Setting Observation space at runtime

Unity Engine
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1

Hello,

I am creating a maze environment and want to create an array of visited cells which serve as an vector input for the agent. As I want to be able to modify the maze size at runtime, I need a way to change the obeservation size at runtime.
I tried something like:

GetComponent<BehaviorParameters>().BrainParameters.VectorObservationSize += maze_rows * maze_cols;

but I still get the Error that more observations have been made than the observation size.
Any ideas?

2

Currently changing observation size at run time is not supported. In your case you could probably try sending observation with a fixed size of the size of your maze and change the state of each cell in the maze representation.

If you have a specific case that requires changing the observation size during run time, you can make a feature request on ML-Agents GitHub page.

3

Thanks I will use that for now!