82 lines
2.1 KiB
JavaScript
82 lines
2.1 KiB
JavaScript
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/*
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* Sakura Misaki JavaScript
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*/
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// Get or set cookies
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function cookieData(action, name, data) {
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switch(action) {
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case 'get':
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return (result = new RegExp('(^|; )' + encodeURIComponent(name) + '=([^;]*)').exec(document.cookie)) ? result[2] : '';
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case 'set':
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document.cookie = name + '=' + data;
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return null;
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default:
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return null;
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}
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}
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// Initialising the element parallax functionality
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function initialiseParallax(id) {
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// Assign the element to a variable
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var parallax = document.getElementById(id);
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// Set proper position values
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parallax.style.top = '-2.5px';
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parallax.style.bottom = '-2.5px';
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parallax.style.left = '-2.5px';
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parallax.style.right = '-2.5px';
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// Add the event listener to the body element
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document.addEventListener("mousemove", function(e) {
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// Alter the position of the parallaxed element
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parallax.style.top = convertParallaxPositionValue(e.clientY, true, false) + 'px';
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parallax.style.bottom = convertParallaxPositionValue(e.clientY, true, true) + 'px';
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parallax.style.left = convertParallaxPositionValue(e.clientX, false, false) + 'px';
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parallax.style.right = convertParallaxPositionValue(e.clientX, false, true) + 'px';
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});
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}
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// Converting the position value of the mouseover to a pixel value
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function convertParallaxPositionValue(pos, dir, neg) {
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// Get the body element
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var body = document.getElementsByTagName('body')[0];
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// Get percentage of current position
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var position = (pos / (dir ? body.clientHeight : body.clientWidth)) * 100;
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// If someone decided to fuck with the inputs reset it to 0%
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if(position < 0 || position > 100) {
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position = 0;
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}
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// Do the first maths
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position = (position / (dir ? 25 : 20)) - 2.5;
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// If the negative flag is set inverse the number
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if(neg) {
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position = -position;
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}
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// Subtract another 2.5 to make the element not go all over the place
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position = position - 2.5;
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// Return the proper position value
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return position;
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}
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