Segments mouse following
How do I make an segments mouse following?
What is a segments mouse following? How do you make a segments mouse following? This script and codes were developed by Max Huang on 26 December 2022, Monday.
Segments mouse following - Script Codes HTML Codes
<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Segments mouse following</title> <link rel="stylesheet" href="css/style.css">
</head>
<body> <script src="//cdnjs.cloudflare.com/ajax/libs/dat-gui/0.5/dat.gui.min.js" type="text/javascript"></script>
<canvas id="canvas"></canvas>
<div class="title">move your mouse</div> <script src="js/index.js"></script>
</body>
</html>
Segments mouse following - Script Codes CSS Codes
html, body { margin: 0px; background: #F09819; /* fallback for old browsers */ background: -webkit-radial-gradient(#00d2ff, #3a7bd5); /* Chrome 10-25, Safari 5.1-6 */ background: radial-gradient(#00d2ff, #3a7bd5); /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */ } canvas { display: block; } .title { color: #FFF; position: absolute; top: 8px; left: 12px; font-family: verdana; text-transform: uppercase; font-size: 10px; font-weight: bold; }
Segments mouse following - Script Codes JS Codes
var requestAnimationFrame = window.requestAnimationFrame || window.mozRequestAnimationFrame || window.webkitRequestAnimationFrame || window.msRequestAnimationFrame;
var cancelAnimationFrame = window.cancelAnimationFrame || window.mozCancelAnimationFrame;
var rAF;
var canvas = document.getElementById("canvas"), context = canvas.getContext("2d"), width = canvas.width = window.innerWidth, height = canvas.height = window.innerHeight, particles = [], mouseX = 0, mouseY = 0, total = 15, followSpeed = 0.1, size = 25;
document.body.addEventListener("mousemove", function (event) { mouseX = event.clientX; mouseY = event.clientY;
});
window.addEventListener('resize', function () { width = canvas.width = window.innerWidth; height = canvas.height = window.innerHeight;
});
function init() { cancelAnimationFrame(rAF); particles = []; for (var i = 0; i < total; i += 1) { particles.push(new Particle(i)); } draw();
}
function draw() { context.clearRect(0, 0, width, height); for (var i = 0; i < total; i += 1) { particles[i].update(); } rAF = requestAnimationFrame(draw);
}
/** * Particle */
var Particle, p;
Particle = function (index) { this.initialize(index);
};
p = Particle.prototype;
p.initialize = function (index) { this.x = -50; this.y = height; this.id = index + 1; this.angleX = Math.PI * 2 * Math.random(); this.angleY = Math.PI * 2 * Math.random(); this.speedX = .03 * Math.random() + .03; this.speedY = .03 * Math.random() + .03; this.radius = 150; return this;
};
p.update = function () { var aim, dx, dy, scale, angle; if (this.id > 1) { aim = particles[this.id - 1 - 1]; dx = aim.x - this.x; dy = aim.y - this.y; this.x += dx * con.speed; this.y += dy * con.speed; } else { if (mouseX === 0 && mouseY === 0) { dx = width / 2 + Math.cos(this.angleX) * this.radius - this.x; dy = height / 2 + Math.sin(this.angleY) * this.radius - this.y; this.x = width / 2 + Math.cos(this.angleX) * this.radius; this.y = height / 2 + Math.sin(this.angleY) * this.radius; this.angleX += this.speedX; this.angleY += this.speedY; } else { dx = mouseX - this.x; dy = mouseY - this.y; this.x += dx * con.speed; this.y += dy * con.speed; } } angle = Math.atan2(dy, dx); scale = Math.cos(Math.PI / 2 * (this.id / total)); context.save(); context.translate(this.x, this.y); context.rotate(angle); context.scale(scale, scale); context.beginPath(); context.moveTo(-size / 2 * 1.732, -size / 2); context.lineTo(0, 0); context.lineTo(-size / 2 * 1.732, size / 2); context.lineTo(-size / 2 * 1.2, 0); context.fillStyle = 'white'; context.fill(); context.restore();
};
// control bar
var ControlBar = function () { this.num = total; this.speed = followSpeed;
};
var con = new ControlBar();
var gui = new dat.GUI();
var conSpeed = gui.add(con, 'speed', 0.05, 0.25).step(0.05);
var conNum = gui.add(con, 'num', 10, 30).step(1);
conNum.onFinishChange(function (value) { total = value; init();
});
init();
Developer | Max Huang |
Username | nosir |
Uploaded | December 26, 2022 |
Rating | 4 |
Size | 2,909 Kb |
Views | 10,120 |
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