aica-gamelib

AICA Game Library

This package contains the core game logic and interfaces for the Game AI Competition Platform of the AI Club Aachen. It is designed to be easy to use. Simply instantiate the Agent class and begin!

Installation

You can install the package via pip:

pip install aica-gamelib

Creating an Agent

To create a game AI agent, you need to create a class that inherits from gamelib.GAME.agent.Agent. GAME is replaced by the relevant game such as tictactoe. You must implement two methods:

1. initialize(self, agent_init_data): Setup your agent (e.g., store your player ID).
2. get_move(self, game_state): Analyze the game state and return a Move object.

Game Concepts

GameState

The GameState object passed to get_move is defined in gamelib.GAME.gamestate.

Move

The Move object returned by get_move is defined in gamelib.GAME.move.

Example in TicTacToe

Here is a simple example of a tictactoe agent that selects the first available cell on the board.

from typing import override

from gamelib.tictactoe import Agent, GameState, Move

class MyTicTacToeAgent(Agent):
    @override
    def initialize(self, agent_init_data: dict) -> None:
        """
        Called once at the start of the game.
        agent_init_data contains 'player_id' (0 or 1).
        """
        self.player_id = agent_init_data["player_id"]

    @override
    def get_move(self, game_state: GameState) -> Move:
        """
        Called every turn. Returns the move you want to make.
        """
        # The board is a flat list of 9 integers
        # -1: Empty, 0: Player 0, 1: Player 1
        for position in range(9):
            if game_state.board[position] == -1:
                return Move(player=self.player_id, position=position)
        
        raise ValueError("No valid moves available.")

if __name__ == "__main__":
    # The only entry point you need - works both on the platform and locally.
    MyTicTacToeAgent().start()

You can import this example agent right away with:

from gamelib.tictactoe.examples import TicTacToeAgent

Running Your Agent

Your agent talks to the game engine over standard input/output (stdin/stdout). This is handled for you by Agent.start() as long as your class subclasses gamelib.GAME.agent.Agent. The only thing your file needs is a one-line entry point:

if __name__ == "__main__":
    MyTicTacToeAgent().start()

Playing Locally (gamelib-play)

The package ships a gamelib-play command to run a match in your terminal - no backend required:

gamelib-play <game> <player0> <player1>

<game> is tictactoe etc. Each player is either human or a path to a Python file defining an Agent subclass (use file.py:ClassName to pick one).

gamelib-play tictactoe human my_agent.py   # you vs your agent (you go first)
gamelib-play tictactoe my_agent.py human   # you vs your agent (agent goes first)
gamelib-play hex agent_a.py agent_b.py     # watch two agents play (A goes first)
gamelib-play tictactoe human human         # hot-seat