A simple "Web Graphics" interface to use for golang programs. A browser/HTML5 canvas is used to display a stream of frames generated by a go backend, user input is sent back. The index.html is hosted with the built in web server, from there a bi-directional websocket is started. From go backend to browser is each frame passed as base64 encoded jpeg and immediately drawn. From browser to go are mouse and key events passed for the backend code to react on.
Use as a base for a go game or something else with real time graphics and user interaction.
go get github.com/magsoft-se/wg
For an example, go run main.go and point a browser to localhost.
You should see a blue square controllable with the arrow keys, and be able to draw a dotted line with the mouse. (you may have to focus click the graphics area)
wg.Start(WIDTH, HEIGHT, PORT, GameLoop)
See more in example/main.go
Please consider that this is one of my first golang applications, so there are probably better ways of doing things. Also this is pretty cpu intensive and of course far from optimal if compared to more direct/native graphics. In any case I think this will provide an easy to use, cross platform, graphics interface that I myself missed when I started with go.