ExMmog - A Massive Multiplayer Online Game

Context

The game is played on a 2D grid. The player is looking from the top down. Each field in the grid can be either a wall or a walkable/empty tile.

The player controls a hero, which is rendered on the grid. The hero can move freely on the empty tiles, but not on the wall tiles. When other players connect to the game, your enemies, they are also rendered on the grid. Your hero should always be distinguishable from the enemies.

While moving, if an enemy is already on a tile, your hero can still move to that tile. Your hero should be rendered above the enemies so that your hero is always visible. When your hero or an enemy is dead, it should be distinguishable from others.

Game mechanics

Browser based game, visit: http://localhost:4000/game to get started. Your hero will be assigned a random name. If you need your hero to be named, pass the name http://localhost:4000/game?name=manu
If a player connects to the game with a name that already exists and is controlled by another player, both players control the same hero.
Your hero can move freely over all empty/walkable tiles. They can also walk on tiles where enemies are already standing.
Each hero can attack everyone else within the radius of 1 tile around him in all directions + the tile they are standing on.
If there are multiple enemies in range, all of them are attacked at the same time. One hit is enough to kill the enemy.
If an enemy attacks you, your hero dies. When your hero is dead, it cannot perform any actions
Every 5 seconds all dead heroes are removed (and randomly re-spawned if the player is still playing the game)

TODO

UI/UX improvements. tidy up and style the board.
Highlight your hero.
Animations when your here is attacked.

Get started

Prerequisites

Assuming you have asdf installed.

asdf install elixir 1.10.0
asdf local elixir 1.10.0

asdf install erlang 22.2.6
asdf local erlang 22.2.6

asdf install nodejs 12.14.0
asdf local nodejs 12.14.0

With nix

nix-shell --pure

# Install dependencies
mdg

# start server
mps

# run tests
test

Install dependencies with mix deps.get
Install Node.js dependencies with cd assets && npm install
Start Phoenix endpoint with mix phx.server

Now you can visit localhost:4000 from your browser.

Deployment.

Deployments are handled using elixir releases, and app is deployed to Gigalixir.

To view the app, visit the link

manusajith/ex_mmog