aviate-labs / dots

@dscvr-one Hackathon S2 Entry

DOTS ...

This is a project build for DSCVR's 2nd Hackathon, build in less than 1 day. So there are probably some bugs here and there...

I (currently) do not plan to actively contribute to this project. But feel free to open PRs and add new features, I am happy to review and maintain it.

Metascore

DOTS participated in the initial launch of Metascore (22-25 Sept 2021), the scores of this period can be found in the dump directory.

Since the score mechanism is not on point, and not safe against cheaters, it will not participate in other Metascore championships. A more in detailed explanation below.

Proof of Work

A first problem I stumbled upon was: 'How to send score to the backend canister, tamperproof?'. There are various ways of doing this. I needed a quick and easy solution, since this was a hackathon project.

So, I decided to not open-source the code immediately to make it at least a little harder to cheat. Which worked.

How can we validate if the user did send a fake highscore?

1. Generate the food location in the backend canister.
2. Add some hash that only the backend can create/validate.
3. Done.

Not quite... Since the user can still just query a series of food coordinates, lets say a 1000. And then send the these as their new score to the backend.

Because of this is now public information, the game will not participate in upcoming Metascore championships.

If you have an easy was to make it tamperproof, feel free to open a PR to add this to the game!

Usage

Deploying Backend Canister

dfx deploy --network=ic dots --argument {entropy}

Create a Score Dump

dfx canister --network=ic call dots metascoreScores >> dump/10:25.09.2021.scores