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• How to set probability for a targetSprite shooting accuracy in shooting game ?

  - by srikanth rongali

  Hi, My code is ion cocos2D. I have written code for generating the bullets from the enemy gun for every 0.3seconds. The enemySprite is in right side of the screen in (land scape mode) at winSize.height/2. the bullet starts from the same point and reach the player's end. I used rand() to generate y-coordinate for the bullet to hit on player side. Now, if the bullet bounded rectangle meets the player bounded rectangle the enemy won. If it misses enemy shoots again after 0.3 seconds. Every thing is fine up to here for me. But I have 10 enemies and each have accuracy of hitting player of probabilities ranging from 0.80 to 1.0. First enemy probability is .80 and 10 enemy's is 1.0. How can I adjust the probability for enemy such that it runs according to its probability. Player also hits the enemy.

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• java I/O is blocked while reading on socket when i put off the battery from device.

  - by gunjan goyal

  hi, i m working on client socket connection. client is a GPRS hardware device. i m receiving request from this client on my serversocket and then opening multiple threads. my problem is that when device/client close the socket then my IO detects that throws an exception but when i put off the battery from the device while sending the request to the serversocket it is blocked without throwing any exception. please help me out. thanks in advance. this is my code. try { while ((len = inputStream.read(mainBuffer)) -1) { System.out.println("len= " + len); }//end of while System.out.println("out of while loop");//which is never printed on screen. } catch (IOException e) { e.printStackTrace(); } regards gunjan goyal

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• How to tell if XUL menupopup opens down or up?

  - by Jon

  I have an extension that can be placed on any toolbar (like the bookmarks, menu or status bars). In general, the context menu opens downward, but when placed on the status bar and Firefox is closed to the bottom of the screen, the context menu opens upward. I'd like to try reordering the context menu based on its up or down orientation, so that the same options are always closest to the mouse. For example, when opened downward it appears like this: -- (mouse) --------------- - MenuItem A - --------------- - MenuItem B - --------------- - MenuItem C - --------------- - ....... - --------------- When it opens upwards its like this: --------------- - MenuItem A - --------------- - MenuItem B - --------------- - MenuItem C - --------------- - ....... - --------------- -- (mouse) However, I'd like "MenuItem A" to appear closest to the mouse at all times, since its the most common item. I can render the items dynamically, so I really just need to find out the orientation.

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• Modal View Controller with keyboard on landscape iPad changes location when dismissed

  - by Roi

  I present a modal view controller on my on my iPad with UIModalPresentationFormSheet presentation style and UIModalTransitionStyleCoverVertical transition style. The Modal View Controller contains a UIWebView with some TextFields on it. When the user taps one of the text fields the keyboard comes up. I have noticed that in landscape mode after the keyboard is shown, if I try to dismiss the modal view controller with animation the view changes its position from the center of the screen to the left side just before the animation starts.. This happens only if the keyboard is up and only in landscape mode on the iPad. If the user closes the modal view without pressing on any text field this doesn't happen. Anyone familiar with this strange behavior?

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• VS 2008 SP1 text editor flickering over remote desktop connection

  - by AltairDusk

  I am connecting from a Windows 7 x64 machine to my dev machine running Windows XP SP3 using the built in remote desktop client. For most apps it works fine with no problems, for Visual Studio whenever I am typing the entire text editor keeps redrawing. I stumbled across this question: http://stackoverflow.com/questions/873849/vs-2008-sp1-over-remote-desktop-constant-repainting and I have tried all of the suggestions in it to no effect, including resetting all VS settings back to default then disabling the suggested settings. Has anyone found a reliable solution to this? I feel like I'm going insane with the screen constantly refreshing when I'm working from home. Some additional information: Remote Desktop is set to run at 1680x1050, 15bit color, Low-speed broadband for the experience setting with all but Visual styles and Persistent bitmap caching unchecked. Visual Studio 2008 Team System is running on the dev machine with Service Pack 1 and Power Commands installed.

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• Execute an autocommand only once

  - by Andrej M.

  I have an issue with using GVim on Windows. I have set up the following in my .vimrc: if has("gui_running") autocmd VIMEnter * :source C:/session.vim endif Unfortunately this creates a problem. If I'm a the top of the file and try to move up a line (k), the screen flashes. If I hold the key for just a second it will flash a few dozen times, it is really nasty too look at. I've tried using GUIEnter instead but I got the same results. The docs mention that I can fire an autocommand only once, but I couldn't figure out the exact syntax. Care to help?

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• Stretch column table in Primefaces

  - by Orange91

  How I can prevent to stretch table when I input long text: Screen: http://zapodaj.net/71821572f2445.jpg.html Meyby is it possible to make the text lines stretched row horizontally? My fragment example table: <p:dataTable id="table" styleClass="table" value="#{userMB.allInactive}" var="inactive" paginator="true" rows="15" rowKey="#{inactive.id}" selection="#{userMB.user}" selectionMode="single" > <f:facet name="header"> Lista kont nieaktywnych </f:facet> <p:column headerText="#{msg.firstName}"> <h:outputText value="#{inactive.firstName}" /> </p:column> I tried <p:column headerText="#{msg.firstName}" width="20px"> styleClass for column: <p:column styleClass="column" headerText="#{msg.firstName}" width="20px"> .column { width: 20px; } but I do not see any change, it does not work.

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• Creating a child process on Unix systems?

  - by Hakan Svensson

  I'm trying to create a child process in another process. I am writing both the programs in C language. First I write a dummy process which will be the child process. What it is doing is only to write a string on the screen. It works well on its own. Then I write another program which will be the parent process. However, I can't make it happen. I'm trying to use fork and execl functions together, but I fail. I also want the child process does not terminate until the parent process terminates. How should I write the parent process? Thanks.

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• Layer bigger than iPhone bounds : how to drag , pinch it and somm it with my finger

  - by Tibi

  Hi there, I'd like to set up a layer tree containing images. the super layer will be bigger than the iPhone bounds and i'd like the user to drag it with the finger to let him discovering pictures that are out of the screen... is it feasible ? In the same way, I'd like to user to be able to zoom and turn the layer to see more details on images ... I plan to use core animation with layer tree having the super layer holding all images ... Am I on the right path ?

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• DataGridView lags for a second with large data updates

  - by alexD

  I have a DataGridView with about 400 rows and 10 columns. When the user first displays this table, it receives all of the data from the server and populates the table. The DGV uses a DataTable as it's data source, and when updating the DataTable I use row.BeginEdit/EndEdit and acceptChanges, but when the View itself is updated it lags for a second while all of the DGV is being updated. I am wondering if there is a way to make this smooth, so that for example, if the user is scrolling through the data and it updates, it won't interrupt the scrolling. Or if the user is moving the display around the screen and it updates, it won't interrupt. Is there an easy way to do this? If not, is there away to prevent the DGV from updating the view until all events have ended so it won't be repainted until the user stops scrolling, dragging, etc ?

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• A CSS code to put text saved in other server into blogspot blog..???

  - by Nok Imchen

  I have a blog hosted on blogspot dot com. In that blog, i want to put some data like Google search string or etc automatically. I want it to be done in this way: Just put a code (server side scripting) linking to a text file or PHP file, and the code will extract the text and output in my blogspot blog. What i DONT want is to use javascript. Beacause, if i use javascript then the output will be seen only in the users screen. I want the output to be seen by Google Bot too. Thanking you in anticipation.

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• Newbie: UINavigationController is pulling me back from further learning :(

  - by nithin

  I have created a window-based application and my problem is I am unable to create UINavigationController on the go. InFact I don't know how to do that. My AppDelegeate - (void)applicationDidFinishLaunching:(UIApplication *)application { // Override point for customization after application launch [window addSubview:logInView.view]; [window makeKeyAndVisible]; } here the logInView is an object of @interface LogInViewController : UIViewController { IBOutlet UITextField *usernameField; IBOutlet UITextField *passwordField; IBOutlet UIButton *logInButton; } -(IBAction) logInClick:(id) sender; from the click action of this loginviewcontroller It should be showing the home screen with navigation controller. and I have to add many subviews. My question is where should I init the UINavigationController and where could I write the codes for adding subviews? how to map it with interfacebuilder?

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• Why flash makes Firefox not to respond

  - by Hasan Gürsoy

  I have a full page flash animation. When this page is open at Firefox and I want to minimize or re-size Firefox screen, minimize button starts to blink and Firefox does not take any action till this tab is closed. There is not too much code in the flash file. What can cause this? Also this could not be related with full page. I saw other flash files doing same thing. As I remember same problem at Daily Motion. When trying to switch tab nothing happens till I stop video or close the tab.

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• Adding Listeners at runtime? - Java MVC

  - by Halo

  My model in my MVC pattern, generates components at runtime and gives them to the View to be displayed on the screen through update() method (you know, model is the observable and the view is the observer). But I also need to add listeners to these components, and the controller has the listener methods (because they say the MVC pattern is like this) and it's not involved in this update process. So I can't add the listeners at runtime, but only in the controller's constructor at startup. I've got an idea, that is making the controller the observer and then giving the data to the view, as well as adding the listeners. Do you think this would be OK?

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• can't login to phpmyadmin

  - by user574383

  Hi, i am new at linux but i need phpmyadmin on my centos server. I did this: cd /var/www/html/ (document root of apache) wget http://sourceforge.net/projects/phpmyadmin/path/to/latest/version tar xvfz phpMyAdmin-3.3.9-all-languages.tar.gz mv phpMyAdmin-3.3.9-all-languages phpmyadmin rm phpMyAdmin-3.3.9-all-languages.tar.gz cd phpmyadmin/ cp config.sample.inc.php config.inc.php Ok so then i just got to a webbrowser and go to www.$ip/phpmyadmin and i am presented with a login screen asking for username and password. How can i get these credentials to log in? I'd like to log in as root i guess. But i don't know how to setup a root account and create a password for root using the cli and mysql. Please help? Thanks.

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• Creating an Improved Digital Zoom

  - by Kazar

  Hey, Ok, so I have a given video source (for the sake of the example, it is a camera). It does not have optical zoom, but we supply digital zoom instead. Now this digital zoom is pretty simple, simply cropping the image to a specified portion, and filling the screen with that portion. The problem is that the zoomed video can have pretty rubbish quality when the digital zoom is enabled. I am wondering if anyone knows of an approach by which a higher quality of digital zoom can be achieved in real-time. The software is on Windows, and the video is rendered using DirectShow, but it isn't a platform solution I'm necessarily after, more just a better approach to the problem. Cheers

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• Rotate image in Quartz? Image is upside down! (iPhone)

  - by Johannes Jensen

  I don't want to transform the ENTIRE context. I'm making a game with Quartz, and I'm drawing my player with lines, rects and ellipses. And then I have diamong.png which I rendered at 0,0 in the top left of the screen. Problem is... It renders upside down! How would I rotate it 180 degrees? Here's some of my code: CGImageRef diamondImage = CGImageRetain([UIImage imageWithContentsOfFile: [[NSBundle mainBundle] pathForResource:@"Diamond.png" ofType:nil]].CGImage); CGContextDrawImage(context, CGRectMake(0, 0, 32, 24), diamondImage); If it's of any help, I'm using Landscape mode, with home button to the right. It's defined both in my .plist, and in my ViewController's -shouldAutorotateToInterfaceOrientation:interfaceOrientation: How would I rotate/transform it?

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• Process touches behind the UINavigationBar

  - by Reed Olsen

  In my application, I'm displaying a fullscreen image in a 320 x 480 frame. After I display the image, I fade the navigation bar out to allow the user to see the whole picture. When the user taps in the area where the navigation bar was, I would like to bring the navigation bar back. This is very similar to what happens in the iPhone Photos app. Unfortunately, after I've hidden the UINavigationBar, I can't process touches on the screen where the navigation bar once was. I believe this is because the origin of the parent view is right below the navigation bar: How can I process touches in this area to bring the nav bar back?

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• $().mouseMove <-- Empty selector in jQuery 1.4

  - by Matrym

  The following bit of code breaks in the upgrade to jquery 1.4: $().mousemove( function (e) { defaults.mouseX = e.pageX; defaults.mouseY = e.pageY; }); }; What appeared to be a reasonable fix was adding "html" as the selector, ex: $("html"). The fix works fine - except now when the user mouses off the page, it doesn't register the mouse position beyond the boundaries. When attempting to use the mouse position for a drag, for example, the amount of movement beyond the screen is really important. Anyone got any ideas? Thanks in advance.

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• How to get the quickfix timestamp?

  - by yves Baumes

  I've seen in quickfix doxygen documentation that it generates an utc timestamp as soon as it has received a FIX message from a socket file. Have a look in ThreadedSocketConnection::processStream(), it calls then m_pSession->next( msg, UtcTimeStamp() ); I would like to get that timestamp, because I need it to screen network and QuickFix lib latencies. I didn't find a way to get it from FixApplication::fromApp() callback or 'Log::onIncoming()' callback. As I am newbie with quickfix I would like to know if I missed something in the Quickfix documentation. Did anybody ever done that before? Of course there is other solutions, but for homogeneity with others market acces applications I maintain, I would prefer to avoid them. For instance, I would prefer not to modify QuickFix code source. And I would like to avoid re-write the application logic that quickfix provide me, quickfix helpping me only for message decoding.

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• Setting checkstate on a ListWidgetItem

  - by viraptor

  Hi, I'm trying to create a list of checkbox items that change the status on activation. I can connect the activate signal and everything seems to work, but changes on the screen. Am I missing some steps here? Here's the list creation: self.listField = QtGui.QListWidget(self) muted_categories = qb.settingsCollection['mutedCategories'].split('|') main_categories = sorted(set(qb.categoryTopNames.values())) for category in main_categories: item = QtGui.QListWidgetItem(category, self.listField) item.setFlags(QtCore.Qt.ItemIsUserCheckable | QtCore.Qt.ItemIsEnabled) if category in muted_categories: item.setCheckState(QtCore.Qt.Checked) else: item.setCheckState(QtCore.Qt.Unchecked) self.listField.connect(self.listField, QtCore.SIGNAL('itemActivated(QListWidgetItem*)'), self.doItemChangeState) and here's the handler: def doItemChangeState(self, item): """ invert the state of the activated item """ if item.checkState() == QtCore.Qt.Checked: item.setCheckState(QtCore.Qt.Unchecked) else: item.setCheckState(QtCore.Qt.Checked) I verified that the handler is fired after clicking - if I put prints there, it will alternate "checked" / "unchecked". What can I do to refresh the checkboxes themselves?

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• Android back button does not restart activity?

  - by Chris

  My app intiates an activity. On the click of a button, the app opens up the browser with a webpage. When I hit the back button, it comes back to my initial activity screen, but does not resume or restart the activity. When I put all the layout code and activity code in onResume instead of onCreate, the activity gets restarted. My question is whether this is the right way to go about it? Can I use onResume to draw my layout and initiate the activity, or is this poor design? When the browser fires up, does the initial activity forget its layout? Please let me know what you suggest. Thanks Chris

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• File upload help in JSP /Struts 1.2

  - by user57421

  Hi All, I have seen lot of reviews and have not been able to figure out how I can solve my problem.. Problem: Currently we have a page to upload the file from local machine to the respositry. It is currently using Struts upload. Now the current requirment is, Since users upload around 1gb of file, they are made to wait for a long time.. So they changed the requirment to browse the file and select the file to upload and hitting upload button should return to the control to next screen imediately.. But the upload process some how needs to be pushed at the backend and should do the upload and send out an email once the upload is complete.. I'm not able to figure out how to transfer the control to next page, when the upload is still running ... any idea or help will be appreicated.. Regards, Senny

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• What would you recommend to do simple 2D Graphics?

  - by Tom Ritter

  I want to build a program that will (as part of what it's doing) display lines organically growing and interacting horizontally across the screen. Here's a sample image, just imagine the lines sprouting from the left and growing to the right: The lines would look like the lines used on Google Maps Transit Overlay or OnNYTurf's transit pages. It's a personal project, so I'm open to just about any language and library combination. But I don't know where to start. What have you used in the past to create graphics that are similar to this? What would you recommend? I want it to run on Windows without any extras needed (.Net is fine), and it doesn't have to run elsewhere. I needs to run as an actual program, not javascript in the browser. There's obviously no 'right' answer to this, but the purpose isn't to start an argument about X better than Y but rather just find a list of graphics toolkits that do simple 2D graphics that people recommend because of their ease of use or community or whatever.

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• Create a thumbnail of a dwg in in a linux envrionment

  - by Kyle

  Creating a ruby on rails site that uses RMagick to create thumbnails for many types of images. RMagick cannot read dwg files however. I've tried a few things, looked into the Java library JDWGLib, which would probably allow me to write a converter, but it would be a total from the ground up solution, where I just need a thumbnail. Also considered using a viewer program to open the file in a remote X session and do a screen capture, however I'm not sure how I could ever guarantee that the viewer had completed opening when I took the screenshot. I'm not concerned with being able to manipulate the file other than to create the thumbnail. It is going to be used for commercial purposes, so any libraries used need to be compatible.

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