Python implementation of Battleship, a strategy type guessing game for two players played on ruled grids on which each player's fleet of ships are marked.

• Python 3.8
• FastAPI 0.68.1
• SQLAlchemy 1.4.27

In order to setup Python virtual environment:

# Set up a new virtual environment.
python3 -m venv myenv
# Activate the virtual environment
source "myenv/bin/activate"

Install all dependencies:

pip install --upgrade -r requirements.txt

To deactivate the virtual environment:

# Deactivate virtual environment
deactivate
# Delete virtual environment
rm -rf myenv

Project is run by command, which in turn runs uvicorn application:

python3 main.py

You need to see the log if everything goes smoothly:

INFO:     Started server process
INFO:     Waiting for application startup.
INFO:     Application startup complete.
INFO:     Uvicorn running on http://0.0.0.0:8000 (Press CTRL+C to quit)

• Pydantic

Every incoming request and outgoing response go through directly pydantic objects (including websocket ones).

• JWT Token System

When a user logs in, a JWT token is created for that user with the following metadata:

{
  "id": user.id,
  "username": user.username,
  "exp": datetime.utcnow() + timedelta(minutes=settings.token_expire_min),
}

• Type: Ready
  • Check whether server sends the boards after each user sends ready
• Type: Turn
  • Check if server sends turn object to both sides
• Game ending
  • Check board after hit
• Send game end result
  • If board is finished after hit, send game end result to users
• Release game related objects after game is over
  • websockets, boards in active games
• AI
  • Simplistic AI for playing the game