Particle Emitter

Developer
Lloydwheeler
Size
2,320 Kb
Views
6,072
  1. Particle Emitter Previews
  2. Particle Emitter HTML Codes
  3. Particle Emitter CSS Codes
  4. Particle Emitter JS Codes

How do I make an particle emitter?

What is a particle emitter? How do you make a particle emitter? This script and codes were developed by Lloydwheeler on 26 January 2023, Thursday.

Particle Emitter Previews
IQ Test

Particle Emitter - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Particle Emitter</title> <link rel="stylesheet" href="css/style.css">
</head>
<body> <canvas id="canvas"></canvas> <script src='http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js'></script> <script src="js/index.js"></script>
</body>
</html>

Particle Emitter - Script Codes CSS Codes

body { background: #333; height: 100%; margin: 0; overflow: hidden;
}
#canvas { background: #222; border-bottom: 1px solid #444;
}

Particle Emitter - Script Codes JS Codes

/* Horrible JS! Quickly hacked together so ignore the bad practices */
var canvas = document.getElementById('canvas');
var ctx = canvas.getContext('2d');
canvas.width = $(window).width();
canvas.height = $(window).height();
var particles = [];
var emissionPoint = {x: canvas.width/2, y: canvas.height/2};
var mouse = {x: 0, y: 0};
var mouseDelta = {x: 0, y: 0};
var gravity = 0.25;
function Particle(x, y, size, vx, vy, decayRate) { this.position = {x: x, y: y}; this.size = size; this.velocity = {x: vx, y: vy}; this.decayRate = decayRate;
}
$('#canvas').click(function(e) { emissionPoint.x = e.clientX; emissionPoint.y = e.clientY;
});
setInterval(function() { ctx.clearRect(0,0,canvas.width,canvas.height); particles.push(new Particle(emissionPoint.x, emissionPoint.y, Math.random()*10, randomRange(-10,10), randomRange(-5,5), Math.random())); for(var i = 0; i < particles.length; i++) { ctx.fillStyle = "rgba(0,255,255," + particles[i].decayRate + ")"; ctx.fillRect(particles[i].position.x, particles[i].position.y, particles[i].size, particles[i].size); particles[i].position.x += particles[i].velocity.x; particles[i].position.y += particles[i].velocity.y; particles[i].velocity.x *= .98; particles[i].velocity.y *= .98; particles[i].velocity.y += gravity; particles[i].decayRate -= Math.random()*.01; if (particles[i].position.x > canvas.width || particles[i].position.x < 0) { particles[i].velocity.x *= -1; } if (particles[i].position.y > canvas.height || particles[i].position.y + particles[i].size < 0) { particles[i].velocity.y *= -.75; } if(particles[i].decayRate <= 0) { particles.splice(i, 1); } }
}, 16);
function randomRange(min, max) { if (min < 0) { return min + Math.random() * (Math.abs(min)+max); }else { return min + Math.random() * max; }
}
Particle Emitter - Script Codes
Particle Emitter - Script Codes
Home Page Home
Developer Lloydwheeler
Username lloydwheeler
Uploaded January 26, 2023
Rating 3
Size 2,320 Kb
Views 6,072
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