代码][JavaScript]代码
$(document).ready(function() {
// Generate the clips. In this case I'm using 5 (or 25 pieces)
(genClips = function() {
// For easy use
$t = $('.clipped-box');
// Like I said, we're using 5!
var amount = 5;
// Get the width of each clipped rectangle.
var width = $t.width() / amount;
var height = $t.height() / amount;
// The total is the square of the amount
var totalSquares = Math.pow(amount, 2);
// The HTML of the content
var html = $t.find('.content').html();
var y = 0;
for(var z = 0; z <= (amount*width); z = z+width) {
$('<div class="clipped" >'+html+'</div>').appendTo($t);
if(z === (amount*width)-width) {
y = y + height;
z = -width;
}
if(y === (amount*height)) {
z = 9999999;
}
}
})();
// A quick random function for selecting random numbers
function rand(min, max) {
return Math.floor(Math.random() * (max - min + 1)) + min;
}
// A variable check for when the animation is mostly over
var first = false,
clicked = false;
// On click
$('.clipped-box div').on('click', function() {
if(clicked === false) {
clicked = true;
$('.clipped-box .content').css({'display' : 'none'});
// Apply to each clipped-box div.
$('.clipped-box div:not(.content)').each(function() {
// So the speed is a random speed between 90m/s and 120m/s. I know that seems like a lot
// But otherwise it seems too slow. That's due to how I handled the timeout.
var v = rand(120, 90),
angle = rand(80, 89), // The angle (the angle of projection) is a random number between 80 and 89 degrees.
theta = (angle * Math.PI) / 180, // Theta is the angle in radians
g = -9.8; // And gravity is -9.8. If you live on another planet feel free to change
// $(this) as self
var self = $(this);
// time is initially zero, also set some random variables. It's higher than the total time for the projectile motion
// because we want the squares to go off screen.
var t = 0,
z, r, nx, ny,
totalt = 15;
// The direction can either be left (1), right (-1) or center (0). This is the horizontal direction.
var negate = [1, -1, 0],
direction = negate[ Math.floor(Math.random() * negate.length) ];
// Some random numbers for altering the shapes position
var randDeg = rand(-5, 10),
randScale = rand(0.9, 1.1),
randDeg2 = rand(30, 5);
// Because box shadows are a bit laggy (by a bit I mean 'box shadows will not work on individual clipped divs at all')
// we're altering the background colour slightly manually, in order to give the divs differentiation when they are
// hovering around in the air.
var color = $(this).css('backgroundColor').split('rgb(')[1].split(')')[0].split(', '),
colorR = rand(-20, 20), // You might want to alter these manually if you change the color
colorGB = rand(-20, 20), // To get the right consistency.
newColor = 'rgb('+(parseFloat(color[0])+colorR)+', '+(parseFloat(color[1])+colorGB)+', '+(parseFloat(color[2])+colorGB)+')';
// And apply those
$(this).css({http://www.huiyi8.com/flashchajian/
'transform' : 'scale('+randScale+') skew('+randDeg+'deg) rotateZ('+randDeg2+'deg)',
'background' : newColorflash插件
});
// Set an interval
z = setInterval(function() {
// Horizontal speed is constant (no wind resistance on the internet)
var ux = ( Math.cos(theta) * v ) * direction;
// Vertical speed decreases as time increases before reaching 0 at its peak
var uy = ( Math.sin(theta) * v ) - ( (-g) * t);
// The horizontal position
nx = (ux * t);
// s = ut + 0.5at^2
ny = (uy * t) + (0.5 * (g) * Math.pow(t, 2));
// Apply the positions
$(self).css({'bottom' : (ny)+'px', 'left' : (nx)+'px'});
// Increase the time by 0.10
t = t + 0.10;
// If the time is greater than the total time clear the interval
if(t > totalt) {
clicked = false;
first = true;
$('.clipped-box').css({'top' : '-1000px', 'transition' : 'none'});
$(self).css({'left' : '0', 'bottom' : '0', 'opacity' : '1', 'transition' : 'none', 'transform' : 'none'});
// Finally clear the interval
clearInterval(z);
}
}, 10); // Run this interval every 10ms. Changing this will change the pace of the animation
});
}
});
r = setInterval(function() {
// This is a bit rough but it does the job
if(first === true) {
// I've just put this in so the deleted box will come down again after its been clicked.
// That way you can keep pressing delete.
$('.clipped-box').css({'top' : '0', 'transition' : ''});
$('.clipped-box div').css({'opacity' : '1', 'transition' : '', 'background-color' : ''});
$('.content').css({'display' : 'block'});
first = false;
}
}, 300);
});