How can I store a reference to the device I am subscribing to?

Development Programming & Scripting
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2

You’ll have to capture the device instance yourself when subscribing to the event. Here is one way you can do that using the concurrency primitives

OnBegin()<suspends>:void =
    for (Device : MyColorChangingTileDevices):
         # Spawn a new task for each device. Internally this function is going to suspend until the ActivatedEvent happens.
         spawn { WaitForActivation(Device) }

WaitForActivation(Device:color_changing_tiles_device)<suspends>:void =
    # Suspend this call 
    Device.ActivatedEvent.Await()
    # Logic that happens when the ActivatedEvent runs
    # You still have the device instance in this function, which you can use to run your magic numbers
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