程序员用代码来庆祝相恋一周年纪念日

/*
网上发现了一个某程序员写给女友的清新页面
项目主页：https://github.com/hackerzhou/Love
*/
// variables
var $window = $(window), gardenCtx, gardenCanvas, $garden, garden;
var clientWidth = $(window).width();
var clientHeight = $(window).height();
 
$(function () {
    // setup garden
    $loveHeart = $("#loveHeart");
    var offsetX = $loveHeart.width() / 2;
    var offsetY = $loveHeart.height() / 2 - 55;
    $garden = $("#garden");
    gardenCanvas = $garden[0];
    gardenCanvas.width = $("#loveHeart").width();
    gardenCanvas.height = $("#loveHeart").height()
    gardenCtx = gardenCanvas.getContext("2d");
    gardenCtx.globalCompositeOperation = "lighter";
    garden = new Garden(gardenCtx, gardenCanvas);
     
    $("#content").css("width", $loveHeart.width() + $("#code").width());
    $("#content").css("height", Math.max($loveHeart.height(), $("#code").height()));
    $("#content").css("margin-top", Math.max(($window.height() - $("#content").height()) / 2, 10));
    $("#content").css("margin-left", Math.max(($window.width() - $("#content").width()) / 2, 10));
 
    // renderLoop
    setInterval(function () {
        garden.render();
    }, Garden.options.growSpeed);
});
 
$(window).resize(function() {
    var newWidth = $(window).width();
    var newHeight = $(window).height();
    if (newWidth != clientWidth && newHeight != clientHeight) {
        location.replace(location);
    }
});
 
function getHeartPoint(angle) {
    var t = angle / Math.PI;
    var x = 19.5 * (16 * Math.pow(Math.sin(t), 3));
    var y = - 20 * (13 * Math.cos(t) - 5 * Math.cos(2 * t) - 2 * Math.cos(3 * t) - Math.cos(4 * t));
    return new Array(offsetX + x, offsetY + y);
}
 
function startHeartAnimation() {
    var interval = 50;
    var angle = 10;
    var heart = new Array();
    var animationTimer = setInterval(function () {
        var bloom = getHeartPoint(angle);
        var draw = true;
        for (var i = 0; i < heart.length; i++) {
            var p = heart[i];
            var distance = Math.sqrt(Math.pow(p[0] - bloom[0], 2) + Math.pow(p[1] - bloom[1], 2));
            if (distance < Garden.options.bloomRadius.max * 1.3) {
                draw = false;
                break;
            }
        }
        if (draw) {
            heart.push(bloom);
            garden.createRandomBloom(bloom[0], bloom[1]);
        }
        if (angle >= 30) {
            clearInterval(animationTimer);
            showMessages();
        } else {
            angle += 0.2;
        }
    }, interval);
}
 
(function($) {
    $.fn.typewriter = function() {
        this.each(function() {
            var $ele = $(this), str = $ele.html(), progress = 0;
            $ele.html('');
            var timer = setInterval(function() {
                var current = str.substr(progress, 1);
                if (current == '<') {
                    progress = str.indexOf('>', progress) + 1;
                } else {
                    progress++;
                }
                $ele.html(str.substring(0, progress) + (progress & 1 ? '_' : ''));
                if (progress >= str.length) {
                    clearInterval(timer);
                }
            }, 75);
        });
        return this;
    };
})(jQuery);
 
function timeElapse(date){
    var current = Date();
    var seconds = (Date.parse(current) - Date.parse(date)) / 1000;
    var days = Math.floor(seconds / (3600 * 24));
    seconds = seconds % (3600 * 24);
    var hours = Math.floor(seconds / 3600);
    if (hours < 10) {
        hours = "0" + hours;
    }
    seconds = seconds % 3600;
    var minutes = Math.floor(seconds / 60);
    if (minutes < 10) {
        minutes = "0" + minutes;
    }
    seconds = seconds % 60;
    if (seconds < 10) {
        seconds = "0" + seconds;
    }
    var result = "<span class=\"digit\">" + days + "</span> days <span class=\"digit\">" + hours + "</span> hours <span class=\"digit\">" + minutes + "</span> minutes <span class=\"digit\">" + seconds + "</span> seconds";
    $("#elapseClock").html(result);
}
 
function showMessages() {
    adjustWordsPosition();
    $('#messages').fadeIn(5000, function() {
        showLoveU();
    });
}
 
function adjustWordsPosition() {
    $('#words').css("position", "absolute");
    $('#words').css("top", $("#garden").position().top + 195);
    $('#words').css("left", $("#garden").position().left + 70);
}
 
function adjustCodePosition() {
    $('#code').css("margin-top", ($("#garden").height() - $("#code").height()) / 2);
}
 
function showLoveU() {
    $('#loveu').fadeIn(3000);
}

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