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  • Vocabulary: Should I call this apply or map?

    - by Carlos Vergara
    So, I'm tasked with organizing the code and building a library with all the common code among our products. One thing that seems to happen all the time and I wanted to abstract is posted below in pseudocode, and I don't know how to call it (different products have different domain specific implementations and names for it) list function idk_what_to_name_it ( list list_of_callbacks, value common_parameter ): list list_of_results = new list for_each(callback in list_of_callbacks) list_of_results.push(callback(common_parameter)) end for_each return list_of_results end function Would you call this specific construct a list ListOfCallbacks.Map( value value_to_map) method or would it better be value Value.apply(list list_of_callbacks) I'm really curious about this kind of thing. Is there a standard guide for this stuff?

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  • Data structures for a 3D array

    - by Smallbro
    Currently I've been using a 3D array for my tiles in a 2D world but the 3D side comes in when moving down into caves and whatnot. Now this is not memory efficient and I switched over to a 2D array and can now have much larger maps. The only issue I'm having now is that it seems that my tiles cannot occupy the same space as a tile on the same z level. My current structure means that each block has its own z variable. This is what it used to look like: map.blockData[x][y][z] = new Block(); however now it works like this map.blockData[x][y] = new Block(z); I'm not sure why but if I decide to use the same space on say the floor below it wont allow me to. Does anyone have any ideas on how I can add a z-axis to my 2D array? I'm using java but I reckon the concept carries across different languages.

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  • Calculate initial velocity of a 3d vector-based projectile

    - by Frotty
    Okay, so I got a Projectile with 2 Vectors, position and velocity. I now want to calculate the initial velocity for it in order to reach a specific point on the map. Or actually, how high has the start z-velocity to be (because x and y are probably defined by a speed variable) in order for the projectile to hit the marked position. The projectile is influenced by a constant gravity vector. All calculations are done 32 times per second. I want this, because I don't want to use a parabola function, so the projectile can still be influenced by other sources, simply adding some velocity. I didn't really find anything referring to that topic and would be glad for every helping answer, Thanks.

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  • What is a normalized Vector?

    - by draiden
    Can someone explain the following code? I need to learn what each part means so I can turn it into enemy movement in a space shoot-em-up Vec2d playerPos; Vec2d direction; // always normalized float velocity; I get the above is naming two 2d Vector objects, and creating a variable called velocity. I'm not sure what the normalized comment is about, though. update() { direction = normalize(playerPos - enemyPos); playerPos = playerPos + direction * velocity; }

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  • Listening For and Raising Events in the BLL

    - by OneSource
    I'm working on a WinForms .Net Recording App and I have a RecordingMgr in my BLL to listen for new events captured by another class. I want to display the events in my UI and I'm stuck as to what's the best way to do this. I can think of a few scenarios to handle this but all of them seem sub-optimal: Listen for and handle Recorded Events in both the UI and in the RecordingMgr After receiving the event in the RecordingMgr, raise it again so that the UI can pick it up Create a variable in RecordingMgr (e.g., a BindingList) that the UI can bind to and update it when an Event is received Ditch the RecordingMgr and just put the event recording logic in the UI What's the best approach? Something above or something else?

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  • Empty Synchronized method in game loop

    - by Shijima
    I am studying the gameloop used in Replica Island to understand a bit about Android game development. The main loop has the below logic... GameThread.java (note the variable names in sample code dont match exact source code) while (!finished) { if (objectManager != null) { renderer.waitDrawingComplete(); //Do more gameloop stuff after drawing is complete... } } I was curious to see what waitDrawingComplete actually does, but found its just an empty syncrhonized method! I guess it does nothing, am I missing something here? GameRenderer.java line 328 public synchronized void waitDrawingComplete() { } Source code can be checked out here with SVN if you feel like having a look: https://code.google.com/p/replicaisland/source/checkout

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  • PHPForm mail help [closed]

    - by tom
    I have a PHP Form with two different fieldsets and about 4 labels within each. The form mailer is one i found on a tutorial but I'm not sure how to set in all the variables. Should all the 'label for' names also be the name of the variable? And is it easy to format with font-size etc.. once its been sent to an email for easy reading? $course_title = $_POST['course_title']; $course_date = $_POST['course_date']; $course_code = $_POST['course_code']; $course_fee = $_POST['course_fee']; Say i have - Personal Details labels with - first_name, address, postcode, dob. Course Details labels with - course_title, course_date, course_code Would this be correct and if not would anyone be able to help me out here.

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  • What is this called?

    - by robertlewis2001
    I'm hoping there's a book or something out there for me to get... If I have a class that has Collection as an instance variable, what is that method of coding called? A design pattern? If so, where can I find more information on it? As I've been working with this mentor, he's really helped me understand my programming weakness and that weakness is thinking in terms of collections or relationships between objects. It just seems so difficult for me right now and I need to read to become smarter. My mentor is a great guy, but he gets frustrated when I start asking lots of questions, so I'm starting to feel like I need to learn more on my own. public class Evaluation { private List<Criterion> criterion = null; public Evaluation() { criterion = new List<Criterion>(); } }

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  • What is the best certification for the self-taught ASP.Net programmer? [closed]

    - by Wahid Bitar
    I learned the C#.Net language from books and many other resources then i did some good projects with ASP.Net "Web Forms & MVC". But i wanna a good certificate to get a better work out of my country as i suppose. I've two choices: Apply for a " college / institute " and start study academic courses to be more professional and maybe in two years I'll "hopefully" graduate with this college certificate. Apply for kind of " Certifications by Companies " like MCTS from Microsoft or something like that and study their straightforward courses then maybe with three or four months I'll get this "Not official Certificate". Is the second type of certifications good for learning and work or the best is the hard way ?. Please give me advises with certifications names please. ======================= Update: This is not related to certain country or region. I'm asking about a good certification and courses for an ASP.Net and C# in general programmer.

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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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  • How to determine the size of a package in terminal prior to downloading?

    - by user14590
    When using apt-get install <package_name>, and there are dependencies that need to be downloaded, the terminal outputs names of additional packages and total size, and asks for confirmation before downloading. But, when dependencies are satisfied and nothing but the named package needs to be downloaded there is no size output and no confirmation. When using Synaptic, I can see the total size that new packages that will use after installation but no way to see the size that needs to be downloaded, except to go from package to package and use properties to see the compressed size. I would like to know if there is a way to see the size of a package(s) in terminal and Synaptic prior to downloading and installing it/them?

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  • Turned off my computer and o it's opened up in grub. How do I tell it to boot into lubuntu?

    - by Magpie
    It's just a commandline. I have tried my usual trick of sticking a usb with lubuntu in there to see if I can boot from my usb but I get a boot error (I normally wouldn't using that usb). GNU grub version 2.00-7ubuntu11 also just using basic things I know I hits ls then tried boot hd0 but it says: you need to load the kernel first I have no idea how to do this. I looked at the commands and most of them hve obscure names that are not helpful. UPDATE: I hit exit and that allowed be to boot from usb. Hopefully I will be able to find what I need to install to get it booting normally again from there.

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  • What is required to create local business rich-snippets complete with sitelinks AND breadcrumbs?

    - by Felix
    I have a local business directory site. I would like to markup my business listing 'profile' level pages for display as enhanced listings/rich-snippets complete with business names, addresses and phone numbers. I would also like to display site-links and path-based breadcrumbs to help users navigate site directory hierarchy (which is deep). Is there a limit to the amount of breadcrumbs a site can leave? Is there a separate limit on the number of breadcrumbs which Google/Bing will display in the SERP? What kind of markup language(s) would be needed to best position my site to show site-links AND breadcrumbs? For example: Find a business Browse by Location State City Zip or Find a business Choose Service Browse by location State City Thanks all!

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  • How to track/sniff mp3 files posted on Zippyshare.com? [closed]

    - by Stoan
    I'm not sure if this is a right place to ask this question, We starting a indie recording label, I want to minimize piracy of our music. I want to track/sniff our songs that are posted to Zippyshare.com How can I right a tool to automate this process? we would supply our song names and it would search and notify us if our songs are posted on Zippyshare.com. I'm a junior Java developer. I'm looking for direction on how to right an app that would achieve this, any help is appreciated. Thanks

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  • Using Visual Studio 2010s Debugger PIN Feature

    One of the very cool new features in Visual Studio 2010 is the ability to Pin a variable you are watching, right in the place you want to see it.  Its always been a hassle to have to add a... This site is a resource for asp.net web programming. It has examples by Peter Kellner of techniques for high performance programming...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Best way to trigger editing and dynamically show editing features? [on hold]

    - by Tim Marshall
    Page In Question: http://rafflebananza.com/admin/StatisticalData/expenses/expenses.html Hiya Everyone, On my page, I have an 'Actions' drop down to the top-right hand side of the page. This actions drop down I would like to have an action to 'Enable Editing'. Upon clicking to enable editing, I would like a PHP variable modified from 'EnableEditing = false' to 'EnableEditing = true'. Why I would like to use PHP maybe questionable, here is why I would like to use PHP under my understanding to clarify; Sections on my page will show to different administrators depending on their level. Upon enabling editing mode, certain contents will then dynamically. <?php if ($_SESSION['user_level_status'] < 2) { if ($editing = enabled) { show this } else { show this } } ?> Something similar to this, I'm new at PHP so this may look incorrect. The question really is, is PHP the correct language to use to trigger editing and how can I do this please? Best Regards, Tim

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  • Ruby: if statement using regexp and boolean operator [migrated]

    - by bev
    I'm learning Ruby and have failed to make a compound 'if' statement work. Here's my code (hopefully self explanatory) commentline = Regexp.new('^;;') blankline = Regexp.new('^(\s*)$') if (line !~ commentline || line !~ blankline) puts line end the variable 'line' is gotten from reading the following file: ;; alias filename backupDir Prog_i Prog_i.rb ./store Prog_ii Prog_ii.rb ./store This fails and I'm not sure why. Basically I want the comment lines and blank lines to be ignored during the processing of the lines in the file. Thanks for your help.

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  • Running the application with F5 gives a message saying "\bin\Debug\Infrastructure.Layout.dll was not found"

    The problem here is the ProfileCatalog.xml file refers to the old assesmbly namesdlls. It does not get updated when the assembly names change. Steps to fix this issue: 1. Open the ProfileCatalog.xml file in the Shell project, and you'll find there are three ModuleInfo configuration items that need to have the solution name prefixed. 2. Prefix the dlls with the solution name. Recompile and everything will work fine. span.fullpost {display:none;}

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  • Ubuntu dual-boot errors in 13.10

    - by Charlie
    Specs: Lenovo U530, 500 GB HDD, 8 GB RAM, 64-bit, i7 Intel Processor with integrated graphics I'm trying to dual-boot Ubuntu but I have the following problems: After booting from live DVD, the GRUB loads but with the following errors: "Could not open '\EFI\BOOT\fallback.efi': 14" and "error: variable 'root' isn't set. I have disabled Fast Startup and SecureBoot before booting the disc. Also, after trying to "Try Ubuntu without installing" my screen, and DVD Drive shutoff momentarily but then my drive boots up but my screen remains black and sometimes flashes but doesn't display anything. I will greatly appreciate any help. P.S. I don't have any previous version of Ubuntu installed so this is NOT an upgrade from a previous version.

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  • How to redesign the UI of a large project?

    - by jem88
    I'm currently working at a quite big Android project (a social network, you can see it here if is useful to answer the question). We decided to restyle the whole app, changing all the UI design. The code I actually have is complex, there are many controllers, and it's a little messy too. Is it "better" in terms of time and code cleanliness to take one controller per time, and rewrite it entirely, or to modify one controller per time? The layout change entirely anyway, so for that I know I've to restart from scratch. Maybe it could seem a stupid question, but with the "time" variable I really can't see the best way.

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  • Huge company wants my domain name

    - by Charles Marsh
    Not sure if this is the right place to ask but I'll give it a go. I simply require a little advice; A very large hosted e-commerce platform emailed me a while back and basically asked me to transfer my domain name to them. They made no offer but simply said 'why not change your domain to xx - xx instaead of xxxx' Not they own all the equivalent names in .com, .org all of them apart from my .co.uk I am a registered partner of theirs and my website is a portfolio of all my themes but I also get a lot of enquires through it. I had heard rumors this company is opening an office in the UK! I'm right in thinking I shouldn't just roll over right? I've put some much effort in to SEO and building my reputation... I can't just give it up surly?

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  • Running the application with F5 gives a message saying "\bin\Debug\Infrastructure.Layout.dll was not found"

    The problem here is the ProfileCatalog.xml file refers to the old assesmbly namesdlls. It does not get updated when the assembly names change. Steps to fix this issue: 1. Open the ProfileCatalog.xml file in the Shell project, and you'll find there are three ModuleInfo configuration items that need to have the solution name prefixed. 2. Prefix the dlls with the solution name. Recompile and everything will work fine. span.fullpost {display:none;}

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  • Please help me to improve Re-Sharper

    - by TATWORTH
    Re-Sharper is an excellent aid to producing good code in either C# or VB.NET. Recently through using Resharper and StyleCop, I have found three area where ReSharper needs to be improved. Please log into the YouTrack at http://youtrack.jetbrains.net and vote for the following: RSRP-268868 Improvement to removal of redundant else and invert if optimisations for enhanced stylecop compliance. When Resharper removes a redundant else, there needs to be a blank line added. Currently there is no provision to specify this. Please vote for this! RSRP-272286 Resharper Feature Request to move initialisation to static constructor Currently ReSharper offers moving initialisation of of non-static variable to a constructor. Why not offer the same for a static constructor?  Please vote for this! RSRP-272285 Expansion of Switch Statement by Resharper Currently ReSharper will fill an empty switch statement based upon an enumeration but will not add missing enumeration values to such a switch statement.   Can't code withoutCoding assistance, smart code editing and code completion for C# and VB.NET

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  • Which tags to use for good SEO on the page

    - by Aaditi Sharma
    I have a event page, where it has the following items. Event Name Venue Name(s) {some cases go upto 5 or more venues} Event Info {Genre(s),Language,type(s)} Date(s) on which the event is. Event Description. Since, the Event name is unique, and present in the title, I am assigning <H1> to it. However, venue names are multiple, plus the same venue may be repeated across the page, along with dates. (Each)Event Info, is used a single time on the page Dates, are descriped in a styled manner using multiple spans, however, I am going to use a title on them. Event description is in <p> tag. So My question is which heading tags to use for a good symentic description and SEO. Also the title on the dates, which format should I keep the date in? (dd/mm/yyyy)?

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  • Is there benifit to maintain a large project with bad code?

    - by upton
    I'm currently maintain a large project with more than 100000 LOC. The code use the MFC as its framework, in genral, it only has interface part which heavily use the mfc api and a business logic part which full of bad code, confusing logic. The company has some small features delivered to the customer each year(most features are adding code to exisiting project, finding some reference of some api or variable and it' s no different with fixing 3-4 bugs ), most of the tasks are to resove issue and optimize performance . Like other company with maintaining position, it value people who knows much logic about its product. There are people who can quickly finish the job on such project, is it worth to train myself like such a programmer? Is there benifits to work on such project for a long time?

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