Mystery ghost untitled entity under scrollview content group

Calvin2274 · February 10, 2023, 2:21am

I was making a layout size fitter script for auto size the content entity under a scrollview according to number of content’s children and their size.

a funny situation happened to me , in editor the content only have 3 Group entity , but somehow entity.children.length return 4 and one of them doesn’t have element and caused undefined error.

I tried to log them our and got a ghost untitled entity

Screenshot 2023-02-10 at 10.10.10

Screenshot 2023-02-10 at 10.09.52

how can i remove that ghost thing ?

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Even i’ve tried delete the whole Content entity and recreate another one, the ghost thing still here. looks like it created by Scrollview component ?

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oh! it suddenly just gone for some reason

GHOST~~~~~

yaustar · February 10, 2023, 10:08am

May be related to this ticket:

github.com/playcanvas/engine

Engine generated graph nodes in entities (eg elements) causing issues with children length

opened 12:48PM - 16 Jun 22 UTC

yaustar

feature request

Related to: https://github.com/playcanvas/engine/issues/1660 A user had an is…sue where some logic was dependent on the number of children that an element entity had. Because a graph node is created by the engine for the mesh, the count was always off by one and took some time to work out that there was an extra graphnode that's not shown in the Editor but was created at runtime. The proposal here is that we have a new API that only has the children that are entities unless anyone has other ideas to tackle this.