Controller scripts need to be able to cross-communicate

[Sean M. Pappalardo]

Adding this as a wish list item so I/we don't forget...

We need to implement a way for controller scripts to communicate across device instances so that operating controls on one device can have some effect on another when ControlChanged signals aren't involved. (E.g. pressing Deck Swap on one unit would change the currently controlled deck on all units.) So they would pretty much just need to be able to call arbitrary functions in other instances (but the names may be the same since one could conceivably have multiple SCS.3ds attached that all use the same script code, but each has its own ControllerEngine instance.)

[Sean M. Pappalardo (pegasus-renegadetech)]

With the current state of the Controller subsystem, I don't think it would be terribly difficult to implement this. We already have unique IDs for each controller, so this should just be a matter of adding methods to ControllerEngine and ControllerEnumerator that allow the CEngine to obtain a pointer to another CEngine instance from the CEnumerator which it could then interact with directly.

[Ferran Pujol (ferranpujol)]

We could allow many-to-many relations between devices and mappings. So many devices can be routed to the same scripts and many scripts could receive events from the same device.

[Be (be.ing)]

That would be a one-to-many relationship (one script, many devices).

[Swiftb0y (swiftb0y)]

Mixxx now uses GitHub for bug tracking. This bug has been migrated to:
https://github.com/mixxxdj/mixxx/issues/5165