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• Will we be penalized for having multiple external links to the same site?

  - by merk

  There seem to be conflicting answers on this question. The most relevant ones seem to be at least a year or two old, so I thought it would be worth re-asking this question. My gut says it's ok, because there are plenty of sites out there that do this already. Every major retailer site usually has links to the manufacturer of whatever item they are selling. go to www.newegg.com and they have hundreds of links to the same site since they sell multiple items from the same brand. Our site allows people to list a specific genre of items for sale (not porn - i'm just keeping it generic since I'm not trying to advertise) and on each item listing page, we have a link back to their website if they want. Our SEO guy is saying this is really bad and google is going to treat us as a link farm. My gut says when we have to start limiting user useful features to our site to boost our ranking, then something is wrong. Or start jumping through hoops by trying to hide text using javascript etc Some clients are only selling 1 to a handful of items, while a couple of our bigger clients have hundreds of items listed so will have hundreds of pages that link back to their site. I should also mention, there will be a handful of pages with the bigger clients where it may appear they have duplicate pages, because they will be selling 2 or 3 of the same item, and the only difference in the content of the page might just be a stock #. The majority of the pages though will have unique content. So - will we be penalized in some way for having anywhere from a handful to a few hundred pages that all point to the same link? If we are penalized, what's the suggested way to handle this? We still want to give users the option to go to the clients site, and we would still like to give a link back to the clients site to help their own SE rankings.

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• Can anyone point me to some open source directX rendering engines or frameworks? [on hold]

  - by Jim

  I'm completely new to graphics API programmming, but not at all new to the theory and principle operation of game engines and rendering engines. That being said, I want to do some experiments of rendering very dense geometry scenes in a basic rendering engine or game engine. I don't need a lot of bells and whistles. What I need is enough control that I can implement my own scene graph algorithms and control the rendering pipeline very specifically. My ideal candidate engine would be either a rendering engine or game engine with a modular design that might be ready to go out of the box but would be simple enough in case I need to rip out some of the guts in the rendering management and implement my own. It's a tough call because I'm right at the level where it's almost better to go from scratch, but there's no sense in having to build every single basic thing such as heirarchical transforms, etc. I just want to work with rendering optimization to push dense geometry for maximum FPS. Does anyone have a suggestion for an engine or basic framework to use? I requested DirectX in my title because I figured it would likely be better supported and less likely for me to run into some obscure less-documented problem. But OpenGL might be acceptable if the recommended framework was definitely better than my other options. EDIT: I should add that I really want GPU tessellation support (part of adding to the density of geometry detail).

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• Question about modeling with MVC (the pattern, not the MS stuff / non web)

  - by paul

  I'm working on an application in which I'm looking to employ the MVC pattern, but I've come up against a design decision point I could use some help with. My application is going to deal with the design of state-machines. Currently the MVC model holds information about the machine's states, inputs, outputs, etc. The view is going to show a diagram for the machine, graphically allowing the user to add new states, establish transitions, and put the states in a pleasing arrangement, among other things. I would like to store part of the diagram's state (e.g. the x and y state positions) when the machine information is stored for later retrieval, and am wondering how best to go about structuring the model(s?) for this. It seems like this UI information is more closely related to the view than to the state-machine model, so I was thinking that a secondary model might be in order, but I am reluctant to pursue this route because of the added complexity. Adding this information to the current model doesn't seem the right way to go about it either. This is the my first time using the MVC pattern so I'm still figuring things out. Any input would be appreciated.

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• Workflow: Deploy Operating Systems

  - by Owen Allen

  The Deploy Operating Systems workflow is a workflow document that we added recently. It shows you how to get operating systems up and running in your environment. It's mostly linear, but it's a bit more complicated than some of the others. It's built around a pair of images. In both images, the left side shows the prerequisites for the whole process. Before you can deploy operating systems, you have to have Ops Center fully installed, with libraries set up and hardware already discovered. Once you've done that preparation, the first image walks you through all of the OS deployment steps. First you discover existing operating systems, then you provision Oracle Solaris 10 or Oracle Solaris 11. If you're not planning on using virtualization, then your deployment is done, and you're directed to the operate workflows. If you are interested in virtualization, though, you go on to the second image: The second image walks you through deploying virtualization, sending you to the Deploying Oracle Solaris 10 Zones, Deploying Oracle Solaris 11 Zones, or Deploying Oracle VM Server for SPARC workflows, depending on what kind of virtualization you're planning on using. Once you've done that, you're ready to go on to the operation workflows.

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• What does it mean to be agile?

  - by JD01

  We have a project that everyone says we will be doing in a agile way but I doubt we have clearly understood what agile is. In previous projects we had planning meetings, then defined the product back log and allocated the work to developers in 2 to 3 week sprints. Every morning we had scrum meetings (which seemed to go on for 1/2 an hour each time) and each developer got on with it after that. Hardly anyone wrote any tests until at the end of sprint and work that was not completed was added on to the next sprint. Developers hardly spoke to each other and there was no TDD involved in development. In fact most developers had a spec at the start and just got on with it for the 2 or 3 weeks the sprint was arranged for. There was hardly any communication with the client/stake holder. QA got involved usually a few months later and by then we found missing requirements which further increased the amount of work we had to do. Clearly there was no feedback loop. So my question is, where did we go wrong and how can I prevent the team from making the same mistakes.

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• Need ideas on how to give my levels structure

  - by akuritsu

  I am making an iOS game for a project at school. It is going to be a tiny bit like Fruit Ninja, as in it will have different things on the screen, and when you hit them, they die, and you get points. The trouble is that unlike Fruit Ninja, my game will have different types of sprites, all doing different things (moving different places, doing different things, etc). The one thing that is bad about having all of these sprites that do different things is that it is hard for them to look neat on the screen all together. I was planning on having a couple of different gamemodes: Time Trial You have 120 seconds to kill as many sprites as possible. Survival You have three lives, every time you try to hit a sprite and miss, you lose a life. ???? Whatever I think of. I am a rookie to game design in general, and I don't know the best way to make my game look good, and play well. I could have all of these sprites on the screen at the same time, or I could have them come in waves, for example 10 of sprite_a come on, and once they are killed, 10 of sprite_b come on, etc... Please give me your opinion about which one I should code. If you have any other suggestions for either a third gamemode, or a completely different way to make the levels, feel free to tell me.

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• Dark NetBeans

  - by Geertjan

  Let's make NetBeans IDE look like this. Not saying it's a nice color or anything, just that it's possible to do so: I changed the coloring in the Java editor by going to Tools | Options, then chose "Fonts & Colors", then selected the "Norway Today" profile and changed the background setting to Dark Gray. Next, I put this themes.xml file into the "config" folder of the NetBeans IDE user directory, which you can identify as such by going to Help | About in the IDE. Go to the exact location defined by "User directory" in Help | About, and then go to the "config" folder within that folder: The "config" folder of the user directory is the readable/writable root of the NetBeans IDE virtual filesystem. If a themes.xml file is found there, it is used, as described here. Then, in netbeans.conf file, which is not in the NetBeans user directory but in the NetBeans installation directory, within its "etc" folder, I added the following to "netbeans_default_options": -J-Dnetbeans.useTheme=true --laf Metal The first of these enables usage of the themes.xml file, i.e., it notifies NetBeans IDE at startup to load the themes.xml file and to apply the content to the relevant UI components, while the second is needed because most/all of the themes only work if you're using the Metal Look and Feel. Note: I must add that in most cases, whatever it is you're trying to achieve via a themes.xml file can probably be achieved in a different, and better, way. The themes.xml mechanism has been there forever, but is not actively supported or tested, though it may work for the specific thing you're trying to do anyway. For example, if you're trying to change the background color of a TopComponent, use the paintComponent method of the TopComponent instead of using a themes.xml file.

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• Two Hidden NetBeans Keyboard Shortcuts for Opening & Toggling between Views

  - by Geertjan

  The following are two really basic shortcuts for working with NetBeans editor windows that will be added to the Keyboard Shortcuts card for NetBeans IDE 7.2: Ctrl-Alt-PgUp/PgDown: Shortcuts for switching between editor types (e.g. Source, Design, History buttons). Switching between the editor types is a frequent operation sometimes, e.g., when using GUI builder, and while it can be done easily via mouse, or from View | Editors menu, it is very handy to know the shortcuts as well. Ctrl-PgUp/PgDown: Similarly, these are shortcuts for switching to next/previous opened document (tab). Note this is not like Ctrl-Tab that cycles in the last used order, but going through the tabs as they appear in the editor. Both shortcuts should fit into the "Opening and Toggling between Views" section. These are important to mention on the card because they are not visible anywhere else in the UI (as there are no menu items like "Go to next/previous editor type" or "Go to next/previous document"). Reported by Tomas Pavek from the NetBeans Team, here: http://netbeans.org/bugzilla/show_bug.cgi?id=213815

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• Offsite Backup

  - by Grant Fritchey

  There was a recent weather event in the United States that seriously impacted our power grid and our physical well being. Lots of businesses found that they couldn’t get to their building or that their building was gone. Many of them got to do a full test of their disaster recovery processes. A big part of DR is having the ability to get yourself back online in a different location. Now, most of us are not going to be paying for multiple sites, but, we need the ability to move to one if needed. The best thing you can to start to set this up is have an off-site backup. Want an easy way to automate that? I mean, yeah, you can go to tape or to a portable drive (much more likely these days) and then carry that home, but we’ve all got access to offsite storage these days, SkyDrive, DropBox, S3, etc. How about just backing up to there? I agree. Great idea. That’s why Red Gate is setting up some methods around it. Want to take part in the early access program? Go here and try it out.

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• Is it reasonable to null guard every single dereferenced pointer?

  - by evadeflow

  At a new job, I've been getting flagged in code reviews for code like this: PowerManager::PowerManager(IMsgSender* msgSender) : msgSender_(msgSender) { } void PowerManager::SignalShutdown() { msgSender_->sendMsg("shutdown()"); } I'm told that last method should read: void PowerManager::SignalShutdown() { if (msgSender_) { msgSender_->sendMsg("shutdown()"); } } i.e., I must put a NULL guard around the msgSender_ variable, even though it is a private data member. It's difficult for me to restrain myself from using expletives to describe how I feel about this piece of 'wisdom'. When I ask for an explanation, I get a litany of horror stories about how some junior programmer, some-year, got confused about how a class was supposed to work and accidentally deleted a member he shouldn't have (and set it to NULL afterwards, apparently), and things blew up in the field right after a product release, and we've "learned the hard way, trust us" that it's better to just NULL check everything. To me, this feels like cargo cult programming, plain and simple. A few well-meaning colleagues are earnestly trying to help me 'get it' and see how this will help me write more robust code, but... I can't help feeling like they're the ones who don't get it. Is it reasonable for a coding standard to require that every single pointer dereferenced in a function be checked for NULL first—even private data members? (Note: To give some context, we make a consumer electronics device, not an air traffic control system or some other 'failure-equals-people-die' product.) EDIT: In the above example, the msgSender_ collaborator isn't optional. If it's ever NULL, it indicates a bug. The only reason it is passed into the constructor is so PowerManager can be tested with a mock IMsgSender subclass.

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• Efficient Algorithm for Recording gameplay's objects positions

  - by Scorch

  So, I have a game idea in mind, and for that I need to record the game around the player. I'me not talking about recording it as video, but rather recording the scene objects, and their positions within the game, and then render them, giving the player the ability to go back and forth, to stop time and move around. I've made a prototype with some data structures in C#, since this is going to be the programming language we'll be using in our game, but if we want the player to be able to go back just five minutes back with the data of just 100 NPC's, it takes almost 1GB of RAM. Right now, I'm just storing a Doubly linked list, each item with the object position. In the game, I'll need to store even more data in each node, so I need something even more ligher. Of course, this algorithm is zero optimized, but still, that is a lot. The alternatives would be create the NPC's that aren't really important to the game when the user is viewing the past, but I don't really like it very much for the sake of realism. I wonder if there is a better way to store this? Thanks in advance, Scorch

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• Installing Java ME SDK Plugin for NetBeans is now much easier!

  - by SungmoonCho

  The other day, I wrote about how to download and install Java ME SDK plugin for NetBeans. If you are using NetBeans 7.2.1 or later, you don't have to go through the whole process at all. It's now a matter of a few clicks, because all the plugins are now all in NetBeans update server. Here is a new way to install and integrate Java ME SDK plugins for NetBeans. 1. On NetBeans, go to "Tools"- "Plugins". 2. Click on "Available Plugins" tab. Locate "Java ME SDK Tools". 3. Check the tools you want to install, and click "Install" button at the bottom left corner. 4. NetBeans will restart, and that's it! Remember that different Java ME SDK requires different version of Plugins. If you are using Java ME SDK 3.0.5 or earlier, you must install Java ME SDK Tool version 2.0 (works with NetBeans 7.1.2 or earlier) If you are using Java ME SDK 3.2 or later, you must install Java ME SDK Tool version 3.0 (works with NetBeans 7.2 or later)

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• Make a basic running sprite effect

  - by PhaDaPhunk

  I'm building my very first game with XNA and i'm trying to get my sprite to run. Everything is working fine for the first sprite. E.g : if I go right(D) my sprite is looking right , if I go left(A) my sprite is looking left and if I don't touch anything my sprite is the default one. Now what I want to do is if the sprite goes Right, i want to alternatively change sprites (left leg, right leg, left leg etc..) xCurrent is the current sprite drawn xRunRight is the first running Sprite and xRunRight1 is the one that have to exchange with xRunRight while running right. This is what I have now : protected override void Update(GameTime gameTime) { float timer = 0f; float interval = 50f; bool frame1 = false ; bool frame2 = false; bool running = false; KeyboardState FaKeyboard = Keyboard.GetState(); // Allows the game to exit if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed) this.Exit(); if ((FaKeyboard.IsKeyUp(Keys.A)) || (FaKeyboard.IsKeyUp(Keys.D))) { xCurrent = xDefault; } if (FaKeyboard.IsKeyDown(Keys.D)) { timer += (float)gameTime.ElapsedGameTime.TotalMilliseconds; if (timer > interval) { if (frame1) { xCurrent = xRunRight; frame1 = false; } else { xCurrent = xRunRight1; frame1 = true; } } xPosition += xDeplacement; } Any ideas...? I've been stuck on this for a while.. Thanks in advance and let me know if you need any other part from the code.

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• Should I indicate that the user exists or was deleted on the error page?

  - by animuson

  On an ordinary public website, the user's profile is always publicly visible to all visitors (such as Stack Overflow), where they can limit certain pieces of information via privacy settings or just removing the information. Now the user has decided to delete their account (in my case deactivate) so that their account doesn't technically "exist" anymore. The way my system is set up, when their account is deactivated, their username for any content connected to them just becomes "Anonymous User" as if it were a guest that posted. I feel like this could cause some confusion for other users. I'm also concerned about what kind of error to display when someone attempts to view their profile page. My gut tells me to just display a standard 404 page to hide the fact that they ever existed, but then you also have to consider that, since usernames must be unique, anyone can go to the register page and type in the username to see if it really exists or not. I have a similar problem with another website, which gives users the ability to hide their profiles from the public and only allow registered users to view it. Again it's with the dilemma of what kind of error message to display when an unregistered users attempts to view their profile with invalid permissions. So, would it be acceptable to display basic errors such as "user has been deactivated" or "you must be logged in to view this profile" in order to give other visitors some idea of why the page can't be displayed, or should I attempt to cover the user's privacy a little and just display a standard 404 without indicating in any way that the user might exist? Are there any other issues that I'm not realizing about either route? To go back to the beginning, should I even bother changing the user's name to "Anonymous User" when their account is deactivated? Would it be acceptable to just display a non-linked version of their username in place of the normal linked display name?

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• Move a player to another team, with players stored in one arraylist and teams in another using java

  - by user1056758

  Basically I have a team class, which has an array list that store the players in. In the driver class theres an arraylist that stores the teams. Anyhow I've worked out how to add a player to a specific team and like wise remove a player from said team. Where I'm hitting problems is when I try to transfer one player to another. My understanding is to scan through the first team,and get the player. Then some how add this player to another, by scanning through the chosen team and add to it? I've tried this way but it seems to replace the original player with the new player in both teams. My other approach would be to somehow return the parameters of the player object, create another with the return parameters, remove the orignal then add the new instance in the other team? Really not quite generally how I can go about this, been trying all afternoon! If someone could offer me a general idea, then I can go off and apply the understanding to practice. Many thanks

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• Which powerful laptop, with UK keyboard and 8gb ram

  - by RobinL

  I've been searching high and low for high spec laptops compatible with Ubuntu. The lack of coherent information on the topic is high (considering the number of people who apparently want a good laptop with an OS operating system). So I thought you may have some advice. My requirements: a) has = 8Gb ram b) is compatible with Ubuntu c) has a UK keyboard and charger d) does not cost the Earth Which would you go for? Does anyone have good experience with high-end laptops running Ubuntu? So here's some background research: Samsung Series 7 looks great, but has various problems on Ubuntu, including: poor battery life, touchpad does not work, graphics card not fully supported and sucks power when it does (see [here] and [here], for example). Other options on the [wish list] include: the sensible [Acer] (possibly n.1 choice, but not sure about graphics card compatibility or battery), a nice looking [HP Pavilion dv6-6c56ea], which also has incompatibility issues (see [here] and [here] and check ubuntuforums) And another [Acer] which may be best due to its simplicity and cheapness. Other sub-questions: didn't Dell offer Ubuntu support for decent laptops (above 6Gb ram their offerings are scarce); what about pre-installed options such as those provided by System76? If it weren't for the UK keyboard and charger, I'd probably go for this [amazing-looking] [machine]. Many thanks for any advice, P.s. Apologies for lack of hyperlinks; I'm a noob so only allowed 2 :( All 10 links are available here though for the interested reader :) Robin

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• New Workstation &ndash; Lenovo W530 Core i7 32GB 256GB SSD Win8Pro

  - by Brian Lanham

  So I pretty-much have my new machine up and running full-time. I am still going to have to hit my old workstation for some things but am more-or-less working on my new machine.  It’s really fast. And Bret was right, I’m not so far using all the RAM. 16 would have been enough but as @CodeMonkeyJava “go big or go home”. Windows 8 is…interesting.  So far I still seem to do most of my work in the “Desktop”.  However, I like the Store concept and I like the Metro UX.  Live tiles are also nice.  I really like how I can switch between Desktop and Metro easily.  Overall I think Microsoft has done a great job of combining the needed experience for touch and mouse. My overall Windows 8 rating is 5.9 because of the video card. Otherwise I’m hitting 7.8.  The system boots from cold in about 11 seconds and performs complete shutdown in 4.7 seconds.  It wakes from sleep in less than 1 second. VS 2012 starts and restarts almost instantly.  In fact, I find myself staring at the start page without realizing it.  Build time doesn’t seem to be significantly increased but it is faster. I seem to already be reinvigorated for work with this new machine. I’m looking forward to the performance.

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• Can't install Ubuntu in Windows 8

  - by user171635

  I’ve been trying to install Ubuntu 13.04 64-bit edition on an ASUS (K53Z) laptop. I have Windows 8 64-bit installed in a non UEFI mode (I think since it starts-up with the Windows logo and I don’t have the UEFI settings). This laptop had installed Windows 7 and when I upgraded it I didn’t knew about the UEFI advantages. I tried several times to install Ubuntu from a USB device and it loads the logo and then I can’t go further in the installation. I thought it was the version of Ubuntu and tried to install Fedora (even if I personally prefer Ubuntu). I had the same problem: Fedora’s logo appears and it gets stuck. I tried also to boot from different USB devices and didn’t work either. My Bios has EFI options to boot but they were not enabled. So I tried to enable them to boot the USB in UEFI mode. A menu shows up with the options of install Ubuntu and try Ubuntu. If I click the Install or try option, I get a black screen and I can’t go further with the install (which I think is normal since I don’t have Windows 8 in EFI mode). My hypothesis is that the Bios isn’t letting Ubuntu write or read from my SSD, because the activity LED in the USB memory is on when it’s loading the installation files. Once the files are ready and the Ubuntu logo is loaded I don’t see a LED activity on neither the SSD or the USB. Thanks If I missed data you can ask me.

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• Spending a good fortune on a certificate holding Scrum Master or a Veteran XP coach?

  - by ashy_32bit

  There is a very prestigious company that delivers a well-sold software about financial systems. It has more that 20 years of history, and is staffed with about 20 programmers and much larger number of managerial staff. Dissatisfied customers have reported strange bugs and no one has a clue what is wrong, hard to read code, and customization is prohibitively expensive. In a word, the software is rotten. The company decided to spend a fortune and found the Agile thing as the remedy but they are stuck about what it is they need most urgently. Is it about the process or the developers or both? The challenge breaks down to the following options: They can hire a certificate holding Scrum Master to teach them Scrum. When asked about the value of doing it, the SM responded: "I will prepare them to embrace Agile and only then they can go Agile and save the product". They can as well hire a veteran XP coach. When posed with the same question he responded : "The most urgent problem is with the programmers and not the management, XP will save the product from rot and only then Scrum will make sense" Developers are far from capable of doing agile programming practices at the moment. No unit tests, no pair programmings, no CI (huh? what is it?) ... you get the idea. Some say they would be far better trying to improve their programming first (hire option 2) and then go with the process. Many say quite the opposite. Any insights ?

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• Why are prefab customizations being applied to only a single character? [on hold]

  - by m0rgul

  I've built my (networked) game to the point where I have a room, some characters and a character customization screen. In the character customization screen I get to chose gender, chose from three different wardrobe options and assign custom colors to these wardrobe items. Then I use a custom object to store these options, serialize them and store them in PlayerPrefs, then load the next scene and apply them to my chosen character in this scene. Then I go and spawn some more characters, customize them, etc. The problem is that my character is always customized, but all other characters in the scene are default copies of the prefab. The prefabs themselves are a generic male and a generic female, both with three different wardrobes to chose from (they are included in the prefab). When I spawn my character, I go to the saved options in PlayerPrefs, destroy the two discarded wardrobes, apply color to my chosen wardrobe and then spawn the character. How would it be possible to make the other characters also show up in their customized form rather than just the generic prefab (which shows all three wardrobes at the same time)?

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• Bad previous code. To fix or not to fix?

  - by Viniyo Shouta

  As a freelancer programmer I am often asked to edit part of an application source code in order to add functionalities, fix bugs etc. While I'm on my adventure journey to study the source to do what I'm asked correctly I run into code like: World::User* GetWorld() { map<DWORD,World*>::iterator it = mapWld.find( m_userWorldId ) if( it != mapWld.end() ) return &it->second; return NULL; } if( pUser->GetWorld()->GetId() == 250 ) If I investigate further I end up finding that the DWORD class member of User, userWorldId can be a value non-found in the map mapWld, which will lead to a casuality as also known as crash! The obviously valid way to do it is: World* pWorld = pUser->GetWorld(); if( pWorld && pWorld->GetId() == 250 )//... Sometimes when it's something just 'small' I end up sort of 'fixing' it. But sometimes when I'm on a 500 thousand line source code and this kind of code is everywhere there is no much can do. The question is if it's politically correct to fix some of these things. Think of it; You are not paid to fix it. Perhaps you think it's right, but it was necessarily done that way for some reason and you should not be messing with it. You do not have authorization, you do not own the source and none of the copyrights belong to you. You have authorization to edit issues accordingly to the owners but you're in a hurry, you have many other projects to do, it's the end of the month, you must pay the bills. Sincerely, I think of it as seeing an animal die from a disease in front of you, you have the cure in your hands but you do nothing. What is the best to do in this scenario?

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• How to reset a List c# and XNA [on hold]

  - by P3erfect

  I need to do a "retry" option when the player finishes the game.For doing this I thought to reset the lists of Monsters and other objects that moved at the first playing or which have been "killed".for example I have a list like that: //the enemy1 class is already done // in Game1 I declare it List<enemy1> enem1 = new List<enemy1>(); //Initialize method List<enemy1> enem1 = new List<enemy1>(); //LoadContent foreach (enemy1 enemy in enem1) { enemy.Load(Content); } enem1.Add(new enemy1(Content.Load<Texture2D>("enemy"), new Vector2(5900, 12600))); //Update foreach (enemy1 enemy in enem1) { enemy.Update(gameTime); } //after being shoted the enemies disappear and i remove them //if the monsters are shoted the bool "visible" goes from false to true for (int i = enem1.Count - 1; i >= 0; --i) { if (enem1[i].visible == true) enem1.RemoveAt(i); } //Draw foreach (enemy1 enemy in enem1) { if(enemy.visble==false) { enemy.Draw(spriteBatch, gameTime); } } //So my problem is to restart the game. I did this in Update method if(lost==false) { //update all the things... } if(lost==true)//this is if I die { //here I have to put the code that restore the list //I tried: foreach (enemy1 enemy in enem1) { enemy.visible=false; } player.life=3;//initializing the player,points,time player.position=initialPosition; points=0; time=0; }//the player works.. } } they should be drawn again but if I removed them they won't be drawn anymore.If I don't remove them ,instead, the enemies are in different places (because they follow me). Any suggestions to restore or reinitialize the list??

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• batch: comparing filenames and renaming [migrated]

  - by user2978770

  i'm new to both this platform and batch programming and i'm slowly but steadily driving crazy :-( I'm studying in Germany and just started on a bigger project that mainly consists of analyzing data and finding algorithms in order to maintain a certain function of a system. In order to get started i got a bunch of recorded data that, unfortunately, is not consistent when i comes to naming. Normally all files (all in one folder) should start with SPY.SPYNODE.SIDE and then go on with the specific names for each values or variables. However, the data logger messed it up a couple of times and gives weird names like SP0E1A~1.csv (all files are .csv-files). An that's when i figured in stead of renaming a couple of thousand files manually i could "easily" use a simple batch file to do that job for name. And that's exactly when I started to go crazy :-) So far i came up with the following: FOR /R %%i in (%CD%) DO ( set file1=%%i if not %file1%=="SPY.SPYNODE.SIDE" DO ( set /p "filename" < %file1% rename %file1% %filename% ) ) So what i want it to do is this (in pseudo) look through the whole folder and every file save the filename in variable file1 if file1 partially equals SPY.SPYNODE.SIDE open the file and save the first line (which contains the correct name of the file) in variable filename rename the file with the correct filename But so far it doesn't really work and i don't know why. Could anybody give me a hint or some advice how i should proceed? I really appreciate any kind of help!

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• Re: # 47209 How to copy an Existing HD to a new one and have it be bootable?

  - by user281151

  Help please! My backup method of choice is to clone my "working" drive to another identical drive. I have 2 windows drives and I clone my working one to the other one once per month. No problem - each will boot if I select it. Now with the lack of future support for XP, I am getting familiar with Ubuntu 14.04 LTS. I have it on one drive and I have a second identical drive that I want to be able to clone it to once/month. Not as necessary to do this with Ubuntu as with windows, I know, but I'm anal. So I have followed #47209 MestreLion's procedure with just the two Ubuntu drives "on line". I.e., boot my "working" drive with Live CD, use Gparted to be sure I know what's what, open terminal and enter and execute the dd command, Go to bed till the clone is done, shut down the computer, disconnect the input/source drive, boot up using BIOS to select the remaining output drive. The drive starts fine but all is not OK. It puts up a screen that says I'm on a Guest Session and asks for a password. Well, for one thing I have my Ubuntu set up to start without a password being entered. I have one, of course, I put it in but it isn't accepted. I can't get by this Guest Session screen. I am fine, of course. I can disconnect this drive, hook up my "main" ubuntu drive and all the rest, and go on with my business. But I don't have the desired "emergency backup" drive working where I could jump on and use it immediately if I needed it. Can someone give me some guidance here?? What (else) do I need to do. Love Ubuntu but learning. Thanks, Wes.

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• Problems with 3D transformation - (SharpDX)

  - by Morphex

  First of all , I have been trying to get this right for a couple of day already, I have read so much info and still fail miserably to understand this. So I am going to tell you that even though I have done fairly amount of research myself, I failed to implement it. I must say miserably I am trying to create a generic camera class for a game engine of sorts - for research purposes only - the thing is I have no idea how to go about it. I have read about quaternions and matrices, but when it comes to the actual implementation I suck at it. Sharpdx has already Matrices and QUaternions implemented. SO no big deal on the map behind it. How in the world would I go about creating a camera? I have seen so many camera examples and still can't make one that works as expected. I would like to implement diferent types too (Orbital, 6DoF, FPS). So what is need for a camera? UP, Forward and Right vectors I read they are needed, also a quaternion for rotations, and View and Projection matrices. I understand that a FPS camera for instance only rotates around the World Y and the Right Axis of the camera. the 6DoF rotates always around their own axis, and the orbital is just translating for set distance and making it look always at a fixed target point. The concepts are there, now implementing this is not trivial for me. Can anyone point me on what am I missing, what I got wrong? I would really enjoy if you could give a tutorial, some piece of code, or just plain explanation of the concepts. Thank you for readin, a frustrated coder.

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