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HTML

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CSS

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CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

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About Vendor Prefixing

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JavaScript

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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Packages

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Search for and use JavaScript packages from npm here. By selecting a package, an import statement will be added to the top of the JavaScript editor for this package.

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HTML 

              
                <canvas id="canvas" width=1800 height=1200 style=width:100%></canvas>

<script id="source" type="plain">
#include util
@run {
  vec2 uv = UVx2() * rot2(.5);
  float x = mod(uv.x, .05);
  float y = mod(uv.y - uTime * .05, .05);
  FLUSH(max(x, y) < 0.03 ? 0.5 : 0.0);
}
</script>

<div class="layer" id="logs" style="color:#ff0;text-shadow:0 0 6px #000"></div>

<div class="layer" id="info" style="color:#f00;text-shadow:0 0 6px #000;text-align:center"></div>

<div class="layer" style="text-align:right">
  <button id="pause">pause</button>
  <button id="resume">resume</button>
  <button id="stopp">stop</button>
</div>
!

CSS 

              
                body{font-family:monospace;font-size:130%;margin:0;background:#000}
.layer{position:absolute;left:0;top:0;bottom:0;right:0;padding:1rem}
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JS 

              
                /*

  DDZEB lands runner demo
  https://ddzeb.com
  
*/

(async() => {
  
  const {frag} = await import('https://ddzeb.com/lands/frag');
  const lands  = await import('https://ddzeb.com/lands/runner');
  const runner = lands.runner();
  
  // configure event handlers
  const logmsg = (msg) => {
    const div = document.createElement('div');
    div.innerText = msg;
    logs.appendChild(div);
    return div;
  };
  runner.onlog    = logmsg;
  runner.onstatus = (status) => logmsg('status:' + status);
  runner.onfps    = (fps, time, frame) => {
    info.innerText = frame + ' / ' + fps.toFixed(1) + ' fps';
  };
  
  // prepre
  runner.bind(canvas);
  runner.init();
  
  // attach rendering engine
  await frag(canvas, {
    preludes : 'base',
    progcode : source.innerText,
  });
  
  // animation
  runner.loop(canvas.render);
  
  // status control
  pause.addEventListener('click', runner.pause);
  resume.addEventListener('click', runner.resume);
  stopp.addEventListener('click', () => {
    runner.stop();
    runner.unbind();
  });
  
})();
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