private void RenderFeatures_CollectionChanged(object sender, ref FastTrackingCollectionChangedEventArgs e)
{
switch (e.Action)
{
case NotifyCollectionChangedAction.Add:
for (int index = 0; index < renderObjectsWithoutFeatures.Count; index++)
{
var renderObject = renderObjectsWithoutFeatures[index];
// Try to reprocess object that didn't have any stage before
if (renderObject.RenderFeature == null)
{
RenderSystem.AddRenderObject(renderObject);
if (renderObject.RenderFeature != null)
{
renderObjectsWithoutFeatures.SwapRemoveAt(index--);
ReevaluateActiveRenderStages(renderObject);
}
}
}
break;
case NotifyCollectionChangedAction.Remove:
foreach (var renderObject in RenderObjects)
{
if (renderObject.RenderFeature == e.Item)
{
RenderSystem.RemoveRenderObject(renderObject);
renderObjectsWithoutFeatures.Add(renderObject);
}
}
break;
}
}
internal bool RemoveRenderObject(List <RenderObject> renderObjects, RenderObject renderObject)
{
if (renderObject.RenderFeature == null)
{
renderObjectsWithoutFeatures.Remove(renderObject);
}
RenderSystem.RemoveRenderObject(renderObject);
// Get and clear ordered node index
var orderedRenderNodeIndex = renderObject.VisibilityObjectNode.Index;
if (renderObject.VisibilityObjectNode == StaticObjectNodeReference.Invalid)
{
return(false);
}
renderObject.VisibilityObjectNode = StaticObjectNodeReference.Invalid;
// SwapRemove each items in dataArrays
RenderData.SwapRemoveItem(DataType.StaticObject, orderedRenderNodeIndex, renderObjects.Count - 1);
// Remove entry from ordered node index
renderObjects.SwapRemoveAt(orderedRenderNodeIndex);
// If last item was moved, update its index
if (orderedRenderNodeIndex < renderObjects.Count)
{
renderObjects[orderedRenderNodeIndex].VisibilityObjectNode = new StaticObjectNodeReference(orderedRenderNodeIndex);
}
return(true);
}