Circles

Developer
Pogany
Size
2,621 Kb
Views
10,120
  1. Circles Previews
  2. Circles HTML Codes
  3. Circles CSS Codes
  4. Circles JS Codes

How do I make an circles?

What is a circles? How do you make a circles? This script and codes were developed by Pogany on 09 November 2022, Wednesday.

Circles Previews
IQ Test

Circles - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>circles</title> <link rel="stylesheet" href="css/style.css">
</head>
<body> <canvas id="canvas">http://www.colourlovers.com/palette/482774/dream_magnet</canvas> <script src="js/index.js"></script>
</body>
</html>

Circles - Script Codes CSS Codes

body { background-color: #343838;
}
canvas { display: block; margin: 0 auto; margin: calc(50vh - 250px) auto 0; background-color: #343838;
}

Circles - Script Codes JS Codes

var canvas = document.getElementById("canvas");
var ctx = canvas.getContext("2d");
var cw = canvas.width = 500, cx = cw / 2;
var ch = canvas.height = 500, cy = ch / 2;
var R = 150;
var rad = Math.PI / 180;
var frames = 0;
ctx.strokeStyle = "#343838";
ctx.lineWidth = .5;
var colors = ["#005F6B","#008C9E","#00B4CC","#00DFFC"];
particles = [];
function Particle() { this.R = ~~(Math.random() * R + 1); this.a = ~~(Math.random() * 360) * rad; this.x = cx + this.R * Math.cos(this.a); this.y = cy + this.R * Math.sin(this.a); this.color = colors[~~(Math.random() * colors.length)]; this.r = 1; this.v = ~~(Math.random() * 20 + 5)/25;
}
Particle.prototype.draw = function() { ctx.beginPath(); ctx.fillStyle = this.color; ctx.arc(this.x, this.y, this.r, 0, 2 * Math.PI); ctx.fill(); ctx.stroke()
} var particle = new Particle(); particle.draw(); particles.push(particle);
function testCollisionWall(p){ var dx = cx - p.x; var dy = cy - p.y; var dist = Math.sqrt(dx * dx + dy * dy); if (dist + p.r >= R) { return true; }
}
function testCollisionParticles(p1, p2) { var dx = p2.x - p1.x; var dy = p2.y - p1.y; var dist = Math.sqrt(dx * dx + dy * dy); if (p1.r + p2.r + 2*ctx.lineWidth >= dist) { return true; }
}
function Draw() { elId = window.requestAnimationFrame(Draw); ctx.clearRect(0, 0, cw, ch); //if (frames % 10 == 0) { var particle = new Particle(); flag = false for (var i = 0; i < particles.length; i++) { if (testCollisionParticles(particles[i], particle)) { flag = true; break; } } if (flag == false) particles.push(particle); //}
for (var i = 0; i < particles.length; i++) { if(testCollisionWall(particles[i])){particles[i].v = 0;} for (var j = i + 1; j < particles.length; j++) { if (testCollisionParticles(particles[i], particles[j])) { particles[i].v = 0; particles[j].v = 0; } } particles[i].r += particles[i].v; particles[i].draw();
}
frames++;
}
elId = window.requestAnimationFrame(Draw);
function randomIntFromInterval(mn, mx) { return ~~(Math.random() * (mx - mn + 1) + mn);
}
Circles - Script Codes
Circles - Script Codes
Home Page Home
Developer Pogany
Username giaco
Uploaded November 09, 2022
Rating 3
Size 2,621 Kb
Views 10,120
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