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  • What are the general strategies for the server of an FPS multiplayer game to update its clients?

    - by Hooray Im Helping
    A friend and I were having a discussion about how a FPS server updates the clients connected to it. We watched a video of a guy cheating in Battlefield: Bad Company 2 and saw how it highlighted the position of enemies on the screen and it got us thinking. His contention was that the server only updates the client with information that is immediately relevant to the client. I.e. the server won't send information about enemy players if they are too far away from the client or out of the client's line of sight for reasons of efficiency. He was unsure though - he brought up the example of someone hiding behind a rock, not able to see anyone. If the player were suddenly to pop up where he had three players in his line of sight, there would be a 50ms delay before they were rendered on his screen while the server transmitted the necessary information. My contention was the opposite: that the server sends the client all the information about every player and lets the client sort out what is allowed and what isn't. I figured it would actually be less expensive computationally for the server to just send everything to the client and let the client do the heavy lifting, so to speak. I also figured this is how cheat programs work - they intercept the server packets, get the location of enemies, then show them on the client's view. So the question: What are some general policies or strategies a modern first person shooter server employs to keep its clients updated?

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  • jQuery memory game: if $('.opened').length; == number run function.

    - by Carl Papworth
    So I'm trying to change the a.heart when there is td.opened == 24. I'm not sure what's going wrong though since nothings happening. HTML: <body> <header> <div id="headerTitle"><a href="index.html">&lt;html<span class="heart">&hearts;</span>ve&gt;</a> </div> <div id="help"> <h2>?</h2> <div id="helpInfo"> <p>How many tiles are there? Let's see [calculating] 25...</p> </div> </div> </header> <div id="reward"> <div id="rewardContainer"> <div id="rewardBG" class="heart">&hearts; </div> <p>OMG, this must be luv<br><a href="index.html" class="exit">x</a></p> </div> </div> <div id="pageWrap"> <div id="mainContent"> <!-- DON'T BE A CHEATER !--> <table id="memory"> <tr> <td class="pair1"><a>&Psi;</a></td> <td class="pair2"><a>&para;</a></td> <td class="pair3"><a>&Xi;</a></td> <td class="pair1"><a>&Psi;</a></td> <td class="pair4"><a >&otimes;</a></td> </tr> <tr> <td class="pair5"><a>&spades;</a></td> <td class="pair6"><a >&Phi;</a></td> <td class="pair7"><a>&sect;</a></td> <td class="pair8"><a>&clubs;</a></td> <td class="pair4"><a>&otimes;</a></td> </tr> <tr> <td class="pair9"><a>&Omega;</a></td> <td class="pair2"><a>&para;</a></td> <td id="goal"> <a href="#reward" class="heart">&hearts;</a> </td> <td class="pair10"><a>&copy;</a></td> <td class="pair9"><a>&Omega;</a></td> </tr> <tr> <td class="pair11"><a>&there4;</a></td> <td class="pair8"><a>&clubs;</a></td> <td class="pair12"><a>&dagger;</a></td> <td class="pair6"><a>&Phi;</a></td> <td class="pair11"><a>&there4;</a></td> </tr> <tr> <td><a class="pair12">&dagger;</a></td> <td><a class="pair5">&spades;</a></td> <td><a class="pair10">&copy;</a></td> <td><a class="pair3">&Xi;</a></td> <td><a class="pair7">&sect;</a></td> </tr> </table> <!-- DON'T BE A CHEATER !--> </div> </div> <!-- END Page Wrap --> <footer> <div class="heartCollection"> <p>collect us if u need luv:<p> <ul> <li><a id="collection1">&hearts;</a></li> <li><a id="collection2">&hearts;</a></li> <li><a id="collection3">&hearts;</a></li> <li><a id="collection4">&hearts;</a></li> <li><a id="collection5">&hearts;</a></li> <li><a id="collection6">&hearts;</a></li> </ul> </div> <div class="credits">with love from Popm0uth ©2012</div> </footer> </body> </html> Javascript: var thisCard = $(this).text(); var activeCard = $('.active').text(); var openedCards = $('.opened').length; $(document).ready(function() { $('a.heart').css('color', '#CCCCCC'); $('a.heart').off('click'); function reset(){ $('td').removeClass('opened'); $('a').removeClass('visible'); $('td').removeClass('active'); }; $('td').click(openCard); function openCard(){ $(this).addClass('opened'); $(this).find('a').addClass('visible'); if ($(".active")[0]){ if ($(this).text() != $('.active').text()) { setTimeout(function(){ reset(); }, 1000); } else { $('.active').removeClass('active'); } } else { $(this).addClass("active"); } if (openedCards == 24){ $(".active").removeClass("active"); $("a.heart").css('color', '#ff63ff'); $("a.heart").off('click'); } } });

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  • Need my video to loop please

    - by Jay L
    Hi all, Thank you in advance for any help, I am a newbie and would appreciate any help here.. I have this code to play a movie and it works great. Can somebody PLEASE tell me how to make this movie loop and replay from the beginning non stop ( any code would help). Also I would like to know how to play 2 movies, one after the other, preferably with a fade or smooth transition. Thank you for any help import "MyAppViewController.h" @implementation MyAppViewController -(IBAction)button:(id)sender{ NSString *path = [[NSBundle mainBundle] pathForResource:@"mymovie" ofType:@"mp4"]; player = [[MPMoviePlayerViewController alloc] initWithContentURL:[NSURL fileURLWithPath:path]]; [self presentMoviePlayerViewControllerAnimated:player]; }

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  • Windows Media Center says "Searching for tuners" when I try to play live TV

    - by Louis
    After upgrading from Windows 8 Pro with Media Center to the 8.1 preview, I need some help in being able to watch live TV again. When I try to now, it says Please Wait. Searching for tuners. I tried reinstalling the software for the Hauppauge WinTV DCR-2650 TV tuner, and upgrading the firmware for both the tuner and the Cisco STA-1520 tuning adapter. I also tried swapping around the USB ports, cold-booting the devices, and running the Set Up TV Signal setting in WMC, but that says The TV signal cannot be configured because a TV tuner was not detected. Both devices look fine in Device Manager, reporting the "This device is working properly" status. I'm not sure if this is related, but I did have some network connectivity issues immediately after upgrading to Windows 8.1 where my either my subnet mask or default gateway was missing, and since the TV tuner shows up as a network device, I wonder if that might be related. However, I really don't know how those settings should look and Hyper-V sort of further complicates things with the virtual Ethernet adapters:

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  • Disable (or switch off) a network interface on windows but keep the "plug and play"

    - by Leandro
    I'm looking for a good workaround to do this on Windows 7 and Windows XP: Disable or make ineffective the network interface (ETH, WIFI, any NIC). If the user connect his ETH cable, the network interface enable again. Important Notes to take care: I'm working with wmic on Win7 (through the command line) I'm working with devcon on WinXP (through the command line) I'm specifically working with the .NET Framework 2.0 on C# but this is just for informational purposes. I know that an event won't help me to detect it (if there is a way or workaround to do this I don't know it). The real problem is that when I disable the NIC, I can't know if the user connects his cable or has a wired network. This is why I am looking for a workaround. I'll treat suggestions as answers if no direct answer exists. I'll provide any extra detail necessary.

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  • Win7 MCE seems unable to play ripped DVDs

    - by ilivewithian
    I'm running Windows 7 and am using mymovies.dk to rip the dvds to my harddrive. However, playback isn't watchable as the picture is very stuttery and blocky, only shots that show the same image for a few seconds get shown properly. The dvd's are ripped as the straight folder structure and if played in XBMC are fine. I've tried installing both the cccp-project.net and latest div-x codecs, but that doesn't seem to have helped. I'd like to stick with MCE as it has a high WAF (wife acceptance factor). Any suggestions?

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  • Getting GTalk and Alt-Tab to play nice

    - by Steve Armstrong
    I'm running GTalk on Windows 7, and it refuses to work properly with Alt-Tab. Let's say I've got 2 message windows open (msg1 and msg2) and the contact list, as well as Firefox. Alt-tab from Firefox to msg1 works, but now the contact list is the most recent thing in the alt-tab list (not Firefox as expected). Then there's the problem that I can't use alt-tab to select a specific message window, and when switching back to msg2 (showing msg2 in the alt-tab window) it might switch back and have focus on msg1. I found this thread complaining about the same problem, but it's over a year old, and I'm hoping some progress has been made.

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  • Game Guide to Purchasing Items in Fish Isle

    There are many things you can purchase in Fish Isle like decorations, buildings, trees, and animals. This Fish Isle guide will show you how to purchase items, but it will also show you how to do thin... [Author: Jake Clark - Computers and Internet - April 17, 2010]

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  • Where can I buy freely redistributable (creative commons) game assets?

    - by Erlend
    I'd like to know about any 3D asset shops out there that specialize in game assets and, most importantly, license their assets under an open license like Creative Commons or similarly permissive. We are looking to buy some professional looking assets for use and redistribution with our open source 3D game engine. The problem is that all the commercial 3D assets we've come by are only sold under very restrictive licenses, which won't allow us to include the models in our code repository (since free code hosting repositories require that all your data, including media, is open source or otherwise copyleft) nor in turn redistribute the assets as part of our downloadable SDK. I realize this sounds like a weak business idea, since users could just buy the asset and start sharing it with everyone. But somehow this has worked for hundreds of WordPress theme shops, so I was hoping maybe someone's trying similar things for commercial game assets.

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  • Codec problem: Video noise / squares blinking as it play

    - by Havenard
    Its a weird and intermittent problem, it comes and goes with time. I thought I could fix it rebooting, but it seems that is not always. Take a look: This noise keeps blinking at the screen the entire movie. If I give up and try again an hour from now, it will be fine... weird! I have K-Lite Codec Pack installed, in my machine and many others. Its very cool, everything works perfect... but mine is the only one that does it. Do anybody know whats going on? Edit: Apparently they've just release the very latest version of K-Lite today (lol), with some bug fixes. I'll be testing it. Last time I reainstalled K-Lite the problem was gone, but came back again...

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  • Windows 8.1 unable to play Music or the Audio from videos through Optical Out

    - by Zion Fox
    I am having an issue with my audio output, where any music file, and the audio side of videos are not being played through my optical audio output. I am running a Realtek HD Audio device built on Revision 1.0 on a GA-P55A-UD6 Gigabyte Board, which runs through it's optical output to an Astro A40 Mixamp, which does some upscaling before sending it to the headset. Now, notification sounds, and sounds/videos/music played through the browser or programs like Skype or games are working fine. This seems to specifically effect Foobar2000 and Media Player Classic. I have updated these two programs to their latest revisions, in addition to the soundcard drivers to no avail, and searching the error code thrown by Foobar2000: Unrecoverable playback error: The parameter is incorrect. (0x80070057) through Google returns not very helpful results, other than the one potentially mentioning DRM. This issue I am having a very hard time resolving, and am wondering if anyone here has experienced similar issues after updating.

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  • iTunes mono play?

    - by Seth Glickman
    I've got a set of speakers, but one of them doesn't work. Is there any way to get iTunes to output to mono, but with both channels? I'm on Leopard, and going to System Preferences - Sound - Output and sliding the Balance all the way to one side doesn't help, as it doesn't combine the channels.

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  • iptables to play nice with tor and ntpd

    - by directedition
    I'm setting up a server to operate as a tor relay and nothing else. I setup iptables to only allow talk on port 9001 and it worked fine, but there was an issue, the clock needs to be properly set and maintained for the relay to work properly, so I needed ntpd setup and running, but for some reason I can't get iptables to work as I want it. I'm trying to have it allow only tor and ntpd to talk over the network, but when I set it up to allow port 123 using udp, suddenly it ignores my -A OUTPUT ! -s 127.0.0.1 -j DROP and allows everything through. How should I go about this? Please excuse my ignorance, I've brand new to iptables.

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  • DevConnections: Day 1 Recap And Spin The Wheel Game

    Microsoft officially launched Visual Studio 2010 yesterday and the DevExpress booth was packed with attendees. Most attendees had product questions about current and future products. Some came by just to show their DevExpress love (thank you!). And some were also there to spin the wheel: DXperience v2010.1 Beta Release Date Our team is hard at work to get the DXperience v2010.1 beta out. DXperience customers should see the beta available in your client center account later this week or early...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Good book/resource recommendation for HTML5 mobile game development?

    - by Greg Bala
    The problem: I am taking an existing, 5 year old, html based MMORTS game and "HTML5-ing" it, "AJAX-ing" it and most importantly, optimizing for mobile devices like iPhone, android etc. For these devices, the application will be packaged as a downloadable app that is a wrapper for a browser which actually shows the game.. The Question Looking for a good book, or books, or in-depth articles that would help me learn: what tools I have in iOS, andriod applications for optimizing an html based game. things like caching of images, etc what kind of connectivity, or interactivity I can expect between the html/javascript pages and the wrapper - can I play sounds in the wrapper by triggering them from javascript? etc tip and tricks to optimize html/html5 & Javascript application to run well on mobile devices ETC :) Any recommendations would be greatly appreciated!!

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  • Game-Changing New Technology for Datacenter Storage

    - by Lajos Sárecz
    Ma este 18 órától tart az Oracle egy publikus webcast-ot, mely keretében egy új storage technológia kerül bejelentésre. Aki az adattárolási költségeit szeretné csökkenteni és egyúttal hatékonyabbá tenni (ki ne szeretné ezt?), annak érdemes beregisztrálnia. A hírek szerint ugyanis ez az új technológia jelentos teljesítmény növekedést eredményez a tárolási költségek csökkentése mellett, ráadásul nagy kapacitással és archiválás valamint adatvédelem szempontjából újszeru képességekkel érkezik.

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