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  • Questionable ethics regarding closed source softwares which are supposed to be open source.

    - by edem
    Several days ago I heard a sentence "Cracking company name routers are not a crime.". I asked "Why?" and the guy explained to me that company name used a linux distribution on their routers which source can not be closed because of their license but company name closed it. What do you think about this? Doing otherwise unethical "cracking" becomes ethical, or somewhat neutral if the software in question is "cracked" too? By "cracking" I don't mean breaking into a computer through someones' company name router but "cracking" my own router's OS which otherwise would be unethical.

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  • Calculating a circle or sphere along a vector

    - by Sparky
    Updated this post and the one at Math SE (http://math.stackexchange.com/questions/127866/calculating-a-circle-or-sphere-along-a-vector), hope this makes more sense. I previously posted a question (about half an hour ago) involving computations along line segments, but the question and discussion were really off track and not what I was trying to get at. I am trying to work with an FPS engine I am attempting to build in Java. The problem I am encountering is with hitboxing. I am trying to calculate whether or not a "shot" is valid. I am working with several approaches and any insight would be helpful. I am not a native speaker of English nor skilled in Math so please bear with me. Player position is at P0 = (x0,y0,z0), Enemy is at P1 = (x1,y1,z1). I can of course compute the distance between them easily. The target needs a "hitbox" object, which is basically a square/rectangle/mesh either in front of, in, or behind them. Here are the solutions I am considering: I have ruled this out...doesn't seem practical. [Place a "hitbox" a small distance in front of the target. Then I would be able to find the distance between the player and the hitbox, and the hitbox and the target. It is my understanding that you can compute a circle with this information, and I could simply consider any shot within that circle a "hit". However this seems not to be an optimal solution, because it requires you to perform a lot of calculations and is not fully accurate.] Input, please! Place the hitbox "in" the player. This seems like the better solution. In this case what I need is a way to calculate a circle along the vector, at whatever position I wish (in this case, the distance between the two objects). Then I can pick some radius that encompasses the whole player, and count anything within this area a "hit". I am open to your suggestions. I'm trying to do this on paper and have no familiarity with game engines. If any software folk out there think I'm doing this the hard way, I'm open to help! Also - Anyone with JOGL/LWJGL experience, please chime in. Is this making sense?

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  • How to move a rectangle properly?

    - by bodycountPP
    I recently started to learn OpenGL. Right now I finished the first chapter of the "OpenGL SuperBible". There were two examples. The first had the complete code and showed how to draw a simple triangle. The second example is supposed to show how to move a rectangle using SpecialKeys. The only code provided for this example was the SpecialKeys method. I still tried to implement it but I had two problems. In the previous example I declared and instaciated vVerts in the SetupRC() method. Now as it is also used in the SpecialKeys() method, I moved the declaration and instantiation to the top of the code. Is this proper c++ practice? I copied the part where vertex positions are recalculated from the book, but I had to pick the vertices for the rectangle on my own. So now every time I press a key for the first time the rectangle's upper left vertex is moved to (-0,5:-0.5). This ok because of GLfloat blockX = vVerts[0]; //Upper left X GLfloat blockY = vVerts[7]; // Upper left Y But I also think that this is the reason why my rectangle is shifted in the beginning. After the first time a key was pressed everything works just fine. Here is my complete code I hope you can help me on those two points. GLBatch squareBatch; GLShaderManager shaderManager; //Load up a triangle GLfloat vVerts[] = {-0.5f,0.5f,0.0f, 0.5f,0.5f,0.0f, 0.5f,-0.5f,0.0f, -0.5f,-0.5f,0.0f}; //Window has changed size, or has just been created. //We need to use the window dimensions to set the viewport and the projection matrix. void ChangeSize(int w, int h) { glViewport(0,0,w,h); } //Called to draw the scene. void RenderScene(void) { //Clear the window with the current clearing color glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT|GL_STENCIL_BUFFER_BIT); GLfloat vRed[] = {1.0f,0.0f,0.0f,1.0f}; shaderManager.UseStockShader(GLT_SHADER_IDENTITY,vRed); squareBatch.Draw(); //perform the buffer swap to display the back buffer glutSwapBuffers(); } //This function does any needed initialization on the rendering context. //This is the first opportunity to do any OpenGL related Tasks. void SetupRC() { //Blue Background glClearColor(0.0f,0.0f,1.0f,1.0f); shaderManager.InitializeStockShaders(); squareBatch.Begin(GL_QUADS,4); squareBatch.CopyVertexData3f(vVerts); squareBatch.End(); } //Respond to arrow keys by moving the camera frame of reference void SpecialKeys(int key,int x,int y) { GLfloat stepSize = 0.025f; GLfloat blockSize = 0.5f; GLfloat blockX = vVerts[0]; //Upper left X GLfloat blockY = vVerts[7]; // Upper left Y if(key == GLUT_KEY_UP) { blockY += stepSize; } if(key == GLUT_KEY_DOWN){blockY -= stepSize;} if(key == GLUT_KEY_LEFT){blockX -= stepSize;} if(key == GLUT_KEY_RIGHT){blockX += stepSize;} //Recalculate vertex positions vVerts[0] = blockX; vVerts[1] = blockY - blockSize*2; vVerts[3] = blockX + blockSize * 2; vVerts[4] = blockY - blockSize *2; vVerts[6] = blockX+blockSize*2; vVerts[7] = blockY; vVerts[9] = blockX; vVerts[10] = blockY; squareBatch.CopyVertexData3f(vVerts); glutPostRedisplay(); } //Main entry point for GLUT based programs int main(int argc, char** argv) { //Sets the working directory. Not really needed gltSetWorkingDirectory(argv[0]); //Passes along the command-line parameters and initializes the GLUT library. glutInit(&argc,argv); //Tells the GLUT library what type of display mode to use, when creating the window. //Double buffered window, RGBA-Color mode,depth-buffer as part of our display, stencil buffer also available glutInitDisplayMode(GLUT_DOUBLE|GLUT_RGBA|GLUT_DEPTH|GLUT_STENCIL); //Window size glutInitWindowSize(800,600); glutCreateWindow("MoveRect"); glutReshapeFunc(ChangeSize); glutDisplayFunc(RenderScene); glutSpecialFunc(SpecialKeys); //initialize GLEW library GLenum err = glewInit(); //Check that nothing goes wrong with the driver initialization before we try and do any rendering. if(GLEW_OK != err) { fprintf(stderr,"Glew Error: %s\n",glewGetErrorString); return 1; } SetupRC(); glutMainLoop(); return 0; }

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  • How to build list of items available in World of Warcraft?

    - by Cyclops
    There are a number of non-Blizzard sites that show a complete list of available items in World of Warcraft (such as wowhead, etc). I would like to know the best (easiest) way to compile a similar list. I believe some sites are based on user-entered input, which I would like to avoid. Looking at the lua API, it seems that there are functions to get a list of items, but it's not clear if I can just download everything (I remember a reference to throttling somewhere, can't find it now). Does anyone have code samples that would do this, or links to source? Also, Eve Online has made a database of items available (and I do mean SQL database file for download, not the Armory) - is there anything similar for Wow? I'm just looking for the names and stats, not the graphic icons.

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  • Is it okay to have many Abstract classes in your application?

    - by JoseK
    We initially wanted to implement a Strategy pattern with varying implementations of the methods in a commmon interface. These will get picked up at runtime based on user inputs. As it's turned out, we're having Abstract classes implementing 3 - 5 common methods and only one method left for a varying implementation i.e. the Strategy. Update: By many abstract classes I mean there are 6 different high level functionalities i.e. 6 packages , and each has it's Interface + AbstractImpl + (series of Actual Impl). Is this a bad design in any way? Any negative views in terms of later extensibility - I'm preparing for a code/design review with seniors.

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  • What am I risking if I don't update my SDK/JDK and bundled runtime/JRE every time there's a security update?

    - by rob
    It seems like there's a new major security hole patched in Java every other week, and I would assume the same goes for other development platforms. After years of frustration trying to get customers to install and configure a compatible JRE on their systems, we started bundling one with our software. (By bundling, I mean we extract a copy of the JRE in our installation directory--we don't install the JRE and configure it as the system default.) The problem is, it's a hassle having to keep that JRE up-to-date because first we have to retest everything to make sure the update didn't break anything (it has broken some of our third-party dependencies in the past). How seriously, if at all, are we putting our customers at risk if we don't update our SDK/JDK and the runtime/JRE that we bundle with our product every time there's a security update? Is it reasonable to just update on a periodic schedule--say, once every 6 months or so?

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  • How do I install PHP 5.4.8 on a Win XP workstation?

    - by Cyberherbalist
    I am trying to create a MediaWiki site on my WinXP workstation, and need to install PHP 5.4.8. I have downloaded and unpacked the binaries for PHP, but the install instructions are telling me to "Run the MSI installer and follow the instructions provided by the installation wizard." Unfortunately there is no MSI file provided in the package! Am I missing something? Besides a clue, I mean. Edited to add: I will try to make this clear. I am not going to be able to work with Apache.

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  • How to manage the images for my Desktop Application

    - by NonExistent
    What's the better way to manage the image files of my app? i've been thinking about the way that i do right now (save the image as a BLOB IN db), and i ask myself if would be better to manage the image as text in my DB, i mean, convert the image to hex(length of 500), then save in the db as text, and when calling it convert it from hex to image, or something like that, but what do you consider as an Experienced Progammer that is the better way? Maybe the question is too broad, but i need to know that, and nobody answers me anywhere...

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  • Magento not responding to payment gateway notifications fast enough or at all?

    - by robgt
    Some of our customers are getting to the confirmation of payment step in purchasing from our Magento store, and then they are getting a timeout error, where the SagePay payment gateway is trying to contact our server to tell it that a payment was successful (or not…) but it cannot contact our server, or cannot get a response from our server in a timely manner, and then the payment/order is being cancelled. I've raised this question to my hosting company, but all they told me was: "This is down to the way the software is configured on your server" This is currently a Magento 1.4.0.1 standard installation as far as payment gateways are concerned. What on earth could this statement mean? Is there some configuration that I need to do to make Magento listen to these requests and respond properly?

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  • Social is the new search

    - by John Flyn
    before you read my question, I want to let you know that you have the freedom to delete or migrate this question. I know it probably doest not belog here, but I could not find any stackexchange site that I could ask this. ok. So, what does this "social is the new search" mean from a webmaster/dev standpoint? Does it even make sense? Or is is just some marketing BS. I'm trying to wrap my head around this, and it is just not clicking. And hearing the word "social" makes me wanna throwup sometimes. thanks in advance.

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  • Maya and Game Engines (i.e. Environment Testing)

    - by DiscreteGenius
    What does it mean if I'm designing an environment and I want to test it in the game engine, to see what its like to "run" [or fly] around my environment? I heard an instructor say that exact thing in a Maya training video and I'd like to know more about "How Game Engines and Maya are related to each other." He stated this would be done to see how things look in "size" (e.g. I assume he meant: 'How big is the cathedral, bridge, wall, building, etc.'). I've tried to research such information but it's too complicated, and detailed. I just want a simplistic response to my query. Thanks to everyone willing to help and not criticize my question.

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  • How do i get my taskbar back?

    - by tarrasch
    when i restarted my Ubuntu workstation after a crash of firefox my taskbar disappeared. what program do i need to start to get it back? what could be the reason for this? thanks edit: I mean the bar at the bottom of the screen, where the programs that are currently open are displayed. Also i remember i could switch from one virtual screen to the next one there. At the very right, there was a button on it that would minimize all windows and show the desktop.

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  • What to do when blocked

    - by darkcminor
    I began to code different for 3 different projects, and it is alright, I have done it for 5 months, some php, some c, some matlab, but for some reason I got stucked... Usually when I pass through this I leave a while or go to sleep (and while sleeping I'm thinking on a solution to the problem I´m currently facing, the most important or urgent), and usually when I return (If I slept well) I have the solution and code comes easily, I don not know what you think, but I have like 10 consecutive days! I can't get out of the hole, I only see how time is going... What do you do when you lose the inspiration (I know leave it a while works), I mean, when all seems like it is not working, no matter what you do. Some friends say Go get some air, do sports, well I have tried... I know lot of you have passed this stage but How...

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  • Get and set accessors do they protect different instances of a variable?

    - by Chris Halcrow
    The standard method of implementing get and set accessors in C# and VB.NET is to use a public property to set and retrieve the value of a corresponding private variable. Am I right in saying that this has no effect of different instances of a variable? By this I mean, if there are different instantiations of an object, then those instances and their properties are completely independent right? So I think my understanding is correct that setting a private variable is just a construct to be able to implement the get and set pattern? Never been 100% sure about this.

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  • How do you deal with transitions in animating walking?

    - by Aerovistae
    I'm pretty new to this whole animating models thing. Just learning the ropes. I got a nice walking animation going, which I can loop while a character is walking, but what about when they stop walking? I mean, they could be at any point in the animation at the time the player stops walking. How do I get them to smoothly return to a standing still position without having them snap into that position? The same goes for starting walking from a standing still position. Do you need a separate animation? How is this dealt with?

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  • Evolutions in Agile development field

    - by Samuel
    I recently pull up from under ten inches of dust one of my agile book. The book is now six years old; published in 2008. I prefer to keep it anonymous preventing to create a guerrilla of which one will yielded the best book about this subject. For that, I'm totally able to do a simple search from Amazon or Gooble to find the best book. I seen a couple of books about agile released in the last 2-3 years and I'm wondering if it will be a good investment to buy a more recent book than my old one. I mean, is there any great advancements in the last few years in the world of agile that worth to buy a more recent book? Thank you.

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  • Arranging the colors on the board in the most pleasing form

    - by Shashwat
    Given a rectangular board of height H and width W. N colors are given. ith color occupy Pi percentage of area on the board. Sum of Pis is 1. What can be algorithm to layout the colors on the board in the form of rectangles in the most pleasing form. By pleasing mean the aspect ratios (Width/Height) of rectangle of each color should be as close to 1 as possible. In an ideal case the board would be filled only with squares.

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  • X 11 Development Librararies

    - by user2592799
    I am new to ubuntu, I am using ubuntu 13.10, and trying to install NS-2. During the installation I am facing the following error; X11/Xlib.h: No such file or directory Then i tried to install sudo apt-get install libx11-dev This time I am facing the following error; Reading package lists... Done Building dependency tree Reading state information... Done Package libx11-dev is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package 'libx11-dev' has no installation candidate I have no idea how to deal it, Please help Thanks in advance

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  • Is it practical to have perfect validation score on HTML?

    - by Truth
    I was in a heated discussion the other day, about whether or not it's practical to have a perfect validation score on any HTML document. By practical I mean: Does not take a ridiculous amount of time compared to it's almost-perfect counterpart. Can be made to look good on older browsers and to be usable on very old browsers. Justifies the effort it may take to do so (does it come with some kind of reward on SEO/Usability/Accessibility that cannot be achieved in a simpler way with almost-perfect validation) So basically, is perfect validation score practical on any HTML document?

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  • Exadata - Following up on customer deployments

    - by Carlos M. Orozco -Oracle
    Over the last year or so I've been visiting customers who have had Exadata deployed and have been enjoying the benefits the platform has been providing. Benefits include greater performance, consolidating multiple databases, data compression and time to value improvements. Most often I hear my reports run faster. One hospitality company report times that used to take 3 hrs now run in 12 seconds. Another services company reported all their batch reports taking 11hrs now run in 38 mins. Also reported that their transactions post faster, and batch updates run faster. So what does that mean? For most of them it means that now they have a platform that can handle growth. Most are growing 15% organically, but I've also seen 40% growth thru acquisition. Exadata has been keeping up with the additional data demand by customers leveraging compression and the smart storage features.

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  • Is using build-in sorting considered cheating in practice tests?

    - by user10326
    I am using one of the practice online judges where a practice problem is asked and one submits the answer and gets back if it is accepted or not based on test inputs. My question is the following: In one of the practice tests, I needed to sort an array as part of the solution algorithm. If it matters the problem was: find 2 numbers in an array that add up to a specific target. As part of my algorithm I sorted the array, but to do that I used Java's quicksort and not implement sorting as part of the same method. To do that I had to do: java.util.Arrays.sort(array); Since I had to use the fully qualified name I am wondering if this is a kind of "cheating". (I mean perhaps an online judge does not expect this) Is it? In a formal interview (since these tests are practice for interview as I understand) would this be acceptable?

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  • Designing a user-defined list to be stored in a relational database - Should I include user index?

    - by Zaemz
    By index, I mean, as the user creates the list, each item receives an integer index for its place in that particular list. Since there will be a table of ListItems, I'd prefer to avoid using the name "Index" for the field. Then I was thinking - should I even include the list index in the database? I figured I would because the list would be created in the same fashion every time, then. Or I could order the list for the user based on its actual primary key, since the list items are created in succession anyway... What should I do?

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  • Wordpress Multisite Network installation and dev questions

    - by Daitya
    Please go easy on me. I'm a clutzy dinosaur. I currently have a large, unwieldy website hand-coded in html/css with php includes. It currently has a single WP installation in a subdirectory. The plan is to reorganize, and I want to use WP as the CMS and incorporate 3 WP blogs for 3 subdomains. Ideally, would like to create a WP multisite network to allow for further expansion and to save admin trouble. I just want to confirm that if I install WP in the root directory and create 3 blogs (in subdomains), does this mean my website's home page is the mother blog's index.php? Essentially, I will have created 4 blogs - mother at root and 3 children in subdomains? How to set this up on my Mac (OSX 10.5.8) running MAMP for development? And then how to migrate to server without breaking?

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  • IE9, LightSwitch Beta 2 and Zune HD: A Study in Risk Management?

    - by andrewbrust
    Photo by parl, 'Risk.’ Under Creative Commons Attribution-NonCommercial-NoDerivs License This has been a busy week for Microsoft, and for me as well.  On Monday, Microsoft launched Internet Explorer 9 at South by Southwest (SXSW) in Austin, TX.  That evening I flew from New York to Seattle.  On Tuesday morning, Microsoft launched Visual Studio LightSwitch, Beta 2 with a Go-Live license, in Redmond, and I had the privilege of speaking at the keynote presentation where the announcement was made.  Readers of this blog know I‘m a fan of LightSwitch, so I was happy to tell the app dev tools partners in the audience that I thought the LightSwitch extensions ecosystem represented a big opportunity – comparable to the opportunity when Visual Basic 1.0 was entering its final beta roughly 20 years ago.  On Tuesday evening, I flew back to New York (and wrote most of this post in-flight). Two busy, productive days.  But there was a caveat that impacts the accomplishments, because Monday was also the day reports surfaced from credible news agencies that Microsoft was discontinuing its dedicated Zune hardware efforts.  While the Zune brand, technology and service will continue to be a component of Windows Phone and a piece of the Xbox puzzle as well, speculation is that Microsoft will no longer be going toe-to-toe with iPod touch in the portable music player market. If we take all three of these developments together (even if one of them is based on speculation), two interesting conclusions can reasonably be drawn, one good and one less so. Microsoft is doubling down on technologies it finds strategic and de-emphasizing those that it does not.  HTML 5 and the Web are strategic, so here comes IE9, and it’s a very good browser.  Try it and see.  Silverlight is strategic too, as is SQL Server, Windows Azure and SQL Azure, so here comes Visual Studio LightSwitch Beta 2 and a license to deploy its apps to production.  Downloads of that product have exceeded Microsoft’s projections by more than 50%, and the company is even citing analyst firms’ figures covering the number of power-user developers that might use it. (I happen to think the product will be used by full-fledged developers as well, but that’s a separate discussion.) Windows Phone is strategic too…I wasn’t 100% positive of that before, but the Nokia agreement has made me confident.  Xbox as an entertainment appliance is also strategic.  Standalone music players are not strategic – and even if they were, selling them has been a losing battle for Microsoft.  So if Microsoft has consolidated the Zune content story and the ZunePass subscription into Xbox and Windows Phone, it would make sense, and would be a smart allocation of resources.  Essentially, it would be for the greater good. But it’s not all good.  In this scenario, Zune player customers would lose out.  Unless they wanted to switch to Windows Phone, and then use their phone’s battery for the portable media needs, they’re going to need a new platform.  They’re going to feel abandoned.  Even if Zune lives, there have been other such cul de sacs for customers.  Remember SPOT watches?  Live Spaces?  The original Live Mesh?  Microsoft discontinued each of these products.  The company is to be commended for cutting its losses, as admitting a loss isn’t easy.  But Redmond won’t be well-regarded by the victims of those decisions.  Instead, it gets black marks. What’s the answer?  I think it’s a bit like the 1980’s New York City “don’t block the box” gridlock rules: don’t enter an intersection unless you see a clear path through it.  If the light turns red and you’re blocking the perpendicular traffic, that’s your fault in judgment.  You get fined and get points on your license and you don’t get to shrug it off as beyond your control.  Accountability is key.  The same goes for Microsoft.  If it decides to enter a market, it should see a reasonable path through success in that market. Switching analogies, Microsoft shouldn’t make investments haphazardly, and it certainly shouldn’t ask investors to buy into a high-risk fund that is sold as safe and which offers only moderate returns.  People won’t continue to invest with a fund manager with a track record of over-zealous, imprudent, sub-prime investments.  The same is true on the product side for Microsoft, and not just with music players and geeky wrist watches.  It’s true of Web browsers, and line-of-business app dev tools, and smartphones, and cloud platforms and operating systems too.  When Microsoft is casual about its own risk, it raises risk for its customers, and weakens its reputation, market share and credibility.  That doesn’t mean all risk is bad, but it does mean no product team’s risk should be taken lightly. For mutual fund companies, it’s the CEO’s job to give his fund managers autonomy, but to make sure they’re conforming to a standard of rational risk management.  Because all those funds carry the same brand, and many of them serve the same investors. The same goes for Microsoft, its product portfolio, its executive ranks and its product managers.

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  • Can't install libapache2-mod-php5

    - by chris
    When I try to install libapache2-mod-php5, I get an error: Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help resolve the situation: The following packages have unmet dependencies: libapache2-mod-php5 : Depends: apache2-mpm-prefork (> 2.0.52) but it is not going to be installed or apache2-mpm-itk but it is not going to be installed E: Unable to correct problems, you have held broken packages. I have tried apt-get clean, update and upgrade, as well as -f install, and no change. Is there a way to fix this, or is there an easy way to manually install the php plugin?

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