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• Is using the student version of 3DS Max and Unity3d legal?

  - by SubZeron

  I am developing an indie game together with my friend using Unity3D engine. I bought "Silo 3D" for modeling two month ago and for texturing I use 3D coat. We plan to sell our game in the future. For the animations I work with 3DS max (only animation part). My question is, can I work with a students license? The license for the original version is too expensive for me. I am still at the university and I can not buy the 3DS Max license which costs 4000 €. As an alternative I have the choice beetween Blender (can´t work with this software and don't have time to invest for learning a new program) and Truespace (can´t export fbx animation and specially with bones) so for me, 3DS Max is the best choice to be effective and quick. Is it possible to prove it when I export my fbx characters from 3DS Max to Unity3D? I mean can they find out that I have used the students license of 3DS Max for the animations after the release of the game? Maybe with help of DRM? Can I solve that problem when I export the fbx from 3DS Max to Blender and after that export the same fbx to Unity3D?

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• Unity3D Android : Game Over/Retry

  - by user3666251

  Im making a simple 2D game for android using the Unity3D game engine.I created all the levels and everything but Im stuck at making the game over/retry menu.So far I've been using new scenes as a game over menu.I used this simple script : pragma strict var level = Application.LoadLevel; function OnCollisionEnter(Collision : Collision) { if(Collision.collider.tag == "Player") { Application.LoadLevel("GameOver"); } } And this as a 'menu' : #pragma strict var myGUISkin : GUISkin; var btnTexture : Texture; function OnGUI() { GUI.skin = myGUISkin; if (GUI.Button(Rect(Screen.width/2-60,Screen.height/2+30,100,40),"Retry")) Application.LoadLevel("Easy1"); if (GUI.Button(Rect(Screen.width/2-90,Screen.height/2+100,170,40),"Main Menu")) Application.LoadLevel("MainMenu"); } The problem stands at the part where I have to create over 200 game over scenes,obscales(the objects that kill the player) and recreate the same script over 200 times for each level. Is there any other way to make this faster and less painful? I've been searching the web but didn't find anything useful according to my issue. Thank you.

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• Unity3D - Android pause screen - double click issue

  - by user3666251

  I made a pause script for the game im developing for android. I added the script to the GUITexture I created and placed on the top right side of the screen.The issue stands at the part where if the player clicks the pause button then clicks resume then he wants to pause the game again.When he clicks pause the second time the buttons dont show up unless he clicks again. This is the script : #pragma strict var paused = false; var isButtonVisible : boolean = true; function OnMouseDown(){ this.paused = !this.paused; Time.timeScale = 0; isButtonVisible = true; } function OnGUI(){ if ( isButtonVisible ) { if(this.paused){ if (GUI.Button(Rect(Screen.width/2-100,Screen.height/2+3,200,50),"Restart")){ Application.LoadLevel(Application.loadedLevel); Time.timeScale = 1; isButtonVisible = false; } if (GUI.Button(Rect(Screen.width/2-100,Screen.height/2-50,200,50),"Resume")){ Time.timeScale = 1; isButtonVisible = false; } // Insert the rest of the pause menu logic if (GUI.Button(Rect(Screen.width/2-100,Screen.height/2+56,200,50),"Main Menu")){ Application.LoadLevel ("MainMenu"); isButtonVisible = false; Time.timeScale = 1; } } } } Thank you.

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• Basic procedural generated content works, but how could I do the same in reverse?

  - by andrew

  My 2D world is made up of blocks. At the moment, I create a block and assign it a number between 1 and 4. The number assigned to the nth block is always the same (i.e if the player walks backwards or restarts the game.) and is generated in the function below. As shown here by this animation, the colours represent the number. function generate_data(n) math.randomseed(n) -- resets the random so that the 'random' number for n is always the same math.random() -- fixes lua random bug local no = math.random(4) --print(no, n) return no end Now I want to limit the next block's number - a block of 1 will always have a block 2 after it, while block 2 will either have a block 1,2 or 3 after it, etc. Before, all the blocks data was randomly generated, initially, and then saved. This data was then loaded and used instead of being randomly called. While working this way, I could specify what the next block would be easily and it would be saved for consistency. I have now removed this saving/loading in favour of procedural generation as I realised that save whiles would get very big after travelling. Back to the present. While travelling forward (to the right), it is easy to limit what the next blocks number will be. I can generate it at the same time as the other data. The problem is when travelling backwards (to the left) I can not think of a way to load the previous block so that it is always the same. Does anyone have any ideas on how I could sort this out?

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• Antenna Aligner part 2: Finding the right direction

  - by Chris George

  Last time I managed to get "my first app(tm)" built, published and running on my iPhone. This was really cool, a piece of my code running on my very own device. Ok, so I'm easily pleased! The next challenge was actually trying to determine what it was I wanted this app to do, and how to do it. Reverting back to good old paper and pen, I started sketching out designs for the app. I knew I wanted it to get a list of transmitters, then clicking on a transmitter would display a compass type view, with an arrow pointing the right way. I figured there would not be much point in continuing until I know I could do the graphical part of the project, i.e. the rotating compass, so armed with that reasoning (plus the fact I just wanted to get on and code!), I once again dived into visual studio. Using my friend (google) I found some example code for getting the compass data from the phone using the PhoneGap framework. // onSuccess: Get the current heading // function onSuccess(heading) {    alert('Heading: ' + heading); } navigator.compass.getCurrentHeading(onSuccess, onError); Using the ripple mobile emulator this showed that it was successfully getting the compass heading. But it didn't work when uploaded to my phone. It turns out that the examples I had been looking at were for PhoneGap 1.0, and Nomad uses PhoneGap 1.4.1. In 1.4.1, getCurrentHeading provides a compass object to onSuccess, not just a numeric value, so the code now looks like // onSuccess: Get the current magnetic heading // function onSuccess(heading) {    alert('Heading: ' + heading.magneticHeading); }; navigator.compass.getCurrentHeading(onSuccess, onError); So the lesson learnt from this... read the documentation for the version you are actually using! This does, however, lead to compatibility problems with ripple as it only supports 1.0 which is a real pain. I hope that the ripple system is updated sometime soon.

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• Edd strikes again &ndash; IronRuby for Rubyists on InfoQ

  - by Eric Nelson

  Colleague, friend and generally top guy on IronRuby Edd Morgan has just been published over on InfoQ. To wet the appetite… a snippet or three. IronRuby for Rubyists IronRuby is Microsoft's implementation of the Ruby language we all know and love with the added bonus of interoperability with the .NET framework — the Iron in the name is actually an acronym for 'Implementation running on .NET'. It's supported by the .NET Common Language Runtime as well as, albeit unofficially, the Mono project. You'd be forgiven for harbouring some question in your mind about running a dynamic language such as Ruby atop the CLR - that's where the DLR (Dynamic Language Runtime) comes in. The DLR is Microsoft's way of providing dynamic language capability on top of the CLR. Both IronRuby and the DLR are, as part of Microsoft's commitment to open source software, available as part of the Microsoft Public License on GitHub and CodePlex respectively… And Metaprogramming with IronRuby The art and science of metaprogramming — especially in Ruby, where it's an absolute joy — is something that could very easily span an entire article. As you would hope, IronRuby code is fully able to manipulate itself allowing you to bend your classes to your whim just as you would expect with a good dynamic language… And Riding the irails? So let's get to the point. I think it's a solid bet to make that a large proportion of Ruby programmers are familiar with the Rails framework - perhaps it's even safe to assume that most were first led to the Ruby language by the siren song of the Rails framework itself. Long story short, IronRuby is compatible enough to run your Rails app… Now… get yourself over to the full article and also check out some of Edds other work below. Related Links: 5 Steps to getting started with IronRuby Mini Book Review of IronRuby Unleashed by Shay Friedman Guest Post: Using IronRuby and .NET to produce the ‘Hello World of WPF’ – also by Edd Getting PhP and Ruby working on Windows Azure and SQL Azure Guest Post: What's IronRuby, and how do I put it on Rails? – also by Edd

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• How can i get my KVM switch to work? (win7 & ubuntu 10.10)

  - by Will W.

  i bought a KVM switch and i'm trying to use it to have it connected to my main PC (win7) and my new machine i just installed ubuntu on. I hooked it up properly, and tried using it. It worked when switching from the win7 machine to the ubuntu one, but after the (1st and only) successful switch, ubuntu just didn't seem to recognize my mouse or keyboard. Basically when i tried it the easiest was to explain what happened was it only worked with Win7. When i switched over to ubuntu by doing a [scroll-lock] [scroll-lock], my keyboard and mouse were not recognized. However, the lights on the keyboard and mouse did work when on ubuntu, but they didn't function, and since keyboard wouldn't function, i couldn't do a [scroll-lock] [scroll-lock] to switch back to the win7 machine. So i was basically locked in to ubuntu with no mouse or keyboard, and i had to unplug the keyboard/mouse usb's and d-sub to plug the monitor d-sub back into win7 computer to type up this thread and google the issue. Seems some people have had this issue before but i couldn't find a fix... I am 80% sure it has to do with drivers... but there isn't any for KVM switches, at least not this one also i never was unable to find ubuntu drivers/firmware for my mouse and keyboard (Logitech G15 and Razer Deathadder 3500). I don't know how to fix this, perhaps someone super-savvy could write/code a script or work-around or something? I really need to get this thing working, my back is getting sore from bending over and plugging in / unplugging usb/monitor/usb/monitor/usb/usb over and over again lol... and i really would be sad if the constant plugging unplugging of the usb's or the d-sub port would over time damage the ports... i don't want that... There has to be some way to get this working.. Can anyone help? The KVM is a IOGEAR GCS632U Win7 x64 Ubuntu 10.10

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• iptables unresolved dependencies

  - by tertle

  I'm trying to setup OpenVPN Access Server on a VPS running ubuntu 9.10 for a friend so she can play games from her uni campus. The problem is I keep running into this error when trying to start openvpn. Service deferred error: IPTablesServiceBase: failed to run iptables-restore [status=1]: ['FATAL: Could not load /lib/modules/2.6.18-028stab070.14/modules.dep: No such file or directory', 'FATAL: Could not load /lib/modules/2.6.18-028stab070.14/modules.dep: No such file or directory', 'iptables-restore: line 46 failed']: internet/base:1175,internet/base:752,internet/process:45,internet/process:306,internet/_baseprocess:48,internet/process:775,internet/_baseprocess:60,svc/pp:116,svc/svcnotify:26,internet/defer:238,internet/defer:307,internet/defer:323,sagent/ipts:105,sagent/ipts:39,util/error:52,util/error:32 service failed to start due to unresolved dependencies: set(['user', 'iptables_openvpn']) service failed to start due to unresolved dependencies: set(['user', 'iptables_openvpn']) service failed to start due to unresolved dependencies: set(['iptables_openvpn']) Now I've already got my provider to enabled the TUN/TAP device driver and I checked this using # cat /dev/net/tun Which returned “File descriptor in bad state” Which I believe means it's enabled. After extensive searching, I've been unable to find any solution other than people suggesting to make sure TUN/TAP device driver is enabled. Any ideas on how to solve my issue? I'm not very experience with linux and I feel in over my head here so any advice is greatly appreciated. --edit-- Just stumbled across this Not sure how I missed it earlier. I believe I need to get modprobe ipt_mark & modprobe ipt_MARK run on the hostnode by my provider. Is this correct and something I should try get done.

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• Move a 2D square on y axis on android GLES2

  - by Dan

  I am trying to create a simple game for android, to start i am trying to make the square move down the y axis but the way i am doing it dosent move the square at all and i cant find any tutorials for GLES20 The on draw frame function in the render class updates the users position based on accleration dew to gravity, gets the transform matrix from the user class which is used to move the square down, then the program draws it. All that happens is that the square is drawn, no motion happens public void onDrawFrame(GL10 gl) { user.update(0.0, phy.AccelerationDewToGravity); GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT | GLES20.GL_DEPTH_BUFFER_BIT); // Re draws black background GLES20.glVertexAttribPointer(maPositionHandle, 3, GLES20.GL_FLOAT, false, 12, user.SquareVB);//triangleVB); GLES20.glEnableVertexAttribArray(maPositionHandle); GLES20.glUniformMatrix4fv(maPositionHandle, 1, false, user.getTransformMatrix(), 0); GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, 0, 4); } The update function in the player class is public void update(double vh, double vv) { Vh += vh; // Increase horrzontal Velosity Vv += vv; // Increase vertical velosity //Matrix.translateM(mMMatrix, 0, (int)Vh, (int)Vv, 0); Matrix.translateM(mMMatrix, 0, mMMatrix, 0, (float)Vh, (float)Vv, 0); }

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• If I install Ubuntu 12.04, will it recognize all of my RAM?

  - by user91048

  I have a question that's been bugging me since a long time. A friend of mine told me that when he had Ubuntu 11.10 installed the OS only recognized 3.4GB instead of 8GB. In the next week I'll be buying a new computer and I'll have 8GB of RAM, does the Video Card need to have it's own video memory for the OS to recognize the RAM entirely?. If you could give me some advise on how to configure my PC before I buy it it would be great. Thanks. Tengo una duda que me ronda de hace tiempo. Un amigo mio me comento que con ubuntu 11.10 tenia 8 gb de RAM y que solo le reconocia 3.4. Dentro de unos 5 dias me comprare un ordenador nuevo a base de componentes y voy a meterle 8 gb de RAM. ¿Hace falta que la tarjeta gráfica tenga Gb dedicados para que el sistema me reconozca la RAM entera? Si podeis darme algunos consejillos sobre como configurar el PC antes de comprarmelo para que ese problema no me pase, Muchisimas Gracias.

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• What did you learn today?

  - by Rajesh Pillai

  What did you learn today? Everyday teaches you something, some lesson or the other. Some day you learn a new language, a new skill or a new hobby or visit some new place, learn music, have a different dining experience, learn swimming, make some good friends, get in touch with some old friend etc. etc…. Each of these things teaches you something… So, what did you learn today? Some of the learnings from my past weeks are outlined below… Respect others. Don’t underestimate them. (Though I never consciously do so) Be careful with your words because words have different meanings if the context is not clear. Spend some time for your personal stuff and allow others do so. Every individual is different, their skills different, their thoughts are different, their perceptions are different. So, be polite. Time management. (This is a tough skill to master). At the end of the day I keep looking for more time so may be you. So, again What did you learn today? This reflection is important because if you don’t know what you are learning at every stage in your life, then your are not learning and not growing. In short you are not living. Learning is not memorization but it is self realization….. Happy learning!!!

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• How to explain a layperson why a developer should not be interrupted while neck-deep in coding?

  - by András Szepesházi

  If you just consider the second part of my question, "Why a developer should not be interrupted while neck-deep in coding", that has been discussed a number of times by smart people. Heck, even the co-founder of SO, Joel Spolsky, wrote a blog post about "getting in the zone" and "being knocked out of the zone" and why it takes an average of 15 minutes to achieve productivity when participating in complex, software development related tasks. So I think the why has been established. What I'm interested in is how to explain all that to somebody who doesn't know beans about Beans (khmm I mean software development). How to tell the wife, or the funny guy from accounting at the workplace, or the long time friend who pings you on Skype every 30 minutes with a "Wazzzzzzup?!", that all the interruptions have a much deeper impact on your work than the obvious 30 seconds they took from your time. Obviously you can't explain it by sentences like "I have to juggle a lot of variable names in my short term memory" unless you want to be the target of blank stares or friendly abuse. I'd like to be able to explain all that to non-developers in a way that will make them clearly understand - without being offensive, elitist or too technical. EDIT: Thanks to everyone for their great insights. I've accepted EpsilonVector's answer as his analogy was the closest one to my original needs. The "falling asleep" explanation is neither offensive nor technical, almost anyone can relate to it, and the consequences of getting disturbed while falling asleep or while being in the zone are very similar: you experience frustration and you "lose" 15-20 minutes of time.

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• any online service and/or application to develop a story line for an adventure game?

  - by Gajet

  I with a bunch of friend were talking about an adventure game. there will be too many possibilities in the game and the player can pick from wide varity of choices at each stage to do somthing. there will be consequences for each decision and they may or may not end the story. the result would be somthing like (picture from flashforward series S01E17)or if any of you watched hereos season 1 there is also similar time lines represented as strings in isaac mandez workshop. sorry for bad quality examples but right now I can't think of any better one. do you know any website or application which we can use to create the timeline? these features the least required ones: the ability to represent events as boxes. the ability to connect distant events to each other. the ability to move events on a scene freely the ability to expand the scene easily there should be some color options for the lines representing connections between events easily shareing the idea with one another it's much more better to have a WYSIWYG editor easily explore in the large scene of events in the end if you know any application which could let me create a board just like the one in my sample picture and share it whith other freinds it could help us a lot.

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• Struggling with the Single Responsibility Principle

  - by AngryBird

  Consider this example: I have a website. It allows users to make posts (can be anything) and add tags that describe the post. In the code, I have two classes that represent the post and tags. Lets call these classes Post and Tag. Post takes care of creating posts, deleting posts, updating posts, etc. Tag takes care of creating tags, deleting tags, updating tags, etc. There is one operation that is missing. The linking of tags to posts. I am struggling with who should do this operation. It could fit equally well in either class. On one hand, the Post class could have a function that takes a Tag as a parameter, and then stores it in a list of tags. On the other hand, the Tag class could have a function that takes a Post as a parameter and links the Tag to the Post. The above is just an example of my problem. I am actually running into this with multiple classes that are all similar. It could fit equally well in both. Short of actually putting the functionality in both classes, what conventions or design styles exist to help me solve this problem. I am assuming there has to be something short of just picking one? Maybe putting it in both classes is the correct answer?

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• How to install custom c library?

  - by arijit

  I just wanted to add a c library to Ubuntu which was created by Harvard University for cs50 course. They provided instructions for how to install the library which is listed below. Debian, Ubuntu First become root, as with: sudo su - Then install the CS50 Library as follows: apt-get install gcc wget http://mirror.cs50.net/library/c/cs50-library-c-3.1.zip unzip cs50-library-c-3.1.zip rm -f cs50-library-c-3.1.zip cd cs50-library-c-3.1 gcc -c -ggdb -std=c99 cs50.c -o cs50.o ar rcs libcs50.a cs50.o chmod 0644 cs50.h libcs50.a mkdir -p /usr/local/include chmod 0755 /usr/local/include mv -f cs50.h /usr/local/include mkdir -p /usr/local/lib chmod 0755 /usr/local/lib mv -f libcs50.a /usr/local/lib cd .. rm -rf cs50-library-c-3.1 I did exactly as directed. But the compiler reported “Undefined reference to a function”--the function was Get String. So, I searched for a solution and found one. It said to use the -l switch. Now when I compile I use something like: gcc –o hello.c hello –lcs50 (I don’t remember the exact command.) However, I cannot use the make command, which is easier to use. I understand that there is some problem with linking the library. What is a good solution to this problem?

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• HTML5 media loading sometimes suspends or aborts: misconfigured Apache?

  - by Joan Botella

  Recently, some code that has been working fine for months started to run unexpectedly. That code is just a media files loading JavaScript function, that uses jQuery. It's pretty long, but in essence it is like this: var $audio=$('<audio>'); $audio.on('canplaythrough',function(e){ $audio[0].play(); }); $audio.attr('src','song.ogg'); Basically, the file only loads sometimes, and sometimes stops loading with a suspend or even an abort event. I have uploaded a little testing HTML to http://www.joanbotella.com/tests/loading , where you can see what's happening. You can download the test files from http://www.joanbotella.com/tests/loading/loadingTest.zip for local testing. I have just checked that opening the test index.html file directly into Firefox, and not through my localhost Apache server, makes the audio files perfectly playable. So, I assume, my hosting and I have the Apache server misconfigured for serving media files. My software versions are: Apache 2.2.22-1ubuntu1.7 , Mozilla Firefox 31.0 , Chromium 36.0.1985.125 and jQuery 1.11.0. Can you help me? Thanks in advance!

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• Earmarks of a Professional PHP Programmer

  - by Scotty C.

  I'm a 19 year old student who really REALLY enjoys programming, and I'm hoping to glean from your years of experience here. At present, I'm studying PHP every chance I get, and have been for about 3 years, although I've never taken any formal classes. I'd love to some day be a programmer full time, and make a good career of it. My question to you is this: What do you consider to be the earmarks or traits of a professional programmer? Mainly in the field of PHP, but other, more generalized qualifications are also more than welcome, as I think PHP is more of a hobbyist language and may not be the language of choice in the eyes of potential employers. Please correct me if I'm wrong. Above all, I don't want to wast time on something that isn't worth while. I'm currently feeling pretty confident in my knowledge of PHP as a language, and I know that I could build just about anything I need and have it "work", but I feel sorely lacking in design concepts and code structure. I can even write object oriented code, but in my personal opinion, that isn't worth a hill of beans if it isn't organized well. For this reason, I bought Matt Zandstra's book "PHP Objects, Patterns, and Practice" and have been reading that a little every day. Anyway, I'm starting to digress a little here, so back to the original question. What advice would you give to an aspiring programmer who wants to make an impact in this field? Also, on a side note, I've been working on a project with a friend of mine that would give a fairly good idea of where I'm at coding wise. I'm gonna give a link, I don't want anyone to feel as though I'm pushing or spamming here, so don't click it if you don't want to. But if you are interested on giving some feedback there as well, you can see the code on github. I'm known as The Craw there. https://github.com/PureChat/PureChat--Beta-/tree/

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• JSON Support in Azure

  - by kaleidoscope

  Please find how we call JavaScript Object Notation in cloud applications. As we all know how client script is useful in web applications in terms of performance.           Same we can use JQuery in Asp.net using Cloud  computing which will  asynchronously pull any messages out of the table(cloud storage)  and display them in the     browser by invoking a method on a controller that returns JavaScript Object Notation (JSON) in a well-known shape. Syntax : Suppose we want to write a  JQuery function which return some notification while end user interact with our application so use following syntax : public JsonResult GetMessages() {      if (User.Identity.IsAuthenticated)      {     UserTextNotification[] userToasts =           toastRepository.GetNotifications(User.Identity.Name);          object[] data =          (from UserTextNotification toast in userToasts          select new { title = toast.Title ?? "Notification",          text = toast.MessageText }).ToArray();           return Json(data, JsonRequestBehavior.AllowGet);      }         else            return Json(null); } Above function is used to check authentication and display message if user is not exists in Table. Plateform :   ASP.NET 3.5  MVC 1   Under Visual Studio 2008  . Please find below link for more detail : http://msdn.microsoft.com/en-us/magazine/ee335721.aspx   Chandraprakash, S

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• When module calling gets ugly

  - by Pete

  Has this ever happened to you? You've got a suite of well designed, single-responsibility modules, covered by unit tests. In any higher-level function you code, you are (95% of the code) simply taking output from one module and passing it as input to the next. Then, you notice this higher-level function has turned into a 100+ line script with multiple responsibilities. Here is the problem. It is difficult (impossible) to test that script. At least, it seems so. Do you agree? In my current project, all of the bugs came from this script. Further detail: each script represents a unique solution, or algorithm, formed by using different modules in different ways. Question: how can you remedy this situation? Knee-jerk answer: break the script up into single-responsibility modules. Comment on knee-jerk answer: it already is! Best answer I can come up with so far: create higher-level connector objects which "wire" modules together in particular ways (take output from one module, feed it as input to another module). Thus if our script was: FooInput fooIn = new FooInput(1, 2); FooOutput fooOutput = fooModule(fooIn); Double runtimevalue = getsomething(fooOutput.whatever); BarInput barIn = new BarInput( runtimevalue, fooOutput.someOtherValue); BarOutput barOut = barModule(BarIn); It would become with a connector: FooBarConnectionAlgo fooBarConnector = new fooBarConnector(fooModule, barModule); FooInput fooIn = new FooInput(1, 2); BarOutput barOut = fooBarConnector(fooIn); So the advantage is, besides hiding some code and making things clearer, we can test FooBarConnectionAlgo. I'm sure this situation comes up a lot. What do you do?

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• Handling Types for Real and Complex Matrices in a BLAS Wrapper

  - by mga

  I come from a C background and I'm now learning OOP with C++. As an exercise (so please don't just say "this already exists"), I want to implement a wrapper for BLAS that will let the user write matrix algebra in an intuitive way (e.g. similar to MATLAB) e.g.: A = B*C*D.Inverse() + E.Transpose(); My problem is how to go about dealing with real (R) and complex (C) matrices, because of C++'s "curse" of letting you do the same thing in N different ways. I do have a clear idea of what it should look like to the user: s/he should be able to define the two separately, but operations would return a type depending on the types of the operands (R*R = R, C*C = C, R*C = C*R = C). Additionally R can be cast into C and vice versa (just by setting the imaginary parts to 0). I have considered the following options: As a real number is a special case of a complex number, inherit CMatrix from RMatrix. I quickly dismissed this as the two would have to return different types for the same getter function. Inherit RMatrix and CMatrix from Matrix. However, I can't really think of any common code that would go into Matrix (because of the different return types). Templates. Declare Matrix<T> and declare the getter function as T Get(int i, int j), and operator functions as Matrix *(Matrix RHS). Then specialize Matrix<double> and Matrix<complex>, and overload the functions. Then I couldn't really see what I would gain with templates, so why not just define RMatrix and CMatrix separately from each other, and then overload functions as necessary? Although this last option makes sense to me, there's an annoying voice inside my head saying this is not elegant, because the two are clearly related. Perhaps I'm missing an appropriate design pattern? So I guess what I'm looking for is either absolution for doing this, or advice on how to do better.

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• Standards & compliances for secure web application development?

  - by MarkusK

  I am working with developers right now that write code the way they want and when i tell them to do it other way they respond that its just matter of preference how to do it and they have their way and i have mine. I am not talking about the formatting of code, but rather of way site is organized in classes and the way the utilize them. and the way they create functions and process forms etc. Their coding does not match my standards, but again they argue that its matter of preference and as long as goal achieved the can be different way's to do it. I agree but their way is proven to have bugs and we spend a lot of time going back and forth with them to fix all problems security or functionality, yet they still write same code no matter how many times i asked them to stop doing certain things. Now i am ready to dismiss them but friend of mine told me that he has same exact problem with freelance developers he work with. So i don't want to trade one bad apple for another. Question is is there some world wide (or at least europe and usa) accepted standard or compliance on how write secure web based applications. What application architecture should be for maintainable application. Is there are some general standard that can be used for any language ruby php or java govern security and functionality and quality of code? Or at least for PHP and MySQL i use for my website. So i can make them follow this strict standard and stop making excuses.

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• CyanogenMod Updates; Rolls out Android 2.3 to the Less Fortunate

  - by ETC

  If you’re one of the less fortunate (namely those forgotten by their carrier when it comes to phone OS upgrade time) you’ve got a friend in Cyanogen. They’ve rolled out a new Release Candidate update that includes Android 2.3 and a host of performance tweaks. First thing to note is that this is an RC and if you upgrade from CyanogenMod 6 to CyanogenMod 7 RC you’ll be trading a little bit of stability and a few features that haven’t made the jump from 6 to 7 in return for the newest features of Android 2.3. If you’re not comfortable with that wait for CyanogenMod 7 to update to a final release. For the intrepid, hit up the link below to read more and grab a copy. CyanogenMod-7 Release Candidates! [Cyanogen via Download Squad] Latest Features How-To Geek ETC Ask How-To Geek: How Can I Monitor My Bandwidth Usage? Internet Explorer 9 RC Now Available: Here’s the Most Interesting New Stuff Here’s a Super Simple Trick to Defeating Fake Anti-Virus Malware How to Change the Default Application for Android Tasks Stop Believing TV’s Lies: The Real Truth About "Enhancing" Images The How-To Geek Valentine’s Day Gift Guide CyanogenMod Updates; Rolls out Android 2.3 to the Less Fortunate MyPaint is an Open-Source Graphics App for Digital Painters Can the Birds and Pigs Really Be Friends in the End? [Angry Birds Video] Add the 2D Version of the New Unity Interface to Ubuntu 10.10 and 11.04 MightyMintyBoost Is a 3-in-1 Gadget Charger Watson Ties Against Human Jeopardy Opponents

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• TDD: Write a separate test for object initialization or relying on other tests exercising it

  - by DXM

  This seems to be the common pattern that's emerging in some of the tests I've worked on lately. We have a class, and quite often this is legacy code whose design can't be easily altered, which has a bunch of member variables. There's some kind of "Initialize" or "Load" function which would put an object into a valid state. Only after it is initialized/loaded, are the members in the proper state so that other methods can be exercised. So when we start writing tests, first test is "TestLoad" and all we put in there is exercising initialization logic. Then we might add one (or few) TestLoadFailureXXX tests and those are definitely valuable. Then we start writing tests to verify other behaviors but all of them require the object to be loaded. So they all start by running exactly the same code as "TestLoad". So my question: Is TestLoad even necessary? Do you take it and let other tests simply exercise the loading? Or leave it so things are more explicit? I know that each unit test function should have no (or as little as possible) overlap with other test functions, but it seems like in cases of loading, this is unavoidable. And whether we like it or not, if something in the loading code breaks, we will end up with a whole test suite of failures. Is there another approach that I might be missing here? Thank you for the responses. It definitely makes sense that you want to see "InitializationTest" and if that fails you know where to start looking. In case it matters, this question is mostly about C++ and we use CppUnit framework. And now, thanks to sleske, I'll be constantly wishing that CppUnit supported test dependencies. Might have to hack something in one of these days :)

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• How bad it's have two methods with the same name but differents signatures in two classes?

  - by Super User

  I have a design problem relationated with the public interface, the names of methods and the understanding of my API and my code. I have two classes like this: class A: ... function collision(self): .... ... class B: .... function _collision(self, another_object, l, r, t, b): .... The first class have one public method named collision and the second have one private method called _collision. The two methods differs in arguments type and number. In the API _m method is private. For the example let's say that the _collision method checks if the object is colliding with another_ object with certain conditions l, r, t, b (for example, collide the left side, the right side, etc) and returns true or false according to the case. The collision method, on the other hand, resolves all the collisions of the object with other objects. The two methods have the same name because I think is better avoid overload the design with different names for methods who do almost the same think, but in distinct contexts and classes. This is clear enough to the reader or I should change the method's name?

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• Can Mailchimp APIs be used to send templated transaction email triggered by actions on my website?

  - by HenryW

  I am currently playing around with Mailchimp's APIs, but the documentation to me is not very clear. Here is what I actually want: Have the templates I created on Mailchimp, be visible on my own server. Assign each template I made to a specific action (logged in,subscribed, created order, or new password). This is functionality that I already tested with Mandrill, but the template exists on mandrill's account. If option 1 is not possible, can I still make my own template in my own environment, and send that template out over Mailchimp or Mandrill? Should I use Mailchimps services for this or send the email directly from my own server? Curent used function: function tep_mandrill_mail($to_name, $to_email_address, $email_subject, $email_text, $from_email_name, $from_email_address) { if (SEND_EMAILS != 'true') return false; $uri = 'https://mandrillapp.com/api/1.0/messages/send-template.json'; $postString = '{ "key": "xxxxxxxxxxx", "template_name": "sometemplatename", "template_content": [ { "name": "header", "content": "*|HEADERSTUFF|*" }, { "name": "main", "content": "*|CONTENTSTUFF|*" }, { "name": "footer", "content": "*|FOOTERSTUFF|*" } ], "message": { "subject": "'.$email_subject.'", "from_email": "'.$from_email_adress.'", "from_name": "'.$from_email_name.'", "to": [ { "email": "'.$to_email_address.'", "name": "'.$to_name.'" } ], "important": false, "track_opens": true, "merge": true, "merge_vars": [ { "rcpt": "'.$to_email_address.'", "vars": [ { "name": "HEADERSTUFF", "content": "'.$email_subject.'" }, { "name": "CONTENTSTUFF", "content": "'.$email_text.'" }, { "name": "FOOTERSTUFF", "content": "paulvale-foot" } ] } ], "tags": [ "password_forgotten" ] }, "async": false, "ip_pool": "Main Pool" }'; $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $uri); curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true ); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true ); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch, CURLOPT_POSTFIELDS, $postString); curl_exec($ch); }

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