• css3 点击爆炸下落


    一个代码简洁,效果明显的jquery+css3特效
    点击div块状,会自动破碎并散落到网页底部
    效果预览:http://www.huiyi8.com/css3/
     
     
    $(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) {
             
                $('<div class="clipped" style="clip: rect('+y+'px, '+(z+width)+'px, '+(y+height)+'px, '+z+'px)">'+html+'</div>').appendTo($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({
                        'transform' : 'scale('+randScale+') skew('+randDeg+'deg) rotateZ('+randDeg2+'deg)',
                        'background' : newColor
                    });
                      
                    // 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);
    });
     
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  • 原文地址:https://www.cnblogs.com/lhrs/p/4121124.html
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