Unexpected Behavior with `out_of_route_done=False` in MetaDrive Simulator

[ensan-hcl]

Description

Currently, in the MetaDrive simulator, specifying out_of_route_done=False in the configuration should theoretically prevent the simulation from ending when the vehicle deviates from the route. However, the simulation terminates as soon as vehicle.on_lane becomes False, based on the implementation.

Questions

Intended Behavior Clarification: Is it intended that the simulation ends when vehicle.on_lane becomes False, even when out_of_route_done=False is specified in the configuration?

Improvement Suggestions:

Is it possible to modify the behavior so that the simulation does not end when vehicle.on_lane becomes False, even when out_of_route_done=False? This will be possible by just moving the vehicle.on_lane checks inside if. Alternatively, could a new configuration parameter, such as out_of_lane_done, be introduced to control the termination of the simulation when the vehicle deviates from the lane?

Additional Information

MetaDrive version: 0.4.2.3

[QuanyiLi]

Hi,

Sorry for the late reply.

Yes, it is expected. To achieve your goal, you can make a new sub-environment with the done_function overridden. So you can have any termination conditions according to your needs. We are not able to support this officially as different user has different requests. It is better to make it highly customizable.

[ensan-hcl]

I understood. It sounds very reasonable. Thank you for your response!