the Collision Problem of Multiple Control Vehicles(mutil-agent)

[HC]

Hello, thank you for your excellent work.
When testing on multiple agents, I encountered a problem with multi-control vehicle collision detection. Regarding the collision of a single vehicle, I can check whether there is a collision from the info['crashed'] returned by env. step(), but when the action contains multiple vehicles, the info value returned is still for a single vehicle, so how can I get the collision information of other controlled vehicles? Looking forward to your reply~ @eleurent

[[e-mail]]

The definition of collision needs to be modified. In the default environment, the definition of reward and collision is only derived from the first car.

[HC]

Thank you for your reply. I have already written the code for the vehicle collision and have now closed the issue.