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  • Cocos2D - Detecting collision

    - by Grace
    I am a beginner in cocos2d and im facing a problem with detecting collision for my coins. Sometimes it works sometimes it doesn't. So basically, im creating a game which the user (ship) have to avoid the obstacles and collect coins on the way. The collision of the obstacle works well but not for the coins. I was thinking maybe the loops for creating many coins is the problem but im not sure. Can anyone help? My codes: - (void)update:(ccTime)dt{ double curTime = CACurrentMediaTime(); if (curTime > _nextBridgeSpawn) { float randSecs = [self randomValueBetween:3.0 andValue:5.0]; _nextBridgeSpawn = randSecs + curTime; float randX = [self randomValueBetween:50 andValue:500]; float randDuration = [self randomValueBetween:8.0 andValue:10.0]; CCSprite *bridge = [_bridge objectAtIndex:_nextBridge]; _nextBridge++; if (_nextBridge >= _bridge.count) _nextBridge = 0; [bridge stopAllActions]; bridge.position = ccp(winSize.width/2, winSize.height); bridge.visible = YES; [bridge runAction:[CCSequence actions: [CCMoveBy actionWithDuration:randDuration position:ccp(0, -winSize.height)], [CCCallFuncN actionWithTarget:self selector:@selector(setInvisible:)], nil]]; this is where i declare my coins (continued from the update method) int randCoin = [self randomValueBetween:0 andValue:5]; _coin = [[CCArray alloc] initWithCapacity:randCoin]; for(int i = 0; i < randCoin; ++i) { coin = [CCSprite spriteWithFile:@"coin.png"]; coin.visible = NO; [self addChild:coin]; [_coin addObject:coin]; } float randCoinX = [self randomValueBetween:winSize.width/5 andValue:winSize.width - (border.contentSize.width *2)]; float randCoinY = [self randomValueBetween:100 andValue:700]; float randCoinPlace = [self randomValueBetween:30 andValue:60]; for (int i = 0; i < _coin.count; ++i) { CCSprite *coin2 = [_coin objectAtIndex:i]; coin2.position = ccp(randCoinX, (bridge.position.y + randCoinY) + (randCoinPlace *i)); coin2.visible = YES; [coin2 runAction:[CCSequence actions: [CCMoveBy actionWithDuration:randDuration position:ccp(0, -winSize.height-2000)], [CCCallFuncN actionWithTarget:self selector:@selector(setInvisible:)], nil]]; } } this is to check for collision (also in the update method) for (CCSprite *bridge in _bridge) { if (!bridge.visible) continue; if (CGRectIntersectsRect(ship.boundingBox, bridge.boundingBox)){ bridge.visible = NO; [ship runAction:[CCBlink actionWithDuration:1.0 blinks:5]]; } } } //this is the collision for coins which only work at times for (CCSprite *coin2 in _coin) { if (!coin2.visible) continue; if (CGRectIntersectsRect(ship.boundingBox, coin2.boundingBox)) { NSLog(@"Coin collected"); coin2.visible = NO; } } } Thank you.

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  • How do I get a transparent page/screen in Firefox?

    - by s0dafire
    So, everytime I open a new tab (about:newtab) or just a white screen (about:blank). It would be better, Firefox displays my desktop instead (or what's 'behind' firefox) to work more efficient. I thought to try Firefox's Add-On 'Stylish' to solve this problem, but those scripts are only for Windows with Aero support. So... any other ideas how I get a transparent page/screen in Firefox? EDIT To clean things up: I don't want the whole window transparent!

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  • Why does Ubuntu really slow down the rest of my home network?

    - by tympaniplayer
    I have a ubuntu Dekstop and a Windows 7 Desktop. The windows 7 is connected via wireless adapter and the ubuntu dekstop is connected via ethernet. The wireless adapter is capable of 300Mbps link speed. When my ubuntu is connected to the interet, the network becomes very very slow. I have a 15 Mbps cable broadband connection. I have had many devices connected at one with no problem, yet this one connection seems to be wreaking havoc.

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  • Resize/Create a New Partition in GParted

    - by Charlie
    So I've been having some trouble recently with Ubuntu and decided it was time to switch to windows. But I have no ntfs partitions on my hard disk and GParted will not let me resize my one large partition (/dev/sda1) so that I can allocate some ntfs space to install windows on. Any help would be greatly appreciated, I've had this problem for quite some time now and it had just become one big headache. Thanks in advance!

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  • Bin Packing Problems: The SQL

    The 'bin packing' problem isn't just a fascination for computer scientists, but comes up in a whole range of real-world applications. It isn't that easy to come up with a practical, set oriented solution in SQL that gives a near-optimal result. Get smart with SQL Backup ProPowerful centralised management, encryption and more.SQL Backup Pro was the smartest kid at school. Discover why.

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  • iptables change destination address base on result from mysql

    - by user1812225
    I need to change destination address of tcp/ip packets based on result of execution mysql query... SELECT `score` FROM `reputation` WHERE `ip` = packet.source_ip if (score < a) then packet.destination_ip = ... else packet.destination_ip = ... What ways of solving this problem do you see? Thanks. P.S. this is important that destination host knows REAL ip address where packet came from, not IP address of firewall.

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  • How can I force WiFi connection to only use ipv4?

    - by krasilich
    I have Broadcom bcm43224 wifi card with proprietary broadcom sta driver. At home wifi connection works well, but in the office when I ping some resource there is a lot of loss packets and I cant browse websites. I have tried another way to check internet connection - download file with wget. wget google.com - very slow speed wget -4 google.com - normal speed So, it seems that the problem is with the ipv6 configuration at the office, can I force my wifi connection to use only ipv4 and completely ignore ipv6 ?.

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  • execute a shell script when USB is connected

    - by Null pointer
    I am working on an application which deals with all kinds of USB storage devices(such as taking backup, updating DataLogFile etc) My problem is : I want to write a shell script which is stored in this USB drive(As usb is at center of my project so USB is going to be same but PC's will change) AND this script should be executed as soon as the USB drive is connected to my Linux system.I will not need any kind of "root" or "sudo" permissions for other tasks which I am going to do in this shell script.

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  • Yola Website Builder Review

    A website is necessary for any small business that wants to be taken seriously, but getting it out there can be a problem, especially for the technologically challenged small business owner. With easy-to-use online tools combined with domain name registration and web hosting, Yola provides a solution for anyone who can't build their own site and can't afford to hire someone to do it for them. When Yola says their online website builder is easy to use, they aren't kidding.

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  • Confusing Callbacks

    - by SullY
    I'm trying to programm now a "game", and started with the EmptyProject that's provided by the DirectX SDK. The problem is that the Callbacks are confusing me. Can please someone explain me? Edit: DXUTSetCallbackD3D9DeviceAcceptable( IsD3D9DeviceAcceptable ); // not sure but I think that's the caps? DXUTSetCallbackD3D9DeviceLost( OnD3D9LostDevice ); DXUTSetCallbackDeviceChanging( ModifyDeviceSettings ); DXUTSetCallbackFrameMove( OnFrameMove );

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  • No Sound in 12.04 on Acer TimelineX 3830TG

    - by Fawkes5
    When i first installed ubuntu 12.04 everything worked fine. All of a sudden my sound has stopped working!! This has happened before [like 2 days ago], however the next day it started working again. That may happen again...[I've already rebooted 5 times] My Sound Card is a HDA intel PCH My Sound Chip is Intel CougarPoint HDMI My machine is an Acer TimelineX 3830TG, heres my lcpci output 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) 00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04) 00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4) 00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b4) 00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 3 (rev b4) 00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b4) 00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 04) 00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04) 01:00.0 VGA compatible controller: NVIDIA Corporation GF108 [GeForce GT 540M] (rev ff) 02:00.0 Ethernet controller: Atheros Communications Inc. AR8151 v2.0 Gigabit Ethernet (rev c0) 03:00.0 Network controller: Atheros Communications Inc. AR9287 Wireless Network Adapter (PCI-Express) (rev 01) 04:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5116 PCI Express Card Reader (rev 01) 05:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04) I'm running a dual boot with Windows 7, sound always works there. I've tried loading earlier kernels [3.2.0 ] but that hasn't helped. I've tried playing with alsamixer, unmuting and raising volume, doesn't work I've tried playing with pauvcontrol, doesnt work. Althought, strangely, when i play a song, under output i can see a bar moving implying that something is working, just the sound isn't getting through my speakers. Thus it might be a hardware problem. I've tried unistalling and reinstalling pulsaudio annd alsamixer, doesn't work [maybe made it worse...]. I've heard reverting back to kernel 3.0... works, but i'm reluctant to try that[i dont know much about kernels]. Thank you. Please tell me what other information you need. EDIT: My audio has started working again after another reboot. However this time im not connected to my external audio on startup. I will see if this is the issue next time i'm at home Edit: Connecting to external audio is not the problem.

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  • What research topics can I tackle with only a year of experience?

    - by rapidash
    I've been looking to get into research, but I'm not sure I can do when I've only taken two quarters of Computer Science. I go to the University of Washington, if it's relevant. This is a page on research. I find that I'm not able to judge what is possible for a first year looking through the website. Most things look intimidating, but I'm sure I could somewhere on some problem if I actually attacked it.

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  • Are non-modified FILESTREAM files excluded from DIFFERENTIAL backups?

    - by TiborKaraszi
    Short answer seems to be "yes". I got this from a forum post today, so I thought I'd test it out. Basically, the discussion is whether we can somehow cut down backup sizes for filestream data (assumption is that filestream data isn't modified very frequently). I've seen this a few times now, and often suggestions arises to somehow exclude the filestream data and fo file level backup of those files. But that would more or less leaves us with the problem of the "old" solution: potential inconsistency....(read more)

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  • Biztalk :Tagidentifier for optional records

    - by Mchandak
    I am sure many of us must have faced this issue.Problem:My flat file schema has an optional  record  and marked with a tagidentifier. we would think that the input message without that optional record will pass the schema validation. But by default Biztalk throws an error about the missing record if we try to 'Validate the instance' in the Biztalk mapper.Resolution:On the schema node, set Parser Optimization to “Complexity” instead of thedefault "Speed" optimization.

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  • How to stop Office 2010 changing " and ' to smart quotes

    - by fatherjack
    I have recently upgraded to Office 2010 at work and there are a few things that are a real problem for me. As a T-SQL developer and SQL Server DBA I copy and paste code to and from various applications and if Word gets involved it can has disastrous consequences. There is an option that appears to be defaulted to "on" that changes a straight quote to what Word describes as a smart quote - see the image below. Note - the single quote suffers from the same effect. Now, getting to the point that...(read more)

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  • .NET Developer Basics – Recursive Algorithms

    Recursion can be a powerful programming technique when used wisely. Some data structures such as tree structures lend themselves far more easily to manipulation by recursive techniques. As it is also a classic Computer Science problem, it is often used in technical interviews to probe a candidate's grounding in basic programming techniques. Whatever the reason, it is well worth brushing up one's understanding with Damon's introduction to Recursion.

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  • w3wp.exe (ASP .Net) eating memory (2 replies)

    Hello, i'm on a VPS with Windows 2003 x64 (IIS 6.0 so) and i have a serious problem with w3wp.exe. It starts from 60 Mb and then grows until the whole avaiable RAM is used. http://img32.imageshack.us/img32/4120/w3wpgraph.png Here's an example image showing w3wp.exe private bytes and Gen 0 Heap size. They seems related, but if I use &quot;.NET CLR Memory/# Bytes in all Heaps &quot; it is much lower than priv...

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  • How to add Rhytmbox controls to sound menu?

    - by Ridvan Çoban
    I noticed that i cannot close rhythmbox by clicking close from the window. Checked this thread : Checked this thread Rhythmbox still plays songs after exit and tried disabling related plugins but this didnot solve this problem. Then i wanted to stop music from the sound menu on the panel. But when on Gnome, sound menu on the panel does not have rhythmbox shortcuts while on Ubuntu or ubuntu 2d it has. How can i add rhythmbox to sound menu?

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  • Are there specific benefits to using XNA for 2D development if you don't plan on releasing on xbox/windows phone?

    - by ssb
    I've been using XNA for a while to tinker with 2D game development, but I can't help but feel constrained by the content pipeline when targeting PC only. Things like no vector fonts or direct use of graphics files make it a pain while other frameworks do these things with no problem. I like XNA because it's robust and has a lot of support, but what are the specific benefits that I'd get developing exclusively for PC, if there are any at all?

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  • xbindkeys slow on Ubuntu 13.10

    - by 3l4ng
    I am using Ubuntu 13.10 64 bit on an Intel 15 with 4GB of RAM. I used xbindkeys for custom keyboard shortcuts in Ubuntu 13.04 because it was easy to configure with the GUI xbindkeys-config. Now I have setup the same on Ubuntu 13.10, and even a simple operation like opening a file using gedit seems to run slow. Reinstalling xbindkeys does not seem to solve the problem. Anyone has any ideas on what could be done, or any alternatives that are easy to configure?

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  • Cant burn the iso file on disc and usb will not startup

    - by Jason
    I am having very big problems trying to get this going for my old laptop. I tried burning the iso image with 5 different iso burning programs and none of the disks worked none started up. Then I tried to do the USB way used the program that puts it on the usb for you it starts up on my laptop fine but will not start up on my compaq presario 2178cl. If any1 can help me with this problem I would be much appreciative ty for your time.

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  • No screens found error with glasen/intel-driver

    - by pgcudahy
    A lot of people seem to have had success in getting hardware acceleration for intel 82852/855GM chipsets with the ppa:glasen/intel-driver. I've tried it on my Motion Computing M1400 but get a "no screens found" error. I've found one person out there with a similar problem who seemed to fix it, but his solution is in German and seems to involve recompiling the kernel (it's at the bottom of the comments). Anyone able to see how to fix this without such drastic measures?

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  • FairSearch : Nokia et Oracle rejoignent la coalition anti-Google, qui porte sa lutte contre l'abus de position dominante aux mobiles

    FairSearch : Nokia et Oracle rejoignent la coalition anti-Google Qui l'accuse d'abus de position dominante FairSearch, l'organisation vouée d'après ses membres à défendre la concurrence sur internet, compte désormais dans ses rangs le fabricant de téléphones mobiles Nokia, l'éditeur de solutions d'entreprise Oracle et le site d'enchères en ligne Allegro. [IMG]http://idelways.developpez.com/news/images/google-problem.jpg[/IMG] En alliance avec d'autres entreprises, dont Microsoft, ces membres accusent Google d'abus de position dominante et portent leur combat sur le terrain du mobile avec l...

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  • Runnin Framework 4.0 with Powershell

    - by Mike Koerner
    I had problems running scripts with Framework 4.0 assemblies I created.  The error I was getting was  Add-Type : Could not load file or assembly 'file:///C:\myDLL.dll' or one of its dependencies. This assembly is built by a runtime newer than the currently loaded runtime and cannot be loaded. I had to add the supported framework to the powershell.exe.config file.<supportedRuntime version="v4.0.30319"/>I still had a problem running the assembly so I had to recompile and set "Generate serialization Assembly" to off.

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