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  • How are larger games organized?

    - by Matthew G.
    I'm using Java, but the language I'm using here is probably irrelevant. I'd like to create an economy based on an ancient civilization. I'm not sure how to design it. If I were working on a smaller game, like a copy of "Space Invaders", I'd have no problem structuring it like this. Game -Main Control Class --Graphics Class --Player Class --Enemy class I'd pass the graphics class to both the player and enemy class so they could call graphics functions. I don't understand how I'd do this for larger projects. Do I create a country class that contains a bunch of towns? Do the towns contain a lot building class, most contain classes of people? Do I make a path finding class that the player can access to get around? How exactly do I structure this and pass all these references around? Thanks.

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  • Not able to generate correct build.xml for android test project

    - by user338656
    Hi, I have created a main android project using "android" utility. e.g. android create project --target 1 --name MyApp --path C:\testandroid\myui --activity LaunchActivity --package com.myui.activity build.xml got generated fine (has ant targets like debug, release etc) I generated a test android project (which depends on main project). I used "android" utility to do that. e.g. android create test-project --path C:\testandroid\myuitest --main ..\myui --name MfAppTest build.xml got generated but incorrect (does not have targets like run-tests). It has same targets as main project. Can someone help as where is the problem? Thx. Ashley

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  • Help with variables and new lines, and quoting in a bash script

    - by Scott
    I would like to automate the following svn command. Note this command produces the desired results on my system - Ubuntu 10.04, svn 1.6.6, bash shell, when issued from the command line: svn ci -m $'Added new File: newFile.txt\nOrig loc: /etc/networking/newFile.txt' /home/user/svnDir/newFile.txt I would like to run that command in a bash script, assuming that the original full path to the file is contained in the variable $oFileFull, and the filename is in $oFileName. The script is executed from the svn directory. I need to allow for the possibility that the file name and or path contain spaces. so the line inside my shel script might look like: svn ci -m$'Added new file: ${oFileName}\nOrig loc: ${oFileFull}' ${oFileName} But I want the variables (which may contain spaces) expanded before the command is executed, and I cannot figure out how to do this while enclosing the svn comment in single quotes which is necessary in order to get the new line in the subversion comment log. I am pulling my hair out trying to figure out how to properly quote and assemble this command. Any help appreciated.

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  • How to upload an image to imageshark using curl?

    - by cinek1lol
    Hello: I wrote a program using curl.exe that sends pictures to imageshark and receives a link to the pictures. The problem that I have to specify the path to the image on the disk, and the rest of my so constructed that I have uploaded these pictures to a binary char array And I mean, I can send these pictures to char variable, and not giving the file path (you know what I mean?) Not too much know how to use it to save the library directly to curl. I'll be very grateful for any help sorry I know little English. wants to send a file loaded POST method to the variable char binary. Programs that are written above, send the file to disk. Do you understand what's going on? This is look like I would like to send the file in char variable, rather than on the hard disk I found the program, but he sends the entire file, and I would like to have it sent to the variable char dz

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  • Starting mongrel with a custom command line argument

    - by whaka
    I would like to be able to start a mongrel or webrick server by passing an extra command line argument that I can read somewhere inside my rails application. An example would be: ruby script/server -p3000 --target=FOO Here, --target is a custom switch who's value I would like to intercept in my rails application. However, this yields the error: server: invalid option: --target=FOO I found mongrel documentation which mentions a -C (--config=PATH) argument specifying a full path to a yml configuration file, but specifying that switch gives the same error as above. I presume this option is deprecated. Is there another way to accomplish this?

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  • How to bind to current riacontext user in xaml

    - by Jakob
    Hi. I Have a datacontext that has a "getuserbyguid" method, i want to pass in the current logged in user.userid as a parameter, but I don't know how to bind to the current logged in user through xaml. I've tried {Binding Path=User.UserId} but without any luck. I'm using the built in riaservices authentication methods, so the userinfo should be exposed in the riacontext, or am I wrong about this? I have this for instance <riaControls:DomainDataSource x:Name="FollowingGridData" AutoLoad="True" QueryName="GetUsersFollowedByIDQuery" LoadSize="20"> <riaControls:DomainDataSource.DomainContext> <my:NotesDomainContext /> </riaControls:DomainDataSource.DomainContext> <riaControls:DomainDataSource.QueryParameters> <riaControls:Parameter ParameterName="userguid" Value="{Binding Path=User.UserId}" /> </riaControls:DomainDataSource.QueryParameters> </riaControls:DomainDataSource> But it gives me an error saying that it's not a guid, meaning that it must not be binding correctly

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  • C# - implementing GetEnumerator() for a collection inherited from List<string>

    - by Vojtech
    Hi, I am trying to implement FilePathCollection. Its items would be simple file names (without a path - such as "image.jpg"). Once the collection is used via foreach cycle, it should return the full path created by concatenating with "baseDirectory". How can I do that? public class FilePathCollection : List<string> { string baseDirectory; public FileCollection(string baseDirectory) { this.baseDirectory = baseDirectory; } new public System.Collections.IEnumerator GetEnumerator() { foreach (string value in this._list) //this does not work because _list is private yield return baseDirectory + value; } } Thanks in advance! :-)

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  • how to read a file in other directory in python

    - by mazen.r.f
    i have a file its name is 5_1.txt in a directory i named it direct , how can i read that file using the instruction read. i verified the path using : os.getcwd() os.path.exists(direct) the result was True x_file=open(direct,'r') and i got this error : Traceback (most recent call last): File "<pyshell#17>", line 1, in <module> x_file=open(direct,'r') IOError: [Errno 13] Permission denied i don't know why i can't read the file ? any suggestion ? thanks .

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  • Python script run via cron does not execute occassionally

    - by gcorne
    I have a simple python script for fetching tweets and caching them to disk that is configured to run every two minutes via cron. */2 * * * * (date ; /usr/bin/python /path/get_tweets.py) >> /path/log/get_tweets.log 2>&1 The script runs successfully most of the time. However, every so often the script doesn't execute. In addition to other logging, I added a simple print statement above the meat of the script and nothing except the output from the initial date command makes it to the log. #!/usr/bin/python # Script for fetching tweets and then storing them as an HTML snippet for inclusion using SSI print "Starting get_tweets.py" Any ideas? The system is a VPS running Centos 5.3 with python 2.4.

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  • How can I use rhythm box and conky together?

    - by Ryuzaki
    I'm still fairly new at this and 12.04 LTS is my first hands on experience with Ubuntu all together. After spending a few weeks and trying to learn the in's and out's of the OS, I'm actually finding it easier to use in my off-time than Windows. However, my question today deals with the following: I need help in trying to pull information from Rhythm Box in order to display it using Conky. What I want is the following: » Album Title » Song Name » Artist » Album Picture Is there a way to pull these and display them so that they will change as the songs change? I tried my hardest but I'm still a noob when it comes to using terminal and coding.

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  • Installing mySQL on mac for use with python

    - by Paul Patterson
    I am aware that there are umpteen similar questions here, and on other forums, but none of them have been able to help me. I simply want to install mySQL on my mac (running snow leopard 10.6.5) for use with Python. So far I have: 1) downloaded and installed [mysql-5.5.8-osx10.6-x86_64.dmg] (I have also accidentally downloaded and installed [mysql-5.1.54-osx10.6-x86_64.dmg]) 2) downloaded and installed [mySQL-python-1.2.3] 3) added the following to my .bash_profile: [export PATH=$PATH:/usr/local/mysql/bin] but when i run:import mySQLdb in terminal I am met with the following message: Traceback (most recent call last): File "<stdin>", line 1, in <module> ImportError: No module named mySQLdb Can anyone help?

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  • Is this bad style of programming(C#) ?

    - by m0s
    Hi, so in my program I have parts where I use try catch blocks like this try { DirectoryInfo dirInfo = new DirectoryInfo(someString); //I don't know if that directory exists //I don't know if that string is valid path string... it could be anything //Some operations here } catch(Exception iDontCareWhyItFailed) { //Didn't work? great... we will say: somethings wrong, try again/next one } Of course I probably could do checks to see if the string is valid path (regex), then I would check if directory exists, then I could catch various exceptions to see why my routine failed and give more info... But in my program it's not really necessary. Now I just really need to know if this is acceptable, and what would a pro say/think about that. Thanks a lot for attention.

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  • Elantech trackpad being identified as a logitech wheel mouse

    - by user11895
    I recently purchased a Samsung RF510 laptop computer, which I absolutely love. However, upon installing Ubuntu 10.10 onto it I couldn't get the trackpad to function properly. It worked as a basic mouse (point and click) but had no functionality for edge scrolling or any of the multitouch settings the trackpad is capable of. After doing a lot of research I discovered the reason is a known issue where the Ubuntu kernel will improperly detect an Elantech trackpad as a logitech PS/2 wheel mouse, and as such will gain none of the functionality that seems to be coded for synaptics trackpads. The question I have is: does anyone know a way to get this working properly? This is my first time trying to run Ubuntu on a laptop (actually, it's my first laptop in the last 12 years) and I'm finding the experience to be intolerable without the basic scrolling/zooming/etc I've been used to using for as long as I can remember.

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  • What resources do I need to start developing games? [on hold]

    - by Matt
    I'm in a unique situation here. I'm only just now a sophomore in high school and I've had a passion for gaming and technology since I was a child. I picked up python at age 9 and have learned 3 other languages since then. I never was good at art or such things, but I can imagine amazing logic devices to carry out game elements I would like to try. I've been researching and finding very vague advice on what needs to be present in order for me to develop. I've attempted at many things, but they never become more than a text-based mess. What education in specific would I need to advance in the game industry? Workflows are never clear to me. I've watched videos on Valve, Zenimax, and many others on how to get from an idea to a product. I've never gotten a finished product, but I've always had the idea clearly in my head.

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  • How to save the content of Textbox into a textfile

    - by Owais Wani
    I have a textbox which has some content. I also have a button (SAVE) which shud open the FileSaveDialog and allow the content to be saved in a .txt file. XAML: <TextBox Height="93" IsReadOnly="True" Text="{Binding Path=ReadMessage, Mode=TwoWay}" Name="MessageRead" /> <Button Content="Save" Command="{Binding Path=SaveFileCommand}" Name="I2CSaveBtn" /> ViewModel: private string _readMessage = string.Empty; public string ReadMessage { get { return _readMessage; } set { _readMessage = value; NotifyPropertyChanged("ReadMessage"); } } public static RelayCommand SaveFileCommand { get; set; } private void RegisterCommands() { SaveFileCommand = new RelayCommand(param => this.ExecuteSaveFileDialog()); } private void ExecuteSaveFileDialog() { //What To Do HERE??? } What I basically need is to read the content of textbox, open a file save dialog and store it in a text file to be saved in my system.

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  • IPhone avcomposition issue

    - by user346443
    Hi, Im trying to create a video that shows two videos one after the other using avcomposition on the iphone. This code works, however i can only see one of the videos for the entire duration of the newly created video - (void) startEdit{ AVMutableComposition* mixComposition = [AVMutableComposition composition]; NSString* a_inputFileName = @"export.mov"; NSString* a_inputFilePath = [NSTemporaryDirectory() stringByAppendingPathComponent:a_inputFileName]; NSURL* a_inputFileUrl = [NSURL fileURLWithPath:a_inputFilePath]; NSString* b_inputFileName = @"output.mov"; NSString* b_inputFilePath = [NSTemporaryDirectory() stringByAppendingPathComponent:b_inputFileName]; NSURL* b_inputFileUrl = [NSURL fileURLWithPath:b_inputFilePath]; NSString* outputFileName = @"outputFile.mov"; NSString* outputFilePath = [NSTemporaryDirectory() stringByAppendingPathComponent:outputFileName]; NSURL* outputFileUrl = [NSURL fileURLWithPath:outputFilePath]; if ([[NSFileManager defaultManager] fileExistsAtPath:outputFilePath]) [[NSFileManager defaultManager] removeItemAtPath:outputFilePath error:nil]; CMTime nextClipStartTime = kCMTimeZero; AVURLAsset* a_videoAsset = [[AVURLAsset alloc]initWithURL:a_inputFileUrl options:nil]; CMTimeRange a_timeRange = CMTimeRangeMake(kCMTimeZero,a_videoAsset.duration); AVMutableCompositionTrack *a_compositionVideoTrack = [mixComposition addMutableTrackWithMediaType:AVMediaTypeVideo preferredTrackID:kCMPersistentTrackID_Invalid]; [a_compositionVideoTrack insertTimeRange:a_timeRange ofTrack:[[a_videoAsset tracksWithMediaType:AVMediaTypeVideo] objectAtIndex:0] atTime:nextClipStartTime error:nil]; nextClipStartTime = CMTimeAdd(nextClipStartTime, a_timeRange.duration); AVURLAsset* b_videoAsset = [[AVURLAsset alloc]initWithURL:b_inputFileUrl options:nil]; CMTimeRange b_timeRange = CMTimeRangeMake(kCMTimeZero, b_videoAsset.duration); AVMutableCompositionTrack *b_compositionVideoTrack = [mixComposition addMutableTrackWithMediaType:AVMediaTypeVideo preferredTrackID:kCMPersistentTrackID_Invalid]; [b_compositionVideoTrack insertTimeRange:b_timeRange ofTrack:[[b_videoAsset tracksWithMediaType:AVMediaTypeVideo] objectAtIndex:0] atTime:nextClipStartTime error:nil]; AVAssetExportSession* _assetExport = [[AVAssetExportSession alloc] initWithAsset:mixComposition presetName:AVAssetExportPresetLowQuality]; _assetExport.outputFileType = @"com.apple.quicktime-movie"; _assetExport.outputURL = outputFileUrl; [_assetExport exportAsynchronouslyWithCompletionHandler: ^(void ) { [self saveVideoToAlbum:outputFilePath]; } ]; } - (void) saveVideoToAlbum:(NSString*)path{ if(UIVideoAtPathIsCompatibleWithSavedPhotosAlbum(path)){ UISaveVideoAtPathToSavedPhotosAlbum (path, self, @selector(video:didFinishSavingWithError: contextInfo:), nil); } } - (void) video: (NSString *) videoPath didFinishSavingWithError: (NSError *) error contextInfo: (void *) contextInfo { NSLog(@"Finished saving video with error: %@", error); } I've posted the whole code as it may help someone else. Shouldn't nextClipStartTime = CMTimeAdd(nextClipStartTime, a_timeRange.duration); [b_compositionVideoTrack insertTimeRange:b_timeRange ofTrack:[[b_videoAsset tracksWithMediaType:AVMediaTypeVideo] objectAtIndex:0] atTime:nextClipStartTime error:nil]; add the second video to the end of the first Cheers

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  • Java on Ubuntu server 12.04?

    - by Sean Dunwoody
    I'm a little confused at the moment. My back story in short, is that I'm trying to set up a Minecraft server on an Ubuntu server I've recently set up, obviously to do this I needed Java, but after googling for a short while I wasn't entirely sure whether it is possible (or legal?) to do so in Ubuntu 12.04 due to licensing type issues - so I installed open JDK instead which appears not to work properly with the Minecraft server software (I half expected this) I'm now considering uninstalling open JDK and instead trying to get proper Java on there instead, my question is, is this possible? Is it Legal? And if so how do I go about doing it? Because I'm finding it very difficult to find any instructions on how to do so for 12.04 . . .

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  • Why wont my .NET 3.5 app run on fresh installation of windows7?

    - by acidzombie24
    In C:\Program Files\Reference Assemblies\Microsoft\Framework i see v3.0 and v3.5. I found that path in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\InstallRoot which also has that path. In C:\Windows\Microsoft.NET\Framework i see versions from 1 to 3.5 My app was built in msvs2010rc1 targeting 3.5. In fact in my project files i see v3.5. So whats with this? Why cant i run it? -edit- The application crashes on double click. With no exception dialog. Ok i see the problem. Sorry guys :$. I hope this post serves as a reference to someone else. I completely forgot that my app uses SDL.NET and i am use to C++ telling me i have forgotten a DLL.

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  • Is there a consolidated API reference for the Firefox browser.xul?

    - by cxw
    I have used Greasemonkey many times and am stepping up to Firefox extension development. Is there a consolidated reference for the variables, functions, and anything else that is available to overlays on browser.xul? Besides gBrowser, I note from the source that there are at least gNavToolbox, gURLBar, and gNavigatorBundle and would like more information about what services they provide. I have looked through the XUL School and XUL Tutorial on MDN, searched MozillaZine, and browsed the Jetpack documentation without finding anything but references to gBrowser. I have also looked at the code snippets referenced elsewhere (e.g.) and found specifics, but nothing that puts all the information together in one place. Is there such a reference?

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  • SQL Database Management Survey

    Win one of two $50 Amazon vouchers by entering our database management survey. We’re finding out more about how SQL database professionals are doing backup and recovery, using cloud services and more. Answer the short survey for a chance to win. Learn Agile Database Development Best PracticesAgile database development experts Sebastian Meine and Dennis Lloyd are running day-long classes designed to complement Red Gate’s SQL in the City US tour. Classes will be held in San Francisco, Chicago, Boston and Seattle. Register Now.

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  • Console-App to get all open files for processes

    - by t.kehl
    Hi I am searching for a console-app (where I can pipe the output to a txt-file) which gives me a list of all current processes and the files which each process has open. The tool should also work when the user doesn't has administrativ-privilegues and it should also give file-path which are located on the network (UNC and absolute/mappings). Is there something like this which I can call from another tool and get the information? I am on a windows system. I have a open filename and need now to get the whole path for the file

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  • Non-object-oriented game tutorials

    - by Arcadian
    I've been tasked with writing an essay extolling the virtues of object oriented programming and creating an accompanying game to demonstrate them. My initial idea is to find a tutorial for a simple game written in a programming language which does not follow the OOP paradigm (or written in an OOP language but not in an OOP way) and recreate it in an OOP way using either C# or Java (haven't yet decided). This would then allow me to make concrete comparisons between the two. The game doesn't have to be anything complex; Tetris, Pong, etc. that sort of thing. The problem I've had so far is finding a suitable tutorial, any suggestions?

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  • TStringList and TThread that does not free all of its memory

    - by VanillaH
    Version used: Delphi 7. I'm working on a program that does a simple for loop on a Virtual ListView. The data is stored in the following record: type TList=record Item:Integer; SubItem1:String; SubItem2:String; end; Item is the index. SubItem1 the status of the operations (success or not). SubItem2 the path to the file. The for loop loads each file, does a few operations and then, save it. The operations take place in a TStringList. Files are about 2mb each. Now, if I do the operations on the main form, it works perfectly. Multi-threaded, there is a huge memory problem. Somehow, the TStringList doesn't seem to be freed completely. After 3-4k files, I get an EOutofMemory exception. Sometimes, the software is stuck to 500-600mb, sometimes not. In any case, the TStringList always return an EOutofMemory exception and no file can be loaded anymore. On computers with more memory, it takes longer to get the exception. The same thing happens with other components. For instance, if I use THTTPSend from Synapse, well, after a while, the software cannot create any new threads because the memory consumption is too high. It's around 500-600mb while it should be, max, 100mb. On the main form, everything works fine. I guess the mistake is on my side. Maybe I don't understand threads enough. I tried to free everything on the Destroy event. I tried FreeAndNil procedure. I tried with only one thread at a time. I tried freeing the thread manually (no FreeOnTerminate...) No luck. So here is the thread code. It's only the basic idea; not the full code with all the operations. If I remove the LoadFile prodecure, everything works good. A thread is created for each file, according to a thread pool. unit OperationsFiles; interface uses Classes, SysUtils, Windows; type TOperationFile = class(TThread) private Position : Integer; TPath, StatusMessage: String; FileStringList: TStringList; procedure UpdateStatus; procedure LoadFile; protected procedure Execute; override; public constructor Create(Path: String; LNumber: Integer); end; implementation uses Form1; procedure TOperationFile.LoadFile; begin try FileStringList.LoadFromFile(TPath); // Operations... StatusMessage := 'Success'; except on E : Exception do StatusMessage := E.ClassName; end; end; constructor TOperationFile.Create(Path : String; LNumber: Integer); begin inherited Create(False); TPath := Path; Position := LNumber; FreeOnTerminate := True; end; procedure TOperationFile.UpdateStatus; begin FileList[Position].SubItem1 := StatusMessage; Form1.ListView4.UpdateItems(Position,Position); end; procedure TOperationFile.Execute; begin FileStringList:= TStringList.Create; LoadFile; Synchronize(UpdateStatus); FileStringList.Free; end; end. What could be the problem? I thought at one point that, maybe, too many threads are created. If a user loads 1 million files, well, ultimately, 1 million threads is going to be created -- although, only 50 threads are created and running at the same time. Thanks for your input.

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  • Memory leak till crash due to HttpRequest

    - by Alex R.
    I played with HttpRequest and realized that the memory is not cleaned up after any request. After some time the running tab within Chrome will crash. Here is some testing code. Put a large sized file into the 'www' directory and set the URL in the code accordingly. import 'dart:async'; import 'dart:html'; void main() { const PATH = "http://127.0.0.1:3030/PATH_TO_FILE"; new Timer.periodic(new Duration(seconds:10), (Timer it)=>getString(PATH)); } void getString( String url){ HttpRequest.getString(url).then((String data){ }); } Is this really a bug or did I something wrong?

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