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  • game play strategy in an arena

    - by joulesm
    I am writing a player's behavior for an arena game, and I'm wondering if you can offer some strategies. I'm writing it in Python, but I'm just interested in the high level game play. Here are the game aspects: Arena is a circle of a given size. The arena size shrinks every round to help break ties. Players are much smaller circles, can be on teams of 1 or 2 players. Players attack by colliding with other players, and based on the physics of the collision (speed of both players, angle), one could force another player out of the arena. Once a player is out of the arena, they are out of the game (for that round). The goal is to be the only team with players left in the arena. All other players have been pushed (through collisions or mistakes) out of the arena. It is possible for there to be no winner if the last two players exit the arena at the same time. Once the player has been programmed, the game just runs. There is no human intervention in the game. I'm thinking it's easiest to implement a few simple programmatic rules for my player to follow. For example, stay close to center of the arena, attack opponents from the inner side of the arena, etc. Are there any good simple game strategies? Would adding a random aspect to the game help? For example, to avoid predictability by the other team or something. Thanks in advance.

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  • Windows Physical Direct Memory Mapping

    - by chrisjleaf
    I'm a bit disappointed there is almost no discussion of this no matter where I look so I guess I'll have to ask. I'm writing a cross platform memory bench marking application which requires direct physical address mapping rather than virtual addressing. EDIT The solution would look something like the Linux/Unix system calls: int fd = open("/dev/mem", O_RDONLY); mmap(NULL, len, PROT_READ, MAP_SHARED, fd, PHYSICAL_ADDRESS_OFFSET); which will require the kernel to either give you a virtual page mapping to the desired physical address or return that it failed. This does require supervisor privileges but that is ok. I have seen a lot of information about shared memory and memory mapped files but all of these reside on disc and are thus not really useful when I'm trying to make a system dependent read. It is very similar to writing an IO driver although I do no need write permissions to the physical address. This site gives an example of how to do it on a driver level using the Windows Driver Kit: NT Insider: Sharing Memory between drivers and applications This solution would probably require Visual Studio which currently I do not have access to. (I have downloaded the WDK api but it complained about my use of GCC for Windows). I'm traditionally a Linux programmer so I'm hoping there might be something really simple I'm missing. Thanks in advance if you know something I don't!

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  • Caching by in-memory dictionaries. Are we doing it all wrong?

    - by user73983
    This approach is pretty much the accepted way to do anything in our company. A simple example : when a piece of data for a customer is requested from a service, we fetch all the data for that customer(relevant part to the service) and save it in a in-memory dictionary then serve it from there on following requests(we run singleton services). Any update goes to DB, then updates the in memory dictionary. It seems all simple and harmless but as we implement more complicated business rules the cache gets out of sync and we have to deal with hard to find bugs. Sometimes we defer writing to database, keeping new data in cache till then. There are cases when we store millions of rows in memory because the table has many relations to other tables and we need to show aggregate data quickly. All this cache handling is a big part of our codebase and I sense this is not the right way to do it. All of this juggling adds too much noise to the code and it makes it hard to understand the actual business logic. However I don't think we can serve data in a reasonable amount of time if we have to hit the database every time. I am unhappy about the current situation but I don't have a better alternative. My only solution would be to use NHibernate 2nd level cache but I have nearly no experience with it. I know many campanies use Redis or MemCached heavily to gain performance but I have no idea how I would integrate them into our system. I also don't know if they can perform better than in-memory data structures and queries. Are there any alternative approaches that I should look into?

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  • Start building websites using Java

    - by Alex coady
    I'm a web developer and I've used PHP, along with MySQL, Javascript, jQuery etc; all of which I'm very confident with and can use on a professional level. What I'm wanting to do however, is to start using Java instead of PHP as I'm creating sites that need to be scalable. I really need a starting point. I can program in Java, I understand the language but have never used it for the web. Links, tutorials, examples would be a great help. I have also considered using Scala (the language Twitter is written in).. but don't really understand the benefits. Please no jargon; I need clear information that essentially takes me through the process of creating a very simple website using Java; I'm more than capable of building the site once that's done.. I think. I've previously used Eclipse so if assume I can. Thanks in advance!

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  • MVC: How to Implement Linked Views?

    - by cw'
    I'm developing a java application to visualize time series. I need (at least) three linked views, meaning that interaction with one of them updates the others. The views are: A list represents the available and currently selected time series. The selected time series are used as input for subsequent computations. Changing the selection should update the other views. A line chart displays the available and selected time series. Time series should be selectable from here by clicking on them. A bar chart shows aggregated data on time series. When zooming in to a period of time, the line chart should zoom in to the same period (and vice versa). How to implement this nicely, from a software engineering point of view? I.e. I'd like to write reusable and clear, maintainable code. So I thought of the MVC pattern. At first I liked the idea of having the three view components observing my model class and to refresh views upon being notified. But then, it didn't feel right to store view related data in the model. Storing e.g. the time series selection or plot zoom level in the model makes implications about the view which I wouldn't want in a reusable model. On the other hand, having the controllers observe each other results in a lot of dependencies. When adding another view, I'd have to register all other views as observer of the new view and vice versa, passing around many references and introducing dependencies. Maybe another "model" storing only view-related data would be the solution?

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  • Can the "Documents" standard folder be rescued and how?

    - by romkyns
    Anyone who likes their Documents folder to contain only things they place there knows that the standard Documents folder is completely unsuitable for this task. Every program seems to want to put its settings, data, or something equally irrelevant into the Documents folder, despite the fact that there are folders specifically for this job. So that this doesn't sound empty, take my personal "Documents" folder as an example. I don't ever use it, in that I never, under any circumstances, save anything into this folder myself. And yet, it contains 46 folders and 3 files at the top level, for a total of 800 files in 500 folders. That's 190 MB of "documents" I didn't create. Obviously any actual documents would immediately get lost in this mess. My question is: can anything be done to improve the situation sufficiently to make "Documents" useful again, say over the next 5 years? Can programmers be somehow educated en-masse not to use it as a dumping ground? Could the OS start reporting some "fake" location hidden under AppData through the existing APIs, while only allowing Explorer and the various Open/Save dialogs to know where the "real" Documents folder resides? Or are any attempts completely futile or even unnecessary?

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  • Can it be a good idea to lease a house rather than a standard office-space for a software development shop? [closed]

    - by hamlin11
    Our lease is up on our US-based office-space in July, so it's back on my radar to evaluate our office-space situation. Two of our partners rather like the idea of leasing a house rather than standard office-space. We have 4 partners and one employee. I'm against the idea at this moment in time. Pros, as I see them Easier to get a good location (minimize commutes) All partners/employees have dogs. Easier to work longer hours without dog-duties pulling people back home More comfortable bathroom situation Residential Internet Rate Control of the thermostat Clients don't come to our office, so this would not change our image The additional comfort-level should facilitate a significantly higher-percentage of time "in the zone" for programmers and artists. Cons, as I see them Additional bills to pay (house-cleaning, yard, util, gas, electric) Additional time-overhead in dealing with bills (house-cleaning, yard, util, gas, electric) Additional overhead required to deal with issues that maintenance would have dealt with in a standard office-space Residential neighbors to contend with The equation starts to look a little nasty when factoring in potential time-overhead, especially on issues that a maintenance crew would deal with at a standard office complex. Can this be a good thing for a software development shop?

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  • LDAP ACI Debugging

    - by user13332755
    If you've ever wondered which ACI in LDAP is used for a special ADD/DELETE/MODIFY/SEARCH request you need to enable ACI debugging to get details about this. Edit/Modify dse.ldifnsslapd-infolog-area: 128nsslapd-infolog-level: 1ACI Logging will be placed at 'errors' file, looks like: [22/Jun/2011:15:25:08 +0200] - INFORMATION - NSACLPlugin - conn=-1 op=-1 msgId=-1 -  Num of ALLOW Handles:15, DENY handles:0 [22/Jun/2011:15:25:08 +0200] - INFORMATION - NSACLPlugin - conn=-1 op=-1 msgId=-1 -  Processed attr:nswmExtendedUserPrefs for entry:uid=mparis,ou=people,o=vmdomain.tld,o=isp [22/Jun/2011:15:25:08 +0200] - INFORMATION - NSACLPlugin - conn=-1 op=-1 msgId=-1 -  Evaluating ALLOW aci index:33 [22/Jun/2011:15:25:08 +0200] - INFORMATION - NSACLPlugin - conn=-1 op=-1 msgId=-1 -  ALLOW:Found READ ALLOW in cache [22/Jun/2011:15:25:08 +0200] - INFORMATION - NSACLPlugin - conn=-1 op=-1 msgId=-1 -  acl_summary(main): access_allowed(read) on entry/attr(uid=mparis,ou=people,o=vmdomain.tld,o=isp, nswmExtendedUserPrefs) to (uid=msg-admin-redzone.vmdomain.tld-20100927093314,ou=people,o=vmdomain.tld,o=isp) (not proxied) (reason: result cached allow , deciding_aci  "DA anonymous access rights", index 33)

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  • How-To: Run CMSDK against a RAC cluster

    - by frank.closheim
    Using CMSDK in a production environment often requires a robust, reliable and failover enabled repository. When using Oracle Real Application Cluster (RAC) with your CMSDK repository you need to have a specific configuration in place to support such a setup. This post will explain the configuration steps required when running CMSDK 9.0.4.6 with Oracle WebLogic Server (WLS).In the previous CMSDK 9.0.4.2 version a RAC enabled connect string looked like this: (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = rac1)(PORT = 1521))(ADDRESS = (PROTOCOL = TCP)(HOST = rac2)(PORT = 1521))(LOAD_BALANCE = NO)(FAILOVER = ON)(CONNECT_DATA =(SERVICE_NAME = rac)(failover_mode = (type=select)(method=basic)))CMSDK 9.0.4.6 makes use of data sources to connect to the underlying database. These data sources are configured inside your Application Server, such as Oracle WebLogic Server.In Oracle WebLogic Server 10.3.4, a single data source implementation has been introduced to support an RAC cluster. It responds to Fast Application Notification (FAN) events to provide Fast Connection Failover (FCF), Runtime Connection Load-Balancing (RCLB), and RAC instance graceful shutdown. XA affinity is supported at the global transaction Id level. The new feature is called WebLogic Active GridLink for RAC; which is implemented as the GridLink data source within WebLogic Server.This GridLink data source also works with Oracle Single Client Access Name (SCAN). SCAN is a feature used in RAC environments that provides a single name for clients to access any Oracle Database running in a cluster. You can think of SCAN as a cluster alias for databases in the cluster. The benefit is that the client’s connect information does not need to change if you add or remove nodes or databases in the cluster.The CMSDK 9.0.4.6 documentation describes how to create a regular JDBC data source named jdbc/OracleDS. Please refer to the following document which describes in detail how to create a GridLink data source in WLS.

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  • C# class architecture for REST services

    - by user15370
    Hi. I am integrating with a set of REST services exposed by our partner. The unit of integration is at the project level meaning that for each project created on our partners side of the fence they will expose a unique set of REST services. To be more clear, assume there are two projects - project1 and project2. The REST services available to access the project data would then be: /project1/search/getstuff?etc... /project1/analysis/getstuff?etc... /project1/cluster/getstuff?etc... /project2/search/getstuff?etc... /project2/analysis/getstuff?etc... /project2/cluster/getstuff?etc... My task is to wrap these services in a C# class to be used by our app developer. I want to make it simple for the app developer and am thinking of providing something like the following class. class ProjectClient { SearchClient _searchclient; AnalysisClient _analysisclient; ClusterClient _clusterclient; string Project {get; set;} ProjectClient(string _project) { Project = _project; } } SearchClient, AnalysisClient and ClusterClient are my classes to support the respective services shown above. The problem with this approach is that ProjectClient will need to provide public methods for each of the API's exposed by SearchClient, etc... public void SearchGetStuff() { _searchclient.getStuff(); } Any suggestions how I can architect this better?

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  • decent use-case for goto in c?

    - by Robz
    I really hesitate to ask this, because I don't want to "solicit debate, arguments, polling, or extended discussion" but I'm new to C and want to gain more insight into common patterns used in the language. I recently heard some distaste for the goto command, but I've also recently found a decent use-case for it. Code like this: error = function_that_could_fail_1(); if (!error) { error = function_that_could_fail_2(); if (!error) { error = function_that_could_fail_3(); ...to the n-th tab level! } else { // deal with error, clean up, and return error code } } else { // deal with error, clean up, and return error code } If the clean-up part is all very similar, could be written a little prettier (my opinion?) like this: error = function_that_could_fail_1(); if(error) { goto cleanup; } error = function_that_could_fail_2(); if(error) { goto cleanup; } error = function_that_could_fail_3(); if(error) { goto cleanup; } ... cleanup: // deal with error if it exists, clean up // return error code Is this a common or acceptable use-case of goto in C? Is there a different/better way to do this?

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  • The latest version of the EJB 3.2 spec available on java.net project

    - by Marina Vatkina
    If you are not following us on the users alias, here is a quick update. Just before JavaOne, I uploaded the latest version of the EJB 3.2 Core document to the ejb-spec.java.net downloads. If you want to see the detailed changes, download it If you are interested in the high-level list, or would like to know what to look for, this is the list of changes since the previous version (found on the same download page): Specified that the SessionContext object in a the singleton session bean is thread-safe Clarified that the EJB timers distribution and failover rules apply only to persistent timers Clarified that non-persistent timers returned by getTimers and getAllTimers methods are from the same JVM as the caller Fixed section numbering (left over after moving it to its own chapter) in Ch 17 Noted that only 3.0 and 3.1 deployment descriptors are required to be supported in EJB 3.2 Lite for prior versions of the applications Fixes for EJB_SPEC-61 (Ambiguity in EJB lite local view support) and EJB_SPEC-59 (Improve references to the component-defining annotations) JMS/MDB changes: added new standard activation properties and the unique identifier, and rearranged sections for easier navigation Fixed unresolved cross-refs Updated the rule: only local asynchronous session bean invocations are supported in EJB 3.2 Lite Synchronized permissions in the Table with the permissions listed for the EJB Components in the Java EE Platform Specification Table EE.6-2 Specified that during processing of the close() method, the embeddable container cancels all pending asynchronous invocations and non-persistent timers Updated most of the referenced documents to their latest versions Happy reading!

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  • When is the right time to join open source project for programmer?

    - by Mahesh
    Most of the newcomers in programming start with basic projects to start with programming. Most of the C++ progammers spend some time with puzzles and contests but this is not always helpful. Sometimes you've to spend some time on real projects. Starting your own open source project could be a problem in self-learning for newbie cause of lack of mentors and peers who can't look at your code and give suggestions. Open source projects can solve this problem, some projects could be best suited for new programmers. Besides everybody is newbie at some point. So i'll try and make this question a bit from beginners perspective. I tried few questions on stack overflow before asking this like How do i join & Bare minimum you need and how to get involved with open source and what level of programming etc. But this is not helping me when it comes to self-evaluating with skills. How to find that out ? How can i check what it takes to join open source project and am i really that comfortable with huge source code etc. My question is when to consider yourself comfortable joining open source programming ? I mean how will you test yourself that you're ready to take burden of big/small projects of open source ? how will you test yourself to see if you could work with version control/other programmers/tight schedule etc ?

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  • Brightness going up to 100% on loading certain websites in Chrome

    - by picheto
    I'm using Google Chrome version 21.0.1180.89 on Ubuntu 12.04 and my laptop is a Sony VAIO VPCCW15FL (spec sheet). My video driver is the propietary "NVIDIA accelerated graphics driver (post-release updates)(version-current updates)". After installing Ubuntu, I discovered that neither the brightness control buttons (hardware) or the brightness slider (software) worked, and found out I could get the hardware buttons to work by installing the nvidiabl.deb package and oBacklight script. I'm using nvidiabl-dkms 0.77 and oBacklight 0.3.8. Still, the slider on the Ubuntu "Settings" does not work, but I don't care. There is an annoying thing happening when loading certain pages in Google Chrome: the brightness goes up to 100% when loading the webpage or when leaving it (closing the tab or typing a different URL on the omnibox). However, the "brightness tooltip" (that default brightness notification) remembers the position it was set to, so if I adjust the brightness with the HW buttons, the level gets adjusted relative to the value it was set to before "going 100%". I disabled the flash PPAPI plugin, but left the NPAPI plugin enabled, and the problem went away for pages with flash content. Still, the same thing happens when viewing HTML5 video, or when loading, for example, the Chrome Web Store or using the Scratchpad extension. I suppose it has to do with the rendering of certain elements using the GPU, but this is just a guess. This brightness thing does not happen when using Firefox 15.0 or any other application I have used yet. Does anybody know why this may be happening and what could I do to fix this without changing browser? Thanks a lot.

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  • How to model the components of a non Information System?

    - by Adel C Kod
    So I am working on a project that's related to the Kernel code(specifically related to the TCP/IP stack of the kernel). I need to build some models to describe the functionality and components of my system. Initially I thought about Class Diagram, it can describe the general architecture of my system but it doesn't make sense since my code is VERY structured(written in standard C). I also thought about DFDs, they'd describe the processes of my system, and how the data is flowing. But they contain something which doesn't really fit in; data-storages. I have no databases here(at all). For the functionality, other team members suggested using Activity and Sequence diagrams, which is kinda okay with me, but what about the system components? So basically my question is; I want to describe the components of my system; what do you suggest as a meaningful diagram to follow? (Again, the project is a research low-level systems-oriented project with almost no user-interface at all)

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  • Opportunities in Cloud Computing

    - by Paul Sorensen
    A recent article from CIO Journal indicates that there is an extreme labor shortage (in certain technology areas) that is is leading to upward pressure on wages for IT Workers. This represents a great opportunity for those with certain skill-sets, among which include Java (Oracle certification is mentioned specifically). The article points out that a key driver of the labor shortage is the expansion of cloud computing. Cloud computing is set up to make life extremely simple for end-users, but the model pushes the complexity to back-end systems which are sophisticated, enterprise-level computing stacks (Oracle has an extensive set of cloud computing solutions). These complex systems require very highly-skilled IT professionals (the best-of-the-best) to successfully develop, implement, administer and maintain them. What this mean for you is that there is opportunity for those who have the appropriate skills at the appropriate levels. If you want to be a part of this opportunity you should do a self-assessment of your own skill-sets and experience. Based upon your results you can decide where it would be most appropriate to spend your time and resources for the highest return on your investment. By expanding and sharpening your skills and by gaining greater experience you will be better prepared to take advantage of career opportunities (like this) that come along periodically. As you evaluate your needs remember that Oracle University has a tremendous selection of high-quality eduction offerings (including training and certification) that can you help move your career forward. Thanks and best of luck!

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  • What is the best way to exploit multicores when making multithread games?

    - by Keeper
    Many people suggest to write a program, and then start optimizing it. But I think that when it's coming to multithreading with multicore, a little think ahead is required. I've read about using threads, and experienced it myself during some courses at the university (still a student). The big question is simple, but a bit abstract: What thread related steps in game design do I need to take, before implementation? Now trying to be more specific. Let's say, as an example, that I'm making a small board game (like Monopoly) that I want to be multithreaded. My goal Is that this multithreaded game will exploit the best of the multicore system, lets say 4-6 cores (like in i7 processors). My answer to this question at the moment is, one thread for each of these four basic components: GUI User Input / Output AI (computer rival) Other game related calculations (like shortest path from A to B, or level up status change) I'm not an expert (yet!), and I'm sure there are better answers out there. Any suggestion, answer, different approach will be helpful. Some thoughts: Maybe splitting the main database is a good way.. (or total disaster.. )

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  • Splitting a tetris game apart - where to put time-management?

    - by nightcracker
    I am creating a tetris game in C++ & SDL, and I'm trying to do it "good" by making it object-oriented and keeping scopes small. So far I have the following structure: A main with some lowlevel SDL set up and handling input A game class that keeps track of score and provides the interface for main (move block down, etc) A map class that keeps track of the current game field, which blocks are where. Used by the game class. A block class that consists of the current falling block, used by game. A renderer class abstracting low level SDL to a format where you render "tetris blocks". Used by map and block. Now I have a though time where to place the time-management of this game. For example, where should be decided when a block bumps the bottom of the screen how long it takes the current block locks in place and a new block spawns? I also have an other unrelated question, is there some place where you can find some standard data on tetris like standard score tables, rulesets, timings, etc?

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  • For an ORM supporting data validation, should constraints be enforced in the database as well?

    - by Ramnique Singh
    I have always applied constraints at the database level in addition to my (ActiveRecord) models. But I've been wondering if this is really required? A little background I recently had to unit test a basic automated timestamp generation method for a model. Normally, the test would create an instance of the model and save it without validation. But there are other required fields that aren't nullable at the in the table definition, meaning I cant save the instance even if I skip the ActiveRecord validation. So I'm thinking if I should remove such constraints from the db itself, and let the ORM handle them? Possible advantages if I skip constraints in db, imo - Can modify a validation rule in the model, without having to migrate the database. Can skip validation in testing. Possible disadvantage? If its possible that ORM validation fails or is bypassed, howsoever, the database does not check for constraints. What do you think? EDIT In this case, I'm using the Yii Framework, which generates the model from the database, hence database rules are generated also (though I could always write them post-generation myself too).

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  • Need a Quick Sure Method to Produce a Formatted Explain Plan? This will help!

    - by user702295
    Please use the following on the production machine to get formatted explain plan and sql trace using the SLOW sql (e.g. 'T_COMB_LIST.COMB_ID = 216') or any other value that takes longer: -- Open new session is SQL*Plus */ -- Make sure you are using updated PLAN_TABLE -- This can be done by dropping it and recreate it by running: -- SQL> @?/rdbms/admin/utlxplan.sql) set lines 1000 set pages 1000 spool xplan_1.txt EXPLAIN PLAN FOR <<<<Replace this line with exactly the same query you used above. Force hard parse by modifying the case of a character>>>> @?/rdbms/admin/utlxplp spool off EXIT --Open a second session is SQL*Plus ALTER SESSION SET max_dump_file_size = unlimited; ALTER SESSION SET tracefile_identifier = '10046'; ALTER SESSION SET statistics_level = ALL; ALTER SESSION SET events '10046 trace name context forever, level 12'; <<<<Replace this line with exactly the same query you used above. Force hard parse by modifying the case of a character>>>> select 'verify cursor closed' from dual; ALTER SYSTEM SET EVENTS '10046 trace name context off'; EXIT Make sure spooled file is formatted properly and that the 10046 trace has relevant explain plan in it.  Please Upload both files (10046 trace is generated in udump). Need instructions to find udump?   sqlplus "/ as sysdba" show parameters dump_dest This will show you bdump, cdump and udump locations.

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  • RetinaPad Enables Retina Display for iPhone Apps on the iPad

    - by Jason Fitzpatrick
    RetinaPad is an iPad application that actives the Retina Display resolution on iPhone applications to increase the clarity on the iPad. It’s a feature that should be built-in but is currently only available for jailbroken iPads. The premise is simple. Currently iPads lack support for the Retina Display level resolution that iPhone apps are capable of if displaying. RetinaPad allows you to stop using the ugly and blocky simple doubling available on the iPad and start accessing the higher resolution Retina Display mode for iPhone applications on the iPad. It’s such a trivial thing that it’s outright shameful Apple doesn’t include it by default. You should have to jailbreak your device to unlock functionality that should be there right from the factory. Check out the demo video below to see it in action: Fire up your jailbroken iPad, launch Cydia and search for RetinaPad. Retina Pad is $2.99, iPad only. How to Enable Google Chrome’s Secret Gold IconHTG Explains: What’s the Difference Between the Windows 7 HomeGroups and XP-style Networking?Internet Explorer 9 Released: Here’s What You Need To Know

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  • How to start a Software Company

    - by MeshMan
    I've always been interested in wondering how software companies happen. I find it extremely difficult once you're tied down with car, house, life etc. Funding is always the biggest concern. To make this a bit more specific, I see two types. Those offering a product/service or those offering a consultancy company. One things that bugs me about the product/service kind is that we all know how burning the candle at both ends is extremely exhausting. Coding for 8-10 hours in the day and then code in the evenings on your own stuff, doesn't last long. No matter how passionate you are about your idea, simply put, coding day and night is a recipe for burn out. Is this a defeatist attitude though? Can it be balanced? A consultancy kind isn't as tricky in my honest opinion. I think once you have spent years and years in the industry building up relationships, contacts from contracting or moving around, and of course, being involved in the community, then landing your first project as a consultant I'm sure is easier than the product/service kind. I'd imagine friends then could join you as you take on bigger company projects, like an Agile implementation or TDD training, then off you go gaining bigger things. Could you please specify which company type you're answering if you can't contribute to both. I'd like to hear everyone's experiences or ideas on any level for software company start-ups.

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  • What is the breakdown of jobs in game development?

    - by Destry Ullrich
    There's a project I'm trying to start for Indie Game Development; specifically, it's going to be a social networking website that lets developers meet through (It's a secret). One of the key components is showing what skills members have. Question: I need to know what MAJOR game development roles are not represented in the following list, keeping in mind that many specialist roles are being condensed into more broad, generalist roles: Art Animator (Characters, creatures, props, etc.) Concept Artist (2D scenes, environments, props, silhouettes, etc.) Technical Artist (UI artists, typefaces, graphic designers, etc.) 3D Artist (Modeling, rigging, texture, lighting, etc.) Audio Composer (Scores, music, etc.) Sound Engineer (SFX, mood setting, audio implementation, etc.) Voice (Dialog, acting, etc.) Design Creative Director (Initial direction, team management, communications, etc.) Gameplay Designer (Systems, mechanics, control mapping, etc.) World Designer (Level design, aesthetics, game progression, events, etc.) Writer (Story, mythos, dialog, flavor text, etc.) Programming Engine Programming (Engine creation, scripting, physics, etc.) Graphics Engineer (Sprites, lighting, GUI, etc.) Network Engineer (LAN, multiplayer, server support, etc.) Technical Director (I don't know what a technical director would even do.) Post Script: I have an art background, so i'm not familiar with what the others behind game creation actually do. What's missing from this list, and if you feel some things should be changed around how so?

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  • Is Akka a good solution for a concurrent pipeline/workflow problem?

    - by herpylderp
    Disclaimer: I am brand new to Akka and the concept of Actors/Event-Driven Architectures in general. I have to implement a fairly complex problem where users can configure a "concurrent pipeline": Pipeline: consists of 1+ Stages; all Stages execute sequentially Stage: consists of 1+ Tasks; all Tasks execute in parallel Task: essentially a Java Runnable As you can see above, a Task is a Runnable that does some unit of work. Tasks are organized into Stages, which execute their Tasks in parallel. Stages are organized into the Pipeline, which executes its Stages sequentially. Hence if a user specifies the following Pipeline: CrossTheRoadSafelyPipeline Stage 1: Look Left Task 1: Turn your head to the left and look for cars Task 2: Listen for cars Stage 2: Look right Task 1: Turn your head to the right and look for cars Task 2: Listen for cars Then, Stage 1 will execute, and then Stage 2 will execute. However, while each Stage is executing, it's individual Tasks are executing in parallel/at the same time. In reality Pipelines will become very complicated, and with hundreds of Stages, dozens of Tasks per Stage (again, executing at the same time). To implement this Pipeline I can only think of several solutions: ESB/Apache Camel Guava Event Bus Java 5 Concurrency Actors/Akka Camel doesn't seem right because its core competency is integration not synchrony and orchestration across worker threads. Guava is great, but this doesn't really feel like a subscriber/publisher-type of problem. And Java 5 Concurrency (ExecutorService, etc.) just feels too low-level and painful. So I ask: is Akka a strong candidate for this type of problem? If so, how? If not, then why, and what is a good candidate?

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  • C++ Succinctly now available!

    - by Michael B. McLaughlin
    Over the summer I worked with SyncFusion to create an eBook based off of my C# to C++ guide for their free Succinctly Series of eBooks. Today the result, C++ Succinctly, was published for download. It is a free (registration required; they make tools and libraries for .NET development so you might get an occasional email from them – I’ve been signed up for a few months and have had maybe 3 emails total so it’s not horrible super spam or anything ) and you can download it as a PDF or a Kindle .MOBI file (or both). I’m excited with how it turned out and enjoyed working with the people at SyncFusion. The book contains a total of 20 code samples, which you can download from BitBucket (there’s a link very early in the book). Almost all of the code is also inline in the book itself so that you don’t need to worry about flipping back and forth between your dev machine and your eReader (but if you want to try to understand a concept better, you can easily download the code, open it up in VS 2012, and play around with it to see what happens when you tinker with things). The code does require Visual Studio 2012 because of its expanded support for C++11 features and since I wrote all of the samples as Console programs for clarity and compactness, you will need a version that supports C++ desktop development (currently VS 2012 Pro, Premium, or Ultimate). Sometime this Fall, Microsoft will be releasing Visual Studio 2012 Express for Windows Desktop which should provide a free way to use the samples. That said, I tested all of the samples with MinGW and only the StorageDurationSample will not compile with it due to the thread-local storage code. If you comment that out then you can compile and run all the samples with MinGW (or using a recent version of GCC in a GNU/Linux environment, or any other C++ compiler that provides the same level of C++11 support that Visual Studio 2012 does). I hope it proves helpful to those of you who choose to check it out!

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