Important: All scripts hosted on widcraft.googlecode.com don't work anymore because Google has blocked that SVN repository.
So today we're gonna do this amazing HTML 5 Shattering Text Effect with JavaScript and this script doesn't contains jquery or mootolls only JavaScript. Let's get started with basic HTML markup:
<canvas id="canvas"></canvas>
After adding above html we will add some css to make it better:
body {
margin: 0;
padding: 0;
overflow: hidden;
}
#canvas {
background: black;
}
Now finally it's time for us to add some JavaScript:
window.requestAnimFrame = (function(){
return window.requestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.mozRequestAnimationFrame ||
window.oRequestAnimationFrame ||
window.msRequestAnimationFrame ||
function( callback ){
window.setTimeout(callback, 1000 / 60);
};
})();
var canvas = document.getElementById("canvas"),
ctx = canvas.getContext("2d"),
keyword = "BWidgets.com",
imageData,
density = 3,
mouse = {},
hovered = false,
colors = ["0,120,232", "8,200,255", "30,140,255"],
minDist = 20,
bounceFactor = 0.7;
var W = window.innerWidth,
H = window.innerHeight;
canvas.width = W;
canvas.height = H;
document.addEventListener("mousemove", function(e) {
mouse.x = e.pageX;
mouse.y = e.pageY;
}, false);
// Particle Object
var Particle = function() {
this.w = Math.random() * 10.5;
this.h = Math.random() * 10.5;
this.x = -W;
this.y = -H;
this.free = false;
this.vy = -5 + parseInt(Math.random() * 10) / 2;
this.vx = -4 + parseInt(Math.random() * 8);
// Color
this.a = Math.random();
this.color = colors[parseInt(Math.random()*colors.length)];
this.setPosition = function(x, y) {
this.x = x;
this.y = y;
};
this.draw = function() {
ctx.fillStyle = "rgba("+this.color+","+this.a+")";
ctx.fillRect(this.x, this.y, this.w, this.h);
}
};
var particles = [];
// Draw the text
function drawText() {
ctx.clearRect(0, 0, W, H);
ctx.fillStyle = "#000000";
ctx.font = "100px 'Arial', sans-serif";
ctx.textAlign = "center";
ctx.fillText(keyword, W/2, H/2);
}
// Clear the canvas
function clear() {
ctx.clearRect(0, 0, W, H);
}
// Get pixel positions
function positionParticles() {
// Get the data
imageData = ctx.getImageData(0, 0, W, W);
data = imageData.data;
// Iterate each row and column
for (var i = 0; i < imageData.height; i += density) {
for (var j = 0; j < imageData.width; j += density) {
// Get the color of the pixel
var color = data[((j * ( imageData.width * 4)) + (i * 4)) - 1];
// If the color is black, draw pixels
if (color == 255) {
particles.push(new Particle());
particles[particles.length - 1].setPosition(i, j);
}
}
}
}
drawText();
positionParticles();
// Update
function update() {
clear();
for(i = 0; i < particles.length; i++) {
var p = particles[i];
if(mouse.x > p.x && mouse.x < p.x + p.w && mouse.y > p.y && mouse.y < p.y + p.h)
hovered = true;
if(hovered == true) {
var dist = Math.sqrt((p.x - mouse.x)*(p.x - mouse.x) + (p.y - mouse.y)*(p.y - mouse.y));
if(dist <= minDist)
p.free = true;
if(p.free == true) {
p.y += p.vy;
p.vy += 0.15;
p.x += p.vx;
// Collision Detection
if(p.y + p.h > H) {
p.y = H - p.h;
p.vy *= -bounceFactor;
// Friction applied when on the floor
if(p.vx > 0)
p.vx -= 0.1;
else
p.vx += 0.1;
}
if(p.x + p.w > W) {
p.x = W - p.w;
p.vx *= -bounceFactor;
}
if(p.x < 0) {
p.x = 0;
p.vx *= -0.5;
}
}
}
ctx.globalCompositeOperation = "lighter";
p.draw();
}
}
(function animloop(){
requestAnimFrame(animloop);
update();
})();
That's It......
Important: Check our new website TricksPanda.com for WordPress tutorials, plugins and more.
