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Questions tagged [objective-c]

Objective-C is a general-purpose, high-level, object-oriented programming language. It's mainly used for game development on Apple iOS and Mac OS devices, however it's not limitied to this platforms.

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4
votes
6answers
2k views

Is it worth planning to be cross-platform in mobile game development?

Disclaimer: my goal is not to use cross-platform frameworks like Unity. I am currently planning a mobile game which I intend to first launch on iOS. However, I am wondering if it is better to write ...
2
votes
1answer
433 views

cocos2d + sneakyinput joystick multitouch problem

I've added a joystick to my iOS game using the latest SneakyInput joystick code for cocos2d v3. It works well, but when a CCButton I have is pressed, the joystick ...
1
vote
1answer
401 views

Scrolling effect after touch

i'm making map for a game and need to make scrolling of map, so the main thing what i need is to calculate speed and move layer after player remove finger from screen. I make it my own, but i think ...
5
votes
1answer
539 views

UIView with IrrlichtScene

i have a UIViewController in a Storyboard and want to draw a IrrlichtScene in this View Controller. My Code: WWSViewController.h ...
1
vote
3answers
2k views

How to determine an irregular area of a CCSprite?

In my simple game I use boundingBox for pick coins and other stuff, but I need use irregular area detection of Sprite(with out Alpha)... There is alternative to boundingBox? Here is code: ...
22
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4answers
13k views

How to achieve uniform speed of movement on a bezier curve?

I'm trying to move an image along Bezier curve. This is how I do it: ...
3
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1answer
357 views

Objective-C SpriteKit – How to make a circle of buttons [closed]

I have some code in a project already, but I'd like to change it up a bit. Currently, my code creates an empty node called _buttonLayer and then create some buttons ...
6
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2answers
3k views

Creating an isometric map with hexagonal tiles for iPad

I'm new to game development, so I need a little help. I have to write down a little game which has a floor with hexagonal tiles, but it must be seen in an isometric view like The Sims. Ignoring the ...
2
votes
1answer
418 views

Design leaderboard ratings for quiz games

Back in March 2011 i started the following post: How to design a leaderboard? Now my quiz game have been out for approximately a year and sold pretty decently. I am working on to update the game ...
1
vote
1answer
69 views

Objective C Path

I am looking for some help on what would be the best approach to create a path from one point in a grid to the other side. Imagine a grid of 5 x 5, where at (0,1) there is a light source pointing ...
1
vote
1answer
417 views

SpriteKit and Swift or Objective-C [closed]

As a newbie to iOS programming, I'm wondering which of these would be more conducive to the type of game I want to program. I've been tasked to program an iOS game for my company. They asked me to do ...
5
votes
2answers
1k views

How to play sound effects on iOS?

I have a game that plays sounds when some events occur. Currently, I am using AVAudioPlayer for the purpose of playing the sound. But just the bare ...
11
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2answers
2k views

Does SpriteKit follow the MVC pattern?

I am currently working on an iOS project called Old Frank that I have been trying to follow a MVC design pattern. The gist of it is. ...
4
votes
4answers
14k views

Do you know any 3D engines written in Objective-C for iOS? [closed]

In the next few weeks I will start a game for iOS, most of the action will happen in 2D but a 2D engine is not enough for our idea, therefore I'm doing a small research on available 3D engines for iOS ...
1
vote
1answer
199 views

Making Bigger Touch Space in Node Using SpriteKit And Objective-C

I am trying to make simple game, but I have a problem. The node is too small. On iPhones with smaller screen size, the finger can't move it. On iPad and on simulator, however, the node can be moved ...
16
votes
6answers
6k views

Can I develop games for mobile platforms in C++?

I have a good grasp in C++ and C and have also experience developing AAA game using C++. Now, I'm shamelessly thinking to dive into mobile game development either in iOS or Android. Unfortunately, I ...
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
333 views

Tetris implementing rotation

I am currently at the last stage of the Tetris Clone using SDL library, the only thing left is rotation. For each piece I have a separate class, and in order to move the pieces down I use a method: <...
1
vote
1answer
430 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, ...
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 ...
1
vote
2answers
378 views

Are C and Objective-C sufficient for creating games on the iOS? [closed]

These days, I'm focusing on games development on the iOS. C++ is the lingua franca for games development but seriously, I prefer to code in C programming language, not in C++. So for iOS games ...
-2
votes
3answers
1k views

Objective-C or javascript+html5+canvas? [closed]

I'm really interested in starting to study some language with the idea of develop games for ipad and iphone. My main concern is that as soon as is possible to develop games with javascrit and html5 ...
1
vote
0answers
442 views

What is Sprite Kit capable of? [closed]

I am messing around with Game Maker in my free time. I learned some Java at school but never really understood the object oriented principles. When I got to know Game Maker I was surprised that game ...
5
votes
1answer
731 views

Bullet physics weird behavior. Jittering and drifting with btBoxShape

I'm dropping a simple box onto a plane from 100 units and my solution using Bullet Physics is giving me some weird behavior. The dimensions of the box are {2, 4, 1}. When the box hits the ground it ...
1
vote
0answers
60 views

SpriteKit Obj-C – How to add a force on a node a certain distance according to screen size

I have an SKSpriteNode that I'm trying to throw up to a certain point on the screen. I've tried applying an impulse and/or force according to the screen size, but that has strange results. I've also ...
3
votes
1answer
258 views

How to calculate final force vector for the SKSpriteNode

I am creating space game which has an effect similar to black hole's gravitational effect. Wherever the spaceship is going, the black hole will attract it, summing up all the vectors together. I know ...
6
votes
4answers
3k views

top down game - checking, drawing enemy's line of sight area with obstacles

Examples of what i'm going to need: I'm using cocos2d to draw a CCTMXTiledMap, on those tiles i'll have to draw the LOS cone. How would i test if the player is within that cone, taking obstacles ...
4
votes
1answer
3k views

Spritekit water flowing [closed]

I'm wondering if there is a way in spritekit to implement water flowing through a path? like this water flow Right now I'm generating the path using UIBezierPath and PaintCode Any suggestion? ...
2
votes
0answers
56 views

Field of vision - Objective-c

Here's where I'm at. Here's where I want to be Here's how it's drawn ...
1
vote
1answer
103 views

How to write a custom map canvas and project coordinates on it? [closed]

I am writing a game with Objective C ( xcode ) and I need to use the users location service to mark their position on a map but since I need to create my own map component, I am not able to use the ...
0
votes
1answer
939 views

How to resize the child node fit inside SKSpriteNode when resizing?

I am creating a virtual gamepad for my game, It has one main SKSpriteNode with circle image and four child node(up, down, left, right) with image. When I am using default size for all it looks perfect ...
-2
votes
1answer
380 views

Error running an Action in Cocos2d-x

In my game I have a "rocket" type and I want to run a sequence of actions on it. At first it must run an explosion animation and then remove itself from the game. For this I used the following code, ...
0
votes
0answers
592 views

Moving pac-man in maze game using objective c

I am trying to develop maze game using objective-c, I want to allow moving the pac-man using swipe method, the user can swipe his fingers on the iPhone to indicate where he want PAC-MAN to go but I'm ...
0
votes
1answer
290 views

Understanding CGPoints in SpriteKit

I am planning to place three cards on a view which I add to the background. However I wanted to combine two of the cards and replace the first card position with the new card position. Is there any ...
1
vote
1answer
64 views

Run some objc code very early in unity iOS game lifetime

I want to hook up a crash reporting service to my unity iOS game. It's just one line of objC to add, as early into the app lifecycle as possible, but I'm not sure how to get it to run. I know I could ...
10
votes
4answers
4k views

In Cocos2D, how do I check for collisions against an arbitrary user-drawn shape?

I want to detect a collision between a sprite and a user-generated shape of some sort. For example. There are 3 objects on the screen. The user takes their finger and draws an abnormal shape around 2 ...
0
votes
1answer
154 views

Transition from UIView to CCScene in Cocos2D

I've surfed the internet for quite some time but haven't come to find an answer. Any help would be greatly appreciated. I am trying to perform a transition from a UIView to a CCScene So i have a class ...
0
votes
1answer
87 views

memorizing button tap code iOS game

I'm using a single view app in Xcode 6.1 for my game with Storyboards. Not unity or sprite kit. It's a small game not even 3MB. Anyways, I created un-lockable characters with a BOOLEAN. ...
1
vote
1answer
241 views

iOS Facebook SDK, Games Start Playing post

im trying to implement a method in my native iOS game the publish a story on face book such as this photo most games that is integrated with facebook share stories like this in the activity section ...
1
vote
3answers
712 views

Finding neighboring coordinates on offset tile map

I have a grid of hexagonal tiles. Every other row is slightly offset for visual reasons. Imagine a player touches any tile - I need to compare the coordinate of that tile, with any tile they touch ...
-1
votes
1answer
5k views

How change the size of sprite in cocos2d?

I want to change the scale of sprite like a paper in 'Paper Toss' game. 'Paper Toss' is the game is available on the App store. I want to make a sprite like a paper and change the scale of sprite ...
3
votes
3answers
1k views

How to approach 360 degree snake without having it “slide”

There's a great question here that helps me a little bit in what I want to do, and it explains it quite well: How To Approach 360 Degree Snake Basically, I want to have a smooth 360-degrees Snake ...
1
vote
3answers
3k views

Detecting End of Animation

So I am making a death animation for a game. enemy1 is a UIImageView, and what I'm doing is when an integer is less than or equal to zero, it calls this deathAnimation which only happens once. What I ...
0
votes
0answers
32 views

Reverting 2d canvas?

I'm making a multiplayer game which involves drawing lines. It's based this game: http://curvefever.com/sites/default/files/resize/remote/ef86488088c618df13b34f8b87aafd4e-1107x808.jpg. The game is ...
7
votes
7answers
6k views

Very simple open source games in various languages? [closed]

Are there any very simple open source games available just to demonstrate the basics of the programming techniques? Preferably something which fits in to a couple hundred lines of actual code. ...
0
votes
0answers
318 views

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 ...
1
vote
0answers
44 views

CCActionMoveBy doesnot working properly when the action called for many of the sprite in cocos2d

I have an issue with CCActionMoveBy when I call the movement action for many of my sprites. I need to move to a certain position and then remove it from the scene. ...
1
vote
6answers
9k views

Snake game logic

So I'm thinking about making snake game. I started thinking about it. I figured out almost everything, but I have found one fundamental problem I can not fix myself and I need your help. The logic ...
1
vote
1answer
262 views

Changing location after CommitAnimations

I'm using the following code to move a UIImageView: ...
2
votes
1answer
159 views

How can I test if an oriented rectangle contains another oriented rectangle?

I have the following situation: To detect whether is the red rectangle is inside orange area I use this function: ...