Search Results

Search found 4944 results on 198 pages for 'acts as tree'.

Page 90/198 | < Previous Page | 86 87 88 89 90 91 92 93 94 95 96 97  | Next Page >

• To canvas, or not to canvas, when building browser-based games?

  - by Letharion

  Background: I have extensive development background, but the last time I coded a game was many years ago. My Javascript skills are quite limited, and I intend to improve them by building a simple game — Tetris, Pac-man, or something of that complexity level. Question: It seems to me that a fundamental choice I need to make is whether I should render on a <canvas> element or not. With a canvas, I have basic tools for rendering points, lines, and more complex things on top of that. Presumably there are, or will be, also various frameworks to help with this. Without a canvas, I could keep my objects in the DOM-tree, like a regular webpage, only quite complex, with many overlapping elements. Is one approach better than the other? Are they mutually exclusive? How do I know which to pick?

  Read the article

• Is there an apt command to download a deb file to the current directory?

  - by Lekensteyn

  I am often interested in the installation triggers (postinst, postrm) or certain parts (/usr/share or /etc) of packages. Currently, I am running the next command to retrieve the source code: apt-get source [package-name] The downside is, this file is often much bigger than the binary package and does not reflect the installation tree. Right now, I am downloading the packages through http://packages.ubuntu.com/: Search for [package-name] Select the package Click on amd64/i386 for download Download the actual file This takes too long for me and as someone who really likes the shell, I would like to do something like the next (imaginary) command: apt-get get-deb-file [package-name] I could not find something like this in the apt-get manual page. The most close I found was the --download-only switch, but this puts the package in /var/cache/apt/archives (which requires root permissions) and not in the current directory.

  Read the article

• How to fix "Could not open lock file" because "Permission denied"?

  - by user66498

  Whenever trying to install any software and update manger, I get an error stating Package operation failed The installation or removal of a software package failed When I run sudo apt-get update I got this result: conan51xd@conan51xd-Lenovo-B470:~$ sudo apt-get -f install [sudo] password for conan51xd: Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. conan51xd@conan51xd-Lenovo-B470:~$ apt-get update E: Could not open lock file /var/lib/apt/lists/lock - open (13: Permission denied) E: Unable to lock directory /var/lib/apt/lists/ E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied) E: Unable to lock the administration directory (/var/lib/dpkg/), are you root?

  Read the article

• Commenting on Commits

  The source code experience on CodePlex just got more social. Now, you can comment directly on a commit when viewing a project’s source code history. This feature acts as a nice compliment to the existing ability to comment on a pull request's commits. To get started with this feature, navigate to the commit you are interested in from the source tab. As you hover over the line you would like to comment on, an icon to add a comment will appear to the left. Click on the icon, and comment away!     Once you comment on a line, the person who committed the change and anyone involved in the conversation will be notified of the comment by email. Have ideas on how to improve CodePlex? Please visit our suggestions page! Vote for existing ideas or submit a new one. As always you can reach out to the CodePlex team on Twitter @codeplex or reach me directly @Rick_Marron.    

  Read the article

• I'm looking for websites with programming problems that I can practice [on hold]

  - by Spentak

  I want to become a more skilled programmer. I also want to do it through Objective-C and iOS. What websites or programs that you know of have problems that I can solve (with the answers)? I have failed some programming tests for jobs (such as "Given 2 values in a Binary Tree - how do you find the lowest common ancestor?) and I want to become a better engineer. I have developed 54 iOS/Android apps to date, but my core CS Skills apparently are rusty/bad. I have looked at TopCoder - but there aren't very many competitions going on, the website is terrible, and there does not appear to be anything that really supports Objective-C/iOS Websites?

  Read the article

• OO Software Architecture - base class that everything inherits from. Bad/good idea?

  - by ale

  I am reviewing a proposed OO software architecture that looks like this: Base Foo Something Bar SomethingElse Where Base is a static class. My immediate thought was that every object in any class will inherit all the methods in Base which would create a large object. Could this cause problems for a large system? The whole architecture is hierarchical.. the 'tree' is much bigger than this really. Does this sort of architecture have a name (hierarchical?!). What are the known pros and cons?

  Read the article

• What Part of Your Project Should be in Source Code Control?

  - by muffinista

  A fellow developer has started work on a new Drupal project, and the sysadmin has suggested that they should only put the sites/default subdirectory in source control, because it "will make updates easily scriptable." Setting aside that somewhat dubious claim, it raises another question -- what files should be under source control? And is there a situation where some large chunk of files should be excluded? My opinion is that the entire tree for the project should be under control, and this would be true for a Drupal project, rails, or anything else. This seems like a no-brainer -- you clearly need versioning for your framework as much as you do for any custom code you write. That said, I would love to get other opinions on this. Are there any arguments for not having everything under control? Is this sysadmin a BOFH?

  Read the article

• How to tell Wine that I have changed CD when mounting them virtually on a netbook with no CD drive?

  - by glenatron

  I have been trying to catch up with some of the old games from way back that are about right for my little Aspire One netbook through Wine. I've run into a problem Baldurs Gate, however, which is that I can't change CD. Obviously, I don't have a CD drive, so I have copied the CD content onto an external hard drive and I'm using a mount command with the loopback option to persuade the game that the CD is present. This allowed installation to work correctly and works fine to run it and to play the content from the first CD. However, when the game asks for CD2, I'm stuck. If I mount the CD2 ISO to the CD Rom path it doesn't appear to respond, whether or not I have first unmounted CD1. When I ask Wine to show me the CD drive it contains the right data, but it seems as though whatever signal would be interpreted by Windows to mean the CD drive has been closed isn't being sent. Does anyone know of a way to do this, or am I barking up the wrong tree and there is something else I need to do?

  Read the article

• Not able to install nspluginwrapper on 64 bit Ubuntu 12.10

  - by user99305

  This is a brand new installation of 64 bit Ubuntu 12.10. I am not able to install nspluginwrapper. Here is the error message that I get: $ sudo apt-get install nspluginwrapper Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: nspluginwrapper : Depends: nspluginviewer (= 1.4.4-0ubuntu4) but it is not installable E: Unable to correct problems, you have held broken packages. I need nspluginwrapper to get Citrix receiver to work.

  Read the article

• Unable to install Emerald theme manager in Ubuntu 12.04?

  - by kernel_panic

  I learnt how to install ETM from here But when i try to install i get `ubu@sanjay-pc:~$ sudo apt-get install git autoconf libtool libwnck1.0-cil-dev libwnck-dev intltool libdecoration0-dev gawk Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming.code The following information may help to resolve the situation: The following packages have unmet dependencies: libdecoration0-dev : Depends: libdecoration0 (= 1:0.9.7.6-0ubuntu1) but 1:0.9.7.8-0ubuntu1 is to be installed E: Unable to correct problems, you have held broken packages. ` Help Needed

  Read the article

• XNA: Retrieve texture file name during runtime

  - by townsean

  I'm trying to retrieve the names of the texture files (or their locations) on a mesh. I realize that the texture file name information is not preserved when the model is loaded. I've been doing tons of searching and some experimenting but I've been met with no luck. I've gathered that I need to extended the content pipeline and store the file location in somewhere like ModelMeshPart.Tag. My problem is, even when I'm trying to make my own custom processor, I still can't figure out where the texture file name is. :( Any thoughts? Thanks! UPDATE: Okay, so I found something kind of promising. NodeContent.Identity.SourceFilename, only that returns the location of my .X model. When I go down the node tree he is always null. Then there's the ContentItem.Name property. It seems to have names of my mesh, but not my actual texture file names. :(

  Read the article

• How selective do we need to be for an index to be used?

  - by TiborKaraszi

  You know the answer already: It depends. But I often see some percentage value quoted and the point of this post is to show that there is no such percentage value. To get the most out of this blog post, you should understand the basic structure for an index, i.e. how the b+ tree look like. You should also understand the difference between a clustered and a non-clustered index. In essence, you should be able to visualize these structures and searches through them as you read the text. If you find...(read more)

  Read the article

• How to prioritize related game entity components?

  - by Paul Manta

  I want to make a game where you have to run over a bunch of zombies with your car. When moving around, the zombies have a few things to take into consideration: When there's no player around they might just roam about randomly. And even when some other component dictates a specific direction, they should wobble to the left and right randomly (like drunk people). This implies a small, random, deviation in their movement. They should avoid static obstacles. When they see they are headed towards a wall, they should reorient themselves. They should avoid the car. They should try to predict where the car will be based on its velocity and try to move out of the way. When they can, they should try to get near the player. All these types of decisions they have to do seem like they should be implemented in different components. But how should I manage them? How can I give different components different weights that reflect the importance of each decision (in a given situation)? I would need some other component that acts as a manager, but do you have any tips on how I should implement it? Or maybe there's a better solution?...

  Read the article

• X 11 Development Librararies

  - by user2592799

  I am new to ubuntu, I am using ubuntu 13.10, and trying to install NS-2. During the installation I am facing the following error; X11/Xlib.h: No such file or directory Then i tried to install sudo apt-get install libx11-dev This time I am facing the following error; Reading package lists... Done Building dependency tree Reading state information... Done Package libx11-dev is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package 'libx11-dev' has no installation candidate I have no idea how to deal it, Please help Thanks in advance

  Read the article

• Review: Logitech t620 Touch Mouse and Windows 8

  - by Tim Murphy

  It isn’t very often that I worry much about hardware, but since I heard some others talking about “touch” mice for their Windows 8 machines I figured I would try one out and see what the experience was.  The only Windows 8 compatible touch mouse that they had in the store was the Logitech t630 Touch Mouse.  At $69 it isn’t exactly a cheap purchase. So how does it work with Windows 8.  First it works well as a normal mouse with touch scroll capabilities.  Scrolling works both horizontally and vertically.  Then you get into to the Win8 features, all of which are associated with the back 2/3 of the mouse.  If you double-touch-tap (not depressing the internal button) it acts as a Windows home screen button.  The next feature is switching applications.  This is accomplished by dragging a finger from the left edge of the mouse in.  Bringing up the Windows 8 open apps list is the same movement as on the table where you drag in from the left and then move back to the right.  The last gesture available is to bring up the charms.  This is performed by dragging in from the right side of the mouse. There is a certain amount of configurability.  You can switch dominant hand configuration as well as turn on and off gestures as shown in the screenshot below. It is nice that they kept the gestures similar to the table gestures.  Hopefully future updates to the drivers will bring other gestures, but this is definitely a good start.  It would be interesting to also compare this to the Microsoft Touch Mouse and see if there are additional gestures such as app close and for the app bar. del.icio.us Tags: Logitech,Windows 8,Win8,t620,Logitech t620 Touch Mouse,Gesture

  Read the article

• Unable to locate essential development tools Ubuntu 11.04

  - by Anita 7

  I'm using Ubuntu 11.04 (VMware). I aim to implement OpenMP. Im using gcc 4.5 compiler. I tried to install it by using the command sudo apt-get install gcc 4.5. Afterwards I proceed with gcc -fopenmp foo.c BUT the output was: gcc: foo.c: No such file or directory gcc: no input files –. Now I tried to install the package by using : ubuntu@ubuntu:~$ sudo apt-get install essential Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package essential. I also tried apt-cache search essential and after that sudo apt-get install essential-dev But the same error again, E: Unable to locate package essential-dev Any solution,please? Do I need to download any package? What should I do? Thank you in advance :))

  Read the article

• How to model an address type in DDD?

  - by Songo

  I have an User entity that has a Set of Address where Address is a value object: class User{ ... private Set<Address> addresses; ... public setAddresses(Set<Address> addresses){ //set all addresses as a batch } ... } A User can have a home address and a work address, so I should have something that acts as a look up in the database: tbl_address_type ------------------------------------------------ | address_type_id | address_type | ------------------------------------------------ | 1 | work | ------------------------------------------------ | 2 | home | ------------------------------------------------ and correspondingly tbl_address ------------------------------------------------------------------------------------- | address_id | address_description |address_type_id| user_id | ------------------------------------------------------------------------------------- | 1 | 123 main street | 1 | 100 | ------------------------------------------------------------------------------------- | 2 | 456 another street | 1 | 100 | ------------------------------------------------------------------------------------- | 3 | 789 long street | 2 | 200 | ------------------------------------------------------------------------------------- | 4 | 023 short street | 2 | 200 | ------------------------------------------------------------------------------------- Should the address type be modeled as an Entity or Value type? and Why? Is it OK for the Address Value object to hold a reference to the Entity AdressType (in case it was modeled as an entity)? Is this something feasible using Hibernate/NHibernate? If a user can change his home address, should I expose a User.updateHomeAddress(Address homeAddress) function on the User entity itself? How can I enforce that the client passes a Home address and not a work address in this case? (a sample implementation is most welcomed) If I want to get the User's home address via User.getHomeAddress() function, must I load the whole addresses array then loop it and check each for its type till I found the correct type then return it? Is there a more efficient way than this?

  Read the article

• Unit testing a text index

  - by jplot

  Consider a text index such as a suffix tree or a suffix array supporting Count queries (number of occurrences of a pattern) and Locate queries (the positions of all the occurrences of a pattern) over a given text. How would you go about unit testing such a class ? What I have in mind is to generate a big random string then extract a random substring from this big string and compare the results of both queries with naive implementations (such as string::find). Another idea I have is to find the most frequent substring of length l appearing in the original string (using perhaps a naive method) and use these substrings for testing the index. This isn't the best way, so what would be a good design of the unit tests for a text index ? In case it matters, this is in C++ using google test.

  Read the article

• Changing Wallpaper on 12.04 Login Screen

  - by userIsAMonkey

  I'm using this link but seems to be not working on 12.04, here's the Terminal message below: Are there other softwares/tips for changing the login screen? I'm also using link but seems outdated. Failed to fetch http://ppa.launchpad.net/claudiocn/slm/ubuntu/dists/precise/main/source/Sources 404 Not Found W: Failed to fetch http://ppa.launchpad.net/claudiocn/slm/ubuntu/dists/precise/main/binary-amd64/Packages 404 Not Found W: Failed to fetch http://ppa.launchpad.net/claudiocn/slm/ubuntu/dists/precise/main/binary-i386/Packages 404 Not Found E: Some index files failed to download. They have been ignored, or old ones used instead. law@ubuntu:~$ sudo apt-get install simple-lightdm-manager Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package simple-lightdm-manager

  Read the article

• Cocos2d iOS A* Star Path finding help

  - by user32581

  Hello I need help implementing this class https://github.com/sqlboy/tiled-games/tree/master/src into my iOS game. Im using the suggested code of: AStarPathFinder pathFinder = [[AStarPathFinder alloc] initWithTileMap:tileMap collideLayer:@"collide"]; // Optionally, you can set the name of the collide property key and the value it expects. [pathFinder setCollideKey:@"collidable"] // defaults to COLLIDE [pathFinder setCollideValue:@"True"] // defaults to 1 // highlight a path (src and dst are tile coorindates) [pathFinder highlightPathFrom:srcTile to:dstTile]; // move a sprite [pathFinder moveSprite:player from:srcTile to:dstTile atSpeed:0.1f]; I get the following error: Instance method '-initWithTileMap:collideLayer:' not found (return defaults to 'id') This is the official post for the class: http://www.cocos2d-iphone.org/forums/topic/just-pushed-a-cctmxtiledmap-a-pathfinding-class-to-github/ The only other code I added was: #import "AStarPathFinder.h" I think I am perhaps missing something! I am grateful for any help!

  Read the article

• What is the good way of sharing specific data between ViewModels

  - by voroninp

  We have IAppContext which is injected into ViewModel. This service contains shared data: global filters and other application wide properties. But there are cases when data is very specific. For example one VM implements Master and the second one - Details of selected tree item. Thus DetailsVm must know about the selected item and its changes. We can store this information either in IAppContext or inside each concerned VM. In both cases update notifications are sent via Messenger. I see pros and cons for any of the approaches and can not decide which one is better. 1st: + explicitly exposed shared proerties, easy to follow dependencies - IAppContxt becomes cluttered with very specific data. 2nd: the exact opposite of the first and more memory load due to data duplication. May be someone can offer design alternatives or tell that one of the variants is objectively superior to the other cause I miss something important?

  Read the article

• Is there an apt command to download a deb file from the repositories to the current directory?

  - by Lekensteyn

  I am often interested in the installation triggers (postinst, postrm) or certain parts of packages (like /usr/share and /etc). Currently, I am running the next command to retrieve the source code: apt-get source [package-name] The downside is, this file is often much bigger than the binary package and does not reflect the installation tree. Right now, I am downloading the packages through http://packages.ubuntu.com/: Search for [package-name] Select the package Click on amd64/i386 for download Download the actual file This takes too long for me and as someone who really likes the shell, I would like to do something like the next (imaginary) command: apt-get get-deb-file [package-name] I could not find something like this in the apt-get manual page. The most close I found was the --download-only switch, but this puts the package in /var/cache/apt/archives (which requires root permissions) and not in the current directory.

  Read the article

• Get Func-y

  - by PhubarBaz

  I was working on a Windows form app and needed a way to call out to a service without blocking the UI. There are a lot of ways to do this but I came up with one that I thought was pretty simple. It utilizes the System.Func<> generic class, which is basically a way to create delegates using generics. It's a lot more compact and simpler than creating delegates for each method you want to call asynchronously. I wanted to get it down to one line of code, but it was a lot simpler to use three lines.In this case I have a MyServiceCall method that takes an integer parameter and returns a ServiceCallResult object.public ServiceCallResult MyServiceCall(int param1)...You start by getting a Func<> object for the method you want to call, in this case MyServiceCall. Then you call BeginInvoke() on the Func passing in the parameter. The two nulls are parameters BeginInvoke expects but can be ignored here. BeginInvoke returns an IAsyncResult object that acts like a handle to the method call. Finally to get the value you call EndInvoke on the Func passing in the IAsyncResult object you got back from BeginInvoke.Func<int, ServiceCallResult> f = MyServiceCall;IAsyncResult async = f.BeginInvoke(23, null, null);ServiceCallResult result = f.EndInvoke(async);Doing it this way fires off a new thread that calls the MyServiceCall() method. This leaves the main application thread free to update the UI while the method call is running so it doesn't become unresponsive.

  Read the article

• (12.04 vm/server) Dist-upgrade to 3.2.0-63 wants to remove git (1.9.2) and git-core - is that the correct behavior?

  - by YellowShark

  was wondering if anyone knows dist-upgrade wants to remove git. FWIW, this is a pretty simple box, mainly used for web dev. $ uname -a Linux precise64 3.2.0-61-generic #93-Ubuntu SMP Fri May 2 21:31:50 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux $ git --version git version 1.9.2 $ sudo apt-get dist-upgrade Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Done The following packages will be REMOVED: git git-core The following NEW packages will be installed: linux-headers-3.2.0-63 linux-headers-3.2.0-63-generic linux-image-3.2.0-63-generic The following packages will be upgraded: git-man linux-headers-server linux-image-server linux-server phpmyadmin 5 upgraded, 3 newly installed, 2 to remove and 0 not upgraded. Need to get 58.8 MB of archives. After this operation, 199 MB of additional disk space will be used. Do you want to continue [Y/n]?

  Read the article

• How to specify ingredients in Schema.org (other than recipes or drugs)?

  - by guillem

  I'd like to use Schema.org for a series of product specs pages. The products are cosmetics (shampoos, creams, etc.) and ideally an INCI declaration will be included for every product. I'd like to use Schema.org in the declaration, but I cannot find a suitable category in Schema.org. Ingredients is meant for cooking recipes, and ActiveIngredient for (medical) drugs and dietary supplements. Did I overlook some part of the tree? Any ideas for a workaround? Or am I trying to do something out of scope?

  Read the article

< Previous Page | 86 87 88 89 90 91 92 93 94 95 96 97  | Next Page >