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• In a multiplayer game, should I store the list of character names on the Player class?

  - by Gökhan Nas

  I am writing a multiplayer game that has account system and character creation system like standart MMORPGs. I have a question about name creating issue. I think that I can create a static variable on Player class that keeps created player names but it confused me. It will tell me name is valid or unvalid depends on the other players has this name. Questions; Does implementation does make sense ? If i have 1000 players, is it means it consumes 1000 times of memory of this list? Or it just consume as like there is one? What is your suggestion for place that I can keep player name list? A new class?

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• Secure Web Apps from SQL Injection in ASP.Net

  In the first part of this two-part series you learned how SQL injection works in ASP.NET 3.5 using a MS SQL database. You were also shown with a real web application which was not secure against SQL injection attacks how these attacks can be used by the hacker to delete sensitive information from your website such as database tables. In this part you will learn how to start securing your web applications so they will not be vulnerable to these kinds of exploits. A complete corrected example of the insecure web application will be provided at the end of this tutorial.... ALM Software Solution ? Try it live! Requirements Management, Project Planning, Implementation Tracking & QA Testing.

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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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• CakePHP pair programming practise

  - by The-Di-Lab

  We are on the stage of planning a CakePHP project. It is a relatively a big project for us, as a developer+project manager, I want to hire someone to work with me. But what I really want is to spend less time on actual coding, without losing control of the code quality. What I want to do is that I will design all the functions of the project in CakePHP, at least all the model's functions, and leave the implementation part to the coder who I am going to hire. But my worry is still if I am going to lose control of the code quality using this approach? is it feasible to do so or it is going to turn this project to a chaos. Thank you all in advanced for reading my question and give me answers.

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• La préversion de Visual Guard 5 disponible sur demande, l'outil de sécurisation et de gestion des rôles sortira officiellement le 30 juin

  La préversion de Visual Guard 5 disponible sur demande L'outil de sécurisation et de gestion des rôles sortira le 30 juin C'est officiel, Visual Guard 5 sortira le 30 juin 2012. Pour son éditeur, Novalys, il s'agit d'une version majeure qui doit « améliorer la facilité d'implémentation de l'outil dans des environnements hétérogènes ». Pour mémoire, Visual Guard (VG) est une solution modulaire flexible, « tout en un » (sic) qui propose de combiner authentification et permissions des utilisateurs (console d'administration centralisée, gestion des permissions et des rôles utilisateurs sans écrire de code, console web pour auditer les applis, etc.) La version 5 p...

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• Designing extensible, interactive systems

  - by vemv

  Steve Yegge's The Pinoccio Problem describes a very special type of program: one that not only fulfills the original purpose of its creators, but also is capable of performing arbitrary, user-defined computations. They typically also host a console, by which one can reprogram the software on runtime, maybe persisting the modifications. I find this problem very hard to reason about - there seems to be a conflict between implementing the 'core modules' of a program, and making the system really implementation-agnostic (i.e. no functionality is hard-coded). So, how to architecture such a program - what techniques can help? Is it a well-studied topic?

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• Off the Charts: Getting Cost Data into Google Analytics

  Off the Charts: Getting Cost Data into Google Analytics With Analytics' new Cost Data Upload feature, users can measure and analyze non-Google cost data to calculate paid campaign effectiveness. Developers are able to build solutions to upload exported cost data into Analytics so marketers can have a unified view of their campaign spend - all within the Google Analytics interface. Join Google Analytics' Developer Advocate Pete Frisella to dive into the implementation of this new feature through the robust Analytics APIs. From: GoogleDevelopers Views: 0 0 ratings Time: 30:00 More in Science & Technology

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• Examples of Android Joystick Controls? [on hold]

  - by KRB

  I can't seem to find any well executed code examples for Android joystick controls. Whatever it may be, algorithms, pseudo code, actual code examples, strategies, or anything to assist with the design and implementation of Android joystick controls; I can't seem to find anything decent on the net. What are some well executed examples? More specifically, Pseudo Code Current Examples Idea/Design Functionality Description Controller Hints Related Directly to Android Architecture What kind of classes will I have making this? Will there be only one? How would this be implemented to the game architecture? All things I am thinking about. Cheers! UPDATE I've found this on the subject Joystick Example1, though I am still looking for different examples/resources. Answered my own question with a link to the code of the above video. It's a fantastic start to Android Joystick Controls.

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• Is there a 'design pattern' type listing of common algorithms?

  - by KevinM1

  Is there a 'design pattern' styled listing of common/popular algorithms anywhere? Specifically, something that has a similar format along the lines of: Algorithm Name: e.g., Quick Sort, Bubble Sort, etc. Problem: A description of the stereotypical problem the algorithm is supposed to address Description: Description of the solution Implementation: Code examples of the solution Big O Rating: Self-explanatory Similar Algorithms: Algorithms that address the same problem in different ways, or similar problems I really like the GoF design pattern listing style, and I think it would help me learn various algorithms better/easier if I could find a resource that was similar in terms of organization.

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• How Do You Test Your Software ?

  - by Kubi

  I'm currently working on 2 software projects: A Social Networking Web Site for an NGO A Patient Management System for a hospital Although I've been programming for 5 years, I can't just say that I'm very good at testing or Test Driven Designing an application. How would you arrange your Software Testing before coding phase, during coding and after you finished the coding phase for a. providing stakeholders with information about the quality of the product or service under test. b. providing an objective, independent view of the software to allow the business to appreciate and understand the risks of software implementation. and how do you understand that your program/application/product c. meets the business and technical requirements that guided its design and development d. works as expected p.s. please feel free to edit the question since my english is not very powerful.

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• Languages with C/C++ output [closed]

  - by Vag

  Which languages have compilers able to emit plain standard C/C++ code? For a start: Haxe // uses Boehm GC Haskell (JHC) Haskell (old GHC) // -fvia-c, removed recently (emitted code is super ugly) Clay ATS Cython RPython (Shed Skin) // experimental RPython (PyPy) Python (Nuitka) // although author claims there are no speedups Common Lisp (ECL) COBOL (OpenCobol) Scheme (Chicken) APL // So far I've not found working implementation available for free download Ur/Web // GCC-specific output, and intended to be used only for web developments (included for completeness only) I'd like to build comprehensive up-to-date list but found only these ones so far. I've tested only Haxe and it works pretty well and quite fast. What about other ones? What is your expirience? How much ugly is generated code? Update. Any language chains (e.g. X - Scheme - C) will be perfectly OK as answer if its use is practical enough and suited for production use.

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• Why does Linq to Entity Sum return null when the list is empty?

  - by Hannele

  There are quite a few questions on Stack Overflow about the Linq to Entity / Linq to SQL Sum extension method, about how it returns null when the result set is empty: 1, 2, 3, 4, 5, 6, 7, and many more, as well as a blog post discussing the issue here. Now, I could go a flag these as duplicates, but I feel it is still an inconsistency in the Linq implementation. I am assuming at this point that it is not a bug, but is more or less working as designed. I understand that there are workarounds (for example, casting the field to a nullable type, so you can coalesce with ??), and I also understand that for the underlying SQL, a NULL result is expected for an empty list. But because the result of the Sum extension for nullable types is also not nullable, why would the Linq to SQL / Linq to Entity Sum have been designed to behave this way?

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• Exalytics at Partners in EMEA

  - by Mike.Hallett(at)Oracle-BI&EPM

  Many partners have got Oracle Exalytics systems on their premises where they can help customers with proof-of-solution demonstrations to show how fast this engineered in-memory analytics solution can be, and how this translates into tangible business benefits.  Any customer with Oracle Analytics (OBIEE, Essbase, Hyperion Planning, Oracle BI-Applications) who is seeking to upgrade their hardware infrastructure, looking for a quick, low risk and cost effective implementation, should contact one of these to test what an Exalytics can do for them. Below is a list of some of our specialist Oracle Partners who have an Exalytics: http://www.arrowecs.fr/produits/index.php?id=82 France http://www.ise-informatik.de/ Germany http://www.hotitem.nl/ Netherlands http://bi.fors.ru/ Russia http://www.synchrotech-group.com/ Switzerland http://www.linkplus.com.tr/ Turkey http://www.rittmanmead.com/ UK

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• https (SSL) instead of http

  - by user1332729

  I am building myself a new website, out of privacy and security concerns I am contemplating trying to make it https only. It will be mobile-friendly using media queries but I am concerned--especially for mobile users--about the increased bandwidth. How much will doing so increase my bandwidth or slow load times? For pages where I'm not transferring sensitive information, should I leave external links (to a jQuery library, or a web font for instance) in http? Simply put, I have read articles saying the entire web would be more secure if everything was SSL but my actual knowledge of implementation is limited to payment gateways and log-in pages and such. I apologize for the open-ended nature of the question but anything, even just simple answers to the specific questions is welcomed.

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• Acceleration Based Player Movement

  - by Mike Sawayda

  Ok, so I am making a first person shooter game and I am currently working on movement that looks and feels good. I want to incorporate acceleration based movement for the player so that he has to accelerate to max speed and decelerate to minimum speed. Acceleration will happen when you have the key pressed and deceleration will happen when you let go of that key. The problem is that there are some instances where you switch from moving forward to moving backward where no deceleration is needed because you could potentially be moving at double speed in the reverse if you did. Does anyone have a good implementation of how to accomplish acceleration based movement that works well?

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• Data-driven animations

  - by saadtaame

  Say you are using C/SDL for a 2D game project. It's often the case that people use a structure to represent a frame in an animation. The struct consists of an image and how much time the frame is supposed to be visible. Is this data sufficient to represent somewhat complex animation? Is it a good idea to separate animation management code and animation data? Can somebody provide a link to animations tutorials that store animations in a file and retrieve them when needed. I read this in a book (AI game programming wisdom) but would like to see a real implementation.

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• Separating merged array of arithmetic and geometric series [closed]

  - by user1814037

  Possible Duplicate: Separating merged array of arithmetic and geometric series My friend asked me an interseting question. Given an array of positive integers in increasing order. Seperate them in two series, an arithmetic sequence and geometric sequence. The given array is such that a solution do exist. The union of numbers of the two sequence must be the given array. Both series can have common elements i.e. series need not to be disjoint. The ratio of the geometric series can be fractional. Example: Given series : 2,4,6,8,10,12,25 AP: 2,4,6,8,10,12 GP: 4,10,25 I tried taking few examples but could not reach a general way. Even tried some graph implementation by introducing edges if they follow a particular sequence but could not reach solution.

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• Can I use metro style interface in my own web application?

  - by LukeP

  I am wondering if I would need to license the Metro style or if I can just freely use it in my own applications. I mean, is it patented or protected in any way that would prevent me from building my own implementation? I effectively would like to copy the visible part of it. I like to idea of being able to: Provide an interface which is used somewhere else (as in 1 less to learn) Use the interface that has been tested for usability (I personally like it) Have the possibility of getting free publicity because of implementing full Metro style web application while not associated with Microsoft, etc.

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• Does a code inherit GNU GPL if it just link to GPL library?

  - by user14284

  Sorry for bad English. Suppose there is a library xxx under GNU GPL, that provide a function yyy. Suppose my code links to the library and use this function. Does my code inherit GPL license? IANAL, but my thoughts are conflicting: On one hand, my code is derivative from the library, so it should inherit GPL. On other hand, my code just use link to the xxx. Maybe there are other libraries, that has the same interface (particularly, they provide yyy function with same functionality, but different implementation). My code may link to any. My code really doesn't directly derived from xxx, it just use its interface. So, my code shouldn't inherit GPL. I'm confused. ADDED. The question is absolutely abstract. I don't mean any concrete GPL library.

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• Cognizant: commited in Oracle Fusion Applications and Oracle Cloud

  - by Richard Lefebvre

  Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 Cognizant is a Global System Integrator strongly committed in Oracle Fusion Applications and Oracle Cloud, offering fixed scope implementation. In this short video, you can learn more about Cognizant strategy, experience and offerings Cognizant is Platinum Partner specialized in several Oracle Fusion Cloud Service areas /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";}

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• Script to calculate the Median value for SQL Server data

  The standard SQL language has a number of aggregate functions like: SUM, MIN, MAX, AVG, but a common statistics function that SQL Server does not have is a built-in aggregate function for median. The median is the value that falls in the middle of a sorted resultset with equal parts that are smaller and equal parts that are greater. Since there is no built-in implementation for the median, the following is a simple solution I put together to find the median. Get smart with SQL Backup ProPowerful centralised management, encryption and more.SQL Backup Pro was the smartest kid at school. Discover why.

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• Chromium et Qt rassemblés dans QtWebEngine, un prototype intègre le navigateur open source dans des interfaces Qt Quick

  Un certain temps après le port de Firefox sur Qt en lieu et place de GTK+, c'est au tour de Chromium, la version open source du navigateur Web de Google, d'être le sujet d'expérimentations. Ce projet ne se compose pas que d'un moteur de rendu, il s'agit d'une implémentation complète d'une plateforme Web, de la pile de protocoles réseau au framework multimédia, le tout disponible sur un grand nombre de plateformes (tout comme Qt). L'objectif récemment poursuivi par des employés de Digia était de laisser des développeurs Qt utiliser des briques de l'environnement Chromium, au sein même de Qt Quick 2 et des widgets. Il s'agi...

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• Implementing `let` without using a macro

  - by Matt Fenwick

  I'm learning Lisp, and I've just gotten to let, which I don't quite understand (the implementation of). A common definition for it is given in terms of lambda as a macro. However, nowhere have I seen that let must be implemented as a macro or in terms of lambda. Is it possible to define let without using a macro or lambda? I know it can be implemented as a primitive, but I want to know whether it can be implemented in Lisp without creating a macro -- by creating a special form or a function.

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• What are the benefits of NoSQL?

  - by geekbrit

  I'm struggling to see how NoSQL brings any advantages to a system, so I'm interested in hearing from people who have chosen to use it, both the reasons they chose NoSQL, and positive and negative experiences in implementation and use. My first impressions are that NoSQL is a product of the availability of very large, very cheap storage; it seems that a million record database could easily have a 100MByte overhead in field labels embedded in the records. This goes against one of my software design instincts - remove redundancy in code and data whenever practical. However, NoSQL is being used with success in large high-traffic systems, so I must be missing something, looking forward to your responses.

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• Shared memory multiprocesses

  - by poly

  I'm building an multi processes application and I need to save session ID, the sessions ID is 32 bit, and of course it can't be used twice in its lifetime, I'm currently using DB that saves all the ID in a table, and I do the following, ID table is (int key, char used(1)) //1 is used, 0 is not 1. lock table 2. get one key for one sessions 3. update used field in it to used 4. unlock After the session is finished the process use below to free key, 1. lock table 2. update used field in it to not used 4. unlock I'm really wondering whether this is a good/fast implementation. and please note it's multi processes application.

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