javelin

Javelin is a suite of packages used to build multiplayer games for the web.

The primary goals of Javelin are speed, minimalism, and ease-of-use. A secondary goal is to provide examples of client-side prediction, input reconciliation, and other algorithms commonly used in fast-paced online games.

This library is comprised of an Entity-Component System (ECS) and an associated networking package used to synchronize game data between a client and server (or other clients).

Docs

Visit https://javelin.games

Packages

Package	Description
@javelin/ecs	Build games using the ECS pattern
@javelin/net	Synchronize `@javelin/ecs` instances
@javelin/devtool	Inspect and manipulate remote and local `@javelin/ecs` instances
@javelin/hrtime-loop	Create a smooth, high-resolution game loop in NodeJS

Examples

Example	Description
networking	Entity/component synchronization over WebRTC datachannels

Scripts

Script	Description
`yarn build`	Build all packages and examples
`yarn test`	Run all unit and integration tests
`yarn perf`	Run all performance tests
`yarn example:basic`	Preview basic ECS capabilities
`yarn example:networking`	An example of synchronizing entities over WebRTC

Development

yarn --ignore-engines
yarn build
yarn example:networking