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  • RPG Game loop and class structure (cocos2D for iPhone)

    - by mac_55
    I'm looking to make an RPG with Cocos2D on the iPhone. I've done a fair bit of research, and I really like the model Cocos2D uses for scenes. I can instantiate a scene, set up my characters etc. and it all works really nicely... what I have problems with is structuring a game loop and separating the code from the scenes. For example, where do I put my code that will maintain the state of the game across multiple scenes? and do I put the code for events that get fired in a scene in that scene's class? or do I have some other class that separates the init code from the logic? Also, I've read a lot of tutorials that mention changing scenes, but I've read none that talk about updating a scene - taking input from the user and updating the display based on that. Does that happen in the scene object, or in a separate display engine type class. Thanks in advance!

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  • Is it possible to connect iPhones through NAT traversal techniques over 3G for peer 2 peer gaming

    - by Dougnukem
    Is it possible to connect an iPhone to another iPhone or any other network client talking that game's protocol. I was thinking that I could use the same NAT Traversal technique used in the XBox 360 to host games on users XBox's through Firewalls. For NAT traversal to work effectively I'd have to have a central server that would allow clients to "broadcast" that they were hosting so that another client could initiate the NAT connection. In the link provided this is called relaying. Is there any inherent limitation of the US AT&T 3G network that will block the NAT traversal techniques (would you be limited to wifi firewall NAT traversal)? NAT Traversal Projects: - PJSIP - providing NAT traversal functionalities by using standard based protocols such as STUN, TURN, and ICE. - Freecast using Apache MINA Java network library for NAT Traversal

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  • IPhone like scrolling on Silverlight ListBox

    - by Larsi
    Hi! I need a listbox with IPhone-like functionality for Silverlight. That is, animated scrolling, and click and drag to scroll. Scrolling will continue a bit after the mouse up event based on the "speed" of the dragging. I've search and found no control vendors providing this. So question is how should I build it? I need some hints to get started. There's two parts to this question: Part 1, How to get the animated scrolling of the listbox. Part 2, How to build a "draggable" scrolling, I guess I should put a canvas on top and track the mouseevent, and simulate some physics. Some hints here would have been great. Thanks Larsi.

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  • Text mining with PHP

    - by garyc40
    Hi, I'm doing a project for a college class I'm taking. I'm using PHP to build a simple web app that classify tweets as "positive" (or happy) and "negative" (or sad) based on a set of dictionaries. The algorithm I'm thinking of right now is Naive Bayes classifier or decision tree. However, I can't find any PHP library that helps me do some serious language processing. Python has NLTK (http://www.nltk.org). Is there anything like that for PHP? I'm planning to use WEKA as the back end of the web app (by calling Weka in command line from within PHP), but it doesn't seem that efficient. Do you have any idea what I should use for this project? Or should I just switch to Python? Thanks

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  • SSRS 2008 - How to hide the plus icon in a group visibility toggle cell

    - by Daniel Coffman
    I have a report that shows or hides columns in a group based on a header cell. SSRS makes this pretty easy and is kind enough to place a little plus/minus icon in the toggling cell. I want to HIDE this plus/minus icon when there is only one column of data in the subgroup, because it shows that one column by default so expanding the group doesn't do anything. This really only applies to one specific group, because all the others always have more than one column of data, so a way to hide only the icon for a specific group would be fine. JavaScript won't work (I don't think) because the client ID of the plus/minus image is generated by the report and changes with each generation. see this image for more clarity: http://imgur.com/vqaQA.png

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  • faking a filesystem / virtual filesystem

    - by attwad
    I have a web service to which users upload python scripts that are run on a server. Those scripts process files that are on the server and I want them to be able to see only a certain hierarchy of the server's filesystem (best: a temporary folder on which I copy the files I want processed and the scripts). The server will ultimately be a linux based one but if a solution is also possible on Windows it would be nice to know how. What I though of is creating a user with restricted access to folders of the FS - ultimately only the folder containing the scripts and files - and launch the python interpreter using this user. Can someone give me a better alternative? as relying only on this makes me feel insecure, I would like a real sandboxing or virtual FS feature where I could run safely untrusted code.

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  • How to use gnlcomposition to concatenate video files?

    - by Hardy
    Hi All, I am trying to concatenate two video files with the gnonlin components of the gstreamer. The pipeline I am using is gst-launch-0.10 gnlcomposition { gnlfilesource name="s1" location="/home/s1.mp4" start=0 duration=2000000000 media-start=0 media-duration=2000000000 gnlfilesource name="s2" location="/home/s2.mp4" start=2000000000 duration=2000000000 media-start=0 media-duration=2000000000 } ! queue ! videorate ! progressreport name="Merging Progress" ! ffmpegcolorspace ! ffenc_mpeg4 ! ffmux_mp4 ! filesink location="/home/merge.mp4" As a result I am getting only the second file for the duration specified in the parameters. Tried several things and also searched on google but I could not figure out the problem with the above command. Can anyone point what i am doing wrong? Any other way of concatenating multiple files into one based on time is welcome too. Thanks

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  • Choosing between Berkeley DB Core and Berkeley DB JE

    - by zokier
    I'm designing a Java based web-app and I need a key-value store. Berkeley DB seems fitting enough for me, but there appears to be TWO Berkeley DBs to choose from: Berkeley DB Core which is implemented in C, and Berkeley DB Java Edition which is implemented in pure Java. The question is, how to choose which one to use? With web-apps scalability and performance is quite important (who knows, maybe my idea will become the next Youtube), and I couldn't find easily any meaningful benchmarks between the two. I have yet to familiarize with Cores Java API, but I find it hard to believe that it could be much worse than Java Editions, which seems to be quite nice. If some other key-value store would be much better, feel free to recommend that too. I'm storing smallish binary blobs, and keys probably will be hashes of the data, or some other unique id.

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  • Recommendation for high performance WPF Chart

    - by Ajaxx
    We're working on a WPF-based desktop application that charts financial markets information (candlestick charts, overlayed indicator curves, volume, etc). The charts are displayed in real-time with responses to market ticks being shown in real-time (updating one to two times per second is probably a reasonable display refresh policy). We've been looking for a software package (commercial is fine by us) that has the capability of displaying these charts. Additionally, we'd like to have an approach that can render the initial amount of data in a reasonable timeframe (give or take 100-200ms from the time we hand the data over to a complete render on screen). Also we view multiple charts (5-10) simultaneously so a solution that chews up 50% of my CPU to display one chart really isn't going to work well. Has anyone had any good experiences with charting controls. We've had to hand roll the last few charts we've done and I'd prefer not to do it again. Solutions that can make use of the GPU to minimize CPU utilization would be nice as well.

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  • Getting a .Net remoting service accessible with IP v6 and IP v4

    - by jon.ediger
    My company has an existing .Net Remoting service that listens on a port, fronting interfaces used by external systems. This all works great with IP v4 based communications. However, this service now needs to support both IP v4 communications and IP v6 communications. I have found info that the system.runtime.remoting section of the app.config should include two channels as follows: <channel ref="tcp" name="tcp6" port="9000" bindTo="[::]" /> <channel ref="tcp" name="tcp4" port="9000" bindTo="0.0.0.0" /> I've tried this. For communications to this service and a direct response back, this works great. Some of the communications instead return a stream back, either for uploading or downloading large files. These calls fail with the an ArgumentException: IPv4 address 0.0.0.0 and IPv6 address ::0 are unspecified addresses that cannot be used as a target address. Parameter name: hostNameOrAddress How should these config values be modified so that the client will know how to communicate back to the .Net remoting service?

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  • Hibernate Schema Validation Fails on Oracle Table Synonyms

    - by Rob
    I'm developing a Java web application that uses Hibernate (annotations-based) for persisting entities to an Oracle 11g database. The DBA created synonyms for the tables and requested that I use these synonyms instead of the physical tables. (Eg: Table "Foo" has synonym "S_Foo") If I have "hibernate.hbm2ddl.auto=validate" enabled, then the application fails on startup with "Missing Table: S_Foo". If I turn off the validation, then the app starts up fine and works properly. My guess is that Hibernate only checks against physical tables and not synonyms when validating that a table exists. Is there any way to enable Hibernate schema validation with synonyms? Can I specify both a physical table and a synonym in the annotation? I prefer having that extra safety check that the table structure is correct when the application starts up.

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  • C# - Launch Invisible Process (CreateNoWindow & WindowStyle not working?)

    - by Chad
    I have 2 programs (.exe) which I've created in .NET. We'll call them the Master and the Worker. The Master starts 1 or more Workers. The Worker will not be interacted with by the user, but it is a WinForms app that receives commands and runs WinForms components based on the commands it receives from the Master. I want the Worker app to run completely hidden (except showing up in the Task Manager of course). I thought that I could accomplish this with the StartInfo.CreateNoWindow and StartInfo.WindowStyle properties, but I still see the Client.exe window and components in the form. However, it doesn't show up in the taskbar. Process process = new Process { EnableRaisingEvents = true, StartInfo = { CreateNoWindow = true, WindowStyle = ProcessWindowStyle.Hidden FileName = "Client.exe", UseShellExecute = false, ErrorDialog = false, } }; What do I need to do to let Client.exe run, but not show up?

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  • User management API

    - by Akshey
    Hi, I am developing an application suite where users will need to connect to a server and depending on their account type they will be given some services. The server will run Linux. Can you please suggest me some user management API which I can use to develop the server program? By user management I mean user authentication and other related functionalities. I prefer to work in C++ or python, but any other language should not be a problem. Please note that this application suite is not web based. Due to security issues, I do not want to give each user a separate account on the linux server. Thanks, Akshey

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  • Webmail client that can open multiple email addresses at once like a desktop client

    - by Trent
    I've got 5 email domains with multiple email addresses on each domain. Traditional webmail clients only seem to allow you to browse a single account at a time (ie, you log into that account). With over 20 email addresses I need to monitor, this is obviously a major time sink. Is there a (preferably OSS, unix-based) webmail client that simulates a desktop email client, ie I log in once and can access all the email addresses from a central control panel? I've considered using a ticket system but that is overkill and not really used to my needs.

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  • .NET Build Process

    - by Nix
    All I am looking for the best free set of tools to be used in a MS Based build process. Checkout, Build, Package, Test, Deploy, etc. I know this question has been asked before but it was over 2 years ago, and in our world that is an eternity. I am looking to develop a pattern that is easily adapted to similar projects. Almost like a template/cookie cutter system. I am currently looking into using CruiseControl, Powershell, MSBuild suite of tools. If we choose to move to 4.0 will we have issues? Are there better alternatives? Limitations ? Or will these pretty much meet my needs. One piece that i am never happy with is the process of packaging. We actually have opted in the past to just use Visual Studio Deployment Projects but those are very* ancient and my fear is WIX will be too complicated for the people implementing it.

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  • jQuery not loading on Master Page when the Content Page is in a child folder.

    - by ProfK
    I have a site where I am trying to implement a jQuery UI based MessageBox in my master page. Content pages are arranged accoring to business area folders, i.e. '~/Branding/Contracts.aspx'. I find that when I load such a content page, jQuery, which is referenced in the master page as below, does not load. I assume that this is because the browser is requesting 'Branding/Scripts/jQuery '. What can I do about this? I don't have the 'root' operator in a plain 'script' tag. <script src="/Scripts/jquery-1.3.2.js" type="text/javascript"></script> <script src="Scripts/jquery-1.3.2.js" type="text/javascript"></script> <script src="Scripts/jquery-ui-1.7.2.custom.min.js" type="text/javascript"></script>

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  • iPhone Mapkit Blue Dot / User Location Region Zoom Question

    - by user290031
    Hey All, Is is possible to set a region based on a current location in a mapview only one time. I want my iphone app to get the current location, zoom into that current location, and then allow the user to scroll around. However, because my setRegion code is in my didUpdateToLocation function, every time the current location is updated, so is the region, and I can't scroll around on the map. I tried putting this setRegion code in the viewDidLoad function, but the user's current location isn't initialized at this point, so it doesn't work right. Any ideas?

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  • Resources for rails widget creation

    - by Kenji Crosland
    My rails app is about to go live and I'm trying to figure out how to create a widget based on data on the site. My Javascript is not too hot--limited to the O'reilly head first book on JS. I can read simple Javascript okay but when it comes to writing it I'm a little lost. That said, I hope to roll out a widget, maybe a wordpress plugin too soon after my app is launched. Does anyone know of any rails plugins, javascript templates, tutorials or books that can get me going? I did ask a similar question before here: But my limited knowledge of JS kept me from implementing the suggested answer properly.

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  • how to set jqgrid cell color at runtime

    - by anil
    Hi, i am populating a jqgrid from database and one of its columns is a color column like red, blue, etc. Can i set the cell color of this column based on the value coming from database at run time? how should i set formatter in this case? i tried like this but do not work var colorFormatter = function(cellvalue, options, rowObject) { var colorElementString = ''; return colorElementString; colModel: [ { name: 'GroupName', index: 'GroupName', width: 200, align: 'left' }, { name: 'Description', index: 'Description', width: 300, align: 'left' }, { name: 'Color', index: 'Color', width: 60, align: 'left', formatter: colorFormatter}],

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  • Need help with NHibernate / Fluent NHibernate mapping

    - by Mark Boltuc
    Let's say your have the following table structure: ============================== | Case | ============================== | Id | int | | ReferralType | varchar(10) | +---------| ReferralId | int |---------+ | ============================== | | | | | | | ====================== ====================== ====================== | SourceA | | SourceB | | SourceC | ====================== ====================== ====================== | Id | int | | Id | int | | Id | int | | Name | varchar(50) | | Name | varchar(50) | | Name | varchar(50) | ====================== ====================== ====================== Based on the ReferralType the ReferralId contains id to the SourceA, SourceB, or SourceC I'm trying to figure out how to map this using Fluent NHibernate or just plain NHibernate into an object model. I've tried a bunch of different things but I haven't been succesful. Any ideas? The object model might be something like: public class Case { public int Id { get; set; } public Referral { get; set; } } public class Referral { public string Type { get; set; } public int Id { get; set; } public string Name { get; set; } }

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  • Terminology for web app running on hardware

    - by Lily
    Hi, Let me start by saying I feel very silly asking this, hence the newbie tag. I am trying to investigate how to develop an UI application that will run directly on hardware. This will be very much like when you access the web based application within your router. I don't really know how what keywords and terminology to use so that i can search tutorials on the net. Can anybody give me the correct terms? If you have tutorial suggestions, they are welcome as well.

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  • Integrating my website with BlogEngine.Net

    - by Kabeer
    Hello. I am developing a site (ASP.Net based) that, besides other features enables the users to blog as well. I am thinking of integrating BlogEngine.Net to my portal. From whatever little I have analyzed, integrating at presentation layer will be far more challenging in comparison to doing so at business layer. That means (I guess) I will have to use the BlogEngine.Core.dll in my application. I am looking for some sort of approval from the community, complimented with suggested do's and dont's. BTW, I find the business layer a bit intimidating (complex) as I want some basic & necessary features only.

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  • Infragistics WebScheduleInfo Sample code

    - by Woodmark
    I am working with Infragistics35.WebUI.WebSchedule.v8.2. I am not seeing any good documentation on this on the Infragistics Web site. Does anyone have any sample code I could see? I am trying to create a week view of the calendar. One that "Admins" can edit and the rest of the users can only view. I would love to have a different dblclick event fire based on role, so that a read only version of the activity would show for non admins. Is that possible? I'm just using an access db on the site in the App_Data directory. I really just needed (I thought) an out of the box solution. Cheers.

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  • How to stop Spring MVC blocking all other Servlets?

    - by Dag
    Hi, I'm using Spring 2.5 MVC and wan't to add another third-party Servlet. The Problem is, that Spring MVC catches all request, so the Servlet isn't getting any request. Here a web.xml Snippet: SpringMVC org.springframework.web.servlet.DispatcherServlet 2 <servlet-mapping> <servlet-name>SpringMVC</servlet-name> <url-pattern>/*</url-pattern> </servlet-mapping> <servlet> This is the servlet needed for cache.type servlet, returns the packed resources PackServlet PackServlet net.sf.packtag.servlet.PackServlet PackServlet *.pack The /* mapping is really needed for the application, an pack:tag (the third-party Servlet) really need the mapping based on the file extension. Any possiblities to tell Spring not to process the request? Thanks and regards.

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  • Using Jquery to get JSON objects from local file.

    - by ThoughtCrhyme
    I'm trying to get a list of JSON objects (products) from a local file using Jquery and store all the objects in a single array called allItems. The file is co-located in the same directory as the code, and it's called "allItems.json". Here's how I'm doing it now: function getAllSupportedItems(){ var allItems = new Array(); $.getJSON("allItems.json", function(data){ $.each(data.items, function(item){ allItems.push(item); }); }); return allItems; } Based on this example: http://api.jquery.com/jQuery.getJSON/

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