I have a copy of bubbles.js uploaded to my rental server and have made only one tiny, tiny change which should still function, yet when I run from http://ift.tt/1WD8g4R calling the version at http://ift.tt/1MC7QWH the code does not function at all. However, the version on the Amazon CDN seems to work fine.
My HTML is as follows:
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript" src="//code.jquery.com/jquery-1.10.2.min.js"></script>
<script type="text/javascript" src="http://ift.tt/1dAoiYD"></script>
</head>
<body>
<canvas id="myCanvas"></canvas>
<script type="text/javascript" src="http://ift.tt/1MC7QWH"></script>
<script type="text/javascript" src="main.js"></script>
</body>
</html>
However, the default HTML:
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript" src="//code.jquery.com/jquery-1.10.2.min.js"></script>
<script type="text/javascript" src="http://ift.tt/1dAoiYD"></script>
</head>
<body>
<canvas id="myCanvas"></canvas>
<script type="text/javascript" src="http://ift.tt/1e7cYRO"></script>
<script type="text/javascript" src="main.js"></script>
</body>
</html>
seems to work without issue.
For convenience, the relevant Javascript is:
function Vector(x, y, z) {
this.x = x;
this.y = y;
this.z = z;
this.set = function (x, y) {
this.x = x;
this.y = y;
};
}
function PointCollection() {
this.mousePos = new Vector(0, 0);
this.pointCollectionX = 0;
this.pointCollectionY = 0;
this.points = [];
this.update = function () {
for (var i = 0; i < this.points.length; i++) {
var point = this.points[i];
var dx = this.mousePos.x - point.curPos.x;
var dy = this.mousePos.y - point.curPos.y;
var dd = (dx * dx) + (dy * dy);
var d = Math.sqrt(dd);
point.targetPos.x = d < 150 ? point.curPos.x - dx : point.originalPos.x;
point.targetPos.y = d < 150 ? point.curPos.y - dy : point.originalPos.y;
point.update();
}
};
this.shake = function () {
var randomNum = Math.floor(Math.random() * 5) - 2;
for (var i = 0; i < this.points.length; i++) {
var point = this.points[i];
var dx = this.mousePos.x - point.curPos.x;
var dy = this.mousePos.y - point.curPos.y;
var dd = (dx * dx) + (dy * dy);
var d = Math.sqrt(dd);
if (d < 50) {
this.pointCollectionX = Math.floor(Math.random() * 9) - 2;
this.pointCollectionY = Math.floor(Math.random() * 5) - 2;
}
point.draw(bubbleShape, this.pointCollectionX, this.pointCollectionY);
}
};
this.draw = function (bubbleShape, reset) {
for (var i = 0; i < this.points.length; i++) {
var point = this.points[i];
if (point === null)
continue;
if (window.reset) {
this.pointCollectionX = 0;
this.pointCollectionY = 0;
this.mousePos = new Vector(0, 0);
}
point.draw(bubbleShape, this.pointCollectionX, this.pointCollectionY, reset);
}
};
this.reset = function (bubbleShape) {};
}
function Point(x, y, z, size, color) {
this.curPos = new Vector(x, y, z);
this.color = color;
this.friction = document.Friction;
this.rotationForce = document.rotationForce;
this.springStrength = 0.1;
this.originalPos = new Vector(x, y, z);
this.radius = size;
this.size = size;
this.targetPos = new Vector(x, y, z);
this.velocity = new Vector(0.0, 0.0, 0.0);
this.update = function () {
var dx = this.targetPos.x - this.curPos.x;
var dy = this.targetPos.y - this.curPos.y;
// Orthogonal vector is [-dy,dx]
var ax = dx * this.springStrength - this.rotationForce * dy;
var ay = dy * this.springStrength + this.rotationForce * dx;
this.velocity.x += ax;
this.velocity.x *= this.friction;
this.curPos.x += this.velocity.x;
this.velocity.y += ay;
this.velocity.y *= this.friction;
this.curPos.y += this.velocity.y;
var dox = this.originalPos.x - this.curPos.x;
var doy = this.originalPos.y - this.curPos.y;
var dd = (dox * dox) + (doy * doy);
var d = Math.sqrt(dd);
this.targetPos.z = d / 100 + 1;
var dz = this.targetPos.z - this.curPos.z;
var az = dz * this.springStrength;
this.velocity.z += az;
this.velocity.z *= this.friction;
this.curPos.z += this.velocity.z;
this.radius = this.size * this.curPos.z;
if (this.radius < 1) this.radius = 1;
};
this.draw = function (bubbleShape, dx, dy) {
ctx.fillStyle = this.color;
if (bubbleShape == "square") {
ctx.beginPath();
ctx.fillRect(this.curPos.x + dx, this.curPos.y + dy, this.radius * 1.5, this.radius * 1.5);
} else {
ctx.beginPath();
ctx.arc(this.curPos.x + dx, this.curPos.y + dy, this.radius, 0, Math.PI * 2, true);
ctx.fill();
}
};
}
function makeColor(hslList, fade) {
var hue = hslList[0] /*- 17.0 * fade / 1000.0*/ ;
var sat = hslList[1] /*+ 81.0 * fade / 1000.0*/ ;
var lgt = hslList[2] /*+ 58.0 * fade / 1000.0*/ ;
return "hsl(" + hue + "," + sat + "%," + lgt + "%)";
}
function phraseToHex(phrase) {
var hexphrase = "";
for (var i = 0; i < phrase.length; i++) {
hexphrase += phrase.charCodeAt(i).toString(16);
}
return hexphrase;
}
function initEventListeners() {
$(window).bind('resize', updateCanvasDimensions).bind('mousemove', onMove);
canvas.ontouchmove = function (e) {
e.preventDefault();
onTouchMove(e);
};
canvas.ontouchstart = function (e) {
e.preventDefault();
};
}
function updateCanvasDimensions() {
canvas.attr({
height: 500,
width: 1000
});
canvasWidth = canvas.width();
canvasHeight = canvas.height();
draw();
}
function onMove(e) {
if (pointCollection) {
pointCollection.mousePos.set(e.pageX - canvas.offset().left, e.pageY - canvas.offset().top);
}
}
function onTouchMove(e) {
if (pointCollection) {
pointCollection.mousePos.set(e.targetTouches[0].pageX - canvas.offset().left, e.targetTouches[0].pageY - canvas.offset().top);
}
}
function bounceName() {
shake();
setTimeout(bounceName, 30);
}
function bounceBubbles() {
draw();
update();
setTimeout(bounceBubbles, 30);
}
function draw(reset) {
var tmpCanvas = canvas.get(0);
if (tmpCanvas.getContext === null) {
return;
}
ctx = tmpCanvas.getContext('2d');
ctx.clearRect(0, 0, canvasWidth, canvasHeight);
bubbleShape = typeof bubbleShape !== 'undefined' ? bubbleShape : "circle";
if (pointCollection) {
pointCollection.draw(bubbleShape, reset);
}
}
function shake() {
var tmpCanvas = canvas.get(0);
if (tmpCanvas.getContext === null) {
return;
}
ctx = tmpCanvas.getContext('2d');
ctx.clearRect(0, 0, canvasWidth, canvasHeight);
bubbleShape = typeof bubbleShape !== 'undefined' ? bubbleShape : "circle";
if (pointCollection) {
pointCollection.shake(bubbleShape);
}
}
function update() {
if (pointCollection)
pointCollection.update();
}
function drawName(name, letterColors) {
updateCanvasDimensions();
var g = [];
var offset = 0;
function addLetter(cc_hex, ix, letterCols) {
if (typeof letterCols !== 'undefined') {
if (Object.prototype.toString.call(letterCols) === '[object Array]' && Object.prototype.toString.call(letterCols[0]) === '[object Array]') {
letterColors = letterCols;
}
if (Object.prototype.toString.call(letterCols) === '[object Array]' && typeof letterCols[0] === "number") {
letterColors = [letterCols];
}
} else {
// if undefined set black
letterColors = [[0, 0, 27]];
}
if (document.alphabet.hasOwnProperty(cc_hex)) {
var chr_data = document.alphabet[cc_hex].P;
var bc = letterColors[ix % letterColors.length];
for (var i = 0; i < chr_data.length; ++i) {
point = chr_data[i];
g.push(new Point(point[0] + offset,
point[1],
0.0,
point[2],
makeColor(bc, point[3])));
}
offset += document.alphabet[cc_hex].W;
}
}
var hexphrase = phraseToHex(name);
var col_ix = -1;
for (var i = 0; i < hexphrase.length; i += 2) {
var cc_hex = "A" + hexphrase.charAt(i) + hexphrase.charAt(i + 1);
if (cc_hex != "A20") {
col_ix++;
}
addLetter(cc_hex, col_ix, letterColors);
}
for (var j = 0; j < g.length; j++) {
g[j].curPos.x = (canvasWidth / 2 - offset / 2) + g[j].curPos.x;
g[j].curPos.y = (canvasHeight / 2 - 105) + g[j].curPos.y;
g[j].originalPos.x = (canvasWidth / 2 - offset / 2) + g[j].originalPos.x;
g[j].originalPos.y = (canvasHeight / 2 - 105) + g[j].originalPos.y;
}
pointCollection = new PointCollection();
pointCollection.points = g;
initEventListeners();
}
window.reset = false;
$(window).mouseleave(function () {
window.reset = true;
});
$(window).mouseenter(function () {
window.reset = false;
});
var canvas = $("#myCanvas");
var canvasHeight;
var canvasWidth;
var ctx;
var pointCollection;
document.rotationForce = 0.0;
document.Friction = 0.85;
var white = [0, 0, 100];
var black = [0, 0, 27];
var red = [0, 100, 63];
var orange = [40, 100, 60];
var green = [75, 100, 40];
var blue = [196, 77, 55];
var purple = [280, 50, 60];
setTimeout(updateCanvasDimensions, 30);
A cod_ae_cademy person said the problem might be the tiny difference in the JS or something to do with SSL certificates might be plausible too.
The only Javascript line changed is:
this.pointCollectionX = Math.floor(Math.random() * 9) - 2;
which I changed from the original bubbles.js line:
this.pointCollectionX = Math.floor(Math.random() * 3) - 2;
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