index.html

<!doctype html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <link rel="icon" type="image/svg+xml" href="/vite.svg" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Vite + TS</title>
  </head>
  <body>
    <h5>You can edit start/end pos in console `window._ctx.grid.startPos = {x: 1, y: 0}`</h5>
    <h5>Use the arrows to move the green square</h5>
    <div id="app"></div>
    <script type="module" src="/src/main.ts"></script>
  </body>
</html>