This is JavaScript NES(Famicom) emulator which runs on browser.
<head>
<script type="text/javascript" src="https://cdn.rawgit.com/takahirox/nes-js/v0.0.1/build/nes.min.js"></script>
<script type="text/javascript" >
function init() {
var url = 'url to rom image';
var request = new XMLHttpRequest();
request.responseType = 'arraybuffer';
request.onload = function() {
var buffer = request.response;
var nes = new NesJs.Nes();
nes.setRom(new NesJs.Rom(buffer));
nes.setDisplay(new NesJs.Display(document.getElementById('gameCanvas')));
nes.setAudio(new NesJs.Audio());
window.onkeydown = function(e) { nes.handleKeyDown(e); };
window.onkeyup = function(e) { nes.handleKeyUp(e); };
nes.bootup();
nes.run();
};
request.open('GET', url, true);
request.send(null);
}
</script>
</head>
<body onload="init()">
<p>
<canvas id="gameCanvas" width="256" height="240"></canvas>
</p>
</body>
$ npm install nes-js
$ npm install
$ npm run all
This table shows the key - joypad configuration set by
window.onkeydown = function(e) { nes.handleKeyDown(e); };
window.onkeyup = function(e) { nes.handleKeyUp(e); };
| key | joypad |
|---|---|
| enter | start |
| space | select |
| cursor-left | left |
| cursor-up | up |
| cursor-right | right |
| cursor-down | down |
| x | A |
| z | B |
T.B.D.
FAQs
JavaScript NES emulator
We found that nes-js demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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