iOS is an operating system for mobile devices created by Apple Inc. It runs on the iPhone, iPad, and iPod touch.

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Xcode on Hackintosh (under VM)

Should I be pessimistic about the iOS game development under VM? A virtualized environment will run on AMD (4-core 2.8 ghz Phenom II)/ATI/Linux/VMware host. Not talking about any 3D engines, may ...
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Is it true that to test a game on the iPhone or iPad, we either need to pay $99 to join Apple Developer program, or jailbreak the iPad?

To test a program for iPhone or iPad, seems like the only way is to join the Apple Developer program and pay $99 per year? Can you also jailbreak the iPhone or iPad and be able to test it?
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matrix to rotate a vector to a known arbitrary axis

Let's say I have a vector V (v.x,v.y,v.z) which is normalized and points somewhere in 3d space. And that I have another vector Z of (0,0,1). Knowing only these two things I'm looking for a ...
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How to find collision detection side between two objects?

I am using box2D and I have two objects, one is bouncy ball and the other one is block. I'd like to find which side of the block is collided with, so I can only make the ball bounce when it hits the ...
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167 views

Augmented reality on Mobile platform - iOS

Is there a way that we can control the iOS device camera to an extent what colors it sees, what shapes it sees ? etc I'm speaking about the ability to read information before the image is captured. ...
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iOS persistant storage with update function

im developing a game which has different levels and i need to store all levels and its elements (position, image, sounds,..) into a file/database. The levels will be updated so i need a function that ...
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Restricting joystick within a radius of center

I'm using Unity3d iOs and am using the example joysticks that came with one of the packages. It works fine but the area the joystick moves in is a rectangle which is unintuitive for my type of game. I ...
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How can I position a sprite in the same spot across different screen sizes?

Taking into account the multitude of screen sizes and resolutions, is there a way I can position a sprite so it's at roughly the same spot on every iOS device? Doesn't matter if you are using ...
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Can I make a flash file I developed to run on Androis / IOS?

I've created a simple game using ActionScript 3.0 and Adobe Flash CS5. Is there any way to run this creation on Android / Apple IOS ? (Even if so, I still have no Idea how to work with "touch" ...
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3d transformation of game world keeping gameplay 2d - COCOS2D 2.0

Using: COCOS2D + iOS. I want to rotate the game world, may be loading another .tmx file for another dimensions when user want to switch dimension. the effect what I am looking for is something like ...
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Multiplayer game sdk for ios and android [closed]

I am working on a multiplayer game supporting Android and IOS. For IOS Game-Center seems promising. But its IOS only. OpenFeint could be a option, but now GREE has stopped supporting it. Is there ...
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416 views

2D Physics in a networked game (iOS)?

I am researching the possibilities for a new iOS game. It's going to be a run-n-gun type platformer, and I'm looking into the possibility of co-op multiplayer. The game itself wouldn't be very ...
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Cocos2D - How to move sprite on the X axis, using the accelerometer

I'm trying to make a vertical shooter, using Cocos2D and a few tutorials. Unfortunately, most tutorials only show how to make an horizontal shooter. Still, I tried to adapt the code from a horizontal ...
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841 views

RTS game engine for iOS/iPhone

Anyone know any free or non-free RTS engine that can be used for iOS game development?
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model view projection multiplication order

I'm debugging a lighting problem where the camera position is effecting the diffused lighting component on my 3d model. In researching my problem I went back and am reading over all the how to ...
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Can we use credit card/prepaid voucher payment systems in Android and iOS?

We already have a credit card gateway with a local bank. We also have a prepaid card voucher in the market. In our game, a user will create an account within our portal. The user will "recharge" his ...
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Is it legal to allow users to install replacement game data containing real-world personalities?

I'm thinking of developing a game for iOS which will ship with fake sports personality data. So, for argument sake, let's say fake football player names. On OS X and Windows games like this often ...
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Adding an angle variance to a 3d vector

I am converting a particle emitter from 2d to 3d. In the 2d system the original coder used a random angle variance and added it to the angle. So it would be something like: thisAngle = emitterAngle ...
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112 views

Designing a four-directional movement control

I'm developing an RPG for iOS. Currently, I plan my controls to look like this: So the user can interact with objects, people, etc. by tapping on the right side of the screen, and moves by swiping ...
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Coordinate and positioning problem on iOS with cocos2d-x

I'm using cocos2d-x alongside with Marmalade and running some tests and tutorials before starting an actual project with them. So far things are working reasonably well on the windows simulator, ...
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107 views

in an ios open gl es 2 game - is it better to use a few large texture atlas or many small textures

I'm working on new game, this time moving to more 3d objects and open gl es 2. Previous (successful) game was open gl es 1 and mostly 2d. For es 2 I'm developing my own 3d engine. My 3d artist ...
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3answers
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Wait till all CCActions have completed

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 ...
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Help retrieving/sending data to/from a server on iOS (C#, Mono, .Net)

I'm sorry in advance if this is a silly question. I'm currently working on getting something running where I can grab information from a server. My goal is to make the data I'm retrieving (or ...
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723 views

OpenGL ES 2 - glSwapBuffers?

this is what i do to blit FBO onto screen in ViewController: [m_Context presentRenderbuffer:GL_RENDERBUFFER]; but i need something like glSwapBuffers, so that i can call it somewhere from the ...
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Missing z-axis rotation for transforming between two vectors

I'm trying to rotate a cube so that it's facing up, but am getting hung up on the final implementation details. It now reliably will rotate the x,y axis to the correct side, but the z-axis is never ...
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266 views

Is there an AIR native extension to use GameCenter APIs for turn-based games?

I'm planning a turn based game using the iOS 5 GameCenter (GameKit) turn-based functions. Ideally I would program the game with AIR (I'm a Flash dev), but so far I can't seem to find any already ...
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Securing a TCP connection on iOS for an MMO

I am currently building an iOS MMO and I'm leaning towards using TCP as my networking protocol over the higher level HTTP (for the speed difference and the fact that it does not require the client to ...
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3answers
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How do I repeat a texture with GLKit?

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 ...
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754 views

What is the best way to store meshes or 3d models in a class

I am wondering, how I should store my mesh into memory after loading it from whatever file. I have Questions floating in my head: Should a mesh could have sub meshes or does the 3d model just store ...
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792 views

Should I use animated objects or use the physics engine on iOS scenes with lots of rigidbodies?

I have a scene with lots of houses and other objects. These objects will be bombarded from the sky. How to handle these kind of settings having in mind that you want the physics to be as realistic as ...
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1answer
211 views

Algorithm for staying “alive” forever

I am implementing a game where the player is playing(sliding) the little red rectangle and the purpose is to not hit the black rectangles and to not move out of the inner blue rectangle. The black ...
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307 views

Run Love2D on iphone and android

I have a game developed in lua using love 2d, and now i want to run it in ios/android. Is there any porting or way available to do that. Thanks.
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How should I structure my code to add enemies?

So I am currently making a 1942-style game in Sprite Kit. I've reached the point where I am finished implementing pretty much everything (movement, shooting (also recognizing a hit and exploding an ...
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332 views

How to detect collision on specific part of the sprite node

I have a spike and a ball is falling down, when the ball touches the top point of the spike, I want to make the ball invisible, and when it touches on the other part i.e on the sides I don't want to ...
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1answer
206 views

In 3D camera math, calculate what Z depth is pixel unity for a given FOV

I am working in iOS and OpenGL ES 2.0. Through trial and error I've figured out a frustum to where at a specific z depth pixels drawn are 1 to 1 with my source textures. So 1 pixel in my texture is ...
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599 views

Spritebuilder and CCScrollView, page indicators not showing up?

I'm using Spritebuilder to make my game, and CCScrollView usually saves me quite a bit of time. I'm trying to implement the scroll view much in the same way as the home screen on an iphone uses the ...
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Viewport Pixels trouble - Intel XDK

I'm creating a game in Intel XDK, and using their API to get the viewport width and height. These are coming back at 1122 pixels and 746 pixels, respectively. When adding my text at 150 pixels down ...
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472 views

iOS: OpenGL ES 2.0 render texture with glScissor performance

I have drawn image with OpenGL and will redraw tile of its texture (non filled area). Which case will work faster? Set glViewport with full texture's rect, draw full texture and use glScissor ...
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272 views

Why isn't this UIButton visible in Xamarin.iOS?

I'm trying to implement buttons into my game. I noticed iOS has the UIButton class, which I tried, but upon drawing it nothing is shown. The asset image is properly loaded, I've checked this. The ...
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How does Apple use App Store image banners?

I am about to publish my very first iOS game and was reading the Apple iTunes Connect guide (pages 237 till page 240). I understand that they require a PSD file of dimension 3200x600 pixels. I also ...
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160 views

How should I manage persistent score in Game Center leaderboards?

Let's say that I'm developing an iOS RPG where the player gains 1 point per monster kill. The amount of monsters killed is persistent data: it is an endless adventure, and the score keeps on growing. ...
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157 views

Bodies do not stay sticked together by joint in retina display

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 ...
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245 views

opengles display human face in iphone and animate it?

I need to make a human 2D face to 3D face. I used this link to load an ".obj" file and map the textures. This example is only for cube and pyramid. I loaded a human face ".obj" file. This loads the ...
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450 views

OpenGL ES screen to world coordinate

I am currently attempting to convert my screen coordinates to world coordinates, to be able to interact with objects. I am using glm and unProject to try and achieve this, so far this is my code: ...
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133 views

Does iOS support BC4 compressed texture?

I've been designing a new OpenGL image algorithm using BC4 textures at its core. It works well accross Windows and Mac, my main targets up to now. But today, the customer added a new requirement : it ...
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157 views

Unity3d generating a file in iOS and saving it on a linux machine

I've done a little research and don't know if the following is possible. At the moment I have created a small application in Unity that generates an XML file. This file will be used to help set up ...
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704 views

Unity3d import file on iOS device

im trying to figure out how to recall an external file in runtime on iOS device. I've already tried using Application.data+"/Raw/MY_FILE", with Application.streamingAssetsPath+"/MY_FILE", and with ...
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CCUserDefault, iOS/Android and game updates

My game uses cocos2d-x and will be published on iOS platform first, later on Android. I save a lot of things with CCUserDefault (scores, which level was completed, number of coins taken, etc...). But ...
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How to deal with Character body parts from Design to Cocos2d

I'm trying to figure out the pattern the game developers use together with game designers: See the picture below with the independent parts: Questions: 1) Should I create different image parts ...
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Submit scores for multiple players to Game Center from one iPhone

I have a quiz game, which i would like to integrate Game Center for. This is a "local" multiplayer game with the possibility to play six players per match. Is it possible to submit scores to the Game ...