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• Collisions on complex map 2D

  - by waxx

  I'm currently thinking about collision and map system that I want to use in my next game and I'm kind of puzzled. Maps are going to be somewhat complex with lots of irregularities and thus tiling is out of question. I thought about an editor where you'd draw rectangles on the map that would represent areas that are collidable with and then saving such "collision map" with only black/white gfx. Or maybe should I save exact rectangles data with their x/y/width/height into some text file and go from there? What would you recommend? Thanks.

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• June 14th Webcast: Using Personalization in Oracle eAM

  - by Oracle_EBS

  ADVISOR WEBCAST: Using Personalization in Oracle eAMPRODUCT FAMILY: Enterprise Asset Management June 14, 2012 at 11 am ET, 9 am MT, 8 am PT Personalization is the ability within an E-Business Suite instance to make changes to the look and behavior of OA Framework-based pages without programming (and, therefore, upgradeable!).TOPICS WILL INCLUDE: Oracle eAM customers have leveraged Personalization to address many of the following use cases: making a non-mandatory field mandatory on a Work Order adding a new field to the header region entering the specifications for a new field disabling a field to prevent user entry adding Asset Description to Create Work Request Page viewing Asset Hierarchy in Create Work Request Page setting Auto Request Material Flag to yes by default A short, live demonstration (only if applicable) and question and answer period will be included. Oracle Advisor Webcasts are dedicated to building your awareness around our products and services. This session does not replace offerings from Oracle Global Support Services. Current Schedule can be found on Note 740966.1 Post Presentation Recordings can be found on Note 740964.1

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• screen blacks out after pressing a key on keyboard, specially enter key

  - by ahmad598

  I have natty, and i have installed kubuntu-desktop package. before installing it, everything was fine but after that, this thing happens: when I'm typing, after stroking a key, screen blacks out, fan speeds up, and i have to turn off machine by pressing power button. it just happens in many different apps (chromium, hotot, kde proxy settings, ...) and in every environment: unity, kde, gnome 2. i don't know what details i must provide with this question, and i don't like to remove my kde desktop, or re-install my ubuntu. any ideas are appreciated ;-)

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• What do you do when the code isn't complicated enough?

  - by Chris

  After six months of development on a project, our stakeholders have had a "gut check" and have decided that the path that we've been walking (a custom designed application framework and data access layer) is holding us (the developers) back from quickly developing the features they would like to see. After several days of debate management and the development team have decided to scrap the current incarnation and start over using ASP.net MVC, with Entity Framework as the bases of the a 'quick and dirty', lets just get it done project. In days following, our senior developer who has never worked with MVC or Entity Framework has finally gotten into a sample project and done some work. His take on ASP.net MVC, "this is not software engineering". So my question is this; what do you do, when one doesn't think the code is complicated enough?

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• When calculating how many days between 2 dates, should you include both dates in the count, or neither, or 1?

  - by Andy

  I hope this question is alright to ask here. I am trying to make an algorithm that counts how many days between 2 dates. For example, 3/1/2012 and 3/2/2012. Whats the correct answer, or the most popular choice, and should be the one I use? So in this case, if I don't include both dates I am comparing, its 0. If I include one of them (both the start date), its 1. Lastly, if I include both, its 2. Thanks.

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• Gnome-classic, new windows remain buried behind other window

  - by Naten Baptista

  This is my first question on this forum. I have recently moved from ARCH Linux to Ubuntu 11.10. I switched to using Gnome-Classic and noticed strange behaviors with the windows whenever I open them. I have setup Launchers on the Panel to launch Dolphin, Terminal and Chrome Browser. Whenever I launch any of these I notice that they open behind the current window that is in-focus instead of coming up in front. According to me any sane windows manager would by default bring up the new window in front and focus, I mean why would you want to open a window hidden behind all other window??? Is there any thing or configuration that I need to check as this problem is driving me nutts . Thanks in advance

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• Un million d'identifiants uniques d'appareils Apple dans la nature, piratés d'un laptop du FBI par un groupe de hackers

  Un million d'identifiants uniques d'appareils Apple dans la nature Piratés d'un laptop du FBI par un groupe de hackers La rumeur circulait déjà, mais des données postées sur le service Pastebin viennent la confirmer. Un million d'identifiants uniques (UDIDs) d'appareils iOS (iPhone, iPad, iPod) sont dans la nature. [IMG]http://idelways.developpez.com/news/images/FBI-Apple-security-breach.jpg[/IMG] L'acte a été prémédité par un groupe de hackers nommé Antisec. Le fichier de la liste en question comporte plus de 12 millions d'enregistrements de dispositifs, incluant des UDIDs Apple, des noms d'utilisateurs, des jetons de notifications push, et dans certains...

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• Given two sets of DNA, what does it take to computationally "grow" that person from a fertilised egg and see what they become? [closed]

  - by Nicholas Hill

  My question is essentially entirely in the title, but let me add some points to prevent some "why on earth would you want to do that" sort of answers: This is more of a mind experiment than an attempt to implement real software. For fun. Don't worry about computational speed or the number of available memory bytes. Computers get faster and better all of the time. Imagine we have two data files: Mother.dna and Father.dna. What else would be required? (Bonus point for someone who tells me approx how many GB each file will be, and if the size of the files are exactly the same number of bytes for everyone alive on Earth!) There would ideally need to be a way to see what the egg becomes as it becomes a human adult. If you fancy, feel free to outline the design. I am initially thinking that there'd need to be some sort of volumetric voxel-based 3D environment for simulation purposes.

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• Override a static library's global function

  - by Jason Madux

  Not sure if this question belongs here or on SO, but posting here for now :) I'm trying to override a global function defined in "StaticLib" for my iOS application but the compiler keeps giving me the duplicate symbol error. Relevant code: #import "MyApplication.h" #import "StaticLib.h" NSData* getAllData() { NSLog(@"myGetAllData"); return nil; } @implementation MyApplication ... @end I've looked into Apple's runtime library but that all seems to be class-oriented. Any suggestions or is it just not possible to override global functions from static libraries?

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• HTML5 - check if font has loaded

  - by espais

  At present I load my font for my game in with @font-face For instance: @font-face { font-family: 'Orbitron'; src: url('res/orbitron-medium.ttf'); } and then reference it throughout my JS implementation as such: ctx.font = "12pt Orbitron"; where ctx is my 2d context from the canvas. However, I notice a certain lag time while the font is downloaded to the user. Is there a way I can use a default font until it is loaded in? Edit - I'll expand the question, because I hadn't taken the first comment into account. What would the proper method of handling this be in the case that a user has disabled custom fonts?

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• 404 code/header for search engines, on removed user content?

  - by mowgli

  I just got an email, from a former user on my website He was complaining that Google still shows the contact page he created on my site, even though he deleted it a month ago This is the first time in many years anyone requests this I told him, that it's almost entirely up to Google what content it wants to keep/show and for how long. If it's deleted on the site, I can't do much, other than request a re-visit from the googlebot The user-page already now says something like "Not found. The user has removed the content" TL;DR: But the question is: Should I generally add a 404 header (or other) for dynamic user content that has been removed from the site? Or could this hurt the site (SEO)?

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• Character coding / programming

  - by Jery

  Lately I tryed a few times to create characters for some games, but at some certain point (especially when collision detection came in) everything became messy and the interaction between chars, the world and certain items had a lot of bugs. So here is my question, how do you ussualy keep track of actions that your character is allowed to do, or more in general do you have some links / advices how to set up a char efficiantly? I´m working on a char right now, who should at least be able to run, jump, pick items up and use different fighting animations. Most ideas I came up with until now use some kind of action.priority / action.duration system to determain whats possible and what not, or a "action-manager" which defines for every action what is possible from that action on but it all doesnt work that well together.

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• What are the differences between Bigloo and ECL from an embedding standpoint? [migrated]

  - by Pubby

  I've been looking to embed Lisp in some C++ code. Two options I'm interested in is Bigloo Scheme and ECL (Common Lisp). Reading through the docs they seem to support a very similar feature set. Obviously Bigloo is Scheme and ECL is CLisp, but what other differences do they have? In particular I'm interested in the following criteria: Ease of embedding (for C++, not just C). I don't want to write a bunch of boilerplate. Performance. Bigloo is performance based and has many compiler optimization options, although I can't find anything comparable for ECL. Style of coding. This one is more for Bigloo - is it more functional than ECL? I'm targeting this question towards someone who has used both.

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• Prediction happening on (sending) client side

  - by Daniel

  This seems like a simple enough concept, but I haven't seen this implemented anywhere yet. Assuming that the server just forwards and verifies data... I'm using mouse-based movement, so it's not too difficult to predict the location of the player 150ms from when the event is sent. I'm thinking it is more accurate than using old data and older data on the receiving clients' side. The question I have, is why can I not find any examples of this? Is there something fundamentally wrong with this that I cannot find anyone implementing or talking about implementing this.

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• Performance impact of not implementing relationships at the database level?

  - by JVerstry

  Let's imagine a data model with customers and invoices. There is a 1 to n relationship between a customer and its invoices. We uses an ORM (like Hibernate). One can explicitely implement the 1-n relationship (using JPA for example) or not. If not, then one must do a bit more work to fetch invoices. However, it is much easier to maintain, improve and develop the data model of applications where relationships between objects are not explicitely implemented in the database. My question is, has anyone noticed a significant performance impact when not implementing the relationships in the database?

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• Software Architecture

  - by Roger

  I have a question about Software Architecture, anyone can help me or give me some hints currently, I have a J2EE project which deploys in a server, I should a Java Standard project(J2SE) should run 24 hours x 7 days to monitor something it could not run separately, because the Java Project shared the some same classes such as Java Bean classes with the J2EE project maybe my design is not correct, can anyone suggest me what should I do? Using SOA? is this correct? my current solution is run this java project using a bash, but I dont think it is then best idea. I list my class packages com.company.alteck com.company.altronics com.company.gamming com.company.jaycar com.company.jup com.company.rpg com.company.sansai com.company.wiretech com.company.yatsal com.ebay.api com.ebay.bean com.ebay.credential com.ozsstock.finals com.ozstock.adapter com.ozstock.aspectj com.ozstock.model com.ozstock.persistence com.ozstock.service com.ozstock.suppliers my structure likes this, all the packages contains "company" should run separately, but depends on the model bean class. can anyone give me some hints to redesign?

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• Google analytics not provided for 55% of total traffic

  - by Neolisk

  I've been here and here to learn what (not provided) means. Now the question is if what I am seeing in my Google Analytics stats for my website is considered normal (and whether I can/should do anything about it). Here are the statistics from one day, but other days are similar: 102 visits, 57 is from (not provided), that's over 55% of unknown keywords. Is it normal to have it like that? Does google plan to do anything about it? In other words, what's the perspective? In my understanding, with this approach, as people switch to https, Analytics will stop being useful. Please correct me if I am wrong in my assumptions.

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• If you should only have one assertion per test; how to test multiple inputs?

  - by speg

  I'm trying to build up some test cases, and have read that you should try and limit the number of assertions per test case. So my question is, what is the best way to go about testing a function w/ multiple inputs. For example, I have a function that parses a string from the user and returns the number of minutes. The string can be in the form "5w6h2d1m", where w, h, d, m correspond to the number of weeks, hours, days, and minutes. If I wanted to follow the '1 assertion per test rule' I'd have to make multiple tests for each variation of input? That seems silly so instead I just have something like: self.assertEqual(parse_date('5m'), 5) self.assertEqual(parse_date('5h'), 300) self.assertEqual(parse_date('5d') ,7200) self.assertEqual(parse_date('1d4h20m'), 1700) In the one test case. Is there a better way?

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• In a multiplayer game, should I store the list of character names on the Player class?

  - by Gökhan Nas

  I am writing a multiplayer game that has account system and character creation system like standart MMORPGs. I have a question about name creating issue. I think that I can create a static variable on Player class that keeps created player names but it confused me. It will tell me name is valid or unvalid depends on the other players has this name. Questions; Does implementation does make sense ? If i have 1000 players, is it means it consumes 1000 times of memory of this list? Or it just consume as like there is one? What is your suggestion for place that I can keep player name list? A new class?

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• DHCP won't start / subnetting

  - by user114371

  I recently changed the IP address on an Ubuntu 12.04 server I have in my lab, which is running isc-dhcp-server. After doing so and modifying the dhcpd.conf file, my dhcp service would not start. I basically used the same configuration, except I modified everything to use /25 scopes rather than /24. When I try to start / restart the service, I see the following: MY@ubuntuserver:~$ sudo service isc-dhcp-server restart stop: Unknown instance: isc-dhcp-server start/running, process 20918 It looks like it starts, but it isn't actually running and Webmin states that the DHCP service is not running. So my question is, does isc-dhcp-server support subnetting (CIDR) style scopes, or must they be class A / B / C scopes (doesn't seem likely)? I've double checked the interface reference (this is a VM with only one defined eth0 interface) and everything else I can thing of.

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• How to open the terminal? (Mis-configured the profile)

  - by JiminP

  I am quite new to Ubuntu. (I started to use Ubuntu about a year ago, but I don't know how to use things like terminal well. All I used by console was easy things like ls or cd, to use gcc.) Today, I found 'profile' property of the terminal, and I created a new profile. Then, I changed some properties like font color and opacity. Soon, I found something like 'command', and for test, I set that to ls. I closed and re-opened the terminal. However, the terminal terminates right after it appeared. I soon remembered that there was option like 'close right after the command is executed'. Therefore, I can't use Gnome Terminal D: ... I found Konsole at Ubuntu software center, but that's just not my style (especially cursor, its position is little weird...). Question : How to change the profile of Gnome Terminal, without opening it?

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• How to change the state of a singleton in runtime

  - by user34401

  Consider I am going to write a simple file based logger AppLogger to be used in my apps, ideally it should be a singleton so I can call it via public class AppLogger { public static String file = ".."; public void logToFile() { // Write to file } public static log(String s) { AppLogger.getInstance().logToFile(s); } } And to use it AppLogger::log("This is a log statement"); The problem is, what is the best time I should provide the value of file since it is a just a singleton? Or how to refactor the above code (or skip using singleton) so I can customize the log file path? (Assume I don't need to write to multiple at the same time) p.s. I know I can use library e.g. log4j, but consider it is just a design question, how to refactor the code above?

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• Representing timezone list

  - by StasM

  I have a web application that allows the user to choose the timezone from the list. The list is very long (pretty much all CLDR-supported timezones). So the question is - how should I represent it? How should it be sorted - alphabetically or by timezone offset? What information should each item contain - offset, location, long name (like Europe/Zurich) or short name (like CET)? Should I display information about DST or only current offset? Let's say I can't right now do something like fancy maps OS configuration dialogs display, so the list is the only option. However I want to make the list look nice. Any best practices how it's done?

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• How to completely uninstall LXDE (12.04)?

  - by Jeremy Lunsford

  I'm trying to remove LXDE from my 12.04 system. I've tried running the following commands (as root from a terminal): apt-get remove lxde apt-get purge lxde apt-get autoremove I've also tried a rather lengthy command that was linked to from another question. However, when I log in, LXDE is still presented as an environment choice, and it still functions perfectly well, as if I've done nothing. I ran the above commands again, but got the following message: package . . . is not installed, so not removed. So, where do I go from here, short of re-installing Ubuntu and all my programs?

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• Polygon count budget

  - by Lautaro

  Is there any smart way to think about polygon budget relating to PC gaming today? My game will have one static 3d background scene and two fighters. No more enemies. I am thinking about having animated 3d models in the background for atmosphere, like spectators. So how could i find out what the polygon count for the player models and background scenarios could be. I guess the question is, what is a for today typical polygon count that most PCs can handle?

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