Skoatpalace/app.js

## app.js
const canvas = document.getElementById('canvas');
const ctx = canvas.getContext('2d');

canvas.width = window.innerWidth;
canvas.height = window.innerHeight;

canvas.addEventListener('resize', () => {
    canvas.width = window.innerWidth;
    canvas.height = window.innerHeight;
})

const color = {
    h: 360,
    s: 50,
    l: 50
}

const vague = {
    y: canvas.height / 2,
    nbCourbes: 0.01,
    amplitude: 300,
    frequence: 0.01
}

let increment = vague.frequence

const animate = () => {
    requestAnimationFrame(animate);
    ctx.fillStyle = 'rgba(0, 0, 0, 0.01)';
    ctx.fillRect(0, 0, canvas.width, canvas.height);

    ctx.beginPath();
    ctx.moveTo(0, vague.y);

    for (let i = 0; i < canvas.width; i++) {
        ctx.lineTo(i, vague.y + Math.sin(i * vague.nbCourbes + increment) * vague.amplitude * Math.sin(increment));
    }
    ctx.strokeStyle = `hsl(${Math.abs(color.h) * Math.sin(increment)}, ${color.s}%, ${color.l}%)`
    ctx.stroke();

    increment += vague.frequence;
}
animate();

## index.html
<!DOCTYPE html>
<html lang="fr">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Sinusoïdal canvas</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }

        html, body {
            width: 100%;
            height: 100%;
        }

        canvas {
            display: block;
        }
    </style>
</head>
<body>
    <canvas id="canvas"></canvas>
    <script src="app.js"></script>
</body>
</html>
	const canvas = document.getElementById('canvas');
	const ctx = canvas.getContext('2d');

	canvas.width = window.innerWidth;
	canvas.height = window.innerHeight;

	canvas.addEventListener('resize', () => {
	canvas.width = window.innerWidth;
	canvas.height = window.innerHeight;
	})

	const color = {
	h: 360,
	s: 50,
	l: 50
	}

	const vague = {
	y: canvas.height / 2,
	nbCourbes: 0.01,
	amplitude: 300,
	frequence: 0.01
	}

	let increment = vague.frequence

	const animate = () => {
	requestAnimationFrame(animate);
	ctx.fillStyle = 'rgba(0, 0, 0, 0.01)';
	ctx.fillRect(0, 0, canvas.width, canvas.height);

	ctx.beginPath();
	ctx.moveTo(0, vague.y);

	for (let i = 0; i < canvas.width; i++) {
	ctx.lineTo(i, vague.y + Math.sin(i * vague.nbCourbes + increment) * vague.amplitude * Math.sin(increment));
	}
	ctx.strokeStyle = `hsl(${Math.abs(color.h) * Math.sin(increment)}, ${color.s}%, ${color.l}%)`
	ctx.stroke();

	increment += vague.frequence;
	}
	animate();
	<!DOCTYPE html>
	<html lang="fr">
	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Sinusoïdal canvas</title>
	<style>
	* {
	margin: 0;
	padding: 0;
	}

	html, body {
	width: 100%;
	height: 100%;
	}

	canvas {
	display: block;
	}
	</style>
	</head>
	<body>
	<canvas id="canvas"></canvas>
	<script src="app.js"></script>
	</body>
	</html>