Making a new version of the visualizer. Still based on canvas. Used requestAnimationFrame for better animations.
Added speed control. Will add more controls for it.
This version has been stopped at this moment. The code is here https://github.com/lei-cao/programming/tree/master/code/v2.
I want to have it as mobile apps. Was looking for a easier way to build x-device versions. Thought about PhoneGap, golang webview.
Finally fond this solution Ebiten: 2D game library in Go, it supports Desktop (Windows/Mac/Linux), Mobile (iOS/Android) and GopherJS. This is a perfect fit for my requirements. Please see the details Here.