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• The annoyed configuration of java-6-openjdk

  - by kit.yang

  I want to change the java environment to java-6-openjdk. /etc/environment: PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" JAVA_HOME=/usr/lib/jvm/java-6-openjdk/ CLASSPATH=.:$CLASSPATH:$JAVA_HOME/lib java -version: java version "1.6.0_20" OpenJDK Runtime Environment (IcedTea6 1.9.5) (6b20-1.9.5-0ubuntu1~10.04.1) OpenJDK 64-Bit Server VM (build 19.0-b09, mixed mode) javac -version:javac 1.6.0_20 But in the shell: the echo $JAVA_HOME result is /usr/lib/jvm/java-6-sun-1.6.0.22 while the $CLASSPATH is /usr/lib/jvm/java-6-sun-1.6.0.22/lib. How to find the other files in which $JAVA_HOME & $CLASSPATH value is setted by the java-6-sun-1.6.0.22 location?

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• What options do I have for game hosting.

  - by Jonathan Kaufman

  DISCLAIMER: I know this question starts to leave development island but it is very game development related and still think this is the best place. I see many free MMOs/online desktop client games out there. I am baffled at the ability to fund such. I don't mind hosting myself but would at least like to have someone host a matchmaking service. If these indie devs really are pouring money down the server drain then I'm screwed but if some one can "learn me" :) some alternatives I would greatly appreciate it.

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• Simple 2d game pathfinding

  - by Kooi Nam Ng

  So I was trying to implement a simple pathfinding on iOS and but the outcome seems less satisfactory than what I intended to achieve.The thing is units in games like Warcraft and Red Alert move in all direction whereas units in my case only move in at most 8 directions as these 8 directions direct to the next available node.What should I do in order to achieve the result as stated above?Shrink the tile size? The screenshot intended for illustration. Those rocks are the obstacles whereas the both ends of the green path are the starting and end of the path.The red line is the path that I want to achieve. http://i.stack.imgur.com/lr19c.jpg

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• How to organize timeline in a Flash project?

  - by miguelSantirso

  Hi, I am starting a new Flash game and I was wondering if there is a better way to organize the timeline of the project. In my previous games I define a keyframe for each possible status of the game (loading, sponsor, intro, menu, gameplay, etc...). This method works but has some problems... For instance, it is not easy to implement transitions between the different screens in the game. How do you do this? Do you know of some better way?

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• How to manage two video cards on a laptop that runs Ubuntu 10.10?

  - by Marc-François Cochaux-Laberge

  I have a laptop with two video cards. One ATI and on integrated Intel. On Windows, I can choose which video card I want to use. For example, I use the Intel card for normal use and for gaming, I switch to my ATI card for better performance, but a shorter battery life. In Ubuntu 10.10, only the Intel driver is installed, the ATI driver for my card doesn't work at all and there's heat coming out of my computer all the time, like when I'm playing video games on Windows. I think both cards are active, but only the Intel one is usefull. How can I solve this by making sure Ubuntu is aware of the two video cards and by disabling my ATI. Or may be I am all wrong about this?

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• RTS game diplomacy heuristics

  - by kd304

  I'm reimplementing an old 4X space-rts game which has diplomacy options. The original was based on a relation scoring system (0..100) and a set of negotiation options (improve relations, alliance, declare war, etc.) The AI player usually had 3 options: yes, maybe and no; each adding or removing some amount to the relation score. How should the AI chose between the options? How does the diplomacy work in other games and how are they imlemented? Any good books/articles on the subject? (Googling the term diplomacy yields the game Diplomacy, which is unhelpful.)

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• What are the benefits of designing a KeyBinding relay?

  - by Adam Naylor

  The input system of Quake3 is handled using a Keybinding relay, whereby each keypress is matched against a 'binding' which is then passed to the CLI along with a time stamp of when the keypress (or release) occurred. I just wanted to get an idea from developers what they considered to be the key benefits of designing your input system around this approach? One thing i don't particularly like is the appending of the timestamp to the bound command. This seems like a bit of a hack to bend the CLI into handling the games input? Also I feel that detecting the keypress only to add the command to a stream of text that gets parsed at a later date to be a slightly latent way of responding to input? (or is this unfounded?) The only real benefit i can see is that it allows you to bind 'complex' commands to keypresses; like 'switch weapon;+fire;' for example. Or maybe for journaling purposes? Thanks for any insights!

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• What's the future of online gamedev. FLASH or UNITY?

  - by Cpucpu

  Currently, i develop for flash, not much ago i discovered unity, not yet played with it, but i have seen so far was cool. Here are my thoughts: Flash is more casual, start with cost less, in time and money. In unity you'd likely have to go more bussines-serious (real money). There are proven bussines models in flash, like adver-gaming, ads, micro-transactions. Have not seen much movement in this in Unity, too soon maybe. Flash is too heavy. By its nature(making games) Unity is way faster. Flash is 2d, doing something 3d with it turns weird and slow. Unity is natively 3d, not optimized for 2d though, it is likely feasible as well. I am overlooking the plug-in widespread, that gap will get closed over the time.

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• How and where do you store your private work/sourcecode?

  - by Amir Rezaei

  I have worked as a developer for over 10 years now. During that time I have had my own small projects where I have developed tools, applications and games. I have not found any robust solution to store my work. It’s always fun to get back to your code and see how you did before and how you would do it now. It’s just work that is unfortunate to lose. There are SVN solution such as Google’s Project Hosting. However I’m not interested in sharing my code or making it open source. Currently I’m hosting my own SVN server. So here comes my question: How and where do you store your private work/sourcecode? Requirements: Sourcecode versioning Backup Prefers free Edit: Remote access Edit: I have used Dropbox + TrueCrypt + SVN. Unfortunately you are limited to 5gb.

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• Procedural world generation oriented on gameplay features

  - by Richard Fabian

  In large procedural landscape games, the land seems dull, but that's probably because the real world is largely dull, with only limited places where the scenery is dramatic or tactical. Looking at world generation from this point of view, a landscape generator for a game needs to not follow the rules of landscaping, but instead some rules married to the expectations of the gamer. For example, there could be a choke point / route generator that creates hills ravines, rivers and mountains between cities, rather than cities plotted on the land based on the resources or conditions generated by the mountains and rainfall patterns. Is there any existing work being done like this? Start with cities or population centres and then add in terrain afterwards?

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• 2D Pixel/sprite game in unity? [on hold]

  - by acidzombie24

  Hi I'm an absolute newbie in unity. In the past I was told unity is terrible for 2d games so I look away after looking at it for a few days. I don't remember if this was right before unity4 came out or after. I hear unity is fairly good at 2d now. I tried googling for tutorials but I'm doing it wrong. I could not find a good tetris or tic tac toe tutorial. What assets/tutorials do I want for a 2D game? Side question is what tutorials are good if I want to make a fire emblem/advance wars type game (HUD heavy grid base game)

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• Ubuntu stuck in low resolution after UNinstalling / disabling NVidia drivers

  - by Han Cnx

  Tried the Nvidia driver, installed using the Additional Drivers panel. Didn't like it much; the CPU seemed to overheat more and the brightness controls stopped working. Also selecting a second display is a pain using that horrible NVidia settings thing. So wanted to disabled it again.. problem is, UBuntu is then stuck in either 640x480 or 800x600 (second time I tried to install it back and then remove again). How can I get this back the way it was? The original Ubuntu drivers worked just fine, allowing me to run Unity and games properly. I tried a xserver-xorg reconfigure but this didn't do anything. (No xorg.conf file either). This is on a Lenovo Thinkpad T410i

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• Cyclic Dependencies.

  - by PhilCK

  Are cyclic dependencies a common thing in games dev? I ask as I keep getting into situation where I'm using and have been told more than once that they should be avoided. I am wondering if this is just a what people say as a general rule of thumb in the software development business. and that the nature of game programming produces such dependencies. // Foo #include <Bar.hpp> class Foo { bar& m_bar; }; and // Bar class Foo; class Bar { Foo* m_foo; }; I do this alot in Ruby, but dynamic languages are more forgiving in this instance, where as static ones, not so much.

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• What algorithm can I use to detect simple shapes in a 4x4 matrix?

  - by ion

  I'm working on a simple multiplayer game that receives a random 4x4 matrix from a server and extracts a shape from it. For example: XXOO OXOO XXOX XXOO XOOX and XOOO XXXX OXXX So in the first matrix the shape I want to parse is: oo o oo and the 2nd: oo oo ooo I know there must be an algorithm for this because I saw this kind of behavior on some puzzle games but I have no idea how to go about to detecting them or even where to start. So my question is: How do I detect what shape is in the matrix and how do I differentiate between multiple colors? (it doesn't come only in X and O, it comes in a maximum of 4). Additionally, the shape must be a minimum of 4 blocks.

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• Using raw vertex information for sprites rather than SpriteBatch in XNA

  - by The Communist Duck

  I have been wondering whether using SpriteBatch is the best option. Obviously for prototyping or small games it works well. However, I've been wanting to apply techniques such as shaders and lighting to my game. I know you can use shaders to some extent with SpriteSortMode.Immediate, but I'm not sure if you lose power using that. The other major thing is that you cannot store your vertex data in the graphics memory with buffers. In summary, is there an advantage of using VertexTextureNormal (or whatever they're called) structs for vertex data for 2D sprites, or should I stick with SpriteBatch, provided I wish to use shaders?

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• Migration from XNA to SharpDX

  - by Wouter

  My fear is that XNA has reached the end of the road. To keep up with the latest technology a shift to another game framework might be needed. We have many games in a large codebase, all based on XNA. My question is, how much work would it be to migrate to SharpDX and are there other possibilities? Our code base mainly uses basic 3D rendering and the SpriteBatch, no fancy shader stuff. Update: I should have mentioned we only use 2.5D, we have a simple engine that builds textured quads to render text and animated sprites. Also for sound we use XACT (what else..) with some effects.

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• What are the advantages and challenges of using HaXe over ActionScript 3?

  - by Arthur Wulf White

  I read this: http://webr3.org/blog/haxe/bitmapdata-vectors-bytearrays-and-optimization/ And this: http://stackoverflow.com/questions/5220045/what-are-the-pro-and-cons-of-using-haxe-over-actionscript-3 http://www.haxenme.org/developers/documentation/actionscript-developers/ I read there are only two books, is that right? http://haxe.org/doc/book I also see that using FlashDevelop you can make an Adobe Air project with HaXe and compile to exe. And begun to wonder from a game making perspective: I saw the example in the first link, are there any additional advantages in performance when using HaXe instead of AS3 for games development (for the web)?

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• Supertuxkart not able to start

  - by subeh.sharma

  Was working fine before i played around with NVIDIA drivers and ended up with this problem. I tried running it through the terminal and i see these messages: subsharm@subsharm-ThinkPad-T61:~$ supertuxkart Irrlicht Engine version 1.7.2 Linux 3.0.0-15-generic #25-Ubuntu SMP Mon Jan 2 17:44:42 UTC 2012 x86_64 [FileManager] Data files will be fetched from: '/usr/share/games/supertuxkart/' [IrrDriver] Creating NULL device Irrlicht Engine version 1.7.2 Linux 3.0.0-15-generic #25-Ubuntu SMP Mon Jan 2 17:44:42 UTC 2012 x86_64 [IrrDriver] Trying OpenGL rendering. [IrrDriver] Tring to create device with 32 bits Xlib: extension "GLX" missing on display ":0.0". [IrrDriver Temp Logger] Level 1: No GLX support available. OpenGL driver will not work. [IrrDriver Temp Logger] Level 2: Fatal error, could not get visual. Segmentation fault subsharm@subsharm-ThinkPad-T61:~$ sudo Xorg -configure [sudo] password for subsharm: Fatal server error: Server is already active for display 0 If this server is no longer running, remove /tmp/.X0-lock and start again.

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• cocos2d-x - object creation and management in game design

  - by Jason

  How do others keep track of everything going on in their games? I am working on a new game and I am quickly realizing everything that I need to keep track of. Example: Maybe a layerManager that keeps track of all the layers and what is happening for a particular scene. Maybe a sceneManager for sharing objects among scenes But then getting to game play itself, what if you have 100 objects on the screen each with its own state and happenings, there needs tobe a way to keep track of all of that. Drawing everything out is really helping me. Can anyone share with me how they go about object tracking/management? I am seeing a few different managers and then maybe even a parent object that manages the managers..is my thinking way off? Any design patterns that may be useful for me to read about? Update: doing some reading and maybe a Factory pattern might apply.

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• Game programming in C++ [closed]

  - by Asaf

  I am a new programmer. I know C++ quite well and I know C# very good. I'm really eager to learn how to program games well and I cant really find where to start learning from. I have never developed any graphics in C++ , only a crappy game with windows forms graphics. I'm really into game programming and hoping I can get employed in it in the future. I'd be glad to have some advice about this. Thanks in advance, Asaf

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• How can I get six Xbox controllers to provide input to an HTML5 game?

  - by Daniel X Moore

  I'm creating a six player HTML 5 game designed to be played locally (Red Ice). I've previous set up handling 7 Wiimotes using something along the lines of Joy2Key to map each input for each player to a separate keyboard key, but Wiimotes are pretty hard on the hands for these types of games and not very ergonomic so I thought I'd try and get Xbox controller support. I don't believe that any simple key mapping solution will work due to the nature of the directional stick. My inclination is that this will require a browser plugin and if so I'd prefer to write the plugin for Google Chrome. How do I create a Chrome browser plugin to handle multiple Xbox controllers or is there some other way? Please do not answer this question saying it can't be done, because it absolutely can. EDIT: I don't believe any keymapping/mouse simulating solution will work unless it can reliably distinguish six axis of inputs, one per player.

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• 3D engine for an online city/country simulation game (SimCity, Civilization)

  - by Dmitri

  I want to create a browser game, in which the user can control the development of a certain region (like SimCity or Civilization). One part of the task is rendering of the virtual world in a browser (3D or pseudo-3D). The rendering engine should a) work in a browser and b) ideally - be compatible with mobile devices (i. e. the representation of the virtual world should be visible both on desktop computer and mobile devices with the same codebase). Question: Which rendering engines (for SimCity-style games) fulfill aforementioned requirements (open and closed source) ?

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• Health problem of a programmer

  - by gunbuster363

  Hi all, I've been annoyed by this fingers ache for quite a long time, my fingers ache because of too much mouse clicking during office hour plus play games after work. I forget game for a while and my fingers are getting better, but still my right pointing finger would feel pressure when I click the mouse. I haven't go to a doctor because I afraid the fee would be high and he would just suggest me too get rest for the fingers, also, I don't know what kind of doctor should I go and see. My fingers get less pressure if I use my expensive deathadder ( what a shame, I bought this for gaming, but now I use it for rest ) at home because its buttons are softer, however I cannot have such expensive mouse at my office because I am afraid people would steal it. I use some trick when I am using the mouse such as single-click open a file, adding more shortcuts at desktop for common jobs, do you guys have some other tips for me? Thank you.

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• Board Game Design in Cocos2d

  - by object2.0

  Hi folks i am going to start a chess like board game. and for that i have reviewed a number to things available. one is http://www.mapeditor.org/ , using which you can create a grid base games. another option is geekgameboard for iphone available at http://mooseyard.lighthouseapp.com/projects/23201-geekgameboard now i want your expert opinion that would it be better to make a game in cocos2d using the first option or the second option? both looks promising to me and give good control over board design. ps: sorry for duplicates, i found about the http://gamedev.stackexchange.com/ lately after posting it on stackexchange. so i am just posting it here again as i feel its more relevant board.

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• What version of Java should I target for applets?

  - by Christopher Horenstein

  I recently deployed an applet that seems to require Java 6 Update 24. I assume the reason for this requirement is the matching JDK version I used to create the applet (I am new to Java). The fact that my applet requires a Java download/update for users who already have some version of Java installed is a big concern for me; the applets I'm creating slip into a web comic, so it's very disruptive. Having used the most recent version of Java, it seems as though I am able to assume that most of the readers I get will have to update Java to continue reading/playing. Is there a best practice concerning which version of Java to use to make the process of using an applet easy for end-users? Any reading material on this would be very helpful. Should I be using an older version of Java if I don't require new features? I am using Slick for 2D games.

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