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Mouse event position on a canvas rescaled by a CSS rule

When a HTML canvas is in "standard" 1:1 scale (neither enlarged nor shrinked by a CSS rule), it is simple to get the mouse position in the canvas coordinates:
c2.onpointermove = (e) => {
var mousemove_coords = { x: e.offsetX, y: e.offsetY };
Here is an example where the canvas' size gets modified by flex + max-width CSS rules. The cursor should change only on top of the green square, which is not the case here, the cursor changes on bottom right of the square.
How to get the coordinates of a mouse event over a canvas when it is resized by a CSS rule?
var c1 = document.getElementById("canvas1"), ctx1 = c1.getContext("2d");
var c2 = document.getElementById("canvas2"), ctx2 = c2.getContext("2d");
var w = 2000, h = 1000;
var x0 = 50, y0 = 75, x1 = 100, y1 = 200;
ctx1.canvas.width = w;
ctx1.canvas.height = h;
ctx1.rect(0, 0, w, h);
ctx1.fill();
ctx2.canvas.width = w;
ctx2.canvas.height = h;
ctx2.rect(x0, y0, x1, y1);
ctx2.fillStyle = "green";
ctx2.fill();
c2.onpointermove = (e) => {
var mousemove_coords = { x: e.offsetX, y: e.offsetY };
var hovered =
mousemove_coords.x >= x0 &&
mousemove_coords.x <= x1 &&
mousemove_coords.y >= y0 &&
mousemove_coords.y <= y1;
c2.style.cursor = hovered ? "move" : "crosshair";
};
body, .container { height: 100%; width: 100%; margin: 0; padding: 0; }
.container { display: flex; align-items: center; justify-content: center; background-color: yellow; }
.left-column { margin: 1rem; flex: 1; display: flex; align-items: center; justify-content: center; }
.canvas-wrapper { position: relative; }
#canvas1 { max-width: 100%; max-height: 100%; }
#canvas2 { position: absolute; top: 0; left: 0; max-width: 100%; max-height: 100%; }
.right-column { width: 300px; }
<div class="container">
<div class="left-column column">
<div class="canvas-wrapper">
<canvas id="canvas1"></canvas>
<canvas id="canvas2"></canvas>
</div>
</div>
<div class="right-column column">
Hello world
</div>
</div>
Edit: in my real code, I'm drawing on the canvas from frames received by HTTP requests with:
update_frame_task = setInterval(() => {
fetch("get_frame")
.then((r) => r.arrayBuffer())
.then((arr) => {
if (size === null) {
size = { w: 2000, h: 1000 };
ctx.canvas.width = size.w;
ctx.canvas.height = size.h;
ctx2.canvas.width = size.w;
ctx2.canvas.height = size.h;
}
var byteArray = new Uint8ClampedArray(arr);
var imgData = new ImageData(byteArray, size.w, size.h);
ctx.putImageData(imgData, 0, 0);
});
}, 200);

You can scale the mouse co-ordinates to the CSS resize using getComputedStyle.
Also, canvas rect uses width and height.
var c1 = document.getElementById("canvas1"), ctx1 = c1.getContext("2d");
var c2 = document.getElementById("canvas2"), ctx2 = c2.getContext("2d");
var w = 2000, h = 1000;
var x0 = 50, y0 = 75, x1 = 100, y1 = 200;
ctx1.canvas.width = w;
ctx1.canvas.height = h;
ctx1.rect(0, 0, w, h);
ctx1.fill();
ctx2.canvas.width = w;
ctx2.canvas.height = h;
ctx2.rect(x0, y0, x1, y1);
ctx2.fillStyle = "green";
ctx2.fill();
ratio=w/parseFloat(window.getComputedStyle(c2).width);
c2.onpointermove = (e) => {
var mousemove_coords = { x: e.offsetX*ratio, y: e.offsetY*ratio };
k.innerHTML=mousemove_coords.x+'<br>'+mousemove_coords.y; // scaled coords
var hovered =
mousemove_coords.x >= x0 &&
mousemove_coords.x <= x0+x1 &&
mousemove_coords.y >= y0 &&
mousemove_coords.y <= y0+y1;
c2.style.cursor = hovered ? "move" : "crosshair";
};
body, .container { height: 100%; width: 100%; margin: 0; padding: 0; }
.container { display: flex; align-items: center; justify-content: center; background-color: yellow; }
.left-column { margin: 1rem; flex: 1; display: flex; align-items: center; justify-content: center; }
.canvas-wrapper { position: relative; }
#canvas1 { max-width: 100%; max-height: 100%; }
#canvas2 { position: absolute; top: 0; left: 0; max-width: 100%; max-height: 100%; }
.right-column { width: 300px; }
<div class="container">
<div class="left-column column">
<div class="canvas-wrapper">
<canvas id="canvas1"></canvas>
<canvas id="canvas2"></canvas>
</div>
</div>
<div id='k' class="right-column column">
Hello world
</div>
</div>

Don't resize the CSS size of the canvas, the image in it only gets blurry. Instead, scale the image. As putImageData doesn't support scaling, use drawImage to draw the image into the canvas, it has the ability to scale the image. Since ImageData object can't be passed to drawImage, you've to convert it to ImageBitmap using createImageBitmap. With these changes your fetch should look something like this:
fetch("get_frame")
.then((r) => r.arrayBuffer())
.then(async (arr) => {
if (size === null) {
size = {
w: 2000,
h: 1000
};
}
var byteArray = new Uint8ClampedArray(arr);
var imgData = new ImageData(byteArray, size.w, size.h);
var image = await createImageBitmap(imageData);
ctx.drawImage(image, 0, 0, 800, 400);
});
This might not fix all the issues, as you've already might have changed the size of the canvas with CSS. To fix that you could remove all the CSS of the canvas, and apply JMP's answer, and set the dimensions with width and height attributes of the canvas when the layout of the page is created/changes. Responsive canvases are a bit tricky to design.

clickable object or shape inside a canvas viewbox window

<!DOCTYPE html>
<html>
<head>
<title>Page Title</title>
<style>
body {
font-family: "Lato", sans-serif;
}
.sidenav {
height: 100%;
width: 0;
position: fixed;
z-index: 1;
top: 0;
left: 0;
background-color: #111;
overflow-x: hidden;
transition: 0.5s;
padding-top: 60px;
}
.sidenav a {
padding: 8px 8px 8px 32px;
text-decoration: none;
font-size: 25px;
color: #818181;
display: block;
transition: 0.3s;
}
.sidenav a:hover {
color: #f1f1f1;
}
.sidenav .closebtn {
position: absolute;
top: 0;
right: 25px;
font-size: 36px;
margin-left: 50px;
}
#main {
transition: margin-left .5s;
padding: 16px;
}
#media screen and (max-height: 450px) {
.sidenav {padding-top: 15px;}
.sidenav a {font-size: 18px;}
}
</style>
</head>
<body>
<div id="mySidenav" class="sidenav">
×
About
Services
Clients
Contact
</div>
<div id="main">
<span style="font-size:30px;cursor:pointer" onclick="openNav()">☰ Menu</span>
<canvas id="canvas" width="600" height="350" style="border:2px solid #d3d3d3;">></canvas>
</div>
<script>
var zoomIntensity = 0.1;
var canvas = document.getElementById("canvas");
var context = canvas.getContext("2d");
var width = 90;
var height = 50;
var scale = 1;
var originx = 0;
var originy = 0;
var visibleWidth = width;
var visibleHeight = height;
var c = document.getElementById("canvas");
var ctx = c.getContext("2d");
function draw(){
context.fillStyle = "white";
context.fillRect(originx,originy,1000/scale,800/scale);
context.fillStyle = "blue";
context.fillRect(170,50,50,50);
context.fillStyle = "white";
context.fillText('click here',175,70);
}
setInterval(draw, 1000/60);
canvas.onwheel = function (event){
event.preventDefault();
var mousex = event.clientX - canvas.offsetLeft;
var mousey = event.clientY - canvas.offsetTop;
var wheel = event.deltaY < 0 ? 1 : -1;
var zoom = Math.exp(wheel*zoomIntensity);
context.translate(originx, originy);
originx -= mousex/(scale*zoom) - mousex/scale;
originy -= mousey/(scale*zoom) - mousey/scale;
context.scale(zoom, zoom);
context.translate(-originx, -originy);
scale *= zoom;
visibleWidth = width / scale;
visibleHeight = height / scale;
}
function openNav() {
document.getElementById("mySidenav").style.width = "200px";
document.getElementById("main").style.marginLeft = "200px";
}
function closeNav() {
document.getElementById("mySidenav").style.width = "0";
document.getElementById("main").style.marginLeft= "0";
}
</script>
</body>
</html>
is there away to make a shape or object clickable on canvas frame or viewbox, even when i zoom in or out, cause all the examples i saw was just a fixed clickable location. for instance google map locations when i zoom in i can click more objects.
is there away to make a shape or object clickable on canvas frame or viewbox, even when i zoom in or out, cause all the examples i saw was just a fixed clickable location. for instance google map locations when i zoom in i can click more objects.

There are two spaces you have to account for, the actual canvas space and the translated space. This means you need to translate the mouse coordinates in order to know where in the space the object is actually located and map it back to the canvas coordinates so you can know if you are clicking on it. This is achieved by keeping track of the offset value you provided in the var originx, but the problem is that there is no way based on my trails at least for you to translate the mouse click location if you use the context.translate(originx, originy) if you both scale and pan the object space.
I have rewritten the code without the use of the translate function by making my own translate function that enables you to translate between the canvas space and object space in order to register a click event on the object regardless of the panned or zoomed in location.
This function also has a click to pan feature so you can click and drag the object screen to where ever you want to object to be positioned.
/*jshint esversion: 8 */
(function() {
const canvas = document.querySelector("canvas");
const context = canvas.getContext("2d");
let canvasWidth = 600;
let canvasHeight = 600;
let offset = {
x: 0,
y: 0
};
let pan = {
x: 0,
y: 0
};
var zoomIntensity = 0.1;
let scale = 1;
let mouse = {
x: 0,
y: 0
};
let dragging = false;
let square;
let shapes = [{
x: 170,
y: 50,
w: 50,
h: 50,
color: "blue"
},
{
x: 85,
y: 25,
w: 50,
h: 50,
color: "red"
},
{
x: 50,
y: 100,
w: 50,
h: 50,
color: "green"
},
];
function init() {
canvas.width = canvasWidth;
canvas.height = canvasHeight;
renderCanvas();
}
function drawSquare(x, y, width, height, color) {
context.fillStyle = color;
context.fillRect(x, y, width, height);
}
function objectsToCanvasScreen(x, y) {
const canvasScreenX = Math.floor((x - offset.x) * scale);
const canvasScreenY = Math.floor((y - offset.y) * scale);
return {
x: canvasScreenX,
y: canvasScreenY
};
}
function canvasToObjectsScreen(x, y) {
return {
x: x / scale + offset.x,
y: y / scale + offset.y
};
}
function renderCanvas() {
context.clearRect(0, 0, canvas.width, canvas.height);
shapes.forEach(({
x,
y,
w,
h,
color
}, index) => {
const {
x: csx,
y: csy
} = objectsToCanvasScreen(x, y);
shapes[index]._x = csx;
shapes[index]._y = csy;
shapes[index]._w = w * scale;
shapes[index]._h = h * scale;
drawSquare(csx, csy, w * scale, h * scale, color);
});
}
canvas.onwheel = function(e) {
const zoom = Math.exp((e.deltaY < 0 ? 1 : -1) * zoomIntensity);
const beforeZoom = canvasToObjectsScreen(mouse.x, mouse.y);
scale *= zoom;
const afterZoom = canvasToObjectsScreen(mouse.x, mouse.y);
offset.x += beforeZoom.x - afterZoom.x;
offset.y += beforeZoom.y - afterZoom.y;
renderCanvas();
};
canvas.onmousedown = function(e) {
if (e.button === 0) {
pan.x = mouse.x;
pan.y = mouse.y;
dragging = true;
}
};
canvas.onmouseup = (e) => (dragging = false);
canvas.onmousemove = function(e) {
mouse.x = e.offsetX;
mouse.y = e.offsetY;
if (dragging) {
offset.x -= (mouse.x - pan.x) / scale;
offset.y -= (mouse.y - pan.y) / scale;
pan.x = mouse.x;
pan.y = mouse.y;
renderCanvas();
}
};
canvas.onclick = function(e) {
shapes.forEach(({
_x,
_y,
_w,
_h,
color
}) => {
const {
x: mousex,
y: mousey
} = canvasToObjectsScreen(mouse.x, mouse.y);
const {
x: squarex,
y: squarey
} = canvasToObjectsScreen(_x, _y);
if (
mousex >= squarex &&
mousex <= _w / scale + squarex &&
mousey >= squarey &&
mousey <= _h / scale + squarey
) {
alert(`${color} clicked!`);
}
});
};
init();
})();
body {
font-family: "Lato", sans-serif;
}
#canvas {
background: #E1BC8B;
}
<body>
<div id="main">
<canvas id="canvas" width="300" height="350"></canvas>
</div>
</body>

Get alert and get text in the bottom

i am trying to get alert from the main big circle alone. The alert should not come from the small circles.
How to get alert from the big circle alone? and Text for small circle should be in the bottom the each circle. For me its showing in the top right corner of the circles. Can anyone help me to solve this thing?
Thanks in advance
var noop = function() {
return this;
};
function UserCanceledError() {
this.name = 'UserCanceledError';
this.message = 'User canceled dialog';
}
UserCanceledError.prototype = Object.create(Error.prototype);
function Dialog() {
this.setCallbacks(noop, noop);
}
Dialog.prototype.setCallbacks = function(okCallback, cancelCallback) {
this._okCallback = okCallback;
return this;
};
Dialog.prototype.waitForUser = function() {
var _this = this;
return new Promise(function(resolve, reject) {
_this.setCallbacks(resolve, reject);
});
};
Dialog.prototype.show = noop;
Dialog.prototype.hide = noop;
function PromptDialog() {
Dialog.call(this);
this.el = document.getElementById('dialog');
this.messageEl = this.el.querySelector('.message');
this.okButton = this.el.querySelector('button.ok');
this.attachDomEvents();
}
PromptDialog.prototype = Object.create(Dialog.prototype);
PromptDialog.prototype.attachDomEvents = function() {
var _this = this;
this.okButton.addEventListener('click', function() {
_this.hide();
console.log('Ok clicked!!');
});
};
PromptDialog.prototype.show = function(message) {
this.messageEl.innerHTML = '' + message;
this.el.className = '';
return this;
};
PromptDialog.prototype.hide = function() {
this.el.className = 'hidden';
return this;
};
var prompt = new PromptDialog();
const getBall = (x, y, dx, dy, r, color) => ({x, y, dx, dy, r, color});
const drawBall = (ball, ctx) => {
ctx.beginPath();
ctx.arc(ball.x, ball.y, ball.r, 0, Math.PI * 2, false);
ctx.fillStyle = ball.collider ? "red" : ball.color;
ctx.fill();
ctx.closePath();
}
const updatePos = (ball, containerR) => {
ball.x += ball.dx;
ball.y += ball.dy;
const dx = ball.x - containerR;
const dy = ball.y - containerR;
if (Math.sqrt(dx * dx + dy * dy) >= containerR - ball.r) {
const v = Math.sqrt(ball.dx * ball.dx + ball.dy * ball.dy);
const angleToCollisionPoint = Math.atan2(-dy, dx);
const oldAngle = Math.atan2(-ball.dy, ball.dx);
const newAngle = 2 * angleToCollisionPoint - oldAngle;
ball.dx = -v * Math.cos(newAngle);
ball.dy = v * Math.sin(newAngle);
}
}
function makeArea(domid, radius, ballsNumber) {
const ctx = document.getElementById(domid).getContext("2d");
const containerR = radius;
const size = radius * 2
ctx.canvas.width = ctx.canvas.height = size;
ctx.globalAlpha = 1;
let balls = [];
for(var i=0 ; i<ballsNumber ; ++i) {
const r = Math.random()*radius*0.5;
const t = Math.random()*Math.PI*2;
balls.push(getBall(radius + Math.cos(t)*r, radius + Math.sin(t)*r, 0.1, 0.1, 5, "Green"));
}
return {
ctx: ctx,
radius: radius,
balls: balls
}
}
const collides = (a, b) => (Math.hypot(Math.abs(a.x - b.x), Math.abs(a.y - b.y)) < (a.r + b.r));
const areas = [
makeArea("Canvas", 150, 10, true),
makeArea("Canvas1", 80, 4, false),
makeArea("Canvas2", 80, 4, false),
makeArea("Canvas3", 80, 4, false),
makeArea("Canvas4", 80, 4, false)
];
function engine() {
//console.clear(); // Clear console test messages
mydiv.textContent =" ";
areas.forEach((area) =>{
const ctx = area.ctx;
ctx.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height);
area.balls.forEach((a, ai) => {
a.collider = undefined;
area.balls.forEach((b, bi) => {
if (bi === ai) return; // Don't look at self
if (collides(a, b)) a.collider = b; // Store the colliding B ball
});
if (a.collider) { // If ball has a collider:
//mydiv.textContent = ("Alert");
//beep();
prompt.show('ALERT!!!!! Not Maintaining Distance')
.waitForUser()
.then(function(name) {
output.innerHTML = '' + name;
})
.catch(function(e) {
console.log('Unknown error', e);
})
.finally(function() {
prompt.hide();
});
//console.log(`${a.color[0]} → ← ${a.collider.color[0]}`);
}
updatePos(a, area.radius);
drawBall(a, ctx);
});
});
requestAnimationFrame(engine);
}
engine();
canvas {
background: #eee;
margin: 0 auto;
border-radius: 50%;
box-shadow: 0 0 0 4px #000;
}
.row {
display: flex;
}
.Row {
display: flex;
flex-direction: row;
margin-left: 40%;
margin-top: 8%;
float: right;
}
#Canvas1, #Canvas2, #Canvas3, #Canvas4 {
background: #eee;
border-radius: 50%;
border: solid 0px #000;
margin: 2px;
}
<div class="Row">
<div>
<canvas id="Canvas"></canvas>
</div>
<div>
<div class="row">
<canvas id="Canvas1"></canvas>
<span> xyz</span>
<canvas id="Canvas2"></canvas>
<span> xyz1</span>
</div>
<div class="row">
<canvas id="Canvas3"></canvas>
<span> xyz2</span>
<canvas id="Canvas4"></canvas>
<span>xyz3</span>
</div>
</div>
</div>
<div id="mydiv"></div>
<div id="dialog" class="hidden">
<div class="message"></div>
<div>
<button class="ok">OK</button>
</div>
</div>

Regarding your second question:
The <span>s are just children of .row, like the canvas is. You could "group" them with the canvas and make their position absolute:
/* important stuff: */
.group {
position: relative;
}
.group span {
position: absolute;
left: 0;
right: 0;
bottom: 5px;
text-align: center;
}
/* only for testing: */
#canvas1 {
background: #eee;
width: 100%;
height: 100%
}
.row {
width: 200px;
height: 200px;
display: flex;
}
<div class="row">
<div class="group">
<canvas id="canvas1"></canvas>
<span>xyz</span>
</div>
</div>
About the alert from the big circle:
If you're extending your forEach on all areas with a variable for the index ...
areas.forEach((area, areaindex) => {
... you could check for index zero later:
if (a.collider && areaindex == 0)

Tried making a button, that takes you to google page

i have a html script with button and onclick function script that should take me to google.com, but it doesn't seem to work. Been stuck with this for hours. Im also new to HTML.
Tried everything. Line 336 and 353 should be the needed content. And line 136 should be the button itself. I don't understand whats wrong. Anyone ever have had this issue?
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<link rel="shortcut icon" type="image/x-icon/text/javascript" href="https://static.codepen.io/assets/favicon/favicon-aec34940fbc1a6e787974dcd360f2c6b63348d4b1f4e06c77743096d55480f33.ico" />
<link rel="mask-icon" type="" href="https://static.codepen.io/assets/favicon/logo-pin-8f3771b1072e3c38bd662872f6b673a722f4b3ca2421637d5596661b4e2132cc.svg" color="#111" />
<title>SpyBanter - SpyBanter's Official WebSite</title>
<style type="text/css">
body {
overflow: hidden;
margin: 0;
}
body:before {
content: '';
background: #c4252a url(http://subtlepatterns2015.subtlepatterns.netdna-cdn.com/patterns/cheap_diagonal_fabric.png);
background-blend-mode: multiply;
mix-blend-mode: multiply;
position: absolute;
left: 0;
top: 0;
width: 100%;
height: 100%;
z-index: 10;
}
canvas {
opacity: 0;
transition: 1s opacity cubic-bezier(0.55, 0, 0.1, 1);
}
canvas.ready {
opacity: 0.4;
}
.intro {
position: absolute;
padding: 20px;
-webkit-transform: translate(-50%, -50%);
transform: translate(-50%, -50%);
left: 50%;
top: 50%;
text-align: center;
color: #fafafa;
z-index: 10;
width: 100%;
max-width: 700px;
font-family: "HelveticaNeue-Light", "Helvetica Neue Light", "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif;
text-shadow: 0px 5px 20px black;
}
.intro h1 {
font-size: 40px;
font-weight: 300;
letter-spacing: 2px;
}
.intro p {
letter-spacing: 1px;
line-height: 24px;
}
#btnclose {
background-color: indianred;
border-color: darkred;
}
}
#btnnup:hover, #btnsisu:hover, #btncmd:hover {
background-color: #3e8e41;
}
#btnnup:active, #btnsisu:active, #btncmd:active {
background-color: #3e8e41;
box-shadow: 0 5px #666;
transform: translateY(4px);
}
#btnsisu {
left: 108px;
top: 105px;
}
#btncmd {
left: -311px;
top: -88px;
}
#content {
width: 100%;
height: auto;
min-height: 580px;
}
</style>
<script>
window.console = window.console || function(t) {};
</script>
<script>
if (document.location.search.match(/type=embed/gi)) {
window.parent.postMessage("resize", "*");
}
</script>
</head>
<body translate="no">
<canvas id="canvas" data-image="http://unsplash.it/g/450/200/?random=1"></canvas>
<div class="intro">
<h1>Interactive mosaic background</h1>
<p>Had to do this effect in a recent project and wanted to share it with you :). To change the background, edit the data-image on the canvas tag. You can also change the magnet effect intensity by changing the magnet variable</p>
<button id="btncmd">Videos</button>
</div>
<script src="https://static.codepen.io/assets/common/stopExecutionOnTimeout-de7e2ef6bfefd24b79a3f68b414b87b8db5b08439cac3f1012092b2290c719cd.js"></script>
<script type="application/javascript">
(function () {
// Variables
var Photo, addListeners, canvas, createGrid, ctx, gridItem, grids, height, img, imgInfo, imgSrc, imgs, init, magnet, mouse, populateCanvas, render, resizeCanvas, rotateAndPaintImage, updateMouse, useGrid, width;
canvas = document.getElementById('canvas');
ctx = canvas.getContext('2d');
width = canvas.width = window.innerWidth;
height = canvas.height = window.innerHeight;
imgSrc = canvas.dataset.image;
img = new Image();
useGrid = true;
imgInfo = {};
imgs = [];
grids = [];
magnet = 2000;
mouse = {
x: 1,
y: 0 };
init = function () {
addListeners();
img.onload = function (e) {
var numberToShow;
// Check for firefox.
imgInfo.width = e.path ? e.path[0].width : e.target.width;
imgInfo.height = e.path ? e.path[0].height : e.target.height;
numberToShow = Math.ceil(window.innerWidth / imgInfo.width) * Math.ceil(window.innerHeight / imgInfo.height);
if (useGrid) {
createGrid();
}
populateCanvas(numberToShow * 4);
canvas.classList.add('ready');
return render();
};
return img.src = imgSrc;
};
addListeners = function () {
window.addEventListener('resize', resizeCanvas);
window.addEventListener('mousemove', updateMouse);
return window.addEventListener('touchmove', updateMouse);
};
updateMouse = function (e) {
mouse.x = e.clientX;
return mouse.y = e.clientY;
};
resizeCanvas = function () {
width = canvas.width = window.innerWidth;
return height = canvas.height = window.innerHeight;
};
populateCanvas = function (nb) {
var i, p, results;
i = 0;
results = [];
while (i <= nb) {
p = new Photo();
imgs.push(p);
results.push(i++);
}
return results;
};
createGrid = function () {
var c, grid, i, imgScale, item, j, k, l, r, ref, ref1, ref2, results, x, y;
imgScale = 0.5;
grid = {
row: Math.ceil(window.innerWidth / (imgInfo.width * imgScale)),
cols: Math.ceil(window.innerHeight / (imgInfo.height * imgScale)),
rowWidth: imgInfo.width * imgScale,
colHeight: imgInfo.height * imgScale };
for (r = j = 0, ref = grid.row; 0 <= ref ? j < ref : j > ref; r = 0 <= ref ? ++j : --j) {
x = r * grid.rowWidth;
for (c = k = 0, ref1 = grid.cols; 0 <= ref1 ? k < ref1 : k > ref1; c = 0 <= ref1 ? ++k : --k) {
y = c * grid.colHeight;
item = new gridItem(x, y, grid.rowWidth, grid.colHeight);
grids.push(item);
}
}
results = [];
for (i = l = 0, ref2 = grids.length; 0 <= ref2 ? l < ref2 : l > ref2; i = 0 <= ref2 ? ++l : --l) {
results.push(grids[i].draw());
}
return results;
};
gridItem = function (x = 0, y = 0, w, h) {
this.draw = function () {
ctx.drawImage(img, x, y, w, h);
};
};
Photo = function () {
var TO_RADIANS, finalX, finalY, forceX, forceY, h, r, seed, w, x, y;
seed = Math.random() * (2.5 - 0.7) + 0.7;
w = imgInfo.width / seed;
h = imgInfo.height / seed;
x = window.innerWidth * Math.random();
finalX = x;
y = window.innerHeight * Math.random();
finalY = y;
console.log(`INIT Y :: ${finalY} || INIT X :: ${finalX}`);
r = Math.random() * (180 - -180) + -180;
forceX = 0;
forceY = 0;
TO_RADIANS = Math.PI / 180;
this.update = function () {
var distance, dx, dy, powerX, powerY, x0, x1, y0, y1;
x0 = x;
y0 = y;
x1 = mouse.x;
y1 = mouse.y;
dx = x1 - x0;
dy = y1 - y0;
distance = Math.sqrt(dx * dx + dy * dy);
powerX = x0 - dx / distance * magnet / distance;
powerY = y0 - dy / distance * magnet / distance;
forceX = (forceX + (finalX - x0) / 2) / 2.1;
forceY = (forceY + (finalY - y0) / 2) / 2.2;
x = powerX + forceX;
y = powerY + forceY;
};
this.draw = function () {
return rotateAndPaintImage(ctx, img, r * TO_RADIANS, x, y, w / 2, h / 2, w, h);
};
};
rotateAndPaintImage = function (context, image, angle, positionX, positionY, axisX, axisY, widthX, widthY) {
context.translate(positionX, positionY);
context.rotate(angle);
context.drawImage(image, -axisX, -axisY, widthX, widthY);
context.rotate(-angle);
return context.translate(-positionX, -positionY);
};
render = function () {
var x, y;
x = 0;
y = 0;
ctx.clearRect(0, 0, width, height);
while (y < grids.length) {
grids[y].draw();
y++;
}
while (x < imgs.length) {
imgs[x].update();
imgs[x].draw();
x++;
}
return requestAnimationFrame(render);
};
init();
}).call(this);
cmd = function () {
window.location.href = "https://www.google.com/";
}
function cmd() {
window.location.href = "https://www.google.com/";
}
btnclose.onclick = cmd;
btnnup.onclick = cmd;
btncmd.onclick = cmd;
//# sourceURL=coffeescript
//# sourceURL=pen.js
</script>
<script type="application/javascript">
window.onload = function() {
main.style.opacity = "1";
}
function show(){
main.style.opacity = "1";
}
function close() {
main.style.opacity = "0";
$.post('http://tt_help/close', JSON.stringify({
}));
}
function cmd() {
window.location.href = "https://www.google.com/";
}
function sisukord() {
let id = $(this).attr('content');
console.log(id)
let docs = `https://docs.google.com/document/d/e/2PACX-1vSXxzowHucTNRBwduXT-pDoGQT4blGJhOvgnzIYmpEe2DwU4mimf84RZ8orvUGpm2vPsPDdkkVAnFkq/pub?embedded=true${id}`;
$('#main iframe').attr('src', docs);
}
window.addEventListener('message', function(event) {
if (event.data.type == "open") {
main.style.opacity = "1";
}
});
btnclose.onclick = cmd;
btncmd.onclick = cmd;
btnsisu.onclick = cmd;
</script>
</body>

If you're trying to make a button that takes you to google.com, I would advise you to use an a tag, not a button tag. The tag automatically links you to your desired destination when clicked.
Example:
Example
If you want the link to look like a button, then simply look at the css options. I would advise you to look here: https://www.w3schools.com/css/css_link.asp
a {
background-image:linear-gradient(to bottom, lightblue, aquamarine);
padding:5px;
text-decoration:none;
color:black;
padding-right:50px;
padding-left:50px;
margin-top: 50px;
margin-left: 50px;
display: inline-block;
font-size:25px;
border-radius:5px;
box-shadow: 1px 1px green;
}
Example
If you are determined to use a <button> tag, then all you need to do is within that button tag add an onclick attribute. So, you would change your code to <button id="btncmd" onclick="cmd()">Videos</button>.
Example of what you want:
function cmd() {
window.location.href = "https://www.example.com/"; // I'm using example but you can use google.
}
<button id="btncmd" onclick="cmd()">Videos</button>

You did not define btncmd. Adding this line to your code solves the problem:
var btncmd = document.getElementById("btncmd");

Tearable Cloth simulation works on Codepen but not locally

I am trying to include this Codepen into a basic website for school.
The issue is that the code with a few tweaks, will not load locally. I have even put my entire website into Codepen as a test and it worked.
It should just be the cloth simulation and nothing else.
Here is the HTML and CSS in its smallest form.
<!doctype html>
<html>
<head>
<style>
body {
background: #2F4F4F;
}
#c {
display: block;
margin: 20px auto 0;
}
</style>
<meta charset="utf-8">
<title>Test</title>
<script type="text/javascript" src="Website/JavaScript/ClothSimulation.js"></script>
</head>
<body>
<canvas id="c"></canvas>
<div id="top">
<a id="close"></a>
</div>
</body>
</html>
The JS is very big as it is a cloth simulation.
document.getElementById('close').onmousedown = function(e) {
e.preventDefault();
document.getElementById('info').style.display = 'none';
return false;
};
// settings
var physics_accuracy = 3,
mouse_influence = 20,
mouse_cut = 5,
gravity = 1200,
cloth_height = 30,
cloth_width = 50,
start_y = 20,
spacing = 7,
tear_distance = 60;
window.requestAnimFrame =
window.requestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.mozRequestAnimationFrame ||
window.oRequestAnimationFrame ||
window.msRequestAnimationFrame ||
function(callback) {
window.setTimeout(callback, 1000 / 60);
};
var canvas,
ctx,
cloth,
boundsx,
boundsy,
mouse = {
down: false,
button: 1,
x: 0,
y: 0,
px: 0,
py: 0
};
var Point = function(x, y) {
this.x = x;
this.y = y;
this.px = x;
this.py = y;
this.vx = 0;
this.vy = 0;
this.pin_x = null;
this.pin_y = null;
this.constraints = [];
};
Point.prototype.update = function(delta) {
if (mouse.down) {
var diff_x = this.x - mouse.x,
diff_y = this.y - mouse.y,
dist = Math.sqrt(diff_x * diff_x + diff_y * diff_y);
if (mouse.button == 1) {
if (dist < mouse_influence) {
this.px = this.x - (mouse.x - mouse.px) * 1.8;
this.py = this.y - (mouse.y - mouse.py) * 1.8;
}
} else if (dist < mouse_cut) this.constraints = [];
}
this.add_force(0, gravity);
delta *= delta;
nx = this.x + ((this.x - this.px) * .99) + ((this.vx / 2) * delta);
ny = this.y + ((this.y - this.py) * .99) + ((this.vy / 2) * delta);
this.px = this.x;
this.py = this.y;
this.x = nx;
this.y = ny;
this.vy = this.vx = 0
};
Point.prototype.draw = function() {
if (!this.constraints.length) return;
var i = this.constraints.length;
while (i--) this.constraints[i].draw();
};
Point.prototype.resolve_constraints = function() {
if (this.pin_x != null && this.pin_y != null) {
this.x = this.pin_x;
this.y = this.pin_y;
return;
}
var i = this.constraints.length;
while (i--) this.constraints[i].resolve();
this.x > boundsx ? this.x = 2 * boundsx - this.x : 1 > this.x && (this.x = 2 - this.x);
this.y < 1 ? this.y = 2 - this.y : this.y > boundsy && (this.y = 2 * boundsy - this.y);
};
Point.prototype.attach = function(point) {
this.constraints.push(
new Constraint(this, point)
);
};
Point.prototype.remove_constraint = function(constraint) {
this.constraints.splice(this.constraints.indexOf(constraint), 1);
};
Point.prototype.add_force = function(x, y) {
this.vx += x;
this.vy += y;
};
Point.prototype.pin = function(pinx, piny) {
this.pin_x = pinx;
this.pin_y = piny;
};
var Constraint = function(p1, p2) {
this.p1 = p1;
this.p2 = p2;
this.length = spacing;
};
Constraint.prototype.resolve = function() {
var diff_x = this.p1.x - this.p2.x,
diff_y = this.p1.y - this.p2.y,
dist = Math.sqrt(diff_x * diff_x + diff_y * diff_y),
diff = (this.length - dist) / dist;
if (dist > tear_distance) this.p1.remove_constraint(this);
var px = diff_x * diff * 0.5;
var py = diff_y * diff * 0.5;
this.p1.x += px;
this.p1.y += py;
this.p2.x -= px;
this.p2.y -= py;
};
Constraint.prototype.draw = function() {
ctx.moveTo(this.p1.x, this.p1.y);
ctx.lineTo(this.p2.x, this.p2.y);
};
var Cloth = function() {
this.points = [];
var start_x = canvas.width / 2 - cloth_width * spacing / 2;
for (var y = 0; y <= cloth_height; y++) {
for (var x = 0; x <= cloth_width; x++) {
var p = new Point(start_x + x * spacing, start_y + y * spacing);
x != 0 && p.attach(this.points[this.points.length - 1]);
y == 0 && p.pin(p.x, p.y);
y != 0 && p.attach(this.points[x + (y - 1) * (cloth_width + 1)])
this.points.push(p);
}
}
};
Cloth.prototype.update = function() {
var i = physics_accuracy;
while (i--) {
var p = this.points.length;
while (p--) this.points[p].resolve_constraints();
}
i = this.points.length;
while (i--) this.points[i].update(.016);
};
Cloth.prototype.draw = function() {
ctx.beginPath();
var i = cloth.points.length;
while (i--) cloth.points[i].draw();
ctx.stroke();
};
function update() {
ctx.clearRect(0, 0, canvas.width, canvas.height);
cloth.update();
cloth.draw();
requestAnimFrame(update);
}
function start() {
canvas.onmousedown = function(e) {
mouse.button = e.which;
mouse.px = mouse.x;
mouse.py = mouse.y;
var rect = canvas.getBoundingClientRect();
mouse.x = e.clientX - rect.left,
mouse.y = e.clientY - rect.top,
mouse.down = true;
e.preventDefault();
};
canvas.onmouseup = function(e) {
mouse.down = false;
e.preventDefault();
};
canvas.onmousemove = function(e) {
mouse.px = mouse.x;
mouse.py = mouse.y;
var rect = canvas.getBoundingClientRect();
mouse.x = e.clientX - rect.left,
mouse.y = e.clientY - rect.top,
e.preventDefault();
};
canvas.oncontextmenu = function(e) {
e.preventDefault();
};
boundsx = canvas.width - 1;
boundsy = canvas.height - 1;
ctx.strokeStyle = '#888';
cloth = new Cloth();
update();
}
window.onload = function() {
canvas = document.getElementById('c');
ctx = canvas.getContext('2d');
canvas.width = 560;
canvas.height = 350;
start();
};
Thank you for your help.

Assuming you have copy and pasted the website exactly how it is, you're missing opening and closing style tags around the CSS, and script tags around the JS.

Your code works, but you need this tags:
<script type="text/javascript"> YOUR JAVASCRIPT HERE </script>
<style type="text/css"> YOUR CSS HERE </style>
/*
Copyright (c) 2013 dissimulate at Codepen
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
document.getElementById('close').onmousedown = function(e) {
e.preventDefault();
document.getElementById('info').style.display = 'none';
return false;
};
// settings
var physics_accuracy = 3,
mouse_influence = 20,
mouse_cut = 5,
gravity = 1200,
cloth_height = 30,
cloth_width = 50,
start_y = 20,
spacing = 7,
tear_distance = 60;
window.requestAnimFrame =
window.requestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.mozRequestAnimationFrame ||
window.oRequestAnimationFrame ||
window.msRequestAnimationFrame ||
function(callback) {
window.setTimeout(callback, 1000 / 60);
};
var canvas,
ctx,
cloth,
boundsx,
boundsy,
mouse = {
down: false,
button: 1,
x: 0,
y: 0,
px: 0,
py: 0
};
var Point = function(x, y) {
this.x = x;
this.y = y;
this.px = x;
this.py = y;
this.vx = 0;
this.vy = 0;
this.pin_x = null;
this.pin_y = null;
this.constraints = [];
};
Point.prototype.update = function(delta) {
if (mouse.down) {
var diff_x = this.x - mouse.x,
diff_y = this.y - mouse.y,
dist = Math.sqrt(diff_x * diff_x + diff_y * diff_y);
if (mouse.button == 1) {
if (dist < mouse_influence) {
this.px = this.x - (mouse.x - mouse.px) * 1.8;
this.py = this.y - (mouse.y - mouse.py) * 1.8;
}
} else if (dist < mouse_cut) this.constraints = [];
}
this.add_force(0, gravity);
delta *= delta;
nx = this.x + ((this.x - this.px) * .99) + ((this.vx / 2) * delta);
ny = this.y + ((this.y - this.py) * .99) + ((this.vy / 2) * delta);
this.px = this.x;
this.py = this.y;
this.x = nx;
this.y = ny;
this.vy = this.vx = 0
};
Point.prototype.draw = function() {
if (!this.constraints.length) return;
var i = this.constraints.length;
while (i--) this.constraints[i].draw();
};
Point.prototype.resolve_constraints = function() {
if (this.pin_x != null && this.pin_y != null) {
this.x = this.pin_x;
this.y = this.pin_y;
return;
}
var i = this.constraints.length;
while (i--) this.constraints[i].resolve();
this.x > boundsx ? this.x = 2 * boundsx - this.x : 1 > this.x && (this.x = 2 - this.x);
this.y < 1 ? this.y = 2 - this.y : this.y > boundsy && (this.y = 2 * boundsy - this.y);
};
Point.prototype.attach = function(point) {
this.constraints.push(
new Constraint(this, point)
);
};
Point.prototype.remove_constraint = function(constraint) {
this.constraints.splice(this.constraints.indexOf(constraint), 1);
};
Point.prototype.add_force = function(x, y) {
this.vx += x;
this.vy += y;
};
Point.prototype.pin = function(pinx, piny) {
this.pin_x = pinx;
this.pin_y = piny;
};
var Constraint = function(p1, p2) {
this.p1 = p1;
this.p2 = p2;
this.length = spacing;
};
Constraint.prototype.resolve = function() {
var diff_x = this.p1.x - this.p2.x,
diff_y = this.p1.y - this.p2.y,
dist = Math.sqrt(diff_x * diff_x + diff_y * diff_y),
diff = (this.length - dist) / dist;
if (dist > tear_distance) this.p1.remove_constraint(this);
var px = diff_x * diff * 0.5;
var py = diff_y * diff * 0.5;
this.p1.x += px;
this.p1.y += py;
this.p2.x -= px;
this.p2.y -= py;
};
Constraint.prototype.draw = function() {
ctx.moveTo(this.p1.x, this.p1.y);
ctx.lineTo(this.p2.x, this.p2.y);
};
var Cloth = function() {
this.points = [];
var start_x = canvas.width / 2 - cloth_width * spacing / 2;
for (var y = 0; y <= cloth_height; y++) {
for (var x = 0; x <= cloth_width; x++) {
var p = new Point(start_x + x * spacing, start_y + y * spacing);
x != 0 && p.attach(this.points[this.points.length - 1]);
y == 0 && p.pin(p.x, p.y);
y != 0 && p.attach(this.points[x + (y - 1) * (cloth_width + 1)])
this.points.push(p);
}
}
};
Cloth.prototype.update = function() {
var i = physics_accuracy;
while (i--) {
var p = this.points.length;
while (p--) this.points[p].resolve_constraints();
}
i = this.points.length;
while (i--) this.points[i].update(.016);
};
Cloth.prototype.draw = function() {
ctx.beginPath();
var i = cloth.points.length;
while (i--) cloth.points[i].draw();
ctx.stroke();
};
function update() {
ctx.clearRect(0, 0, canvas.width, canvas.height);
cloth.update();
cloth.draw();
requestAnimFrame(update);
}
function start() {
canvas.onmousedown = function(e) {
mouse.button = e.which;
mouse.px = mouse.x;
mouse.py = mouse.y;
var rect = canvas.getBoundingClientRect();
mouse.x = e.clientX - rect.left,
mouse.y = e.clientY - rect.top,
mouse.down = true;
e.preventDefault();
};
canvas.onmouseup = function(e) {
mouse.down = false;
e.preventDefault();
};
canvas.onmousemove = function(e) {
mouse.px = mouse.x;
mouse.py = mouse.y;
var rect = canvas.getBoundingClientRect();
mouse.x = e.clientX - rect.left,
mouse.y = e.clientY - rect.top,
e.preventDefault();
};
canvas.oncontextmenu = function(e) {
e.preventDefault();
};
boundsx = canvas.width - 1;
boundsy = canvas.height - 1;
ctx.strokeStyle = '#888';
cloth = new Cloth();
update();
}
window.onload = function() {
canvas = document.getElementById('c');
ctx = canvas.getContext('2d');
canvas.width = 560;
canvas.height = 350;
start();
};
#charset "utf-8";
body {
line-height: 1.4;
font-size: 100%;
font-family: allerta;
margin-right: auto;
margin-left: auto;
margin-bottom: 0;
padding: 0;
color: #646464;
font-style: normal;
font-weight: 400;
background-color: #2F4F4F;
}
.center {
margin-bottom: 40px;
display: flex;
justify-content: center;
height: 50px;
padding-top: 132px;
}
.button-wrap {
margin-right: 25px;
top: 133px;
margin-top: -139px;
}
.rad-button {
white-space: nowrap;
border-radius: 4px;
position: relative;
border: none;
background: none;
font-family: allerta;
width: 200px;
height: 200px;
cursor: pointer;
transition: 0.1s all ease;
font-size: 32px;
font-weight: 400;
color: #777;
border-bottom: 1px solid #ccc;
box-shadow: 0px 0px 0px 0px #B8B8B8;
font-style: normal;
}
.rad-button.good {
background-color: #FAEBD7;
color: #2F4F4F;
border-bottom: 1px solid #759f87;
}
.rad-button.good:hover {
background-color: #caf3db;
top: -2px;
border-bottom: 4px solid #759f87;
box-shadow: 0px 2px 5px 0px rgba(0, 0, 0, 0.25);
}
.rad-button.good:active {
top: 0px;
border: 1px solid #759f87;
background-color: #a5dabc;
box-shadow: inset 0px 0px 4px rgba(0, 0, 0, 0.25);
}
.fade {
margin-top: 25px;
font-size: 21px;
text-align: center;
-webkit-animation: fadein 2s; /* Safari, Chrome and Opera > 12.1 */
-moz-animation: fadein 2s; /* Firefox < 16 */
-ms-animation: fadein 2s; /* Internet Explorer */
-o-animation: fadein 2s; /* Opera < 12.1 */
animation: fadein 2s;
}
#keyframes fadein {
from { opacity: 0; }
to { opacity: 1; }
}
/* Firefox < 16 */
#-moz-keyframes fadein {
from { opacity: 0; }
to { opacity: 1; }
}
/* Safari, Chrome and Opera > 12.1 */
#-webkit-keyframes fadein {
from { opacity: 0; }
to { opacity: 1; }
}
/* Internet Explorer */
#-ms-keyframes fadein {
from { opacity: 0; }
to { opacity: 1; }
}
/* Opera < 12.1 */
#-o-keyframes fadein {
from { opacity: 0; }
to { opacity: 1; }
}
ul, ol, dl {
padding: 0;
margin: 0;
}
h1 {
font-size: 200%;
color: #FAEBD7;
font-weight: 400;
font-family: allerta;
font-style: normal;
text-align: center;
margin-left: -26px;
}
h2{
display: table-cell;
text-align: center;
vertical-align: middle;
color: #2F4F4F;
text-shadow: 0px 0px;
font-size: x-large;
}
h3, h4, h5, h6, p {
margin-top: 0;
padding-right: 15px;
padding-left: 15px;
color: #FAEBD7;
font-family: allerta;
font-style: normal;
font-weight: 400;
}
a img {
border: none;
}
a:link {
color: #FAEBD7;
text-decoration: none;
font-family: allerta;
font-style: normal;
font-weight: 400;
}
a:visited {
color: #6E6C64;
text-decoration: underline;
}
a:hover, a:active, a:focus {
text-decoration: none;
color: #CAF3DB;
font-family: allerta;
font-style: normal;
font-weight: 400;
text-align: center;
}
.container {
width: 960px;
background-color: #2F4F4F;
margin: 0 auto;
}
header {
background-color: #2F4F4F;
}
.sidebar1 {
float: right;
width: 180px;
background-color: #2F4F4F;
padding-bottom: 10px;
}
.content {
padding: 10px 0;
width: 780px;
display: inline;
top: 10px;
}
.content ul, .content ol {
padding: 0 15px 15px 40px;
}
nav ul{
list-style: none;
border-top: 1px solid #666;
margin-bottom: 15px;
}
nav li {
border-bottom: 1px solid #666;
}
nav a, nav a:visited {
padding: 5px 5px 5px 15px;
display: block;
width: 160px;
text-decoration: none;
background-color: #2F4F4F;
}
nav a:hover, nav a:active, nav a:focus {
background-color: #2F4F4F;
color: #FFF;
min-width: 0px;
top: 0px;
}
/* ~~ The footer ~~ */
footer {
padding: 10px 0;
background-color: #2F4F4F;
position: relative;
clear: both;
}
header, section, footer, aside, article, figure {
display: block;
color: #FAEBD7;
text-align: center;
left: -14px;
top: 134px;
}
#c {
display: block;
margin: 20px auto 0;
}
<html>
<head>
<meta charset="utf-8">
<title>Ewan Lyon Home</title>
<link href="../CSS/HTML5_twoColFixRtHdr.css" rel="stylesheet" type="text/css"><!--[if lt IE 9]>
<script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<!--The following script tag downloads a font from the Adobe Edge Web Fonts server for use within the web page. We recommend that you do not modify it.-->
<script>var __adobewebfontsappname__="dreamweaver"</script>
<script src="http://use.edgefonts.net/allerta:n4:default.js" type="text/javascript"></script>
</head>
<body>
<div class="container">
<article class="content">
<h1>Ewan Lyon</h1>
<div class = "center">
<div class = "button-wrap">
<button class = "rad-button good flat">Photoshop</button>
</div>
<div class = "button-wrap">
<a href="Illustrator.html">
<button class = "rad-button good flat">Illustrator</button>
</a>
</div>
</div>
<div class = "center">
<div class = "button-wrap">
<button class = "rad-button good flat">About Me</button>
</div>
<div class = "button-wrap">
<button class = "rad-button good flat">RICE</button>
</div>
</div>
<script type="text/javascript" src="../JavaScript/ClothSimulation.js"></script>
<canvas id="c"></canvas>
<div id="top">
<a id="close"></a>
</div>
<footer>
<a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/"><img alt="Creative Commons License" style="border-width:0" src="https://i.creativecommons.org/l/by-nc-sa/4.0/80x15.png" /></a><br />Ewan Lyon
</footer>
</article>
</div>
</body>
</html>