Complex spaces

[rongcuid]

I am trying to implement a RL environment for a simple racing game, but I struggle to find example that contain compound, continuous spaces. The state space of the game is a mix of continuous (think speed, position) and discrete (skill cooldown), and the action space is also a mix of continuous (throttle), discrete (skill use), and variable-sized (skill availability). None of the examples show how to actually implement it.

Do I need to use the Space type for action/state space? Can I use my own struct that implements some certain interfaces, like rand, in, etc.?

[rongcuid]

In addition, what does legal_action_space_mask mean for a continuous space? There is no example either.