Inconsistency with shared reward args name

[KaleabTessera]

In some places the shared reward param is called share_reward (e.g.

VectorizedMultiAgentSimulator/vmas/scenarios/dispersion.py

Line 16 in f4f8a89

self.share_reward = kwargs.get("share_reward", False)

), while in others shared_rew (e.g.
https://github.com/proroklab/VectorizedMultiAgentSimulator/blob/f4f8a8964336a86e60bc06ae72b51a2ae0a1e4af/vmas/scenarios/multi_give_way.py#L28C39-L28C49).

Since there is no validation on the kwargs, it is easy to make a mistake with the name of this param, especially since it is not consistent. I think making all envs have the same param name would be useful.

[matteobettini]

Hey!

Yes, I feel the same way.

For backwards compatibility reasons I cannot change the names now as this would cause all sorts of issues, what I can do is adding kwargs checking so that if users pass a parameter that is not expected we raise an error (warning for now and eventually error)

What do you think?

[KaleabTessera]

Yeah sounds good. I like your implementation 👍