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  • Most efficient way to save tile data of an isometric game

    - by Harmen
    Hello, I'm working on an isometric game for fast browsers that support <canvas>, which is great fun. To save information of each tile, I use a two-dimensional array which contains numbers representing a tile ID, like: var level = [[1, 1, 1, 2, 1, 0], [0, 1, 1, 2, 0, 1], [0, 1, 1, 2, 1, 1]]; var tiles = [ {name: 'grass', color: 'green'}, {name: 'water', color: 'blue'}, {name: 'forest', color: 'ForestGreen'} ]; So far it works great, but now I want to work with heights and slopes like in this picture: For each tile I need to save it's tile ID, height and information about which corners are turned upward. I came up with a simple idea about a bitwise representation of all four corners, like this: 1011 // top, bottom and left corner turned up My question is: what is the most efficient way to save these three values for each cell? Is it possible to save these three values as one integer?

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  • Rotate a feature Image in Open Layers

    - by Ozaki
    I have an open layers map. It adds and removes my "imageFeature" every 10secs or so. I have a JSON feed that gives me the rotation that I need, I have a request to get that rotation and set it as a variable of rotationv. Everything works but the fact when the image is recreated it does not update the rotation. My code is as follows: JSON request: var rotationv = (function () { rotationv = null; $.ajax({ 'async': false, 'global': true, 'url': urldefault, 'dataType': "json", 'success': function (data) { rotationv = data.rotation; } }); return rotationv })(); Creating image feature: imageFeature = new OpenLayers.Feature.Vector( new OpenLayers.Geometry.Point(mylon, mylat), { rotation: rotationv } ); The image is set in the styling elsewhere. Why does this not rotate my image?

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  • Use queried json data in a function

    - by SztupY
    I have a code similar to this: $.ajax({ success: function(data) { text = ''; for (var i = 0; i< data.length; i++) { text = text + '<a href="#" id="Data_'+ i +'">' + data[i].Name + "</a><br />"; } $("#SomeId").html(text); for (var i = 0; i< data.length; i++) { $("#Data_"+i).click(function() { alert(data[i]); RunFunction(data[i]); return false; }); } } }); This gets an array of some data in json format, then iterates through this array generating a link for each entry. Now I want to add a function for each link that will run a function that does something with this data. The problem is that the data seems to be unavailable after the ajax success function is called (although I thought that they behave like closures). What is the best way to use the queried json data later on? (I think setting it as a global variable would do the job, but I want to avoid that, mainly because this ajax request might be called multiple times) Thanks.

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  • jQuery tools tabs fade effect

    - by kielie
    Hi guys, I used jQuery tools to create a tabs setup, and I would like to incorporate the fade effect, but when I try to do so, it bombs out, here is my code: $(function() { $("#flowtabs").tabs("#flowpanes > div", { history: true, effect: 'fade' }); }); I am assuming that it's because I am also enabling the tabs history? I am kinda new to all of this, so please be patient! :-) Thanx in advance!

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  • Using Regex to modify a String

    - by Christine Dehner
    I have a String that looks like this: Blah blah one.<tmp>[[url=b, link=c]]</tmp> Blah blah two. Also remember, blah blah three.<tmp>[[url=d, link=e]]</tmp> So I want to get b and d (the url attribute of tmp), and change the String so that it looks like this (the ex() function returns a String): Blah blah one.<tmp>[[url=b, link=c, add=ex(b)]]</tmp> Blah blah two. Also remember, blah blah three.<tmp>[[url=d, link=e, add=ex(d)]]</tmp> I need to use regex because no existing library parses this type of markup. I hope my explanation is clear. Thanks in advance!

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  • How to append a row to a TableViewSection in Titanium?

    - by Mike Trpcic
    I'm developing an iPhone application in Titanium, and need to append a row to a particular TableViewSection. I can't do this on page load, as it's done dynamically by the user throughout the lifecycle of the application. The documentation says that the TableViewSection has an add method which takes two arguments, but I can't make it work. Here's my existing code: for(var i = 0; i <= product_count; i++){ productsTableViewSection.add( Ti.UI.createTableViewRow({ title:'Testing...' }) ); } That is just passing one argument in, and that causes Titanium to die with an uncaught exception: 2010-04-26 16:57:18.056 MyApplication[72765:207] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Invalid update: invalid number of rows in section 2. The number of rows contained in an existing section after the update (2) must be equal to the number of rows contained in that section before the update (1), plus or minus the number of rows inserted or deleted from that section (0 inserted, 0 deleted).' 2010-04-26 16:57:18.056 MyApplication[72765:207] Stack: ( The exception looks like it did add the row, but it's not allowed to for some reason. Since the documentation says that TableViewSection takes in "view" and "row", I tried the following: for(var i = 0; i <= product_count; i++){ productsTableViewSection.add( Ti.UI.createView({}), Ti.UI.createTableViewRow({ title:'Testing...' }) ); } The above code doesn't throw the exception, but it gives a [WARN]: [WARN] Invalid type passed to function. expected: TiUIViewProxy, was: TiUITableViewRowProxy in -[TiUITableViewSectionProxy add:] (TiUITableViewSectionProxy.m:62) TableViewSections don't seem to support any methods like appendRow, or insertRow, so I don't know where else to go with this. I've looked through the KitchenSink app, but there are no examples that I could find of adding a row to a TableViewSection. Any help is appreciated.

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  • Non-graphical linearity estimation

    - by aL3xa
    In my previous post, I was looking for correlation ratio (η or η2) routines in R. I was surprised by the fact that no one uses η for linearity checking in the GLM procedures. Let's start form a simple example: how do you check linearity of bivariate correlation? Solely with scatterplot? There are several ways of doing this, one way is to compare linear and non-linear model R2, then to apply F test to seek for significant difference between them. Finally, the question is: How do you check linearity, the "non-grafical" way?

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  • AngularJS: download pdf file from the server

    - by Bartosz Bialecki
    I want to download a pdf file from the web server using $http. I use this code which works great, my file only is save as a html file, but when I open it it is opened as pdf but in the browser. I tested it on Chrome 36, Firefox 31 and Opera 23. This is my angularjs code (based on this code): UserService.downloadInvoice(hash).success(function (data, status, headers) { var filename, octetStreamMime = "application/octet-stream", contentType; // Get the headers headers = headers(); if (!filename) { filename = headers["x-filename"] || 'invoice.pdf'; } // Determine the content type from the header or default to "application/octet-stream" contentType = headers["content-type"] || octetStreamMime; if (navigator.msSaveBlob) { var blob = new Blob([data], { type: contentType }); navigator.msSaveBlob(blob, filename); } else { var urlCreator = window.URL || window.webkitURL || window.mozURL || window.msURL; if (urlCreator) { // Try to use a download link var link = document.createElement("a"); if ("download" in link) { // Prepare a blob URL var blob = new Blob([data], { type: contentType }); var url = urlCreator.createObjectURL(blob); $window.saveAs(blob, filename); return; link.setAttribute("href", url); link.setAttribute("download", filename); // Simulate clicking the download link var event = document.createEvent('MouseEvents'); event.initMouseEvent('click', true, true, window, 1, 0, 0, 0, 0, false, false, false, false, 0, null); link.dispatchEvent(event); } else { // Prepare a blob URL // Use application/octet-stream when using window.location to force download var blob = new Blob([data], { type: octetStreamMime }); var url = urlCreator.createObjectURL(blob); $window.location = url; } } } }).error(function (response) { $log.debug(response); }); On my server I use Laravel and this is my response: $headers = array( 'Content-Type' => $contentType, 'Content-Length' => strlen($data), 'Content-Disposition' => $contentDisposition ); return Response::make($data, 200, $headers); where $contentType is application/pdf and $contentDisposition is attachment; filename=" . basename($fileName) . '"' $filename - e.g. 59005-57123123.PDF My response headers: Cache-Control:no-cache Connection:Keep-Alive Content-Disposition:attachment; filename="159005-57123123.PDF" Content-Length:249403 Content-Type:application/pdf Date:Mon, 25 Aug 2014 15:56:43 GMT Keep-Alive:timeout=3, max=1 What am I doing wrong?

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  • Dynamically changing background color of specific text without changing other attributes

    - by gsingh2011
    I've written a chrome extension to find text on a page based on a regex query. When text is matched, I wrap the matched text in a <span> tag that has the class highlight where highlight only changes the background color to yellow. The issue is that sometimes there are already styles applied to <span> tags in a webpage. For example, the webpage might have this defined: span { font-size: 200%; } So when I insert my <span> tag in another <span> tag, the font-size is actually 400%. Is there an easy way for my code to just change certain properties of the text, like the background color, without applying the webpage's styles twice?

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  • Get Json and output to text file undecoded

    - by Gary
    Hi, I want to fetch json script and write it to a txt file undecoded, exactly how it was originally. I do have a script that I use that I am modifying but unsure what to commands to use. This script decodes, which is what I want to advoid. //Get Age list($bstat,$bage,$bdata) = explode("\t",check_file('./advise/roadsnow.txt',60*2+15)); //Test Age if ( $bage > $CacheMaxAge ) { //echo "The if statement evaluated to true so get new file and reset $bage"; $bage="0"; $file = file_get_contents('http://somesite.jsontxt'); $out = (json_decode($file)); $report = wordwrap($out->mainText, 100, "\n"); //$valid = $out->validTo; //write the data to a text file called roadsnow.txt $myFile = "./advise/roadsnow.txt"; $fh = fopen($myFile, 'w') or die("can't open file"); $stringData = $report; fwrite($fh, $stringData); } else { //echo the test evaluated to false; file is not stale so read local cache //print "we are at the read local cache"; $stringData = file_get_contents("./advise/roadsnow.txt"); } // if/else is done carry on with processing //Format file $data = $stringData

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  • How to post to a request using node.js

    - by Mr JSON
    I am trying to post some json to a URL. I saw various other questions about this on stackoverflow but none of them seemed to be clear or work. This is how far I got, I modified the example on the api docs: var http = require('http'); var google = http.createClient(80, 'server'); var request = google.request('POST', '/get_stuff', {'host': 'sever', 'content-type': 'application/json'}); request.write(JSON.stringify(some_json),encoding='utf8'); //possibly need to escape as well? request.end(); request.on('response', function (response) { console.log('STATUS: ' + response.statusCode); console.log('HEADERS: ' + JSON.stringify(response.headers)); response.setEncoding('utf8'); response.on('data', function (chunk) { console.log('BODY: ' + chunk); }); }); When I post this to the server I get an error telling me that it's not of the json format or that it's not utf8, which they should be. I tried to pull the request url but it is null. I am just starting with nodejs so please be nice.

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  • Jquery .each(): find elements containing input

    - by Poku
    Hey, I have a table which have a thead section and a tbody section. Im using jQuery each to find and count all THs in a table. This works fine. But at the same time i want to check if the TDs of the THs in the tbody is containing any input elements. Here is what i have so far: jQuery('#' + _target).each(function () { var $table = jQuery(this); var i = 0; jQuery('th', $table).each(function (column) { if (jQuery(this).find("input")) { dataTypes[i] = { "sSortDataType": "input" } } else { dataTypes[i] = { "sSortDataType": "html" } } i++; }); }); I hope this is enough information for you to help me out?

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  • iframe/lightbox refresh issues

    - by user96828
    Hi Please check out: http://gherkin.co.nz/refresh/ and click on the purple box that says 'Membership chest' You should then see some form fields in an iframe in the lightbox. If you click on the "GO" button, the page will change (currently Not found, which is fine for now). If you click the dark area to close the box, then click the purple card again - it will take you back to the not found page. When called, I want the content to always go back to the page specified in the iframe src, not the last page. Can it go back to the first specified page on this second click? Does that make sense? basically I want the iframe/lightbox to refresh its content each time it is called.

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  • Using Jquery to add items in Listbox from Textbox

    - by Pratik Gupta
    I am stuck somewhere using jquery to append the list box from a text box. here is my jquery $("#btnAddSvc").click(function () { var svc = $("#<%= txtServiceName.ClientID %>").val(); //Its Let you know the textbox's value svc.appendTo("#<%=lstSvcName.ClientID %>"); }); I am using asp.net (c#) to develop my code <asp:Button ID="btnAddSvc" runat="server" Text=">>" Font-Size="Medium" /> <asp:ListBox ID="lstSvcName" runat="server" SelectionMode="Multiple" ToolTip="Selected Service Names" Width="169px"></asp:ListBox> can someone please help as i am not able to get the values in list box.

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  • WCF webHttpBinding with jQuery AJAX - removing/working around same origin policy

    - by csauve
    So I'm trying to create a C# WCF REST service that is called by jQuery. I've discovered that jQuery requires that AJAX calls are made under the same origin policy. I have a few questions for how I might proceed. I am already aware of; 1. The hacky solution of JSONP with a server callback 2. The way too much server overhead of having a cross-domain proxy. 3. Using Flash in the browser to make the call and setting up crossdomain.xml at my WCF server root. I'd rather not use these because; 1. I don't want to use JSON, or at least I don't want to be restricted to using it 2. I would like to separate the server that serves static pages from the one that serves application state. 3. Flash in this day in age is out of the question. What I'm thinking: is there anything like Flash's crossdomain.xml file that works for jQuery? Is this "same-origin" policy a part of jQuery or is it a restriction in specific browsers? If it's just a part of jQuery, maybe I'll try digging in the code to work around it.

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  • What's the topmost iframe in the same domain?

    - by Jakob Stoeck
    How can I get the topmost iframe which is in the same domain, i.e. iframe level 1 example.org iframe level 2 example.org iframe level 2 example.org iframe level 3 example.org <-- would give me iframe level 1 iframe level 1 other-example.org iframe level 2 example.org iframe level 2 example.org iframe level 3 example.org <-- would give me iframe level 2 iframe level 1 other-example.org iframe level 2 example.org iframe level 2 example.org <-- would give me iframe level 2 (this) I need it because I have a website which should work in an iframe of another domain and stand-alone. In this website there are scripts which depend on window.top which shouldn't be top but the topmost iframe in the same domain.

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  • Ember nested route. Load more models

    - by user3568719
    JsBin http://jsbin.com/EveQOke/153/ I know how to load more then one model to a route, using Ember.RSVP.hash. (see Jsbin Children menu). I use dynamic part to access one elem from a collection children/1. But i cant load more models to a nested resource. In my example i want to populate all the toys for a select, not just list the toys of the child. I have tried to access the model of the route children App.ChildRoute = Ember.Route.extend({ model: function(param){ return Ember.RSVP.hash({ allToys: this.modelFor("children"), child:this.store.find('child', param.child_id) }); } }); and use its model's toy property (since there have already loaded all of the toys) child.hbs <h4>All avaiable toys</h4> <table> {{#each toy in model.allToys.toys}} <tr> <td>{{toy.name}}</td> </tr> {{/each}} </table>

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  • Superfish drag-drop problem

    - by HasanGursoy
    Hi, I've created a menu with jQuery superfish but I'm having problem when drag-drop on one of the top menu items. .sfHover class is added when pressed on a item and if this item is not clicked and dropped item remains with .sfHover class and because of this, background of the item is changed. How can I fix this problem? Here is the demo.

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  • NodeJS vm.runInThisContext() and lack of __filename

    - by rFactor
    Whenever I run vm.runInThisContext(code, filename), the ran code reports __filename and __dirname as undefined. This also leads to the situation that any fs.readFile and such calls will not work with relative paths. For example this does not work: fs.readFile('../file', fn); because it does not know where to relate the path to. Specifying the filename as /home/full/path/to/file.js for vm.runInThisContext function does not seem to matter at all. How can I make Node to understand the path to the file?

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  • What regular expression do I need to check for some non-latin characters?

    - by zeckdude
    I am checking a field if it is Latin Characters or not. var foreignCharacters = $("#foreign_characters").val(); var rlatins = /[\u0000-\u007f]/; if (rlatins.test(foreignCharacters)) { alert("This is Latin Characters"); } else { alert("This is non-latin Characters"); } This works well, but I would like to change it so when I enter any non-latin characters, such as chinese characters, along with a space(which is within that range I am using currently) it will still say it is non-latin characters. How can I change the regular expression I have to do that?

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  • XUL: fit all elements vertically in prefpane

    - by Michael
    here goes the XUL part of one of the preference panes. <prefpane id="alt-about" label="About" image="chrome://alt/skin/about.png"> <hbox> <vbox> <image id="armliveticker-about-logo" /> </vbox> <vbox> <description id="addonName">Bla bla bla, bla bla</description> <description id="version"/> <description>Author: bla bla bla</description> <description>ICQ: bla</description> <description>E-mail: [email protected]</description> <description>Website: www.bla-bla.com</description> <separator class="groove" flex="1"/> <description>News feed powered by Bla agency</description> <description>Exchange Rates are powered by Blaaaa Blaa of Blabla</description> </vbox> </hbox> </prefpane> and for some reason the window is not being vertically resized to fit last description element I tried many attributes, many combinations of vbox/hbox.. same. How to solve it guys?

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  • Using jQuery to store basic text string in mySQL base?

    - by Kenny Bones
    Could someone point me in the right direction here? Basically, I've got this jQuery code snippet: $('.bggallery_images').click(function () { var newBG = "url('" + $(this).attr('src'); var fullpath = $(this).attr('src'); var filename = fullpath.replace('img/Bakgrunner/', ''); $('#wrapper').css('background-image', newBG); // Lagre til SQL $.ajax({ url: "save_to_db.php", // The url to your function to handle saving to the db data: filename, dataType: 'Text', type: 'POST', // Could also use GET if you prefer success: function (data) { // Just for testing purposes. alert('Background changed to: ' + data); } }); }); This is being run when I click a certain button. So it's actually within a click handler. If I understand this correctly, this snippet takes the source if the image I just clicked and strips it so I end up with only the filename. If I do an alert(filename), I get the filename only. So this is working ok. But then, it does an ajax call to a php file called "save_to_db.php" and sends data: filename. This is correct right? Then, it does a callback which does an alert + data. Does this seem correct so far? Cause my php file looks like this: <?php require("dbconnect2.php"); $uploadstring = $_POST['filename']; $sessionid = $_SESSION['id']; echo ($sessionid); mysql_query("UPDATE brukere SET brukerBakgrunn = '$uploadstring' WHERE brukerID=" .$_SESSION['id']); mysql_close(); ?> When I click the image, the jQuery snippet fires and I get the results of this php file as output for the alert box. I think that the variables somehow are empty. Because notice the echo($sessionid); which is a variable I've created just to test what the session ID is. And it returns nothing. What could be the issue here? Edit: I just tried to echo out the $uploadstring variable as well and it also returns nothing. It's like the jQuery snippet doesn't even pass the variable on to the php file?

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  • Help me reduce code repetition in a simple jQuery function

    - by user339876
    I have built a carousel using the jQuery cycle plugin. I have 4 links that jump to relevent slides. Right now I have a chunk of code for each link. I am trying to create a single multi-purpose function. $('#features-slide0').click(function() { $('#features-slides').cycle(0); return false; }); $('#features-slide1').click(function() { $('#features-slides').cycle(1); return false; }); $('#features-slide2').click(function() { $('#features-slides').cycle(2); return false; }); $('#features-slide3').click(function() { $('#features-slides').cycle(3); return false; }); I have a rel value on each link that carries the number of the slide. How can I use that to create a single block of code that takes care of the link jump?

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  • Understanding a skelton of jQuery plugin

    - by TK
    At a website, I found the following code to make a jQuery plugin: (function($){ // Our code here... })(jQuery); I don't understand how the code above works. What I understand is that the code executes immediately because the very last () in function(){}(). So the entire code says that is an anonymous function that is run immediately. But I don't understand why the wrapping needs to pass jQuery and that inside it needs $ to be passed. From my understanding, $ is an alias to jQuery, meaning practically the same. What is the meaning of $ and jQuery here? How does the overall code work as a jQuery plugin?

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  • Back-to-back ajax long poll without a recursive callback function.

    - by Teddy
    I'm trying to make long poll ajax calls, back to back. The problem with the current way I'm doing it is that I make each successive call from the callback function of the previous call. Is this a problem? Firebug doesn't show any of my ajax calls as completed, even thought the data is returned and the callback is executed. The recursive structure seems inefficient. Any ideas?

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