The BananaBread Engine

A port of the Cube 2/Sauerbraten 3D game engine/first person shooter to the web, compiling C++ and OpenGL to JavaScript and WebGL using Emscripten.

Demos

FPS-type games: http://dl.dropbox.com/u/80664946/index.html

Non-game example: http://www.syntensity.com/static/night14/fireworks.html

Screenshots: http://mozakai.blogspot.com/2012/06/bananabread-02-levels.html

Overview

Cube 2 is a compact and efficient 3D game engine. By compiling it to JavaScript and WebGL you can run a complete first person shooter in your web browser, using only standard web APIs and without any plugins.

Features:

A multitude of visual effects including water reflection/refraction, parallax mapping, glare, particle effects, lightmaps, skeletal animation (on gpu), etc. etc.
Streamlined and quick physics system
Ragdoll physics
Bot AI with adjustable skill level
Integrated in-game editor
Fast performance both running on the web or natively
zlib license

The original engine also has a lot of other features not yet enabled (but will be):

Multiplayer
Multiplayer editing
Shadowmapping

Building

Get emscripten and its dependencies,

http://emscripten.org/

It's recommended to go through the emscripten tutorial to see that it is set up properly.

You will also need crunch if you want smaller downloads,

http://code.google.com/p/crunch/

Build in crnlib using the Makefile (if it isn't in the release yet, see the issue filed on their site where we submitted it, http://code.google.com/p/crunch/issues/detail?id=1 ). You can disable crunch if you don't want it, remove all mentions of crunch in cube2/src/web/Makefile.

Then do make in cube2/src/web for a web build. You can also do make in cube2/src/native for a native linux build.

If you have any problems building, feel free to file an issue here or to find us on emscripten IRC (see emscripten site).

See needed.txt for some possibly useful scripts to package the output.

Running

Run python -m SimpleHTTPServer 8888 in cube2/
Load localhost:8888 in your browser

Debugging

If you append ,debug to the URL of one of the levels, it will use bb.debug.js instead of bb.js. The debug build has not been run through closure compiler and is much more readable for stack traces and profiling and so forth.

License

Code is zlib licensed (just like Sauerbraten):

This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software.

Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions:

The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
This notice may not be removed or altered from any source distribution.

BananaBread authors:

Alon Zakai
Gregor Koch
Bobby Richter

New art content created for this project specifically is all CC-BY,

http://creativecommons.org/licenses/by/3.0/

If there isn't a specific license file alongside some content, then this is the license, so you can use that content freely.

Pre-existing content is mostly CC-BY or CC-BY-SA, see license files in specific directories. An exception is the character model, its license is sadly more restrictive (for now - we hope to fix that), see details in

packages/models/snoutx10k/

packages/models/hudguns/

secretrobotron/BananaBread