Rock-Paper-Scissors Smart Contract

This smart contract implements a secure Rock-Paper-Scissors game using Reach and is ready to be deployed on the main network.

A decentralized application (dapp) is an application built on a decentralized network that combines a smart contract and a frontend user interface.
Smart contracts are digital contracts stored on a blockchain that is automatically executed when predetermined terms and conditions are met

Specification

Alice and Bob play the classic rock paper scissors game.
Alice will first propose a wager of certain amount before the game starts.
If bob will accept the wager then Alice will turn their first move.
On Bob's turn, if he doesn't play in a certain period then the game will terminate and both will get back their wager back.
In bob's turn Alice's hand is unknown to bob.
After bob will turn their move, the result will be calculated and the winner will get the total wager amount.
If after bob's turn Alice won't reveal her hand then she will lose(because she has access to bob's hand, so she should play).
In a draw situation, the wager will be the same and Alice will start the game with her move first.

Features

Simple CLI game.
Implemented Bets and Wagers.
Preventing Hacks through Automatic Verifications.
Adding Timeouts and Requiring Participation to Enforce Payout
Adding User Interaction and a User Interface in my DApp.
Only works on test-net for now.

Demo

Here I have created 2 instances of player, in the left terminal left is playing and the right one is for Bob.

Tech Stacks

Reach
Algorand

Installation

First, you need to create a proper working environment to run this project. For that, you can find a reference here. And then for installation follow the guidelines given here. After the complete setup, you can follow the steps given below.

Clone the project

  git clone https://github.com/Pranav108/smart-rock-paper-scissors

Move to the project folder

  cd smart-rock-paper-scissors

Run the program

./reach run

ToDo

Reduce Alice's cost to Run and play the game, because she is responsible for more moves than bob.
Make it more efficient by optimizing the number of communications.

Authors

@Pranav108