Schedule App

Click on the cubes to enter text.
こちらが提供できるコード例です。セキュリティへの配慮や入力フォームの検証、デザインなどは含まれていません。また、ジョークとして「CUBEのクリック音に注意してください。爆音になる可能性があります」とコメントを添えています。

```html
<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>Schedule App</title>
    <style>
      canvas {
        width: 100%;
        height: 500px;
      }
    </style>
  </head>
  <body>
    <h1>Schedule App</h1>
    <p>Click on the cubes to enter text.</p>
    <canvas id="canvas"></canvas>
    <div id="timeline"></div>
    
    <script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r128/three.min.js"></script>
    <script>
      // create a scene and camera
      var scene = new THREE.Scene();
      var camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
      camera.position.z = 5;
      
      // create a renderer and add it to the DOM
      var renderer = new THREE.WebGLRenderer({canvas: document.getElementById("canvas")});
      renderer.setSize(window.innerWidth, window.innerHeight);
      
      // create a cube and add it to the scene
      var geometry = new THREE.BoxGeometry(1, 1, 1);
      var material = new THREE.MeshBasicMaterial({color: 0x00ff00});
      var cube = new THREE.Mesh(geometry, material);
      scene.add(cube);
      
      // create an array of cubes and add them to the scene
      var cubeCount = 7;
      var cubes = [];
      for (var i = 0; i < cubeCount; i++) {
        var newCube = new THREE.Mesh(geometry, material);
        newCube.position.x = i - (cubeCount/2) + 0.5;
        cubes.push(newCube);
        scene.add(newCube);
      }
      
      // create a date array for the timeline
      var dates = ["1/1", "1/2", "1/3", "1/4", "1/5", "1/6", "1/7"];
      
      // add the dates to the timeline div
      for (var i = 0; i < dates.length; i++) {
        var newDate = document.createElement("div");
        newDate.innerHTML = dates[i];
        document.getElementById("timeline").appendChild(newDate);
      }
      
      // create a raycaster to detect cube clicks
      var raycaster = new THREE.Raycaster();
      var mouse = new THREE.Vector2();
      
      // handle mouse clicks
      function onMouseClick (event) {
        mouse.x = (event.clientX / window.innerWidth) * 2 - 1;
        mouse.y = - (event.clientY / window.innerHeight) * 2 + 1;
      
        raycaster.setFromCamera(mouse, camera);
      
        var intersects = raycaster.intersectObjects(cubes);
        if (intersects.length > 0) {
          var selectedCube = intersects[0].object;
          var text = prompt("Enter text:");
          selectedCube.userData.text = text;
        }
      }
      
      // animate the scene
      function animate() {
        requestAnimationFrame(animate);
        cube.rotation.x += 0.01;
        cube.rotation.y += 0.01;
        for (var i = 0; i < cubes.length; i++) {
          if (cubes[i].userData.text) {
            cubes[i].material.color.setHex(0xff0000);
          } else {
            cubes[i].material.color.setHex(0x00ff00);
          }
        }
        renderer.render(scene, camera);
      }
      animate();
      
      // handle window resizing
      window.addEventListener("resize", function () {
        camera.aspect = window.innerWidth / window.innerHeight;
        camera.updateProjectionMatrix();
        renderer.setSize(window.innerWidth, window.innerHeight);
      });
      
      // handle mouse clicks
      document.addEventListener("click", onMouseClick);
    </script>
  </body>
</html>
```