Oxygengine

The hottest HTML5 + WASM game engine for games written in Rust with web-sys.

Table of contents

1. Understanding ECS
2. Installation
3. Teaser
4. Project Setup
5. Building for development and production
6. Roadmap

Understanding ECS

Oxygengine is highly based on specs crate used for its ECS framework. You can get understanding of it by reading specs book and tutorials here: https://specs.amethyst.rs/docs/tutorials/

Installation

Make sure that you have latest oxygengine-ignite binary installed (cargo install oxygengine-ignite) - this binary is a set of vital tools that will govern managing most of your project.

Teaser

Project Setup

Create Oxygen Engine project with oxygengine-ignite: bash cd /path/to/parent/ oxygengine-ignite new <project-name> Which will create default web game project using web-composite-game preset. You can create projects with different presets: - desktop-headless-game - typical server-like project without graphics.

using: bash cd /path/to/parent/ oxygengine-ignite new <project-name> -p desktop-headless-game You can also tell it where to create project: bash oxygengine-ignite new <project-name> -d /path/to/parent/

Updating to new engine version:

• reinstall oxygengine-ignite: bash cargo install oxygengine-ignite --forced OXY_UPDATE_PRESETS=1 oxygengine-ignite --help
• update oxygengine version either in Cargo.toml or by calling: cargo update
• upgrading from versions before 0.12.0 requires to create new project with latest ignite tool, then copy by hand your source files to the new project sources, as well as put assets from old project /static/assets directory into new project /assets directory, preferably using new way of assets directory structure (so you won't have to modify pipeline.json file a lot).

Speeding up compilation for new projects (best use case for gamejams and quick feature prototypes):

• install SCCACHE, a tool for caching and sharing prebuilt dependencies between multiple game projects (https://github.com/mozilla/sccache): bash cargo install sccache
• add these lines to the Cargo.toml: toml [package.metadata] # path to the sccache binary sccache_bin = "sccache.exe" # path to the sccache cache directory sccache_dir = "D:\\sccache"

From now on you will have to wait for full long engine build only once, for any other new game project you create, it will perform first compilation in matter of minute, not 20.

Building for development and production

• Launch live development with active code recompilation and assets baking in the background on change: bash oxygengine-ignite live additionally to allow it to start http server to serve your build files in the browser, run: bash oxygengine-ignite live -- -p 8080 files will be served from: http://localhost:8080.

• Build binaries in debug or release mode (binaries will be put in /bin folder):

  with debug symbols: bash oxygengine-ignite build optimized release mode: bash oxygengine-ignite build -p release

• Build only the crate: bash cargo build

• Package application build with assets ready for distribution (package files will be put in /dist folder): bash oxygengine-ignite package this command will run release build, assets pipeline and bundle package.

  To produce a debug mode package you have to run: bash oxygengine-ignite package -d

Roadmap

Current milestone progress: https://github.com/PsichiX/Oxygengine/projects/1