"Engine2D" 2D Game Engine

Auto-Generated Screenshot

What am I looking at?

Engine2D is a 2D Game Engine written in C++ with mature scripting support implemented using Chromium's V8 Javascript engine and graphics using OpenGL. Above is a screen shot of the interactive test suite testing Filesystem, Event dispatch among other core engine services.

Building

Right now the engine builds out of the box on Mac OSX, Linux and Windows. To build it for other platforms you need...

• A modern C++ compiler supporting C++11. It's built using clang right now
• Python v2.7.x (For GYP and tasks.py)
• CMake (For GLFW)
• GYP

On a source level you will need to fill in or stub out Platform_{x}.cpp.

Once you have the dependences installed you can run ./tasks.py build_env and you will hopefully find a executable has been built. You can run the built executable in devmode/debugmode (Profiler/DebugUI/Live-reloading/Verbose Console enabled) with ./tasks.py run.

Sample Code

Script located in res/script/helloWorld.js.

sys.on("draw", "helloWorld.draw", function (e) {
	draw.setColor("blue");
	draw.rect(100, 100, 100, 100);
});

Engine2D's event system allows you to create connections between scripts and C++, draw is called each frame mid way though the rendering when everything is ready.

Sample Code 2

Script located in res/script/helloWorld2.js.

/* jshint esnext: true */

var counter = 0;
var circleColor = 0x101010;

function* genGradient() {
	while (true) {
		for (var x = 0; x < 360; x++) {
			yield draw.getRGBFromHSV(x, 1.0, 0.5);
		}
	}
}
var generator = genGradient();

setInterval(function () {
	circleColor = generator.next().value;
}, 100);

sys.on("draw", "helloWorld2.draw", function () {
	draw.setColor(circleColor);
	draw.rect(Math.sin(counter) * 100 + 150,
		Math.sin(counter) * 100 + 150, 100, 100);
	counter += sys.deltaTime + (Math.random() / 16);
});

Engine2D enables all ES6 features currently supported in V8 by default including but not limited to... - Classes - Generators - Block Scopeing (let)

Documentation

The latest version of the documentation generated using JSDoc can be found under doc/apiDocs or hosted at http://vbitz.com/public/EngineAPIDocs/. Additional command line args that can be passed to the executable are documented under the -h executable flag or with the engine_help tasks.py task.

Getting Started

• Run build/Default/engine2D -devmode -debug script/helloWorld.
• If you want to edit your script then just change the file and save, the engine reloads automatically if -devmode is enabled.

Contributing

Code Contributions are welcome large and small. Issues with scripting, running or building the engine can be reported using the issue tracker to the right.

License

Engine2D is licensed under the Apache 2 License. A copy can be found in LICENCE.