IEnumerator <GoObject> IEnumerable <GoObject> .GetEnumerator()
{
GoLayerEnumerator goLayerEnumerator = this;
goLayerEnumerator.Reset();
return(goLayerEnumerator);
}
/// <summary>
/// Gets an enumerator for iterating over the GoObjects in this layer.
/// </summary>
public GoLayerEnumerator GetEnumerator()
{
GoLayerEnumerator result = this;
result.Reset();
return(result);
}
IEnumerator IEnumerable.GetEnumerator()
{
GoLayerEnumerator goLayerEnumerator = this;
goLayerEnumerator.Reset();
return(goLayerEnumerator);
}
internal GoLayerCollectionObjectEnumerator(List <GoLayer> a, bool forward)
{
myArray = a;
myForward = forward;
myIndex = -1;
myEnumerator = GoLayerEnumerator.Empty;
myEnumeratorValid = false;
Reset();
}
/// <summary>
/// Advance the enumerator to the next GoObject in the whole collection of layers of GoObjects.
/// </summary>
/// <returns>True if there is a next GoObject; false if it has finished iterating over the collection.</returns>
public bool MoveNext()
{
if (myEnumeratorValid)
{
if (myEnumerator.MoveNext())
{
return(true);
}
myEnumeratorValid = false;
}
checked
{
if (myForward)
{
while (myIndex + 1 < myArray.Count)
{
myIndex++;
GoLayer goLayer = myArray[myIndex];
myEnumerator = goLayer.GetEnumerator();
myEnumeratorValid = true;
if (myEnumerator.MoveNext())
{
return(true);
}
}
return(false);
}
while (myIndex - 1 >= 0)
{
myIndex--;
GoLayer goLayer2 = myArray[myIndex];
myEnumerator = goLayer2.Backwards;
myEnumeratorValid = true;
if (myEnumerator.MoveNext())
{
return(true);
}
}
return(false);
}
}
