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Questions tagged [ios]

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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1answer
1k views

How to create and choose sprite sheet for different mobile screen resolution in Unity

Background We’re working on a 2D mobile game. We want to publish the game on all apple devices which at least support iOS 7 and to all android devices which at least support Android 4 OS. These ...
2
votes
1answer
1k views

How to create a 2D ocean effect in cocos2dx and box2d for iphone, android, windows phones

Currently my game needs a top ocean view. Can this ocean effect done using box2d? or should I dive into write my own physics (liquid/water simulation). Ideas and suggestions are welcome.
1
vote
0answers
713 views

Fatal error: unexpectedly found nil while unwrapping an Optional value [closed]

I am trying to run this code but I keep on getting this error: fatal error: unexpectedly found nil while unwrapping an Optional value I don't understand why I'm getting it. Any hint? ...
1
vote
1answer
3k views

How do you set multiple collision rules with Swift and SpriteKit?

So basically I've got 2 types of balls and 2 types of enemies. Green can delete red only, red can hit delete only. Here's what I have for the first collision test: ...
4
votes
2answers
625 views

How to setup libGDX project only for Android & iOS?

I have developed some applications on android.But now i want to learn game development in Android & iOS with libGDX. I want to only develop for Android & iPhone.I do not want a desktop project....
0
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0answers
124 views

Unity3d app immediately goes to background after starting up on iOS

So the iOS build of my game started doing this today and I have no idea why. The only think I can think of is that I added this line : ...
3
votes
0answers
34 views

First time working on 3D game: exporting steps after designer finishes 3D characters?

First time making a 3D game so could use advice. The designer is creating 3D characters with Cinema 4D (https://www.maxon.net/en/products/cinema-4d/overview/). What steps are required to go from his ...
3
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2answers
2k views

Handling touch input with Event Trigger

I wrote a simple script to control my 'Player' object: ...
0
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1answer
367 views

Xcode Build Errors Unity 4.7.2

These two errors are doing my head in. New to Xcode. So please advise thank you. FYI I did not touch or modify anything of the Xcode that was generated by Unity. Upon opening there is a warning that ...
0
votes
1answer
113 views

Unity and C# - Cube with random directions

I want to create a similar line RigidObject in Unity c# just like in the iOS game Circle: So far I placed a cube object that is extended by length. So, how would you approach to create such an ...
-5
votes
1answer
273 views

Should I patent game before putting it on Apple App Store?

If it's a huge hit, I could then patent it. Or, if I put my game up on App Stores before patenting, does this cause a problem? Would this invalidate a patent application? Should I bother to even ...
1
vote
0answers
93 views

TVOS SiriRemote micro pad value change handler is not called

I have a UIViewController which inherits from GCEventViewController and I register a value change handler for the GCController microPad Profile. But when I use the SiriRemote in the Simulator none of ...
5
votes
1answer
3k views

How do I pixelate a scene with SceneKit and Metal, in Swift?

I managed to get pixelation working by using the OpenGLES2 rendering API, and a CIFilter. But it was way too slow, so I want to use the Metal API and just have a very simple filter that pixelates ...
4
votes
2answers
542 views

Sprite Kit - containsPoint for SKPhysicsBody?

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 ...
-2
votes
1answer
631 views

Will Chartboost block my account for clicking my own ads?

I created a game in iOS and Android. Every day I manually click ads in it from my device. Is this okay? Or can Chartboost block my account if I do this for a long time? I've been doing it for the ...
1
vote
0answers
165 views

Black border all around simulation / viewport in iOS using Xamarin + CocosSharp

I'm just getting started with Xamarin and CocosSharp so it's possible I've missed something basic here.. but whatever it is I can't seem to figure it out. I'm trying to get my app/game to be ...
0
votes
1answer
372 views

How can I determine the size of my app store bundle?

I made a very simple game. It only has Facebook, and Twitter share icons but it does have Ad Networks SDKs and adapters. My entire folder that contains all the SDK's is currently 200mb. The inmobi SDK ...
1
vote
1answer
353 views

Screenshot always returning as a white image on iOS using robovm and libgdx

I am trying to take a screenshot for sharing on social media. This code works on my Desktop project, but when I use it on iOS it always shows up as a white image, I am using the standard libgdx code ...
1
vote
0answers
33 views

Paradigm for storing user data for iOS

Disclaimer: I'm not well versed in Game Dev best practices so this may be a trivial question. I'm developing an iPhone game in which I have to store a user profile containing such information as ...
0
votes
2answers
143 views

Android game to iOS, go with an engine?

I have developed a game on android using native coding. However I am being asked to port it to ios. So I thought that I should bite the bullet and recode it in unity so I can go cross platform. I ...
0
votes
1answer
1k views

Isometric scene in SpriteKit

I tried play with spritekit in isometric grid. But i can't understand how to fix level. ...
1
vote
0answers
637 views

Mobile game without game engine [closed]

I am planning on making a 2D mobile game for iOS and Android. It will have animations (including some simple flash/light and particle effects, like in Candy Crush), but the only physics the game will ...
2
votes
2answers
423 views

Data model design using Core Data and Spritekit

I have a entity called Item, and every item can have two or three bonuses... What would be a good model design in this situation. I can think of something like: To have many optional attributes ...
0
votes
1answer
77 views

Does Apple allow customers to play over Bluetooth?

I'm a beginner in app development so sorry if my question is cheap :( I wanted to start developing a card game and i was wondering if apple allows customers to play over Bluetooth or not ( on ...
1
vote
1answer
247 views

Should be GameKit used together with GameCenter?

As far as I understand, GameKit provides Bluetooth-maches, while GameCenter allows to play matches through internet. So it looks like the best scenario is to use both of them? Is this reasonable?
4
votes
0answers
875 views

Porting libgdx game to iOS using Multi-OS engine - how to add Admob ads

I want to port my libgdx game to iOS using Multi-OS (RoboVM is no longer available). I've searched whole internet but can't find any info about how to use Admob with Multi-OS engine on iOS. Every ...
3
votes
2answers
2k views

Spritekit - gradually apply force vector in different direction (space ship turning)

I have a space ship that I'm applying a force vector to using a joystick for control. I would like this to smoothly fly around when I'm switching directions.. Exactly like minisquadron if you've ...
3
votes
5answers
14k views

What are the pros and cons of GameSalad versus Cocos2D? [closed]

I am currently using the Cocos2D framework for creating my game but I just happened to come across GameSalad and was amazed by this video. GameSalad claims to allow you to create games without ...
5
votes
4answers
231 views

What platform should educational games target? [closed]

Should educational games target the PC or mobile market? My professional development experience has been with the PC, but I'm wondering if mobile (iOS, Android, etc.) has a better market for ...
1
vote
3answers
1k views

OpenGL ES, orthographic projection and viewport

I want to make some simple 2D game on iOS to familiarize myself with OpenGL ES. I started with Ray Wenderlich’s tutorial (How To Create A Simple 2D iPhone Game with OpenGL ES 2.0 and GLKit). That ...
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1answer
2k views

How to enable/disble vibration feedback in Unity?

I want to create toggle that enable/disable vibration feedback on the device, as i can't figure it out. How do i do that? ...
3
votes
0answers
289 views

How could I achieve an iOS high detailed level design for a platformer?

I'm seeing a lot of games that use a predefined and repeating set of tiles for their level (like FlappyBird or the Super Mario game series). I'm a graphics designer so I would like to create levels ...
1
vote
0answers
490 views

Failed to pass uniform in Metal shader modifier

I'm trying to write a simple shader able to pass the color to be used for drawing in the fragment shader, through a uniform. I load the shader modifier and pass the uniform: ...
1
vote
0answers
546 views

Unreal Engine - How can I add blur effect at my Camera in iOS

I have requirement to add blur effect at my camera in specific point , it work just fine in pc but when I deploy in my phone it remove the effect According to documentation To turn off Depth of ...
4
votes
2answers
4k views

How to load a png file without alpha premultiplying in ios?

I am making a game in which I use the alpha value, in some cases for transparency, in others for occlusion, and for HDR in others. I'm loading the images like this (this is MonoTouch, but objective-c ...
2
votes
2answers
937 views

Unity NGUI Arial Label looks different in iOS after updating Unity to 5.1.1

I am using NGUI and I have a UILabel. It uses Unity dynamic font Arial. Bold. No effects. This is how it looks in the Unity editor: And that's how I want it to look. When I build it in iOS, it looks ...
2
votes
1answer
2k views

Is it possible to use Metal and SceneKit at the same time?

All the tutorials that I've found online speak about using Metal alone, without any other supporting library. But I don't understand if it's possible to create a SceneKit game and then use a Metal ...
0
votes
1answer
181 views

2D Soccer Goal Net

I want to make a 2D soccer game on iOS, I started with SpriteKit and got the ball physics working. Now, I could make the goal simple and static, but I'd love to make it make it elastic like a real ...
1
vote
1answer
509 views

How can I describe a square in OpenGL ES 2.0?

I need to draw a Tic-Tac-Toe board in Xcode using OpenGL ES 2.0. I am new to graphics programming and can't find good information on drawing a square in opengl es in iOS. I looked at Ray's tutorials, ...
14
votes
4answers
15k views

Should I learn 2d game development before 3d? [closed]

I'm an iPhone app developer. I want to get into iOS gaming. The question is-should I start with learning 2D like Cocos 2D or Corona SDK before learning 3D gaming like Unity? I'm more interested in 3D ...
3
votes
3answers
2k views

How to set up a game loop for a project targeting iOS?

I'm a fellow game programmer who's done many game engines in Game Maker 8.1, Visual Studio XNA and MonoGame with C#, and one in Java Android with Eclipse. I'm very used to C# and love it plus the VS ...
0
votes
0answers
526 views

Unity crash on iOS - GameObject.SendMessage()

Unity Version: 5.3.2p2 It's crashing from within Unity's internal code when doing a GameObject.SendMessage() call, it should be noted that this particular line itself is not the source of the crash (...
1
vote
1answer
7k views

Why is SCNNode.rotation property a four dimensional vector?

I don't understand why SCNNode's rotation property is a SCNVector4 instead of a SCNVector3. The documentation states that: The four-component rotation vector specifies the direction of the rotation ...
2
votes
1answer
350 views

Pathfinding: longest route along tiles of same type

I'm programming a simple tile-based puzzle game, and I've gotten stuck trying to work out a pathfinding algorithm. Here's how the game is set out: The game board is (arbitrarily) 8 tiles wide by 8 ...
0
votes
1answer
129 views

How could I access game data from a dev machine at runtime from a mobile platform?

When working on a game on a mobile platform, having read/write access to game data (assets, configuration files) stored on the dev machine at runtime would enable building of tools to quickly iterate, ...
0
votes
1answer
477 views

ArgumentNullException Parameter name: format [closed]

I have made a simple game using Unity with Vuforia and exported for Android and iOS. It works fine on Android, but on iOS it crashed and gave the error: ...
4
votes
3answers
365 views

How to fill in crevices on a height map

I am a very experienced iOS Developer, but I am beginning my very first foray into 3D graphics (specifically with SceneKit). I'm trying to model a planet, and I have it working with a height map ...
0
votes
1answer
159 views

GLES2 rendering performance for different iPad generations

I'm using C++/GLES2 for iPad only (no iPhone). The only device I own is an iPad2 and I do not plan to support iPad 1. Can anyone help me understand realistic goals/limits on iPad 2/3/4 in terms of ...
0
votes
1answer
96 views

Unity 4.6.6 iOS Build Issue

I am using unity 4.6.6 to create a Xcode build. When I create a build I am getting following error Cannot initialize return object of type 'Singleton_1_t6738 *' with an rvalue of type '...
2
votes
3answers
9k views

Am I allowed to release an app I developed with Xcode on windows?

I want to develop an app for the iOS app store, but don't want to invest in a mac since they start very expensive. So I considered running Xcode via VMware using OSX Lion on my windows 7 computer. ...

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