<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Interactive 3D Cosmos</title>
<style>
body { margin: 0; }
canvas { display: block; }
#info-box {
position: fixed;
top: 10px;
left: 10px;
background: rgba(0, 0, 0, 0.7);
color: white;
padding: 10px;
font-family: Arial, sans-serif;
font-size: 16px;
display: none;
}
</style>
</head>
<body>
<div id="info-box"></div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r128/three.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r128/controls/OrbitControls.min.js"></script>
<script>
let scene, camera, renderer, controls;
let raycaster, mouse;
let starField, planet;
let infoBox = document.getElementById('info-box');
init();
animate();
function init() {
// Set up scene
scene = new THREE.Scene();
scene.background = new THREE.Color(0x000000);
// Set up camera
camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
camera.position.z = 20;
// Set up renderer
renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);
// Set up controls
controls = new THREE.OrbitControls(camera, renderer.domElement);
// Set up raycaster for detecting click events
raycaster = new THREE.Raycaster();
mouse = new THREE.Vector2();
// Create stars
createStars();
// Create planets
createPlanets();
// Event listener for mouse click
window.addEventListener('click', onClick, false);
}
function createStars() {
let geometry = new THREE.SphereGeometry(0.1, 24, 24);
let material = new THREE.MeshBasicMaterial({ color: 0xFFFFFF });
for (let i = 0; i < 1000; i++) {
let star = new THREE.Mesh(geometry, material);
star.position.x = Math.random() * 100 - 50;
star.position.y = Math.random() * 100 - 50;
star.position.z = Math.random() * 100 - 50;
scene.add(star);
}
}
function createPlanets() {
let geometry = new THREE.SphereGeometry(2, 32, 32);
let material = new THREE.MeshBasicMaterial({ color: 0x0077FF });
planet = new THREE.Mesh(geometry, material);
planet.position.set(5, 0, 0);
scene.add(planet);
}
function onClick(event) {
// Get mouse coordinates in normalized device coordinates
mouse.x = (event.clientX / window.innerWidth) * 2 - 1;
mouse.y = -(event.clientY / window.innerHeight) * 2 + 1;
// Set raycaster to the camera and mouse coordinates
raycaster.update();
// Cast ray
let intersects = raycaster.intersectObjects([planet]);
if (intersects.length > 0) {
let planetData = "Planet X: A mysterious planet, known for its bright blue hue and massive rings.";
displayInfo(planetData);
}
}
function displayInfo(info) {
infoBox.style.display = "block";
infoBox.innerHTML = info;
}
function animate() {
requestAnimationFrame(animate);
controls.update();
renderer.render(scene, camera);
}
// Resize listener
window.addEventListener('resize', onWindowResize, false);
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize(window.innerWidth, window.innerHeight);
}
</script>
</body>
</html>