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• Collision Systems Implementation

  - by hrr4

  Just curious what might be a good way to implement a decent collision system. As a class inherited by a base Entity class? Currently I'm stuck and could just use a couple better ideas than my own. Any help is appreciated! Edit: Sorry, it's 2D Collisioning but honestly, I'm not looking for specific collision methods. I'm looking more about the lines of implementation. Just curious of some of the common methods of how to implement collision systems such as: Should the entire collision system be it's own class? What, if anything, should be inheritable? These are some of my questions. Sorry for the confusion.

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• Java vs COBOL programming examples

  - by Jodi

  I am a COBOL programmer, desperately trying to learn and program Java. Although I understand the OO priciples and concepts, I am at a lost putting all together. I am trying to find some examples on how code will look in COBOL vs Java - something a bit more complicated than "hello world" [I am past that initial headache! :-)], that includes OO principles - basically, a decent 1000+ liner in COBOL, with the Java code to work through. After working through book after book, doing the examples, and even writing small java programs at work, I think working through an example I can compare will be the best way to getting my thinking cap converted, and being able to do in Java what I can do after 10 years with COBOL. Can anybody help?

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• Proper password handling for login

  - by piers

  I have read a lot about PHP login security recently, but many questions on Stack Overflow regarding security are outdated. I understand bcrypt is one of the best ways of hashing passwords today. However, for my site, I believe sha512 will do very well, at least to begin with. (I mean bcrypt is for bigger sites, sites that require high security, right?) I´m also wonder about salting. Is it necessary for every password to have its own unique salt? Should I have one field for the salt and one for the password in my database table? What would be a decent salt today? Should I join the username together with the password and add a random word/letter/special character combination to it? Thanks for your help!

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• Recommend hosting with fast MySQL database please.

  - by Keith Groben

  I am frustrated to no end with my current hosting provider, mediaTemple. Yes, they are flashy, and have some decent degree of flexibility with their GS plan, which I have. But anytime I install a site that needs a database, it is slow. like really slow. Taking anywhere from 10 - 15 seconds just to load a page. I would host in house, but there are a lot of complications that come with a LAMP server that I don't want to deal with. Honestly, I'd rather spend the time developing. What can you recommend?

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• 3D game engines for XNA games

  - by Jenko

  Before I start development of an XNA game, I need to choose a 3D game engine to develop upon. Is this belief unfounded? Does XNA have basic object transformation, lighting and mesh/texture importing functionality by which you can develop a decent 3D side-scrolling game? Chances are I'm going to need a 3D engine such as Torque X to handle most of the special effects, animation and sound for me. What are the engines that you recommend building an XNA game with? What work reliably in your experience? Is XNA alone enough? do you have repositories of code that work directly with XNA to create effects and other game environments with sunlight, fog and rain?

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

  - by Andrew

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

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• Coming back from (blog) retirement

  - by leo.pasta

  So, it has been more than 3 years without a single blog post. I wished I could have a decent excuse for it, but in the end, I guess it boils down to laziness and procrastination. :-) Even though I learned a lot in that period (and added a feel tricks to my bag), I couldn’t find the will to sit down and write. I hope all my readers (yes mom and dad, I’m talking to you) have not been disappointed. I will try really hard not to let routine take over. I don’t expect I will be the most active blogger in the community, but hopefully a couple of posts per month is a good target to aim.

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• Create a screencast in a low end PC, but fast (maybe by sacrificing compression ?)

  - by josinalvo

  As the title suggests, I am asking a lot. We've been trying to generate some screencasts on my eeepc. recordmydesktop is doing the job decently, but only if allowed time to "compile" the video afterwards. If we ask it to do "on the fly", video and audio get out of sync. Now, we are creating many screencasts as practice (and like to watch them after, to criticize). Reducing quality is undesirable, because eventually a good practice run becomes the one we'll release. So we'd like a way to do screencasts "on the fly", with decent quality, on the low end machine. As nothing is ever free, we are willing to sacrifice: we don't care too much about compression: 20GB for a 15min video is acceptable

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• Generating Wrappers for REST APIs

  - by Kyle

  Would it be feasible to generate wrappers for REST APIs? An earlier question asked about machine readable descriptions of RESTful services addressed how we could write (and then read) API specifications in a standardized way which would lend itself well to generated wrappers. Could a first pass parser generate a decent wrapper that human intervention could fix up? Perhaps the first pass wouldn't be consistent, but would remove a lot of the grunt work and make it easy to flesh out the rest of the API and types. What would need to be considered? What's stopping people from doing this? Has it already been done and my google fu is weak for the day?

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• How do you change your screen's color temperature in Ubuntu?

  - by RPG Master

  I edit my photos on my laptop (yes, I know they have crap displays) and I recently had to replace the screen because the old one just randomly died. The old one had decent color reproduction by default, but this new one is VERY blue. After playing with the Gamma I've gotten it to be a bit better, but it's still pretty blue. So, my question is, how do I go about changing my laptop's display's color temperature? And I don't mean through something like the Red, Green, Blue sliders in the NVIDIA config menu. I'm talking about like adjusting in degrees, like editing a photo's white balance. EDIT: So now I've found Redshift and it's doing me pretty good. I thought it might be helpful if I out here the command I'm using. redshift -t 5000:5000 -g .5 By adding this to my start up commands I should be good. I'm still open to other suggestions, because I'd like something that actually edited my xorg.conf or something like that.

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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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• Commenting/In-Code Documentation Styles

  - by Maxpm

  This might be a stupid question, but it's been in the back of my head for a while and I can't find a decent answer anywhere else. I have a teacher who says we should explicitly list each parameter with a description, even if there's only one. This leads to a lot of repetition: double MyFunction(const int MyParam); // Function: MyFunction // Summary: Does stuff with MyParam. // Input: int MyParam - The number to do stuff with. // Output: MyParam with stuff done to it. When writing in-code documentation, how detailed are you?

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• Receive anonymous users' input by web upload form or email. Any online service for that?

  - by sja

  Are you aware of any online service or online "platform" allowing users, not previously registered, to upload pairs of picture+comment to a database? It would be a collaborative database of picture+comment pairs. I'm not going wiki or googlegroup, picasa or such because I'd like the user to have the least to do to participate, that is e.g.: take a picture with his phone and email it to an email to an email address. Or go to a web page with an upload form, type in a description, hit OK and that's it. And the goal is also that it be as hassle-less to put up as possible. Yeah I know, it can't programme itself to my requirements :) by I'm suspecting there's a tool or tool combination going a decent way through my needs. Thanks for any info/advice! SJA (NB the final goal is a kind of crowd-sourced census of specific urban items. If you have comment about the potential for spam-overload of my idea, other than "you're doomed", you're welcome!)

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• Alps touchpad detected as a mouse, can't enable/disable multitouch

  - by Shota Bakuradze

  Now I know that this has been asked several times here but I couldn't find any decent solution to it. I am running Ubuntu 12.04 on my DELL N5110 and my touchpad is detected as a mouse, So I don't have the touchpad options availiable. Can't use multitouch and can't disable it either. I have tried the dkms driver from this link. But when I tried to install it with dpkg -i command, dpkg returns the following error: ERROR (dkms apport): unable to determine source package for psmouse-alps-dkms Error! Bad return status for module build on kernel: 3.2.0-25-generic-pae (i686) Consult /var/lib/dkms/psmouse-alps/0.10/build/make.log for more information. I have installed all the updates as well. Can someone help me out with this issue?

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• How to balance programming projects between feasibility and usefulness

  - by tyjkenn

  I've become fairly competent as a programmer, but I would not say I am a master. I work independently, most as a hobby, although I have done some freelance PHP work. I tend to find myself dabbling in a lot of things: Java Android SDK, Arduino, game scripting, Lua, etc. I've reached the point where I want to start a real software project, but cannot think of a small enough project that allows me enough practice, while still being able to publish a decent piece of software in a reasonable amount of time, and build up a portfolio. More specifically, I was looking at Ubuntu development, in Python, using the Quickly toolset, which includes the PyGTK libraries. So the question is, what is the best way to come up with a small project that is still useful, as a starting point to a software development career?

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• How would you approach developers you don't already know as a developer to offer them a position? [closed]

  - by Kit Sunde

  We've been trying to find a second developer for the company and have posted job ads online but so far there have been no developers that have been interested, and only a single one that has some experience in Python (that failed a fairly basic practical). It seems like the it's really difficult to find decent people here in Singapore, even reasonable juniors that you can teach. I'm contemplating whether I should go reach out directly to people on Stack Overflow and github and in the hopes that they are interested. I'm thinking I would message the person with only a few sentences, stating the they seems capable from their online presence and that I'd like to work with them. Is this kosher? I know I dislike recruiters and unsolicited mail just as much as the next guy.

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• How long till HTML5 canvas becomes a viable game development platform?

  - by Shouvik

  So I have been working on web application. So invariably what it boils down to is making simple games which were previously based on flash or openGL. Now I know apple was moving away from flash because its proprietary unlike their stance that its got "pathetic performance"! Not true, try playing a canvas game, I can assure you at any point of time (including when its idle) it will use up a fair bit of processing power just to redraw the UI. Now I do understand that this is my fault because when the game is not active I should not be redrawing the canvas, but honestly its a lot of work and I suppose there should be libraries which should be able to assist me with that! So, how much will it be before I see a decent canvas library which handles these "tiny" issues for me? I can't honestly expect Steve Jobs to be doing anything more for HTML5! I someone knows of a good library, I am all ears...! :) PS: I use mootools and am presently using Mootools Canvas Library.

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• How to get BURG on 12.10 (Quantal Quetzal)

  - by Warpspace

  I've been using BURG for years to get rid of the eye sore that is the standard GRUB interface. When I upgraded to Quantal, the repository does not contain the updated information. I.e. after I add sudo add-apt-repository ppa:n-muench/burg sudo apt-get update I get the annoying response W: Failed to fetch http://ppa.launchpad.net/n-muench/burg/ubuntu/dists/quantal/main/binary-amd64/Packages 404 Not Found It's been like this for a month, contrary to various websites which say it works. Is BURG being maintained? Have they created a better alternative (such as integration with GRUB, like it should have been in the first place). How do I get a decent-looking bootloader?

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• Learning Java for electrical engineering [closed]

  - by MohdAziz

  I'm an electrical engineering student ( Power, control & instrumentation). 2 months ago I started learning C, and I found programming something really enjoyable and I'd like to continue learning C and few other programming languages along with my electrical engineering degree. So my university is offering an extensive Java Oracle course for 7 days (like 5-6 hours a day) for a really decent price, do you think as an electrical engineer this would help me in my future career? What are the benefits of learning Java for an electrical engineer of my specialization? Do you think it's a good idea for someone in my case to take such an extensive course? I'm hardworker and I really enjoy these things, so I don't think that would be a problem for me.

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• Is there a repository of game logic algorithms?

  - by New2This

  I'm writing my first 2D game, and I'm writing some tracking logic for the computer enemies. Basic follow-the-player tracking was easy, but ineffectual. Too easy to escape. So I'm trying to implement some more sophisticated flanking and other tactics, and (as expected) it's pretty tricky. This is a topic I know nothing about. I'm going to keep trying, but it'd be awesome to have some examples or tips to work off of. Is there any place that has a decent set of pseudocode AI algorithms, or tips or advice on the subject, e.g. for 2D tracking?

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• Web App for storing and organize programming information?

  - by Fabzter

  So, I've found myself, after several years of coding (I consider myself a coder, rather than a programmer) full of links and loose snippets and coding tips, all dispersed across the web. In such way it is barely usable, even when every bit is important or interesting. I thought of simply storing the links in delicious or something alike, but it's not really the links I want to keep, I just need the succinth info. So I was thinking to use some web app, something like a wiki, maybe much more simple, so I could access it though my mobile if I need it. I could code it, but as I stated it before, I'm more of a code monkey, and I'm sure my solution would be far from decent... Can anyone give me recommendations on this?

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• How do I set a wine program (ex. Foxit Reader for Windows) as the default program?

  - by To Do

  I regularly annotate pdf files and unfortunately there is no good linux pdf reader that supports decent annotations. Evince has a very rudimentary and buggy annotation feature. So I'm stuck using a Windows viewer through wine. This works pretty well but, when I simply right-click a file (in this case a pdf), properties, open with and selected Foxit Reader, the Unity Launcher icon remained the wine icon instead of the application icon. Has anyone set a wine program as the default program for any file? Any ideas?

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• XDIME for Mobile Applications

  - by Carlos Gavidia

  I'm involved in a project that requires to mobile-enable some previously developed Portlets. The Portlets are deployed in WebSphere Portal, and the container offers a technology called IBM Mobile Portal Accelerator that uses XDIME to render mobile pages according to the device. I'm trying to document myself in the technology and I'm having a bad time: Google only shows some outdated sites from IBM and even older posts from Volantis, another company involved in the technology (Amazon shows no related books). So... what's the current status of that technology actually? Is has some decent level of adoption?

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• Advise on effectively re-entering CPP world [closed]

  - by Aadith

  I am getting back into C++ world after nearly a decade. Apparently, there has been a world of development. Would like to get the developer community's advice as to what would be a good approach to have a smooth take-off. To start with, I have done the following: Read up (very briefly) on C++ 11 standards Installed GCC 4.7 Wrote a Hello World program I am sure getting a decent book and reading through it would do. But I am looking for any strategic advise experts might have to share. Trying to leverage on past experience to have a short but effective initial learning span. What would be top few things I would have to look into?

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• 1 year to learn as much as possile - How would you plan this time?

  - by user1189880

  I have been messing around with web development and programming in general for a couple of years now, working in web development agencies and the like. I have now decided that I want to move to more general programming and do this permanently and as a career and have set myself a goal of 1 year to learn as much as I can before I go out and find a 'proper' job as a programmer. Do any programmers out there have any opinions on how this time should be split and what the most important things to focus on will be over the year. The languages I will be focusing my learning on are: c, php, python and go - all of which i have varying degrees of familiarity with. The ultimate goal here is to gain as good as foundation as possible and to be of a good enough level to interview successfully for a decent company.

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