adventuring / tootsville.org

Tootsville online MMORPG — game software

Home Page:https://www.tootsville.org/development/

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tootsville.org

Tootsville Ⅴ Game

This package contains the working copy of the Tootsville V game, as it is being built / merged-into

Coding Style

Note a couple of things here.

Idempotent script loading.

Scripts should be able to be reloaded on the fly idempotently; in particular, we want to never define something like

Tootsville.Namespace = { a: function () {…}, b: … }

… because that might destroy e.g. Tootsville.Namespace.c that was created by someone else, but instead, we build namespaces safely so:

if (!(‘Namespace’ in Tootsville)) { Tootsville.Namespace = {}; }; Tootsville.Namespace.a = function () {…}; Tootsville.Namespace.b = function () {…};

This is a little different than typical JavaScript style, but keep in mind that we sometimes push new JavaScripts out to running clients on the fly during the game.

Late binding event handlers

Wherever possible, we prefer:

object.onevent = (event) => { Tootsville.handler (event); };

over:

object.onevent = Tootsville.handler;

This is so that Tootsville.handler (eg) can be redefined later and the lambda function will call the new definition, but in the non-preferred style, the handler is bound at compile-time and cannot be altered without reassigning it.

Many small functions

We prefer many small functions over one large one. Wherever practical, each branch of an “if” or body of a “for” should probably be a distinct function call. A small caveat is given for simply logging and then calling another function. This is definitely something we have not so far lived up to, but the ideal is to reduce the cyclomatic complexity of each function as far as possible.

External Components

The game system is essentially made up of 8 pillars, or main components. Three of these are completely external:

The Wiki-wiki

The Wiki-wiki is a Mediawiki installation and is used as an external source of documentation both within the game, and externally. The contents of the Wiki-wiki are not maintained in this repository.

Jumbo

The static game content, and larger or shared web content, are hosted on Jumbo, and are not maintained in this repo, either.

Tootsbook

Tootsbook is a Wordpress installation, and is likewise completely external.

Internal Components

Within this repository are the main, “internal” components.

Play

The Play application is the “in-game” Javascript application that presents the 3D world and Heads-Up Display (HUD) overlays.

The front-end components are, at least partially, in Javascript.

Login

The Login application manages user sign-up, character selection, and the like from the front-end. It interacts mostly with the Users service.

Toot Management

Pick a character

Babylon.js integration

Input handling

  • keyboard/mouse/GUI
  • Firefox gamepad support?
  • Bluetooth gamepads?

Sound synth

Peer-to-peer Gossip Network

Asset fetch/share

Worker thread

Servers

Load Balancer

Users

The Users application is a REST server providing human and Toot user information, and is used to log in, and identify player (Toot) inventory.

Log in

Autovivifies a new user profile when a Google auth token is received.

If the email address is on file, there can be an account that exists without a known auth token. This is how we’re implementing two features:

Sending welcome gifts to new users before they first sign up
Pre-registering Toot names for certain specific users
Create new Toot

Gossip

The Gossip application is a directory service used to initiate the Gossipnet connections between players (by Play).

World

The World application quiesces and burgeons areas of the game world and provides conflict resolution of user action lists.

Operations

Deployment is spelled out in the Makefile. In general, the front-end Javascript applications are compiled down, compressed, and sent off to their respective (“dumb,” static) servers.

The back-end application systems each run a respective copy of the monolithic Tootsville executable. This is a single executable compiled from the same Common Lisp sources on each host (to ensure CPU-OS-Compiler-Library match-ups, allow compile-time optimizations for the host configuration, and avoid surprises).

About

Tootsville online MMORPG — game software

https://www.tootsville.org/development/

License:GNU Affero General Public License v3.0


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