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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Cocos2d v3 - addChild method make performance problems

i have currently a performance problem with the addChild method in cocos2d version 3.3. My scenario is currently that i have about ten CCNode which holds a bundle of other CCNode (about 500), i called ...
2
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1answer
674 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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3answers
24k views

How to move gameobject with touch on Android

I'm trying to make a game where you control a character via touch on Android devices. The player will have two degrees of movement. When you touch the touch screen and move your finger, the game ...
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1answer
62 views

equivalent texture function to texture2D in OpenGL-ES?

I'm trying to figure it out how can implement the same result using texture2D. The result expected is a luminescence operation but I couldn't replicate the same functionality using texture2D for iOS. ...
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1answer
137 views

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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1answer
49 views

iOS gaming with copyrighted characters? [closed]

Can I use animate characters in an iOS game if I do a citation in the credits. Ex Steven univers in a fighting game and I list Rebecca Sugar in the Credits or by the character bio.
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1answer
95 views

Should I design UI in raster or in vector editing software? [closed]

I am working on a IOS city builder game (more like planet builder) but that's not the case, I was making the buttons in photoshop when something hit me: "if I make raster icons in photoshop, they will ...
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1answer
47 views

How to make an object in box2d have constant velocity even after collision? [duplicate]

I have iOS game where I have a bouncing character. Everything is being handled by box2d. The problem is when the character hits a wall of another character it's velocity changes, but I don't want ...
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2answers
263 views

Execute native ios code in unity [closed]

I want to execute native iOS code in unity. For this I have added two files in /plugins/ios. ViewController.h ViewController.m Code for each file represented as under. ViewController.h ...
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0answers
78 views

Loading Textures in Background Cocos2d Objective C loading CCScene

I am allocating a few CCScene subclasses, but when I do this, it takes more than 10 seconds. What I am trying to achieve is to perform a small CCAmimation, such as a loading logo glowing. My question ...
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0answers
108 views

iOS8 + SpriteKit. Does a Node Moved Via Pan Gesture Have Velocity in the Physics Simulation?

I have some SKSpriteNodes arranged in a 2D grid. Each has a physics body including mass and charge. I attach a pan gesture to the SKView and a corresponding pan handler to the SKScene. When I pan I ...
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1answer
149 views

Can someone provide a practical example of decoupling game world updates from frame redraws in iOS?

Please bear with me as I've been spending some time lately trying to get a better grasp of some game dev fundamentals. My specific issue is a direct result of trying to apply what I've read about ...
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4answers
16k views

What programming languages would be used to make an Apple App like Angry Birds or Cut the Rope? [closed]

I'm currently working in the Multimedia industry and although I'm better at design then development. I have knowledge of HTML, CSS, very basic jQuery, Actionscript. What programming Languages would ...
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vote
1answer
152 views

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 ...
8
votes
1answer
1k views

Using L-Systems to procedurally generate cities

I'm currently making an app that focuses a lot on procedurally generated content. So far, I've successfully implemented the procedural generation of the terrain and shape of a map using simplex noise. ...
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3answers
2k views

App Store: Profitability for Game Developers

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 ...
5
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4answers
409 views

How bad would be to focus on iOS/Android development for an indie developer? [closed]

After some time developing games for others I'm thinking of moving towards my own productions. My background is 10+ years of software development, with last 2 years spent on the iOS development ...
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0answers
57 views

Using Tile Maps with cocos2d - how do I handle a large amount of images?

I am building a game where the users (players) can build their own town. There they can build houses, add furniture to the houses etc etc. Basically similar to The Sims. I am using the Tiled Map ...
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1answer
157 views

What is the speed difference between cross platform HTML5 games and native mobile games? [closed]

Microsoft is advertising and promoting cross platform HTML5 game development. I am thinking of creating a simple 2D side scroller game and I am trying to decide what engine should I use for creating ...
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0answers
28 views

Intersection issue with box2d in iOS

I'm trying to use the code here http://www.iforce2d.net/b2dtut/raycasting So I can know whether a line cross a box2d object or not. It half works, in that when the line crosses the object it does ...
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0answers
214 views

iOS Workflow for Importing Animations Into XCode

I am working with an illustrator to add animation to my iOS app. She is using Adobe After Effects on the illustration side and I am using SpriteKit on the developer side. However, the specifics don't ...
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0answers
67 views

Securing HTTP requests to online game server

I'm pretty new at making online games. Right now I'm trying to make an iPhone game. Each player has a profile in my server. I want to avoid username/password for authentication. Currently, as it ...
16
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4answers
8k views

Is deferred rendering/shading possible with OpenGL ES 2.0 ?

I asked this on StackOverflow, but it might make more sense here: Has anyone implemented deferred rendering/shading under OpenGL ES 2.0? It doesn't support MRTs, so with only one color buffer, it's ...
0
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1answer
244 views

Need ideas on how to give my levels structure [closed]

I am making an iOS game for a project at school. It is going to be a tiny bit like Fruit Ninja, as in it will have different things on the screen, and when you hit them, they die, and you get points. ...
4
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2answers
1k views

How to implement color changing fragment shader?

I have a background of a given size and filled with a given color. I want to change it with an animation effect, starting from the center and spread out until it extends the whole background. The new ...
2
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1answer
301 views

Total Texture memory size iOS / OpenGL ES

My team is running into an issue where the amount of texture memory allocated via the glTexImage2D is high enough that it crashes the app ( at about 400 MB for iPhone 5). We're taking steps to ...
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0answers
34 views

Rectification of an image by using texture projection

I need to rectify an image with texture projection on GPU (GLSL/shaders), do you have any resources/tutorials/insights to share? I have the 3D pose of the camera that created the image and the image ...
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1answer
116 views

Offset a camera/render without changing perspective

I need to offset a render so that the perspective / vanishing point doesn't change. Or another way to look at it is that I need to adjust the vanishing point in my view so that instead of being at ...
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vote
1answer
304 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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0answers
78 views

iOS + cocos2d: how to account for sprite's position for the different device dimensions in an universal app? [duplicate]

All the questions I've seen regarding iOS universal apps (with or without cocos2d) deal with the "how to add graphics to a universal app". My question is, how does the code need to be written to ...
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vote
1answer
1k 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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1answer
248 views

Is there a size limit when using UICollectionView as tiled map for iOS game?

I'm working on a turn-based strategy game for iOS, (picture Civilization 2 as an example), and I'm considering using a UICollectionView as my game map. Each cell would be a tile, and I could use the ...
3
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1answer
508 views

Simulating Smartphones on PC with Unity

I want to make a game that depends on the phone orientation (changing shoot direction with tilt), however I need to test this on PC. So is there any tool I can use to simulate the orientation of the ...
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1answer
81 views

How can I know when a player quits out of a turn from the Game Center UI?

In an iOS Game Center managed turn based game, if a player quits out of turn from the Game Center UI, then turnBasedMatchmakerViewController:playerQuitForMatch isn't called (as expected). However, the ...
0
votes
1answer
172 views

How can I ensure my Collada model fits on an iPhone screen?

Hi I am new to game development. I see many examples and tried myself like displaying triangle, cube etc. Now I am looking to render a Collada object. So I created a Collada object using Google Sketch ...
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0answers
2k views

Dragging an object by touching on Android

I am trying to move and object by touching it and dragging. I am testing it on my Samsung Galaxy SIII. I have used the following code. For some reason it moves faster than my finger. It should always ...
0
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1answer
87 views

Can I my iOS-based editor save .plist files that my Mac game can read?

I want to make an editor on iOS which will record touch positions into a file. That file (in the .plist format) will eventually be used for positions in my Mac connect-the-dots game. Can I save one ...
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0answers
21 views

shifting turn in real time game using ios

I am trying to develop a real time game in ios but not getting how to shift turn that the users will likely to be real.I think it is not possible using php.So which will be better for that. Thank you ...
2
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1answer
483 views

SpriteKit - How to jump to specific position?

I'm would like to achieve something like Object A will jump to position A in parabolic way. For example: I am able to make the object jump but i do not know how to calculate to make the object jump ...
0
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1answer
163 views

Is this technique for stat tracking without a database workable?

If I wanted to create a chess game, for iOS, that tracked both player moves (for retracing the progression of a game and for player stats), what would be the simplest route to take? To clarify, I ...
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0answers
120 views

iTunes Connect Not Deleting Game Center Leaderboard Test Data

I was wondering if anyone has had this problem, and if they were able to rectify it: For the last few days, I've been trying to delete Game Center test data from iTunes Connect unsuccessfully. The ...
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vote
2answers
662 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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0answers
90 views

How do I setup scoring system for my game? [closed]

I've created a simple endless game. And I want the scoring system to be something like the one in flappy bird. My aim is to publish my game to app stores in the end. How do I save/keep a high score? ...
2
votes
1answer
1k views

iOS Sprite Kit - Blend Mode Effect

This question builds upon the following question: How can I achieve a good fire effect with alpha blending and particles? I want to achieve the visual effect of using SKBlendModeAdd on a black layer, ...
1
vote
1answer
294 views

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 ...
0
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1answer
928 views

How to get the complete width of SKSpriteNode which has many child nodes

I have a Sprite node with many 6 child nodes. Each are placed one after another in X-axis. I want to know the complete with of the Sksprite node. SKSpriteNode *array = [SKSpriteNode node]; [array ...
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0answers
97 views

Maintaining a constant magnitude of speed of a CCNode's physics-body after collision with a static body

I have two CCNode class "Baffle" and "SmashBall" with there physics bodies. Here are the PhysicsBody details of Baffle // Defining the physics body CCPhysicsBody * physicsBody = ...
2
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2answers
59 views

How can I add an impulse to specific rigid bodies at rest?

Scenario Rocks falling down a rocky slope, with a flat surface at the bottom. When they land on the surface, the rocks move slightly before coming to a rest. GLESDebugDraw shows the bright orange ...
0
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1answer
328 views

Unity animations in iOS

I'm an iOS developer and I'm trying to make 2d animations with Unity 4.3 + RageTools Pro + RageSpline. I want to integrate the animations into a native iOS application. In Unity I have different kind ...
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votes
1answer
36 views

Connect players with same phone language settings

I am working on a turn-based multiplayer game using game center. The game also use Spanish localisation. It is enabled by reading the device language settings. Now my requirement is: When i start a ...