Get started with jsnes CDN

// Include the JSNES library
const NES = require('https://cdn.cdnhub.io/jsnes/1.2.1/jsnes.min.js');

// Create a new NES instance
const nes = new NES();

// Load a ROM file (replace 'path/to/your/rom.nes' with the actual path)
const romData = Uint8Array.from(fetch('path/to/your/rom.nes').then(res => res.arrayBuffer()));
nes.load(romData);

// Set up input handling (you can customize this according to your needs)
const input = {
  A: false,
  B: false,
  Select: false,
  Start: false,
  Up: false,
  Down: false,
  Left: false,
  Right: false
};

nes.on('input', (frame) => {
  for (const key in input) {
    if (nes.pad.buttons[key]) {
      input[key] = true;
    } else {
      input[key] = false;
    }
  }
});

// Emulate the game with the provided input
nes.emulate(frame => {
  // Update game state based on emulated frame
  // For example, you can update the game state of a canvas game

  // Update input for the next frame
  nes.input.update(input);
});