boleque / guess-number

Guess number game

Demo

Requirements

Game process:

1. The server starts a round of the game and gives 10 seconds to place a bet for the players on numbers from 1 to 10 with the amount of the bet;
2. After the time expires, the server generates a random number from 1 to 10;
3. If the player guesses the number, a message is sent to him that he won with a winnings of 9.9 times the stake;
4. If the player loses receives a message about the loss;
5. All players receive a message with a list of winning players in which there is a nickname and the amount of winnings;
6. The process is repeated.

Communication between players and the server via WebSocket
I didn't use STOMP

Architecture, Implementation

A simple user registration implemented, namely when a client connects, a record of the form {Player_SesionId} is created in the database.
In essence, the lifetime of an account is the lifetime of a session, but having an entry in the database allows to accumulate statistics.

Game

The service can be run locally, no additional dependencies are required. H2 is used as a database.
After the connection is established, you can take part in the game by sending a message in the following form roundId:stake:guess, for example 3:200:7