Allow to select multiple remote nodes at runtime

[YeldhamDev]

Closes #93628.

Screencast_20241125_111648.webm

Features Implemented

• Multi selection of multiple nodes, even if from different types. The properties shown in the inspector will be the ones shared by all the ones selected, like how MultiNodeEdit works.
• Region selection for Node2D/Control and Node3D nodes.
• Additive selection: holding Shift will add/remove items to the selection group instead of overriding it.

Sponsored By: 🐺 Lone Wolf Technology / 🍀 W4 Games.

[YeldhamDev]

I want some feedback on how to handle limiting selection of too many nodes, because that carries the risk of encoding of the data failing and no selection occurring.

• What the default limit should be? 10-ish or so?
• Should it be a hard limit, not allowing to select further nodes? Or a soft one, only printing a warning when the limit is exceeded?

[KoBeWi]

Maybe hard limit with warning?
How many nodes can be selected before it breaks?

[YeldhamDev]

@KoBeWi Missed your message, sorry.

It depends on the data size of the objects. On my end for example, selecting more than 30 Button nodes starts to break things.

[KoBeWi]

So limit it to 20-25, if someone tries to select more nodes pop a warning toaster. The limit can be configurable in editor settings. Personally I rarely select more than 5 nodes; most often it's to move them in the scene, which is not something you can do in Remote tree.

[YeldhamDev]

The selection limit has been implemented.

[YeldhamDev]

@KoBeWi Alright, try again.

[KoBeWi]

You could instead replace it with editor layout. It's global for editor.
The project metadata are per-project, not very useful for Game tab.

[YeldhamDev]

I would actually disagree. Different projects sometimes require different workflows, so making those be kept in a per-project basis makes sense.

[Calinou]

Tested locally, it works as expected. It works in mixed 2D-3D scenarios too:

select_multi.mp4

PS: The orange selection gizmos in 3D still seem to receive shadows (unlike in the editor where they render as expected). I thought this was fixed at some point.

[YeldhamDev]

@Calinou The rendering of those use the same flags as the ones in the editor, so I dunno what could be causing it.

[YeldhamDev]

Alright, EditorDebuggerRemoteObject and EditorDebuggerMultiRemoteObject have been merged into EditorDebuggerRemoteObjects which handles both single and multi selections.