doodle3d-client/js/utils.js

40 lines
1.3 KiB
JavaScript

/*
* This file is part of the Doodle3D project (http://doodle3d.com).
*
* Copyright (c) 2013, Doodle3D
* This software is licensed under the terms of the GNU GPL v2 or later.
* See file LICENSE.txt or visit http://www.gnu.org/licenses/gpl.html for full license details.
*/
// http://stackoverflow.com/questions/1403888/get-url-parameter-with-jquery
function getURLParameter(name) {
return decodeURI(
(new RegExp('[&?]'+name + '=' + '(.+?)(&|$)').exec(location.search)||[,null])[1]
);
}
// returns true for all smartphones and tablets
function isMobileDevice() {
return /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini|Windows Mobile/i.test(navigator.userAgent);
}
// returns true for smartphones (Android will be a bit dodgy (tablet or phone, all depends on pixels vs devicePixelRatio...)
function isSmartphone() {
var returnBool = false;
if( /Android/i.test(navigator.userAgent) && window.devicePixelRatio > 1) {
var w = $(window).width() / window.devicePixelRatio;
console.log("Android device >> ratio'd width: " + w);
if (w < 480) {
returnBool = true;
}
} else {
returnBool = /Android|webOS|iPhone|iPod|BlackBerry|IEMobile|Opera Mini|Windows Mobile/i.test(navigator.userAgent)
}
return returnBool;
}
function distance(x1, y1, x2, y2) {
return Math.sqrt((x2-x1)*(x2-x1)+(y2-y1)*(y2-y1));
}