summary>
/// <param name="id"></param>
/// <returns></returns>
public MotionObject this[uint id] {
get {
MotionObject tmp = _frame.GetObject(id);
return(tmp == null ? null : (MotionObject)tmp.Clone());
}
}