String_fighter_AI

This project is folked from linyi's street-fighter-ai project. (https://github.com/linyiLYi/street-fighter-ai). Please refer the folked project's README for the environment setup.

My project has added the following features:

• Added a feature for human to play with the AI.

Play with the AI

Setup

Find out the gym-retro game folder

python .\utils\print_game_lib_folder.py

Copy Champion.Level12.RyuVsBison.2Player.state, Champion.Level12.RyuVsBison.state, data.json, metadata.json, and scenario.json files from the data/ folder file to gym-retro game folder.

Play

cd main
python play_with_ai.py

Key Mapping

• Move - 'A', 'W', 'S', 'D'
• Arm - 'U', 'I', 'O'
• Leg - 'J', 'K', 'L'

You can change the key mapping in keys_to_act() in interactive.py

Trouble Shotting

You may see the following error

Traceback (most recent call last):
  File "play_with_ai.py", line 41, in <module>
    model = PPO.load(os.path.join(MODEL_DIR, MODEL_NAME), env=env)
  File "/home/tony/AI/String_fighter_AI/venv/lib/python3.8/site-packages/stable_baselines3/common/base_class.py", line 684, in load
    check_for_correct_spaces(env, data["observation_space"], data["action_space"])
  File "/home/tony/AI/String_fighter_AI/venv/lib/python3.8/site-packages/stable_baselines3/common/utils.py", line 230, in check_for_correct_spaces
    raise ValueError(f"Action spaces do not match: {action_space} != {env.action_space}")
ValueError: Action spaces do not match: MultiBinary(12) != MultiBinary(24)
free(): invalid pointer
Aborted (core dumped)

This is because linyi's AI was trained with 1 player mode, so the AI expects 1 player action input. To work around the issue, just simplely comment out the action spaces validation in site-packages/stable_baselines3/common/utils.py (line 230).