Let's make triangles.

Developer
Keegan Brown
Size
3,696 Kb
Views
28,336
  1. Let's make triangles. Previews
  2. Let's make triangles. HTML Codes
  3. Let's make triangles. JS Codes

How do I make an let's make triangles.?

What is a let's make triangles.? How do you make a let's make triangles.? This script and codes were developed by Keegan Brown on 16 October 2022, Sunday.

Let's make triangles. Previews
IQ Test

Let's make triangles. - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Let's make triangles.</title> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/meyer-reset/2.0/reset.min.css"> <script src="https://cdnjs.cloudflare.com/ajax/libs/prefixfree/1.0.7/prefixfree.min.js"></script>
</head>
<body> <script src='https://cdnjs.cloudflare.com/ajax/libs/gsap/1.19.0/TweenMax.min.js'></script> <script src="js/index.js"></script>
</body>
</html>

Let's make triangles. - Script Codes JS Codes

'use strict';
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
var canvas = document.createElement('canvas');
var canvasWidth = canvas.width = window.innerWidth;
var canvasHeight = canvas.height = window.innerHeight;
var ctx = canvas.getContext('2d');
var heightScale = 0.866;
var triangles;
function rnd(min, max) { return Math.floor(Math.random() * (max - min + 1) + min);
};
var Triangle = function () { function Triangle(dir, x, y, hue, sat, lig, opa, halfSide, triSide, rowHeight) { _classCallCheck(this, Triangle); this.dir = dir; this.x = x; this.y = y; this.hue = hue; this.lig = lig; this.sat = sat; this.opa = opa; this.halfSide = halfSide; this.triSide = triSide; this.rowHeight = rowHeight; } Triangle.prototype.render = function render(ctx) { // upward pointing triangle var clr = 'hsla(' + this.hue + ', ' + this.sat + '%, ' + this.lig + '%, ' + this.opa + ')'; ctx.fillStyle = clr; ctx.strokeStyle = clr; ctx.beginPath(); ctx.moveTo(this.x, this.y); if (this.dir > 0) { ctx.lineTo(this.x + this.halfSide, this.y + this.rowHeight); ctx.lineTo(this.x - this.halfSide, this.y + this.rowHeight); } else { ctx.lineTo(this.x + this.triSide, this.y); ctx.lineTo(this.x + this.halfSide, this.y + this.rowHeight); } ctx.closePath(); ctx.fill(); ctx.stroke(); // needed to fill antialiased gaps on edges }; return Triangle;
}();
function buildTriangles() { var hueStart = rnd(0, 360); var triSide = 80; var halfSide = triSide / 2; var rowHeight = Math.floor(triSide * heightScale); var columns = Math.ceil(canvasWidth / triSide) + 1; var rows = Math.ceil(canvasHeight / rowHeight); var col, row; var triangles = []; for (row = 0; row < rows; row++) { var hue = hueStart + row * 3; for (col = 0; col < columns; col++) { var x = col * triSide; var y = row * rowHeight; if (row % 2 != 0) { x -= halfSide; } triangles.push(new Triangle(1, x, y, hue, rnd(10, 90), rnd(10, 90), 0, halfSide, triSide, rowHeight)); triangles.push(new Triangle(-1, x, y, hue, rnd(10, 90), rnd(10, 90), 0, halfSide, triSide, rowHeight)); }; }; fadeInTriangles(triangles); return triangles;
}
function fadeInTriangles(triangles) { triangles.forEach(function (triangle, index) { TweenMax.to(triangle, 0.5, { opa: 1, delay: Math.random() * 0.1 + index * 0.001 }); }); setTimeout(function () { fadeOutTriangles(triangles); }, 3000);
}
function fadeOutTriangles(triangles) { triangles.forEach(function (triangle, index) { TweenMax.to(triangle, 0.5, { opa: 0, delay: Math.random() * 0.1 + index * 0.001 }); }); setTimeout(function () { fadeInTriangles(triangles); }, 3000);
}
function setup() { triangles = buildTriangles();
}
function render() { requestAnimationFrame(render); ctx.fillStyle = 'rgb(0,0,0)'; ctx.fillRect(0, 0, canvasWidth, canvasHeight); ctx.lineWidth = 1; triangles.forEach(function (tri) { tri.render(ctx); });
};
setup();
document.body.appendChild(canvas);
document.addEventListener('click', setup);
render();
Let's make triangles. - Script Codes
Let's make triangles. - Script Codes
Home Page Home
Developer Keegan Brown
Username keeganbrown
Uploaded October 16, 2022
Rating 3
Size 3,696 Kb
Views 28,336
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