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• Large resolution differences

  - by Robin Betka

  I want to develop a game on multiple devices such as PC, Android or IOS. Want it to be in 1080p, but that means a massive scale down for the smartphones. I know how to do that, just render everything on a 1080p rendertarget and then render it on the screen smaller. But what should I do so that the scalling down doesn't look bad and blury? I can't do it vector based or anything because the sprites simply need a specific size. Should I make the sprites power of two size to get some nice mipmapping? And which other settings can I do? Or should I rather go with a lower resolution but then having a little bit worse look PC version? The performance seems not to be a problem for me, so would be sad not using 1080p because of other problems.

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• Efficiently representing a dynamic transform hierarchy

  - by Mattia

  I'm looking for a way to represent a dynamic transform hierarchy (i.e. one where nodes can be inserted and removed arbitrarily) that's a bit more efficient than using a standard tree of pointers . I saw the answers to this question ( Efficient structure for representing a transform hierarchy. ), but as far as I can determine the tree-as-array approach only works for static hierarchies or dynamic ones where nodes have a fixed number of children (both deal-breakers for me). I'm probably wrong about that but could anyone point out how? If I'm not wrong are there other alternatives that work for dynamic hierarchies?

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• How To Initialize Object Which May Be Used In Catch Clause?

  - by Onorio Catenacci

  I've seen this sort of pattern in code before: //pseudo C# code var exInfo = null; //Line A try { var p = SomeProperty; //Line B exInfo = new ExceptionMessage("The property was " + p); //Line C } catch(Exception ex) { exInfo.SomeOtherProperty = SomeOtherValue; //Line D } Usually the code is structured in this fashion because exInfo has to be visible outside of the try clause. The problem is that if an exception occurs on Line B, then exInfo will be null at Line D. The issue arises when something happens on Line B that must occur before exInfo is constructed. But if I set exInfo to a new Object at line A then memory may get leaked at Line C (due to "new"-ing the object there). Is there a better pattern for handling this sort of code? Is there a name for this sort of initialization pattern? By the way I know I could check for exInfo == null before line D but that seems a bit clumsy and I'm looking for a better approach.

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• Correct order of tasks in each frame for a Physics simulation

  - by Johny

  I'm playing a bit around with 2D physics. I created now some physic blocks which should collide with each other. This works fine "mostly" but sometimes one of the blocks does not react to a collision and i think that's because of my order of tasks done in each frame. At the moment it looks something like this: function GameFrame(){ foreach physicObject do AddVelocityToPosition(); DoCollisionStuff(); // Only for this object not to forget! AddGravitationToVelocity(); end RedrawScene(); } Is this the correct order of tasks in each frame?

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• Configuring A Subdomain (cPanel) - www works, subdomain on it's own doesn't

  - by Matthew

  I've created a sub domain on my website using cPanel at test.mydomain.com, and this created a folder in my main 'www' directory called test. In this folder is a folder called cgi-bin, and it seems to redirect the page to say "It works!", but when I upload my own index.html file to the test directory it keeps showing http://test.mydomain.com/cgi-sys/defaultwebpage.cgi instead of the index file. If I go to www.test.mydomain.com then it works OK. How do I host my content at the sub domain? It's my first time setting one up so I'm a bit lost.

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• wacom bamboo connect CTL470 "no tablet detected..."

  - by LAS

  Wacom bamboo connect CTL470 - "no tablet detected ..." I downloaded and attempted to install drivers and software -- I am relatively new in ubuntu and downloaded, extracted,ran in terminal but could not successfully install drivers and software for this device. All of this took up a good deal of space on the drive. Manual compilation failed. I need some help. How do I install so as to use this device? Or please direct me to a suitable (relative beginner) "how to". i have downloaded several packages but the install fails in Software Center and Synaptic. System: HP a1220n Intel Pentium 4 CPU 2.93 GHz OS Type 32 bit Ubuntu 11.10

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• Wireless speed drops over time and doesn't get up if not reconnected

  - by Vili Lehto

  I am using Ubuntu 12.10 64bit and I have a Asus PCE-N15 wireless card(in PCI-E slot). The problem is that first when I connect to my WiFi network the speed is just fine, and actually my link speed never drops, it shows a solid 150mb/s+ link speed and good signal. But the download and upload speeds drop dramatically after couple minutes of use and I have to reconnect to fix this. Network is type IEEE 802.11bgn and uses WPA2/AES encryption. I don't have similar problems on the windows side, and the network is working fine on every other device. iwconfig shows this: wlan0 IEEE 802.11bgn ESSID:"WLAN-AP" Mode:Managed Frequency:2.412 GHz Access Point: 00:1E:AB:05:EF:31 Bit Rate=300 Mb/s Tx-Power=20 dBm Retry long limit:7 RTS thr=2347 B Fragment thr:off Encryption key:off Power Management:off Link Quality=61/70 Signal level=-49 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:2 Missed beacon:0 So the question is: Is there a way to fix this? Thanks in advance.

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• Building a chat-like functionality in iOS

  - by Mani BAtra

  I was planning to implement a functionality wherein a user can send data to a friend of his, similar to sending messages in WhatsApp. This is how I broke down the problem : The user registers for the app. This equates to user info being stored on a dedicated server. With the phone number as the key identifier. The user selects the friend to send a message to and pushes the data. The receiver polls the server regularly and acknowledges that the data has been received. I did a little bit of research and am thinking of implementing this using the XMPP Framework for iOS. Any pointers as to is this the correct implementation or some advice in general?

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• fix pavucontrol Alsa mixer with creative card

  - by schwiz

  I have been desperately trying to get my creative x-fi soundcard to work with my 10.10 install and I am almost there! I have 1 speaker working and when I open volume control I see that my device is Creative X-fi (Also mixer). However, it appears to be stuck on mono. When I open pavucontrol I get a message that says Connection failed: Connection refused and it exits. Before it closes I can see that playback is set to mono but it won't let me change before it closes. Can someone help me over this last hump? I am running 32 bit 10.10 any advice is much appreciated.

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• How to link subprograms to a main program's game loop?

  - by Jim

  I recently discovered Crobot which is (briefly) a game where each player codes a virtual robot in a pseudo-C language. Each robot is then put in an arena where it fights against other robots. A robots' source code has this shape : /* Beginning file robot.r */ main() { while (1) { /* Do whatever you want */ ... move(); ... fire(); } } /* End file robot.r */ You can see that : The code is totally independent from any library/include Some predefined functions are available (move, fire, etc…) The program has its own game loop, and consequently is not called every frame My question is roughly : how does it work ? It seems that each robot's code is compiled by the main program and then used in a way I cannot understand. I thought it could yields a thread for each robot, but I have not any proof of this and it seems a bit complicated to achieve it. Any idea how it could work, someone ?

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• Skeletal Animation - Automatically apply skeleton to model

  - by Randomman159

  Looking at websites such as mixamo.com or some game's development systems such as the animation editor for Overgrowth (http://www.youtube.com/watch?v=-RpqbC5-Z0E), i see that the skeleton in these situations is automatically being applied to the models. I really don't expect (though wouldn't mind) code that does this, but i really am looking for some sort of pointer in the direction, or how they go about this. If any of you have done this, or know how to, please do reply, i don't want to spend the next week trying to crack it, then another to actually code it :P Thanks all :) Just for a bit more information, i am in C# working with OpenTK with my own custom model loader, etc. but i can easily adjust any given code / concept to fit with mine :)

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• Just too bright

  - by Bunch

  Like a lot of folks I am using SSMS and VS pretty much all day. But staring at the text on the stark white background can be a bit much for my eyes after a while. I have seen quite a few different “themes” for these apps which change all the colors around to make it easier on your eyes. Some of them are pretty cool but all I really wanted was to dim the background a little not radically change the way everything looked. Since the stock colors for comments, breakpoints, keywords and the like are so familiar I wanted a background that did not interfere with those colors. So I picked the following custom color for the item background. It comes off as a parchment type color. Hue: 42        Red: 244 Sat: 123    Green: 245 Lum: 221    Blue: 224

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• Basic AI FSM - Handling state transition

  - by Galvanize

  I'm starting to study on how to implement game AI, and it seems to me that a very simple FSM for my Pong demo would be a nice way to start. My vision on implementing this would be to have a basic state interface and a class for each state, then the NPC would have an instance of the current state. The class should have an update method and directions on wich state to go next, depending on the event received. The question is: How do I handle this event? Should I have a regular addEventListener and a costum event system? Or should I check on update for the things that could change the current state? I'm feeling a bit lost, I feel I have a good grasp on the FSM concept but a good implementation seems tricky, thanks in advance.

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• URL structure for content that is updated daily

  - by Brendon

  A small, simple site I am working on displays a single page with the day's best offers on it. The user is able to move back and forth between previous days. Which of the following URL structures works best? Structure 1 /index.html -- today's best offers /2013-06-29.html -- yesterday's best offers, etc. Structure 2 /index.html -- 302 redirects to /2013-06-30.html (or whatever today is) /2013-06-30.html -- today's best offers /2013-06-29.html -- yesterday's best offers, etc. I quite like structure 2 from the user's point of view (they can share content easily), but I am a bit concerned about updating the redirect from /index.html every single day -- would this perhaps have unintended SEO consequences?

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• Rainbows and Unicorns at the Devoxx OTN Hack Fest

  - by Tori Wieldt

  At the OTN Hack Fest at Devoxx, several developers did their first "hello world" with the Internet of Things (IoT). They had fun and built basic applications with Java Embedded, Raspberry Pi and Leap Motion controllers. Experts Yara & Vinicius Senger and Geert Bevin provided the basics and support. Geert Bevin did a bit of hacking too. Check out this video to see what he came up with a short amount of time: &amp;amp;amp;amp;lt;span id=&amp;amp;amp;amp;quot;XinhaEditingPostion&amp;amp;amp;amp;quot;&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/span&amp;amp;amp;amp;gt; Learn more about Java Embedded at the Oracle Technology Network. 

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• SOA Suite 11g Developers Cookbook Published

  - by Antony Reynolds

  SOA Suite 11g Developers Cookbook Available Just realized that I failed to mention that Matt & mine’s most recent book, the SOA Suite 11g Developers Cookbook was published over Christmas last year! In some ways this was an easier book to write than the Developers Guide, the hard bit was deciding what recipes to include.  Once we had decided that the writing of the book was pretty straight forward. The book focuses on areas that we felt we had neglected in the Developers Guide, and so there is more about Java integration and OSB, both of which we see a lot of questions about when working with customers. Amazon has a couple of reviews. Table of Contents Chapter 1: Building an SOA Suite ClusterChapter 2: Using the Metadata Service to Share XML ArtifactsChapter 3: Working with TransactionsChapter 4: Mapping DataChapter 5: Composite Messaging PatternsChapter 6: OSB Messaging PatternsChapter 7: Integrating OSB with JSONChapter 8: Compressed File Adapter PatternsChapter 9: Integrating Java with SOA SuiteChapter 10: Securing Composites and Calling Secure Web ServicesChapter 11: Configuring the Identity ServiceChapter 12: Configuring OSB to Use Foreign JMS QueuesChapter 13: Monitoring and Management

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• Crashing trying to install Ubuntu 12.04 LTS

  - by Daniel Evans

  Hardware: Dell Inspiron 1545 Steps are as follows: 1. Insert 64 bit Ubuntu 12.04 disc 2. Boot computer Output is as follows: error: unexpectedly disconnected from boot status daemon Generating locales... en_US.UTF-8... done Generation complete. MEMORY-ERROR: glib-compile-schemas[569]: GSlice: assertion failed: aligned_memory == (gpointer) addr Aborted pwconv: failed to change the mode of /etc/passwd- to 0600 MEMORY-ERROR: [996]: GSlice: assertion failed: aligned_memory == (gpointer) addr MEMORY-ERROR: glib-compile-scehmas[1034]: GSlice: assertion failed: aligned_memory == gpointer) addr Aborted /usr/lib/python2.7/dist-packages/LanguageSelector/LocaleInfo.py:256: UserWarning: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory warnings.warn(msg.args[0].encode('UTF-8')) Using CD-ROM mount point /cdrom ... etc etc... End up at a prompt line ubuntu@ubuntu:~$

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• How do I install my Wacom Intuos 2 serial tablet?

  - by Gizmoatwork

  I've seen many topics on the subjects but they are too complicated for me. I'm not confident in compiling stuff. Is there some headache-free way to make it work under Ubuntu? Where do I start? Edit : It doesn't seem to work. looking at device '/devices/pnp0/00:08/tty/ttyS0': KERNEL=="ttyS0" SUBSYSTEM=="tty" DRIVER=="" looking at parent device '/devices/pnp0/00:08': KERNELS=="00:08" SUBSYSTEMS=="pnp" DRIVERS=="serial" ATTRS{id}=="PNP0501" looking at parent device '/devices/pnp0': KERNELS=="pnp0" SUBSYSTEMS=="" DRIVERS=="" ACTION=="add|change", SUBSYSTEMS=="pnp", ATTRS{id}=="PNP0501", ENV{ID_INPUT}="1", ENV{ID_INPUT_TABLET}="1" ATTRS{id}==PNP0501, : commande introuvable I am a bit confused. Am I right to type it in the terminal?

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• Using macro keys with razer blackwidow ultimate 2013

  - by user119020

  I recently bought a Razer blackwidow ultimate 2013 keyboard. The keyboad contains 5 macro keys and according to the manual, they can be quickly set using the key combination fn+f9. However, this doesn't work; it won't record any macros. All the other function buttons on the keyboard work fine (e.g. volume up, volume down, stand-by) Does anyone know how I can enable those keys? Maybe an extra package. I am using 64 bit ubuntu 12.04 Thanks in advance :)

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• Help migrating from VB style programming to OO programming [closed]

  - by Agent47DarkSoul

  Being a hobbyist Java developer, I quickly took on with OO programming and understood its advantages over procedural code from C, that I did in college. But I couldn't grasp VB event based code (weird, right?). Bottom-line is OOP came natural to me. Curently I work in a small development firm developing C# applications. My peers here are a bit attached to VB style programming. Most of the C# code written is VB6 event handling code in C#'s skin. I tried explaining to them OOP with its advantages but it wasn't clear to them, maybe because I have never been much of a VB programmer. So can anybody provide any resources: books, web articles on how to migrate from VB style to OO style programming ?

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• Five stars of open data - example and review

  - by Joe

  (there may be a more suited SE site for this question so feel free to shift) I have some data I'd like to make open to the public - It's synatesis of some related data retrived from freedom of infomation requests over the last year. The data itself is at http://www.cs.rhul.ac.uk/home/joseph/domesday/Domesday-Scotland.csv or for fans of Excel, at http://www.cs.rhul.ac.uk/home/joseph/domesday/Domesday-Scotland.xlsx . It's no more than a table with about five columns. I'd like to make this properly open data, so I was looking at the 5 star deployment scheme for Open Data. Much of which is fine but I'm confused towards the end and I could do with an explenation from people who know the answers. So to get achieve the star levels I need: "make your stuff available on the Web (whatever format) under an open license" trival - all I have to do is put the notes up on the page that will give the provance of the data. "make it available as structured data (e.g., Excel instead of image scan of a table)"… done… "use non-proprietary formats (e.g., CSV instead of Excel)" - done… "use URIs to identify things, so that people can point at your stuff" - this is where I start to get a bit hazy - does this mean there should be an URI for every line in the table? "link your data to other data to provide context" - this isn't massively clear to me - does this mean to give the provence of the data? One column of the data I've put out is a link to where the data came from - is that the sort of thing we're looking at? Any and all information and answers welcome… EDIT - or if anyone wants to recommend a place SE or other place to ask the question - that would be cool...

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• Does google use chrome to check if a link is used by humans or just there for the bots?

  - by sam

  Does clicking a link in chrome tell google the link is used by humans and there fore not just automated backlink spam. It sounds weird but i read it today on a slightly obscure seo blog, they mensionned clicking the backlinks they make in a version of chrome where they have the "send data annonmusly to google" feature turned on. It sounded a bit far fetched but then i thought it could have a truth to it as with google now looking harder at "spammy" links it would mean at least some humans are using them. Has any one else heard anything else about this ?

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• How to Change the Window Border Size in Windows 8

  - by Chris Hoffman

  The window borders on Windows 8’s desktop are fairly thick by default, but they don’t have to be – you can customize the side of the window borders with an easy-to-use application or a quick registry tweak. You can shrink the window borders and make them fairly thin, just as they were on previous versions of Windows. Or you can increase the window border size and make them extremely thick, if you prefer.. HTG Explains: Does Your Android Phone Need an Antivirus? How To Use USB Drives With the Nexus 7 and Other Android Devices Why Does 64-Bit Windows Need a Separate “Program Files (x86)” Folder?

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• [OT] : Tagged : SQL Dream Cars

  - by AaronBertrand

  Steve Jones ( blog | twitter ) posted an entry today called "SQL Dream Cars," where he talks briefly about 5 of the cars he would love to own. He then tagged a few of us to share our lists. Before I get to mine, I wanted to reflect a bit on one of Steve's choices, the Ferrari 308 GTS. I remember when I was a kid, maybe 10 or 11 years old - after Magnum PI made that Ferrari 308 so popular - that a local doctor in North Bay had one. His name was Dr. Fazzarri (and I apologize if I've spelled that wrong);...(read more)

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• Copy UNC network path (not drive letter) for paths on mapped drives from Windows Explorer

  - by Ernest Mueller

  I frequently want to share network paths to files with other folks on my team via email or chat. We have a lot of mapped drives here, both ones we set up ourselves and ones set up by our IT overlords. What I'd like to be able to do is to copy the full real path (not the drive letter) from Windows Explorer to send to folks. Example: I have a file in my "Q:" drive, \cartman\users\emueller, I want to send a link to file foo.doc to everyone. When I copy the file path (shift+right click, "copy as path") it gets the file name "Q:\foo.doc". This is unhelpful to others, who would like to see \cartman\users\emueller\foo.doc, obviously. In Explorer it clearly knows it - in the address bar I see "Computer - emueller (\cartman\users) (Q:) -". Is there a way to say "hey man copy that path as text with the \cartman\users\emueller not the Q: in it?" I know I could just set up mapped network locations instead of the mapped drives for the ones that I set up personally and avoid this problem, but most of the mapped drives like the "users" share come from our IT policy. I could just make a separate network location and then ignore my Q: drive but that's inconvenient (and they do it so they can move accounts across servers). Sure my emailed path might eventually break because I'm losing the drive letter indirection but that's OK with me.

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