Chapter 6: Code Revealed
Scott's fingers danced across the keyboard as he opened a new file, revealing the fruits of his labor:
``html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>CitySymphony</title>
<link rel="stylesheet" href="styles.css">
</head>
<body>
<div id="canvas"></div>
<script src="script.js"></script>
</body>
</html>
`
The HTML structure was simple yet elegant, providing a foundation for the visual masterpiece to come.
css
/ styles.css /
body {
font-family: Arial, sans-serif;
margin: 0;
padding: 0;
}
#canvas {
width: 100vw;
height: 100vh;
background-color: #333;
position: relative;
}
`
The CSS added a touch of sophistication to the layout, defining the canvas area where CitySymphony would unfold.
javascript
// script.js
const canvas = document.getElementById('canvas');
const ctx = canvas.getContext('2d');
let particleCount = 0;
let particles = ;
function Particle(x, y) {
this.x = x;
this.y = y;
this.vx = Math.random() * 2 - 1;
this.vy = Math.random() * 2 - 1;
}
function drawParticles() {
ctx.clearRect(0, 0, canvas.width, canvas.height);
for (let i = 0; i < particles.length; i++) {
const particle = particles;
ctx.beginPath();
ctx.arc(particle.x, particle.y, 3, 0, Math.PI * 2);
ctx.fillStyle = rgba(255, 255, 255, ${particle.alpha});
ctx.fill();
particle.x += particle.vx;
particle.y += particle.vy;
if (particle.y > canvas.height || particle.y < 0) {
particle.vy *= -1;
}
if (particle.x > canvas.width || particle.x < 0) {
particle.vx *= -1;
}
}
}
function addParticles(num, x, y) {
for (let i = 0; i < num; i++) {
particles.push(new Particle(x + Math.random() 20 - 10, y + Math.random() 20 - 10));
}
}
function update() {
drawParticles();
requestAnimationFrame(update);
}
update();
// Initialize the first wave of particles
addParticles(1000, canvas.width / 2, canvas.height / 2);
// Event listeners for user interaction
canvas.addEventListener('mousemove', (e) => {
addParticles(20, e.clientX, e.clientY);
});
``
The JavaScript brought Scott's vision to life, using the canvas element to create a mesmerizing display of particles that responded to user interactions.
As he reviewed his code, Scott felt a sense of pride and accomplishment. CitySymphony was taking shape, and it was more breathtaking than he had ever imagined. The code was just the beginning – now it was time to share this digital wonder with the world.