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• C# Rendering Engine for Roguelike [closed]

  - by Haedrian

  I'm trying my hand at designing a roguelike, and I need a pretty simple 2D rendering engine that works with C# Its as simple as it gets, I want to be able to drop sprites somewhere on a grid, with some sort of menus/text on the side; that sort of thing. The (very complicated) game itself would be decoupled from the interface I've looked into a number of engines and they all seem to be very complicated/support much more things than I need. Right now I'm planning on making my own using either XNA or OpenTK - but I was wondering whether anyone has any suggestions for less-complicated rendering engines which might make my job easier. Thanks.

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• Best options for freelance or part-time programming? [closed]

  - by Andrew

  I apologize in advance if this is an inappropriate question for this SE. A few years back I was all set to study computer science and get a job programming, but went a totally different route and went into healthcare. I currently work as a paramedic on a rotating 24/48 schedule, so I have two days off for every day I work, and a decent bit of downtime on the days that I do work. I've been looking at ways to earn some extra money with all that spare time, and was wondering if it'd be worth the effort to try and find a part-time/freelance gig. I know HTML/CSS, PHP, and I'm pretty familiar with Python and Ruby (and Rails). Anyways, was hoping that someone could point me in the right direction as what "skill set" would give me the best chance to be able to land a part-time/freelance gig. I realize this is a rather open-ended question but any direction is appreciated.

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• Should I have link rel=next & prev on URLs which have query variables?

  - by user21100

  For example, I have link rel prev & next set up on these pages of products: site.com?page=2 site.com?page=3 (this is my preferred structure by the way and I'm trying to get all the ugly URLs which are littered with query variables deindexed as they are causing duplicate content). So the above URLs are fine but once a filter to narrow product results is selected, like "price", the URL shows like this: site.com?price[1000-1499]=on site.com?page=2&price[1000-1499]=on As of right now, I am having the link rel prev & next dynamically added to the header of these pages but since I am working on getting these query variable URLs pages deindexed, I am wondering if I should get rid of it on these pages? Any thoughts?

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• Browser window size statistics?

  - by Litso

  I was wondering, are there any statistics available on what size users have their browser set to nowadays? I know the screen resolutions (we have analytics, which shows those as well) but I doubt a lot of people with 1280*xxx and higher still browse full-screen though. My boss is determined to keep our website 900px wide though, because that way people with 1800*xxx resolutions can have two browser windows next to eachother without having to scroll horizontally. I have never seen anyone browse with two adjacent browser windows like that except here at my current job, so I'm kind of doubting whether this is the best decision or just his personal preference. Anyone that can help out here?

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• How do I balance program CPU reverse compatibility whist still being able to use cutting edge features?

  - by TheLQ

  As I learn more about C and C++ I'm starting to wonder: How can a compiler use newer features of processors without limiting it just to people with, for example, Intel Core i7's? Think about it: new processors come out every year with lots of new technologies. However you can't just only target them since a significant portion of the market will not upgrade to the latest and greatest processors for a long time. I'm more or less wondering how this is handled in general by C and C++ devs and compilers. Do compilers make code similar to if SSE is supported, do this using it, else do that using the slower way or do developers have to implement their algorithm twice, or what? More or less how do you release software that takes advantage of newer processor technologies while still keeping a low common denominator?

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• Can I Use A Canonical Tag Instead of a Redirect for Updated Content?

  - by Ewan Heming

  I have some old articles on my blog that get quite a bit of traffic, but are very outdated. I want to remove them from Google's index using the noindex tag, but I'm not sure what the best approach will be to send the same traffic to my new article on the subject without using a redirect (as I want to keep them in my blog archives). I was intending to just put a link at the top of the article pointing to the new one, but was wondering if it was appropriate to use a canonical tag instead; the new article is on the same subject but doesn't contain the same content, so isn't really a copy.

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• LVD1 goes blurry if HDMI (DFP1) gets plugged in

  - by Jordon Bedwell

  I was wondering if anyone can explain why all of a sudden on 12.04 when I plug the HDMI in the text on my laptops monitor gets blurry. When I unplug the HDMI everything goes perfect again, text is crisp, plugin the HDMI text goes blurry. Screen 0: minimum 320 x 200, current 3280 x 1080, maximum 3280 x 1920 LVDS connected 1360x768+0+0 (normal left inverted right x axis y axis) 344mm x 194mm 1360x768 60.0*+ 1366x768 60.0 + 1280x768 60.0 1280x720 60.0 1024x768 60.0 1024x600 60.0 800x600 60.0 800x480 60.0 640x480 60.0 DFP1 connected 1920x1080+1360+0 (normal left inverted right x axis y axis) 160mm x 90mm 1920x1080 30.0 + 60.0* 59.9 30.0 1776x1000 59.9 30.0 1680x1050 60.0 59.9 1400x1050 60.0 59.9 1600x900 59.9 1280x1024 60.0 1440x900 59.9 1280x960 60.0 1360x768 60.0 1280x768 59.9 1280x720 60.0 59.9 1024x768 75.0 70.1 60.0 1152x648 59.9 1024x600 75.0 70.1 60.0 800x600 72.2 75.0 60.3 56.2 800x480 72.2 75.0 60.3 56.2 720x480 60.0 30.0 59.9 640x480 75.0 72.8 59.9 CRT1 disconnected (normal left inverted right x axis y axis) The TV is actually 1080p@60 not @75 and definably not preferred @30. Both are set to 60hz. The proprietary driver is installed and says it's working alright to me.

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• Encrypted windows partition with ubuntu / Grub configuration

  - by Flow

  guys i would like to encrypt my windows partition only , as i have dual boot windows 7 ultimate and ubuntu 12.04. I would like to encrypt all my windows partition with truecrypt as i suppose you already now , but i was wondering how will it work ? I suppose when i am gonna encrypt the whole partition of windows with true crypt , when i will boot linux grub will not find the partition ?! how can i do for the grub to find my partition windows encrypted ? thanks guys ps : basically more simple , i will encrypt my windows partition only , but grub will not detect anymore my windows partition?

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• bump mapping with 2 normal maps

  - by DorkMonstuh

  I was wondering if its actually possible to do bump mapping with 2 normal maps... I have tried doing it this way however I get a function overload on max and dot. uniform sampler2D n_mapTex; uniform sampler2D n_mapTex2; uniform sampler2D refTex; varying mediump vec2 TexCoord; varying mediump float vTime; void main() { mediump vec4 wave = texture2D(n_mapTex, TexCoord - vTime); mediump vec4 wave2 = texture2D(n_mapTex2, TexCoord + vTime); mediump vec4 bump = mix(wave2, wave, 0.5); //this extracts the normals from the combined normal maps mediump vec4 normal = normalize(bump.xyzw * 2.0 - 1.0); //determines light position mediump vec3 lightPos = normalize(vec3(0.0, 1.0, 3.0)); mediump float diffuse = max(dot(normal, lightPos),0.0); gl_FragColor = mix(texture2D(refTex, TexCoord), bump, 0.5); }

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• Facebook Java API

  - by Filippo

  I'd like to write a program in java (not a servlet, not jsp, not a webapp) which allows me to do simple things, such as connecting to a FB account and retrieve the status or posts on the wall. I know facebook no longer supports official JavaAPI, so I was wondering what are the best (and most simple, being the program very basic) unofficial api out there. If possible, i would also like some example-code. searching through the web, I've read that you need two secret keys to create a facebook application, and I have not a fb account. Is it indispensable to have an account? thank you everyone

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• Will URL encoding the image names

  - by TheGateKeeper

  Just wondering if it makes any difference to Google whether or not I URL encode the image names when linking to them. For example if I have an image named "test-1234-!.jpg", does it make a difference if I name it refer to it as "test-1234-%21.jpg"? The reason I am asking is because I am doing a major shift in the way my website works and while all new image names will not be URL encoded, all of the past ones are. I want to see if it is worth it renaming all of them or if I should just leave it like that.

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• How does Lastpass recognize actual login?

  - by Pan.student

  We are currently working on simple school project using Codeigniter where we need login page. It would be very useful if Lastpass could recognise and save logins. We have several accounts with different roles and manual insert of login is pretty slow. So I was wondering what needs to be done and where in files (view, controller?) for Lastpass to work as it does on every website. For example this is our login form: <?php echo form_open('login'); ?> <input type="text" id="username" name="username"/> <input type="text" id="password" name="password"/> <input type="submit" value="Login"/> </form> Thanks for help. (could not create new tag "Lastpass" due to low reputation) [SOLVED] changed <input type="text" id="password" name="password"/> to <input type="password" id="password" name="password"/>

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• Where to start in creating a massive multiplayer 3D Java game [on hold]

  - by user1373771

  I am planning on creating a massive multiplayer world and I am wondering where to start. I am quite inexperienced in the field of Java but I have researched into it and learned that it is perhaps my best bet in creating this project is Java for the fact that it has a much easier learning curve than C++ to beginners and still capable of holding massive amounts of players at a time. My question is simple: Should I start the game by creating a single player prototype and introducing multiplayer later as I become more experienced or start with multiplayer before I am completely experienced in the field. Thanks for your help!

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• 12.04 - Disable the HUD trigger key [ALT] in Emacs & Terminal

  - by EoghanM

  An answer on How to disable HUD in Unity 2D? points to https://bugs.launchpad.net/unity-2d/+bug/947613 where the ALT key will be made reconfigurable. Apart from emacs usage, I'm reasonably happy with using the ALT key to bring up the HUD. While using emacs though, the ALT key is tapped frequently to invoke commands. Should emacs be special cased with respect to the ALT key? I'm wondering what the situation is with games; surely lots of games repurpose the ALT key for their own use, e.g. to fire a weapon? If so, could the same be applied to Emacs, i.e. prevent the ALT key in emacs from triggering the HUD. Edit: just realized how extensively I use the ALT key in the terminal: a quick tap of ALT+B to move back a word loses focus of the terminal and brings up the HUD. Aghch

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• fast java2d translucency

  - by mdriesen

  I'm trying to draw a bunch of translucent circles on a Swing JComponent. This isn't exactly fast, and I was wondering if there is a way to speed it up. My custom JComponent has the following paintComponent method: public void paintComponent(Graphics g) { Rectangle view = g.getClipBounds(); VolatileImage image = createVolatileImage(view.width, view.height); Graphics2D buffer = image.createGraphics(); // translate to camera location buffer.translate(-cx, -cy); // renderables contains all currently visible objects for(Renderable r : renderables) { r.paint(buffer); } g.drawImage(image.getSnapshot(), view.x, view.y, this); } The paint method of my circles is as follows: public void paint(Graphics2D graphics) { graphics.setPaint(paint); graphics.fillOval(x, y, radius, radius); } The paint is just an rgba color with a < 255: Color(int r, int g, int b, int a) It works fast enough for opaque objects, but is there a simple way to speed this up for translucent ones?

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• Are there any reasons to use Legacy (2.X) OpenGL?

  - by user27886

  The benefits are well documented of the Modern OpenGL 3.X & 4.X API's, but I'm wondering if there are ANY benefits to keeping with the old OpenGL, Or if learning OpenGL 2.X is a complete waste of time now no matter what? Particularly I've wondered if using the OpenGL 2.X API is appropriate if the target platform had graphics hardware capable of only up to OpenGL 2.X. Would a driver update on said target platform allow programs compiled using the Modern OpenGL API's to be released on this old platform? If they both work, which would be faster? Thanks

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• Should I use the factory design pattern for every class?

  - by Frog

  I've been writing a website in PHP. As the code becomes more complex, I keep finding problems that can be solved using the factory design pattern. For example: I've a got a class Page which has subclasses HTMLPage, XMLPage, etc. Depending on some input I need to return an object of either one of these classes. I use the factory design pattern to do this. But as I encounter this problem in more classes, I keep having to change code which still initiates an object using its constructor. So now I'm wondering: is it a good idea to change all code so that it uses the factory design pattern? Or are there big drawbacks? I'm currently in a position to change this, so your answers would be really helpful.

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• Programming my first C++ program

  - by Jason H.

  I have a basic understanding of programming and I currently learning C++. I'm in the beginning phases of building my own CLI program for ubuntu. However, I have hit a few snags and I was wondering if I could get some clarification. The program I am working on is called "sat" and will be available via command line only. I have the main.cpp. However, my real question is more of a "best practices" for programming/organization. When my program "sat" is invoked I want it to take additional arguments. Here is an example: > sat task subtask I'm not sure if the task should be in its own task.cpp file for better organization or if it should be a function in the main.cpp? If the task should be in its own file how do you accept arguments in the main.cpp file and reference the other file? Any thoughts on which method is preferred and reference material to backup the reasoning?

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• How can I customize my bootloader to make it prettier?

  - by Matthew

  I hate how when I turn on the computer it just (after the hp logo, which I hate having also), shows white text on a black background. I'm wondering if there's easy ways to customize this (I'm choosing between Windows 7 and two separate Ubuntu 10.10 installs). I've read a little about some complicated ways to do this, but is there not some simpler ways by installing a package on ubuntu or something? I don't want to hack a bunch of code together to get a simple effect. I'm hoping for actual images and having like the windows 7 logo and ubuntu logo to choose from. Ideas?

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• Good practices when writing a parser for a standard file format (such as ePub)

  - by J-F L-R

  I am considering writing an Android reader software that can read ePubs and display them. I checked the ePub standard documents. However, these contain a lot of information. So I am wondering what is the process of implementing a standard for a file format. What are the steps to get a working implementation without passing by parts of the standard? Are there any best practices? Also, is it even possible to program this alone in a reasonable time? From what I have already found out, ePub is basically a zip archive. That means I could probably use zlib to decompress it. The content is in XHTML and CSS, so I believe it should be possible to display it in a WebView. The parts that are missing are writing the code that can read the metadata and manage the non-standard XHTML extensions.

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• XNA When to call LoadContent

  - by Peteyslatts

  I have an enum in my game that denotes the game state ie MainMenu, InGame, GameOver, Exit and I was wondering if it would be advisable to add a new one in for PrepGame - in which the game creates viewports for however many players there are, creates the battlefield etc. I feel like this is a good idea except for one thing: should I make a call back to LoadContent() in this state? I could just put a switch statement in the LoadContent for my currentGameState. If it equals PrepGame load things like the skybox, ship models, texures, HUD graphics etc. Or is it a good idea to create an Asset Manager class in the first call to LoadContent() and load everything then. I feel like both approaches have different benefits: faster, but more load times vs slower initial load time, but then all my objects are referencing the same variables so I only have to load each on once. Any help is greatly appreciated. Thanks, Peter

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• What is the best practice to develop a visual component in Flex Hero?

  - by gavri

  What is the best practice to develop a visual component in Flex Hero? I do it like this: I consider a component has 2 "parts", the declarative part (the visual sub-components) which I define in the skin (just mxml) and the code part (event handlers...) which I define in an action script class. I load the skin in the ctor of the action script class. I also define skin parts, states, and I bind event handlers in the partAdded function. I am having an argument about this; that I should define the component purely in an .mxml, with listeners in the script tag, and maybe attach a skin (but the skin should be loose - maybe for reuse :-?) I come from .NET and maybe I am biased with the code behind pattern, and I am wondering from your experience and Adobe's intent, what is the best practice to usually implement a visual component?

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• How can I personalize my MacBook Pro Touchpad?

  - by Barkerto

  I'm running Ubuntu 12.04 LTS on a MacBook Pro 5.5. I'm just wondering if there is something that takes all the kinks out of the touch-pad. It works good, but it feels sluggish, double tap works about 75% of the time and sometimes while I it somehow selects something on a different page (although I'm not sure if that has to deal with the touch-pad and not weird laptop bugs for a new LTS) If there are any programs, apps, commands aside from the built in system preferences mouse and track-pad touch-pad menu that allow someone to "optimize" touch-pad potential.

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• SEO: Joomla Category Page Optimization + Canonical Linking

  - by Huberis

  I'm wondering how best to optimize my Joomla site's SEO. I have pages with multiple articles on each page. Either via category-type pages, or via modules. In each case, I'm not wanting users to access the articles separately from the forward facing, menu-linked pages. I understand however that Joomla still generates a url for those articles, and Google can still crawl and display these articles separate from the pages. My question is what is the best way to control this so that my users get directed only to the front-facing pages? By using the canonical element for each article to point to the front-facing page it's on? Or is there a better method? Thanks for your help!

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• Search Engine Query Word Order

  - by EoghanM

  I've pages with titles like 'Alpha with Beta'. For every such page, there is an inverse page 'Beta with Alpha'. Both pages link to each other. When someone on Google searches for 'Beta with Alpha', I'd like them to land on the correct page, but sometimes 'Alpha with Beta' ranks higher (or vice versa). I was thinking of inspecting the referral link when a visitor arrives on my site, and silently redirecting them to the correct page based on what they actually searched for. Just wondering if this could be penalized by Google as 'cloaking/sneaky redirects'? Or is there a better way to ensure that the correct page on my site ranks higher for the matching query?

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