Canvas experiment 3

Developer
Justin Richardsson
Size
3,609 Kb
Views
36,432
  1. Canvas experiment 3 Previews
  2. Canvas experiment 3 HTML Codes
  3. Canvas experiment 3 CSS Codes
  4. Canvas experiment 3 JS Codes

How do I make an canvas experiment 3?

Click anywhere and it'll create a dot there, unless there's already one nearby.TODO: Make the nearby dots grow or something.. What is a canvas experiment 3? How do you make a canvas experiment 3? This script and codes were developed by Justin Richardsson on 31 August 2022, Wednesday.

Canvas experiment 3 Previews
IQ Test

Canvas experiment 3 - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Canvas experiment 3</title> <link rel="stylesheet" href="css/style.css">
</head>
<body> <canvas width="600" height="600" id="canvasHtml"> No canvas for you!
</canvas> <script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.0/jquery.min.js'></script> <script src="js/index.js"></script>
</body>
</html>

Canvas experiment 3 - Script Codes CSS Codes

body { background: #000; display:-webkit-box; display:-ms-flexbox; display:flex; height: 95vh; -webkit-box-align: center; -ms-flex-align: center; align-items: center; -webkit-box-pack: center; -ms-flex-pack: center; justify-content: center;
}
canvas { background: #666;
}

Canvas experiment 3 - Script Codes JS Codes

"use strict";
var canvas = null, context = null, bufferCanvas = null, bufferCanvasCtx = null, flakeArray = [], flakeTimer = null, maxFlakes = 200;
function Flake() { this.x = Math.round(Math.random() * context.canvas.width); this.y = -10; this.drift = Math.random(); this.speed = Math.round(Math.random() * 5) + 1; this.width = (Math.random() * 3) + 2; this.height = this.width;
}
$(function init() { canvas = document.getElementById('canvasHtml'); context = canvas.getContext("2d"); bufferCanvas = document.createElement("canvas"); bufferCanvasCtx = bufferCanvas.getContext("2d"); bufferCanvasCtx.canvas.width = context.canvas.width; bufferCanvasCtx.canvas.height = context.canvas.height; // initialize the rects flakeTimer = setInterval(addFlake, 200); draw(); setInterval(animate, 30);
});
function addFlake() { flakeArray[flakeArray.length] = new Flake(); if (flakeArray.length == maxFlakes) clearInterval(flakeTimer);
}
function blank() { bufferCanvasCtx.fillStyle = "#220022"; bufferCanvasCtx.fillRect(0, 0, bufferCanvasCtx.canvas.width, bufferCanvasCtx.canvas.height);
}
function animate() { update(); draw();
}
function update() { for (var i = 0; i < flakeArray.length; i++) { if (flakeArray[i].y < context.canvas.height) { flakeArray[i].y += flakeArray[i].speed; if (flakeArray[i].y > context.canvas.height) flakeArray[i].y = -5; flakeArray[i].x += flakeArray[i].drift; if (flakeArray[i].x > context.canvas.width) flakeArray[i].x = 0; } }
}
function draw() { context.save(); //* // create a clipping region bufferCanvasCtx.beginPath(); bufferCanvasCtx.fillStyle = "black"; bufferCanvasCtx.fillRect(0, 0, bufferCanvas.width, bufferCanvas.height); bufferCanvasCtx.arc(bufferCanvas.width / 2, bufferCanvas.height / 2, bufferCanvas.height / 3, 0, 2 * Math.PI); bufferCanvasCtx.clip(); //*/ blank(); for (var i = 0; i < flakeArray.length; i++) { bufferCanvasCtx.fillStyle = "white"; bufferCanvasCtx.fillRect(flakeArray[i].x, flakeArray[i].y, flakeArray[i].width, flakeArray[i].height); } // copy the entire rendered image from the buffer canvas to the visible one context.drawImage(bufferCanvas, 0, 0, bufferCanvas.width, bufferCanvas.height); context.restore();
}
Canvas experiment 3 - Script Codes
Canvas experiment 3 - Script Codes
Home Page Home
Developer Justin Richardsson
Username hallaathrad
Uploaded August 31, 2022
Rating 3
Size 3,609 Kb
Views 36,432
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