https://orgaos-portugal.net/calcudoku-html5-game/js/plugins.js

1// Avoid `console` errors in browsers that lack a console.
2(function() {
3    var method;
4    var noop = function () {};
5    var methods = [
6        'assert', 'clear', 'count', 'debug', 'dir', 'dirxml', 'error',
7        'exception', 'group', 'groupCollapsed', 'groupEnd', 'info', 'log',
8        'markTimeline', 'profile', 'profileEnd', 'table', 'time', 'timeEnd',
9        'timeStamp', 'trace', 'warn'
10    ];
11    var length = methods.length;
12    var console = (window.console = window.console || {});
13
14    while (length--) {
15        method = methods[length];
16        // Only stub undefined methods.
17        if (!console[method]) {
18            console[method] = noop;
19        }
20    }
21}());
22
23// Place any jQuery/helper plugins in here.
24function checkContentHeight(target){
25	var stageHeight=$( window ).height();
26	var newHeight = (stageHeight/2)-(target.height()/2);
27	return newHeight;
28}
29
30function checkContentWidth(target){
31	var stageWidth=$( window ).width();
32	var newWidth = (stageWidth/2)-(target.width()/2);
33	return newWidth;
34}
35
36function getDeviceVer() {
37	var ua = navigator.userAgent;
38	var uaindex;
39	
40	// determine OS
41	if ( ua.match(/(iPad|iPhone|iPod touch)/) ){
42		userOS = 'iOS';
43		uaindex = ua.indexOf( 'OS ' );
44	}else if ( ua.match(/Android/) ){
45		userOS = 'Android';
46		uaindex = ua.indexOf( 'Android ' );
47	}else{
48		userOS = 'unknown';
49	}
50	
51	// determine version
52	if ( userOS === 'iOS' && uaindex > -1 ){
53		userOSver = ua.substr( uaindex + 3, 3 ).replace( '_', '.' );
54	}else if ( userOS === 'Android'  &&  uaindex > -1 ){
55		userOSver = ua.substr( uaindex + 8, 3 );
56	}else{
57		userOSver = 'unknown';
58	}
59	return Number(userOSver)
60}
61
62function shuffle(array) {
63	var currentIndex = array.length
64	, temporaryValue
65	, randomIndex
66	;
67	
68	// While there remain elements to shuffle...
69	while (0 !== currentIndex) {
70		// Pick a remaining element...
71		randomIndex = Math.floor(Math.random() * currentIndex);
72		currentIndex -= 1;
73		
74		// And swap it with the current element.
75		temporaryValue = array[currentIndex];
76		array[currentIndex] = array[randomIndex];
77		array[randomIndex] = temporaryValue;
78	}
79	
80	return array;
81}
82
83function unique(list) {
84    var result = [];
85    $.each(list, function(i, e) {
86        if ($.inArray(e, result) == -1) result.push(e);
87    });
88    return result;
89}
90
91function randomBoolean(){
92    return Math.random() < 0.5;
93}
94
95function sortOnObject(array, object) {
96	array.sort(function(a, b){
97		var a1= a[object], b1= b[object];
98		if(a1== b1) return 0;
99		return a1> b1? 1: -1;
100	});
101	
102	return array;
103}
104
105function countDecimalDigits(number){
106	var char_array = number.toString().split("");
107	var not_decimal = char_array.lastIndexOf(".");
108	return (not_decimal<0)?0:char_array.length - not_decimal;
109}
110
111
112function getCenterPosition(startX, startY, endX, endY) {
113	var position = {x:0, y:0};
114    position.x=(startX+endX)/2;
115    position.y=(startY+endY)/2;
116	
117	return position;
118}
119
120Array.prototype.swap = function (x,y) {
121  var b = this[x];
122  this[x] = this[y];
123  this[y] = b;
124  return this;
125}
126
127Array.prototype.insert = function ( index, item ) {
128    this.splice( index, 0, item );
129};