/// <summary>
/// 返回直接或间接的对象，根据名字查询
/// </summary>
/// <example> Get all QuadTileSets defined in this world:
/// <code>
/// RenderableObjectList allQTS = CurrentWorld.RenderableObjects.GetObjects(null, typeof(QuadTileSet));
/// </code></example>
/// <param name="name">The name of the <c>RenderableObject</c> to search for, or <c>null</c> if any name should match.</param>
/// <param name="objectType">The object type to search for, or <c>null</c> if any type should match.</param>
/// <returns>A list of all <c>RenderableObject</c>s that match the given search criteria (may be empty), or <c>null</c> if an error occurred.</returns>
public virtual RenderableObjectList GetObjects(string name, Type objectType)
{
RenderableObjectList result = new RenderableObjectList("results");
m_childrenRWLock.AcquireReaderLock(Timeout.Infinite);
try
{
foreach (RenderableObject ro in this.m_children)
{
if (ro.GetType() == typeof(RenderableObjectList))
{
RenderableObjectList sub = ro as RenderableObjectList;
RenderableObjectList subres = sub.GetObjects(name, objectType);
foreach (RenderableObject hit in subres.ChildObjects)
{
result.Add(hit);
}
}
if (ro.Name.Equals(name) && ((objectType == null) || (ro.GetType() == objectType)))
{
result.Add(ro);
}
}
}
catch
{
result = null;
}
finally
{
m_childrenRWLock.ReleaseReaderLock();
}
return(result);
}
