Is there a way I can adjust the number of hazards in Goal1 environment?

[PiyabhumC]

Hello,
I would like to adjust the amount of hazards appear in the environment Goal1. Ideally I would like to gradually increase the number of hazards as the training progress (increasing difficulties). Is there a way to config this?
Thank you very much.

[muchvo]

There are two methods:

1. You can dynamically modify the num attribute of hazards in the Goal1 task instance within the code, and then call the reset method. Refer to this line of code.
   Example code:

   env = safety_gymnasium.make(env_name, render_mode='human')
   obs, info = env.reset()  # pylint: disable=unused-variable
   env.hazards.num = 100  # Note: Too many hazards may cause issues with environment instantiation, requiring an adjustment to the space size.
   obs, info = env.reset()  # pylint: disable=unused-variable

2. Alternatively, you can re-instantiate an environment using a config approach. Refer to this issue for more details.

[PiyabhumC]

Thanks. I can manipulate the hazards.num within the goal_level1.py however when I modify it as the example with env.hazards.num it returns AttributeError: 'Builder' object has no attribute 'hazards'.
Is there any outer attribute I have to pass through as well?

[muchvo]

Apologies, the first method is currently not supported. Please use the second method instead.