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WorldForge
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>WorldForge — prompt to explorable terrain</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
  :root {
    --ink: #e8eef3;
    --dim: #93a3b1;
    --panel: #141a20;
    --line: #26313b;
    --accent: #6fd08c;
  }
  * { box-sizing: border-box; }
  html, body { height: 100%; margin: 0; }
  body {
    font: 14px/1.5 ui-sans-serif, system-ui, "Segoe UI", Roboto, sans-serif;
    color: var(--ink); background: #0c1014; overflow: hidden;
    display: grid; grid-template-columns: 320px 1fr;
  }
  body.busy { cursor: progress; }

  aside {
    background: var(--panel); border-right: 1px solid var(--line);
    padding: 18px; overflow-y: auto; display: flex; flex-direction: column; gap: 16px;
  }
  h1 { font-size: 17px; margin: 0; letter-spacing: -0.01em; }
  h1 span { color: var(--accent); }
  .sub { color: var(--dim); font-size: 12px; margin-top: 4px; }

  label { display: block; font-size: 11px; text-transform: uppercase;
          letter-spacing: 0.08em; color: var(--dim); margin-bottom: 6px; }
  input[type=text], input[type=number] {
    width: 100%; padding: 9px 10px; border-radius: 7px;
    border: 1px solid var(--line); background: #0e1418; color: var(--ink); font: inherit;
  }
  input:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

  .row { display: flex; gap: 8px; }
  .row > * { flex: 1; }
  button {
    padding: 9px 12px; border-radius: 7px; border: 1px solid var(--line);
    background: #1b242c; color: var(--ink); font: inherit; cursor: pointer;
  }
  button:hover { background: #23303a; }
  button:disabled { opacity: 0.5; cursor: default; }
  button.primary { background: var(--accent); color: #06110a; border-color: var(--accent); font-weight: 600; }
  button.primary:hover { background: #82dc9d; }
  button.on { background: var(--accent); color: #06110a; border-color: var(--accent); }

  #presets { display: flex; flex-wrap: wrap; gap: 6px; }
  #presets button { flex: 0 0 auto; padding: 5px 9px; font-size: 12px; border-radius: 20px; }

  #layout { width: 100%; aspect-ratio: 1; border-radius: 8px;
            border: 1px solid var(--line); image-rendering: pixelated; display: block; }

  ul#legend, ul#census { list-style: none; margin: 0; padding: 0;
                         display: flex; flex-direction: column; gap: 5px; }
  #legend li, #census li { display: flex; align-items: center; gap: 8px; font-size: 13px; }
  #legend i, #census i { width: 13px; height: 13px; border-radius: 3px; flex: 0 0 auto;
                         border: 1px solid rgba(255,255,255,.18); }
  #legend b, #census b { margin-left: auto; color: var(--dim); font-weight: 500;
                         font-variant-numeric: tabular-nums; }

  input[type=range] { width: 100%; accent-color: var(--accent); }
  #clockLabel { color: var(--accent); font-variant-numeric: tabular-nums; letter-spacing: 0; }

  #probe { display: flex; flex-direction: column; gap: 4px; font-size: 13px;
           background: #0e1418; border: 1px solid var(--line); border-radius: 7px; padding: 9px 10px; }
  #probe span { display: flex; gap: 8px; color: var(--dim); }
  #probe span b { margin-left: auto; color: var(--ink); font-weight: 500;
                  font-variant-numeric: tabular-nums; }
  #probe > b { color: var(--accent); }
  .dimmed { color: var(--dim); }

  #stats { color: var(--dim); font-size: 12px; font-variant-numeric: tabular-nums; }
  footer { margin-top: auto; color: var(--dim); font-size: 11px; line-height: 1.6; }
  footer a { color: #9ec7dd; }

  main { position: relative; }
  #view { width: 100%; height: 100%; display: block; }
  #hint {
    display: none; position: absolute; left: 50%; bottom: 24px; transform: translateX(-50%);
    background: rgba(10,14,18,.82); border: 1px solid var(--line); border-radius: 8px;
    padding: 8px 14px; font-size: 12px; color: var(--dim);
  }
  @media (max-width: 820px) {
    body { grid-template-columns: 1fr; grid-template-rows: auto 1fr; }
    aside { max-height: 46vh; }
  }
</style>
</head>
<body>
<aside>
  <div>
    <h1>World<span>Forge</span></h1>
    <div class="sub">A prompt becomes a region plan, a semantic layout map, and an explorable height field.</div>
  </div>

  <div>
    <label for="prompt">Prompt</label>
    <input id="prompt" type="text" value="a snowy alpine range above a pine forest and a lake"
           placeholder="describe a world…" autocomplete="off">
  </div>

  <div id="presets">
    <button data-p="a desert of red canyons and mesas">Canyons</button>
    <button data-p="volcanic island ringed by ocean and jungle">Volcanic island</button>
    <button data-p="snowy alpine peaks over a pine forest">Alps</button>
    <button data-p="savanna plains with scattered acacia">Savanna</button>
    <button data-p="frozen tundra and glaciers">Tundra</button>
    <button data-p="swamp and dense rainforest">Swamp</button>
  </div>

  <div class="row">
    <div style="flex:1.1">
      <label for="seed">Seed</label>
      <input id="seed" type="number" min="1" step="1" value="1">
    </div>
    <div style="display:flex; align-items:flex-end">
      <button id="reseed" title="New seed, same prompt">Reroll</button>
    </div>
  </div>

  <div class="row">
    <button id="go" class="primary">Generate</button>
    <button id="fly" title="WASD + mouse look, Esc to exit">Fly</button>
  </div>

  <div>
    <label>Semantic layout map</label>
    <canvas id="layout"></canvas>
  </div>

  <div>
    <label for="clock">Time of day <span id="clockLabel">12:00</span></label>
    <input id="clock" type="range" min="0" max="1000" value="420">
    <div class="row" style="margin-top:8px">
      <button id="play">Run day</button>
    </div>
  </div>

  <div>
    <label>Regions</label>
    <ul id="legend"></ul>
  </div>

  <div>
    <label>Inhabitants</label>
    <ul id="census"></ul>
  </div>

  <div>
    <label>Inspect</label>
    <div id="probe"><span class="dimmed">click the ground to inspect</span></div>
  </div>

  <div id="stats"></div>

  <div class="row">
    <button id="glb">Export GLB</button>
    <button id="json">World spec</button>
    <button id="png">Map</button>
  </div>

  <footer>
    An independent implementation of the terrain foundation described in
    <a href="https://arxiv.org/abs/2608.05248" target="_blank" rel="noopener">WorldClaw</a>
    (arXiv&nbsp;2608.05248). That project publishes no code or weights; nothing from it is
    used here. Everything runs in your browser.<br>
    Built by <a href="https://huggingface.co/VIDraft" target="_blank" rel="noopener">VIDraft</a>.
  </footer>
</aside>

<main>
  <canvas id="view"></canvas>
  <div id="hint">WASD move · mouse look · Q/E down/up · Shift boost · Esc exit</div>
</main>

<script type="importmap">
{ "imports": { "three": "./vendor/three.module.js" } }
</script>
<script type="module" src="./app.js"></script>
</body>
</html>