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• iPad Impressions

  - by Aaron Lazenby

  So, I spent some quality time with my new iPad on Saturday. Here are things I like/don't like: -- Don't like that it has to sync with iTunes before you use it: I was traveling and left my laptop at home thinking I'd use this iPad thing instead. But the first thing it asked me to do is connect it to a laptop. Ugh. Had to borrow my mother-in-law's MacBook Pro just to get the iPad rolling. -- Like that magazines and newspapers are forever changed: And I think for the better...it's why I bought this thing in the first place. I spent significant time with The New York Times, The Wall Street Journal, Time Magazine and Popular Science on the iPad. Sliding stories around, jumping from section to section, enlarging images = all excellent experiences. Actually prefer iPad magazine to print, which will require a major shift in editorial strategy, summed up by Popular Science's Mark Jannot in his editor's note "What defines a magazine? Curated expertise--not paper." -- Don't like the screwy human factors: I actually enjoy the virtual keyboard (although I think I'm in the minority), but you have to hunch over to look down at what you're typing. Bad technology ergonomics have already jacked my body in various ways. The iPad just introduced a new one.-- Like the multitouch: In fact, it's awesome. Hands down. Probably will have the most lasting impact on the personal computing industry as a whole.   -- Don't like that it's heavy: If you plan to read in bed, you'd better double up on the creatine and curls. Holding this thing up on your own gets pretty uncomfortable. -- Like the Netfilx app: I wanted to watch "The Big Lebowski," so I did. That is all. -- Don't like that people feel 3G is necessary: For $30 a month? Please. I'm already accustomed to limiting my laptop internet use to readily available free wi-fi. Why do I expect anything different with the iPad? Most anyplace I have time to sit and read/use a computer (cafe, airport, you house, library, etc.) has free wi-fi. I can live without web surfing in your car. That's what the iPhone is for. -- Don't like that not everyone was ready in day one: I'm looking at you Facebook. No iPad app for launch? Lame. iPhone apps scaled-up to work on the iPad look grainy and cheap. Not a quality befitting this beautiful $700 piece of glass.Verdict: I'm bringing it to COLLABORATE 08 and seeing if I can go the whole week using only the iPad. If I can trade this thing for my laptop, I know it's a winner. For now, I'm enjoying Popular Science.

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• How do I repeat a texture with GLKit?

  - by Synopfab

  I am using GLKit in order to show textures on my project. The code is like this: -(void)setTextureImage:(UIImage *)image { NSError *error; texture = [GLKTextureLoader textureWithCGImage:image.CGImage options:nil error:&error]; if (error) { NSLog(@"Error loading texture from image: %@",error); } } effect.texture2d0.envMode = GLKTextureEnvModeReplace; effect.texture2d0.target = GLKTextureTarget2D; effect.texture2d0.name = texture.name; glEnableVertexAttribArray(GLKVertexAttribTexCoord0); glVertexAttribPointer(GLKVertexAttribTexCoord0, 2, GL_FLOAT, GL_FALSE, 0, self.textureCoordinates); Now I want to repeat this texture on a rectangle. Is there any way use GLKit for this behavior? I've tried to use opengl function in addition to the glkit ones, but it raises errors: glEnable(GL_TEXTURE_2D); glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT ); glBindTexture( GL_TEXTURE_2D, texture.name ); 2011-11-09 20:10:28.614 **[16309:207] GL ERROR: 0x0500 2011-11-09 20:10:30.840 **[16309:207] Error loading texture from image: Error Domain=GLKTextureLoaderErrorDomain Code=8 "The operation couldn’t be completed. (GLKTextureLoaderErrorDomain error 8.)" UserInfo=0x68545c0 {GLKTextureLoaderGLErrorKey=1280, GLKTextureLoaderErrorKey=OpenGL error}

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• Video: iPhone 4 Advertisement

  - by Gopinath

  Join us on Facebook to read all our stories right inside your Facebook news feed.

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• Sprite Kit - containsPoint for SKPhysicsBody?

  - by gj15987

  I have a ball bouncing around the screen. I can pick it up and drag it onto a "bucket". When my touches finish, I use the containsPoint function to check and see if I have dropped the ball onto the bucket. This works fine, however, I actually want to check whether the ball is dropped onto the bucket node's physics body because my "bucket" is actually just an oval, and so I've applied a physics body which is the same shape as the oval, so that the white space around the oval isn't included in the physics simulation. I can't seem to find a "containsPoint" function for physics bodies. Can anyone advise on how I'd check for this? To summarise, I want to drop a node, onto a specific part of another node (or its physics body) and trigger an event. Thanks in advance.

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• Jailbroken iPad 3G Is Capable of Sending SMS Text Messages

  - by Gopinath

  Wow! the iPhone Dev Team guys are crazy hackers, they don’t leave any iPhone/iPad OS without jail breaking it. Today the iPhone Dev team cracked the operating system of  iPad 3G and managed to send SMS from it using command line terminal interface. Here is the video demonstration of iPad 3G sending SMS Even though there is no user interface for sending SMS, this is a great achievement for the iPad jail breaking community. So what is next to come on iPad? Phone calls! Join us on Facebook to read all our stories right inside your Facebook news feed.

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• How to Switch Mac OS X to Use OpenDNS or Google DNS

  - by The Geek

  Are you still using your service provider’s DNS servers? If you’re on Comcast, you probably noticed their DNS servers completely died recently, taking down the internet—but anybody using the more reliable OpenDNS or Google DNS had no problems. Here’s how to set it up on your Mac OS X computer. There’s lots of other reasons to use OpenDNS or Google DNS other than just their rock-solid reliability—they are often much faster than your ISP’s DNS server, and in the case of OpenDNS, there’s loads of extra features like content filtering, typo correction, anti-phishing, and child protection controls. If you’re using Windows, be sure and check out some of our other articles on the subject: Speed Up Your Web Browsing with Google Public DNS Easily Add OpenDNS To Your Router Protect Your Kids Online Using Open DNS Otherwise, keep reading for how to set it up on your Mac. Latest Features How-To Geek ETC The Complete List of iPad Tips, Tricks, and Tutorials The 50 Best Registry Hacks that Make Windows Better The How-To Geek Holiday Gift Guide (Geeky Stuff We Like) LCD? LED? Plasma? The How-To Geek Guide to HDTV Technology The How-To Geek Guide to Learning Photoshop, Part 8: Filters Improve Digital Photography by Calibrating Your Monitor Exploring the Jungle Ruins Wallpaper Protect Your Privacy When Browsing with Chrome and Iron Browser Free Shipping Day is Friday, December 17, 2010 – National Free Shipping Day Find an Applicable Quote for Any Programming Situation Winter Theme for Windows 7 from Microsoft Score Free In-Flight Wi-Fi Courtesy of Google Chrome

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• App Store: Profitability for Game Developers

  - by Bunkai.Satori

  Recent days, I've been spending significant time in discovering chances of profitability of AppStore for developers. I have found many articles. Some of them are highly optimistic, while other are extremely skeptical. This article is extremely skeptical. It even claims to have backed its conclusions by objective sales numbers. This is another pesimistic article saying that games developed by single individuals get 20 downloads a day. Can I kindly ask to clarify from business viewpoint whether average developers publishing games and software on AppStore can cover their living expenses, even, whether they can become profitable? Is it achievable to generate revenues of 50.000 USD yearly on AppStore for a single developer? I would like to stay as realistic as possible. Despite the question might look subjective, a good business man will be able to esitmate chances for profitability and prosperity within AppStore.

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• App Store: Profitability for Game Developers

  - by Bunkai.Satori

  Recent days, I've been spending significant time in discovering chances of profitability of AppStore for developers. I have found many articles. Some of them are highly optimistic, while other are extremely skeptical. This article is extremely skeptical. It even claims to have backed its conclusions by objective sales numbers. This is another pesimistic article saying that games developed by single individuals get 20 downloads a day. Can I kindly ask to clarify from business viewpoint whether average developers publishing games and software on AppStore can cover their living expenses, even, whether they can become profitable? Is it achievable to generate revenues of 50.000 USD yearly on AppStore for a single developer? I would like to stay as realistic as possible. Despite the question might look subjective, a good business man will be able to esitmate chances for profitability and prosperity within AppStore.

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• How to move a sprite on a slope in chipmunk Spacemanager

  - by Anil gupta

  I have used one polygon shape image (terrain) in my game. It's just like a mountain, and now I want to move the tanker on a mountain path from one side to the other and then turn around at the edge of the screen and go back. I don't understand the method to move the tanker on the slope (image) path in chipmunk spacemanager. When collision detection happens like that, if any bomb falls on the slope (image of mountain) then I want to do a little damage to the slope (image of mountain) like this video.

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• Nostalgia Lane: Steve Jobs Introduces the iPhone in 2007 [Classic Video]

  - by Asian Angel

  With the five year anniversary of the iPhone approaching, here is a look back at when it all started with this classic introductory presentation by Steve Jobs. Steve Jobs introduces iPhone in 2007 [YouTube] How to Banish Duplicate Photos with VisiPic How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It?

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• Admob banner not getting remove from superview

  - by Anil gupta

  I am developing one 2d game using cocos2d framework, in this game i am using admob for advertising, in some classes not in all classes but admob banner is visible in every class and after some time game getting crash also. I am not getting how admob banner is comes in every class in fact i have not declare in Rootviewcontroller class. can any one suggest me how to integrate Admob in cocos2d game, i want Admob banner in particular classes not in every class, I am using latest google admob sdk, my code is below: Thanks in advance ` -(void)AdMob{ NSLog(@"ADMOB"); CGSize winSize = [[CCDirector sharedDirector]winSize]; // Create a view of the standard size at the bottom of the screen. if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad){ bannerView_ = [[GADBannerView alloc] initWithFrame:CGRectMake(size.width/2-364, size.height - GAD_SIZE_728x90.height, GAD_SIZE_728x90.width, GAD_SIZE_728x90.height)]; } else { // It's an iPhone bannerView_ = [[GADBannerView alloc] initWithFrame:CGRectMake(size.width/2-160, size.height - GAD_SIZE_320x50.height, GAD_SIZE_320x50.width, GAD_SIZE_320x50.height)]; } if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) { bannerView_.adUnitID =@"a15062384653c9e"; } else { bannerView_.adUnitID =@"a15062392a0aa0a"; } bannerView_.rootViewController = self; [[[CCDirector sharedDirector]openGLView]addSubview:bannerView_]; [bannerView_ loadRequest:[GADRequest request]]; GADRequest *request = [[GADRequest alloc] init]; request.testing = [NSArray arrayWithObjects: GAD_SIMULATOR_ID, nil]; // Simulator [bannerView_ loadRequest:request]; } //best practice for removing the barnnerView_ -(void)removeSubviews{ NSArray* subviews = [[CCDirector sharedDirector]openGLView].subviews; for (id SUB in subviews){ [(UIView*)SUB removeFromSuperview]; [SUB release]; } NSLog(@"remove from view"); } //this makes the refreshTimer count -(void)targetMethod:(NSTimer *)theTimer{ //INCREASE OF THE TIMER AND SECONDS elapsedTime++; seconds++; //INCREASE OF THE MINUTOS EACH 60 SECONDS if (seconds>=60) { seconds=0; minutes++; [self removeSubviews]; [self AdMob]; } NSLog(@"TIME: %02d:%02d", minutes, seconds); } `

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• How do I break an image into 6 or 8 pieces of different shapes?

  - by Anil gupta

  I am working on puzzle game, where the player can select an image from iPhone photo gallery. The selected image will save in puzzle page and after 3 second wait the selected image will be broken into 6 or 8 parts of different shapes. Then player will arrange these broken parts of images to make the original image. I am not getting idea how to break the image and merged so that player arrange the broken part. I want to break image like this below frame. I am developing this game in cocos2d.

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• Xcode workspace with Unity3D as a sub-project?

  - by Di Wu

  Let's say we're developing a 2D game with Cocos2d-iPhone and UIKit and CoreAnimation. But we're also considering leveraging the 3D capabilities of Unity 3D. Is it possible that we add the Unity3D-generated Xcode project as a sub-project into the workspace and expose the 3D UI element as some kind of UIView subclass so that the native UIKit and CoreAnimation code could use them without the need to mess up with their underlying Unity3D implementation?

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• Javascript autotab function not working on iPad or iPhone [migrated]

  - by freddy6

  I have this this piece of html code: <form name="postcode" method="post" onsubmit="return OnSubmitForm();"> <input class="postcode" maxlength="1" size="1" name="c" onKeyup="autotab(this, document.postcode.o)" /> <input class="postcode" maxlength="1" size="1" name="o" onKeyup="autotab(this, document.postcode.d)" /> <input class="postcode" maxlength="1" size="1" name="d" onKeyup="autotab(this, document.postcode.e)" /> <input class="postcode" maxlength="1" size="1" name="e" /> <br /> </form> which uses this javascript: <script> /* Auto tabbing script- By JavaScriptKit.com http://www.javascriptkit.com This credit MUST stay intact for use */ function autotab(original,destination){ if (original.getAttribute&&original.value.length==original.getAttribute("maxlength")) destination.focus() } </script><script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js" type="text/javascript"></script> <script src="js/scripts.js" type="text/javascript"></script> <script type="text/javascript"> function OnSubmitForm() { if(document.postcode.operation[0].checked == true) { document.postcode.action ="plans.php"; } else if(document.postcode.operation[1].checked == true) { document.postcode.action ="plans_gas.php"; } else if(document.postcode.operation[2].checked == true) { document.postcode.action ="plans_duel.php"; } return true; } </script> As soon a you enter in one character into one of the text boxes it automatically tabs across the the next text box. This works fine on a pc or mac and on safari and also in all other browsers. But when viewing the webpage on an iPad or iPhone (using safari) the auto tabbing function does not work. Any ideas on how to make the auto tab work on these mobile devices?

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• Cocos2d: Tongue effect like in Munch Time

  - by Joey Green

  I'm wanting to do a tongue effect for my character like the one in Munch Time( shown in pic ). The player does some action and his tongue attaches to the nearest platform. I'm thinking this is simply a get distance to platform and keep player at that distance as he moves back and forth giving him the swinging effect. For the drawing, I'm wanting the same effect where the tongue sprite is the skinniest in the middle of the distance between the character and platform. I know how to do this in a shader( I'm using cocos2d v2 btw ), but I'm wondering if there is some built-in functionality to allow me to do this. First, is this the right approach using distance? Second, is their an easy way to do the tongue sprite effect without a shader? Third, I'm wanting to have the player spring up at will in the direction of the platform. I'm using Box2D. Would there be a way to do this using force's or would it be easier to write my own code?

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• Banshee music file copy to Mac iPhone 4s ios5.1 not permanent

  - by user95736

  In Ubuntu 12.04 - When I drag .mp3 files from Banshee 2.6 to my Mac-formatted iPhone 4s ios5.1: a. Banshee says it's syncing with the phone, updating the media database, and the filecount on the phone is incremented; b. The files show up under the device in Banshee and I can play them; c. I can see them on the iPhone in a file browser; d. I can navigate to the iPhone filesystem in a terminal and create a file, so I know I have write permissions. When I disconnect the device in Banshee, it again tells me it's syncing the phone and updating the media database, but I can't find the songs on the phone in iTunes - they are not there when I reconnect the phone to my computer. Am I just being deceived by gvfs? I haven't been able to find a recent post indicating the status of syncing ios5.x devices with Banshee, RhythmBox, etc... Can someone tell me if this should work? Also, I wonder if my iPhone needs to be formatted/initialized by iTunes for Windows, since it has been managed on a Mac? I solved a syncing problem with an older ipod classic which had been managed by iTunes on a Mac, by re-initializing it under iTunes for Windows - perhaps an hfs+ issue. Thanks for any help.

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• Mobile Apps for Hospitals?

  - by Joey Green

  I currently work for a pretty large hospital and have been dabbling in iPhone development for a couple years. The CEO is wanting to get together a group to see what mobile technology we could create. I was contacted to be the main developer. I wanted to gather some ideas of what kind of mobile apps people have seen deployed in hospitals. Not necessarily medical apps that you can get on the app store, but rather apps built specifically for a hospital. Any ideas? If this is not the appropriate forum for a question like this, can someone point me to a forum where it would be appropriate?

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• Swinging a sword in Xcode with Sprite Kit

  - by jking14

  I'm working on making an RPG in Xcode, and I'm having a major gameplay issue when it comes to having my character swing his sword in a way that is realistic and gameplay compatible. Right now, when the player taps the screen and the sword is in one of the player's hand, it rotates the upright sword 90 degrees. The sword which is a parent of the player floats in front of the player because of a collision issue I'm looking for any advice anyone can give on how to add a sword to the game and have it swing in a way that looks somewhat realistic and can damage enemies that are more than a single pixel away from the player

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• Wait till all CCActions have completed

  - by tGilani

  I am developing a simple cocos2d game in which I want to animate two CCSprites simultaneously, and for this purpose I simply set CCActions on respective `CCSprite's as follows. [first runAction:[CCMoveTo actionWithDuration:1 position:secondPosition]]; [second runAction:[CCMoveTo actionWithDuration:1 position:firstPosition]]; Now I want to wait till the animations are complete, so I can perform the next step. How should I wait for these animations to finish? There are actually two method calls, the first one animates the objects via the code above and second call does the other animation. I need to delay the second method call until the animations in first are complete. (I would not like to use CCCallFunc blocks as I want to call the second method from the same caller as the first one.

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• Just How do Macs and PCs Differ?

  - by Akemi Iwaya

  The eternal debate…Macs or PCs. Both have loyal fan bases that love each for various reasons, but if you look past that, what is it that really makes them different from each other? Professor Tom Rodden explains the differences between PCs and Macs in today’s video from Computerphile. Note: Today’s video classifies computers running Windows and/or Linux as PCs. Just How do Macs and PCs Differ? – Computerphile [YouTube]

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• Bodies do not stay sticked together by joint in retina display

  - by Mike JM

  I'm rehearsing on Box2D revolute joints. Everything's going pretty well except for one thing. For some reason bodies joined together with revolute joints do not stay sticked, they start getting apart from each other from the app start when I run it on retina device or simulator. On non retina device it works just fine, as expected. Here's the screenshot of the non-retina version: And here's the behavior when I run the same app on retina device/simulator: I'm taking content scale factor into account.

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• Mystical Energy Wallpaper Collection for Your iPad

  - by Akemi Iwaya

  The air starts to crackle around you as bright light appears, serving as a portal that transports you into a whole new and strange world beyond your imagination. Travel to new realms of thought, emotion, and energy on your iPad’s screen with the first in our series of Mystical Energy Wallpaper collections. Mystical Energy Series 1 Note: Click on the pictures to view and download the full-size versions at their individual homepages. The images shown here are in thumbnail format.                     

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• Which data structure should I use for dynamically generated platforms?

  - by Joey Green

  I'm creating a platform type of game with various types of platforms. Platforms that move, shake, rotate, etc. Multiple types and multiple of each type can be on the screen at once. The platforms will be procedural generated. I'm trying to figure out which of the following would be a better platform system: Pre-allocate all platforms when the scene loads, storing each platform type into different platform type arrays( i.e. regPlatformArray ), and just getting one when I need one. The other option is to allocate and load what I need when my code needs it. The problem with 1 is keeping up with the indices that are in use on screen and which aren't. The problem with 2 is I'm having a hard time wrapping my head around how I would store these platforms so that I can call the update/draw methods on them and managing that data structure that holds them. The data structure would constantly be growing and shrinking. It seems there could be too much complexity. I'm using the cocos2d iPhone game engine. Anyways, which option would be best or is there a better option?

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• Bad FPS for smaller size (OpenGL ES with SDL)

  - by ber4444

  If you saw my other question, well, there is still a little problem: Click here to watch on youtube Basically, the frame rate is very bad on the actual device, where for some reason the animation is scaled (it looks like the left side on the video). It is quite fast on the simulator where it is not scaled (right side). For a test, I submitted this new changeset that hard-codes the smaller size (plus increases the point size for HII regions to make the dust clouds more visible), and as you see in the video, now it is slow even in the simulator (left side shows the small size, right side shows the original size -- otherwise the code is the same). I'm clueless why it's soooo slow with a smaller galaxy, in fact it should be FASTER. As for general speed optimization (which is not strictly part of my question but is closely related to it, esp. if we need a workaround to speed things up), some initial ideas: reducing the number of items drawn may affect the appearance negatively but screen resolution could be reduced there are too many glBegin(GL_POINTS)/glEnd() blocks, we could draw more than just a single star at once

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• How do I get the compression on specific dynamic body

  - by Mike JM

  Sorry, I could not find any tag that would suit my question. Let me first show you the image and then write what I want to do: I'm using box2D. As you can see there are three dynamic bodies connected to each other (think of it as a table from front view).The LEG1 and LEG2 are connected to the static body. (it's the ground body). Another dynamic body is falling onto the table. I need to get the compression in the LEG1 and LEG2 separately. Joints have GetReactionForce() function which returns a b2Vec, which in turn has Length() and LengthSqd functions. This will give the total sum of the forces in any taken joint. But what I need is forces in individual bodies that are connected with joints. Once you connect several bodies with a single joint it again will show the sum of forces which is not useful.Here's the case iI'm talking about:

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