creating new learning environments.md

Creating and adding a new environment to MACAD-Gym is easy.

Among other ways, the easiest way is to create a new environment is to simply copy and replicate an existing environment and change what you want and give it a new name. For example, to create a variation of this UrbanSignalIntersection3Car environment with continuous actions, you can copy this file, rename it (e.g.: urban_signal_intersection_3c_continuous.py) and edit the following line:

and set "discrete_actions": False. That's it!

You can give this environment a new name (e.g.: UrbanSignalIntersection3CarContinuous) by registering this new environment with it's name like the existing discrete environment shown below:

The last step is to add it to the list of available environments here:

You can then just use: gym.make("UrbanSignalIntersection3CarContinuous-v0") in your code!