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Risk Game Engine

This repository contains the game engine for SYNCS Bot Battle 2024. This year, we're playing Risk: Global Domination.

Repository Structure

example_submissions This folder contains examples that you can use to help design your own bot.

risk-shared The risk-shared package contains python code and classes that are used in both the risk-engine and risk-helper packages.

risk-engine The risk-engine package contains the game engine which is used to run matches and determine the winner of a match by simulating the game.

risk-helper The risk-helper package contains a helper library you can use to greatly simplify interactions with the game engine.

Guide

This guide will explain how to create your own submission and run simulations on your own computer, this guide is designed for Linux, WSL2, or MacOS.

  1. Run chmod u+x setup_env.sh, this will give execute permissions to the script so that you can run it.
  2. Run ./setup_env.sh, this will install the risk-engine, risk-shared and risk-helper packages.
  3. Make a copy of an example submission such as example_submissions/simple.py and place it somewhere you want (we will assume you have placed it at ./my_submission.py). Make any modifications to this file that you want to design your bot.
  4. To simulate a match, use the match_simulator.py script. For example we could run python3 match_simulator.py --submissions 4:example_submissions/simple.py 1:my_submission.py --engine to simulate a match between our submission and four of the simple example submissions.

Now you can simulate matches on your own device. We will briefly explain the new folders that are created when you run the match_simulator.py script. The folders submission0 to submission4 contain the code for each player in the simulated game, as well as two special files (FIFO pipes) that are used to communicate to and from the engine (these are to_engine.pipe and from_engine.pipe). The input folder contains catalog.json. The output folder contains the results of the game, results.json describes who won if the game was successful, otherwise it may describe who was banned or why the match was cancelled. The game.json file contains the game recording, which is the same data displayed on the website in the match history page. The visualiser_backwards_differential.json and visualiser_forwards_differential.json are used to generate the map visualisation on the website. The submission_x.err and submission_x.log are the STDERR and STDOUT of each submission respectively.