javascript nes emulator

readme.md

This will be used to train an ai to play nes games (first things first: get it to run).

index.js

require('text-encoding');
const fs = require("fs");
const {NES} = require("jsnes");
const sinon = require("sinon");


const SCREEN_WIDTH = 256;
const SCREEN_HEIGHT = 240;


var Canvas = require('canvas')
  , Image = Canvas.Image
  , canvas = new Canvas(200, 200)
  , ctx = canvas.getContext('2d');

canvas.width = SCREEN_WIDTH;
canvas.height = SCREEN_HEIGHT;

// create imageData object
var idata = ctx.createImageData(SCREEN_WIDTH, SCREEN_HEIGHT);





var onFrame = sinon.spy();
var nes = new NES({ 
    onFrame: function(frameBuffer){
                // set our buffer as source
        idata.data.set(new Uint8ClampedArray(frameBuffer));

        // update canvas with new data
        ctx.putImageData(idata, 0, 0);
        console.log(canvas.toDataURL());
    },
    onStatusUpdate: console.log
});

fs.readFile(require.resolve( "jsnes/roms/croom/croom.nes" ), {encoding: 'binary'}, function(err, data) {
      if (err) return done(err);
      nes.loadROM(data);
      
      setInterval(() => {
        nes.frame();
        console.log(nes.getFPS());
      }, 1000 / 60);
      
});