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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Particles starting around specific shape?

I'm trying to solve a difficult UI issue with my iOS/Cocos2d game - I need a visual way of highlighting when a user has made a unique connection of the game pieces (think: a user a forms a triangle ...
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1answer
179 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? ...
4
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1answer
145 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. GameObjects(model) <- Scene(controller) -> Sprites "SpriteKit" ...
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3answers
101 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 ...
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0answers
125 views

Making a card game [closed]

I'm making a card game, for mainly knowledge reasons. My tendency to learn so far has been to create and struggle through to have the knowledge at the end. However, I've never made a game before. My ...
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3answers
256 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 ...
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0answers
35 views

iOS / Gamekit - Leaderboards empty after adding in 3 values from different accounts

I am trying to query for the high score and rank of a player on a leaderboard. I am using some code found on the Apple website: - (void) retrieveTopTenScores { GKLeaderboard *leaderboardRequest = ...
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0answers
27 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 ...
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1answer
56 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. ...
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0answers
66 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 CCNode which holds a bundle of other CCNode (about 500), i called ...
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33 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. My problem is If the call the ...
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0answers
81 views

Cocos2D v3 CCParallaxNode scrolling can't keep player in focus

I am very fresher to game development and I need to develop a game like NinjaJump. I have created a CCParallaxNode to setup scrolling background and added CCPhysicsNode to setup Physics world. I have ...
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1answer
115 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: - (BOOL)isTile:(CGPoint)tile insideCustomAreaMin:(CGPoint)min max:(CGPoint)max { ...
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1answer
98 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 ...
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1answer
97 views

sprite kit xcode CGPoint

Hi I am a newbie in this sprite kit xcode. So I am planning to place three cards on the view which I add them to the background. However I wanted to combine two of the cards and replace the first ...
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1answer
269 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 ...
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1answer
250 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 touch event ends. Based on my ...
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0answers
60 views

CCTextField won't appear

I can't seem to add a CCTextField in my physics node, I tried all different methods, but it's still not happening. Here's my code: CCTextField *tf = [[CCTextField alloc] init]; tf.contentSize = ...
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1answer
156 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, ...
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0answers
30 views

How can i get latency when using Game Center?

I'm pretty new to network programming. Basically I'm using game center for making a relatively simple iPhone game using Game-center p2p. However i'm now working on a algorithm to improve the ...
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0answers
26 views

How can I fix latency problems for car game? [duplicate]

Basically I'm trying to make a online car racing game for IOS using Game Center real time multiplayer. I have setup a timer that sends data every 0.02 seconds to the other player with the current ...
0
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0answers
181 views

Cocos2dx InApp Purchase for ios

I am trying to integrate In App Purchases in my app made by using cocos2d x c++. I am using easyNdk Helper for In App Purchases. My In App Purchases works perfectly for my Objective C apps. But for ...
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1answer
263 views

applyAngularVelocity causes error when called right after object instantiation

I'm trying to make a physicsBody rotate as soon as it is instantiated. CCNode* ball = [CCBReader load:@"Ball"]; [ball.physicsBody applyForce:force]; [ball.physicsBody ...
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1answer
101 views

Manually remove inactive CCParticleSystem from scene?

When using particle systems that have a lifetime, with CCParticleSystem and its derived classes, should I manually remove the finished systems from their parent nodes once the particle animations are ...
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1answer
510 views

I need some help with stopping individual sound effects in OALSimpleAudio

I'm trying to find out how to stop a specific sound effect rather than having to stop all of them. I'm using OALSimpleAudio. I can't seem to find how to do it. simple google searches result in ...
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1answer
905 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 ...
5
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1answer
169 views

How can I implement Objective-C libraries in Unity?

I've been a "hardcore" developer for sometime now, as I've always worked with pure code reactive rendering, and contributed to Cocos2d library some time ago , (It is the one I used for my games) . But ...
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1answer
240 views

Incorrect sprite rotation with atan2() [duplicate]

I want to rotate a sprite so that it faces the mouse cursor/screen touch location. Currently I'm using the following method to compute the angle of rotation. The input position is the target point the ...
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1answer
919 views

Preload in cocos2d v3

I'm trying to create a preload, but i don't know how to implement the code of this topic in cocos2d iphone v3. Since CCTextureCache has changed to CCTexture, and doesn't have sharedTextureCache ...
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2answers
60 views

Count number of CCNodes of a certain class on a layer

Pretty simple question. I'm working in Objective C (cocos2d) and I'm trying to count the number of a sprites of a certain class are present on the current layer being displayed. For example, I have a ...
0
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1answer
315 views

try to create CCSpriteFrame but get nil values

I'm trying to animate a CCSprite in cocos2d v3 following this question, but I'm getting the following error message in Log: Terminating app due to uncaught exception 'NSInvalidArgumentException', ...
0
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1answer
104 views

Box2d stopping the movement of an object

I am in the process of making a game and I need an object to move only when the buttons are pressed. I have a method that begins the movement, and so far I am ending the movement of an object by ...
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0answers
96 views

How can i stack up tiles for Connect4 objective C? [closed]

I am trying to learn Objective C and iOS programming. And I'm trying to build a Connect Four. So Far i got this. I've been looking around and asking around but I haven't got the answer to my ...
-4
votes
1answer
114 views

How can I develop a game for iOS? [closed]

I have a Mac arriving in the next few weeks, and plan to program a 2d game. I know a little bit of Java but nothing about Objective C. I've heard about cocos2d -- it seems good but I don't know ...
0
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1answer
556 views

Tower defense endless levels logic sprite kit [closed]

I am making a tower defense game for iOS using Sprite Kit. I would like for my game to support an endless number of levels, like in Bloons TD 5. What approach should I take to implement this?
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1answer
210 views

Help with concrete examples of Perlin Noise variables for terrain generation

I believe this question can help beginner game developers. I've looked through a dozen or so answers on perlin noise here and on Stackoverflow, and found only 1 concrete implementation of perlin noise ...
2
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0answers
38 views

How to implement a property with a base value and a changed value? [duplicate]

I have a number of stats and effects in game that are subject to change, they have some kind of base value and the current value. For stats, I implemented this in a dynamic way, but for less important ...
2
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2answers
154 views

Architecture - how to refer to skills/abilities internally within code?

I have about 60 skills within my game, which are loaded from a JSON file. Each skill is a subclass of a skill object and has attributes like range, cost, target type, etc. Currently each skill has an ...
1
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1answer
179 views

How to centralize stat/feat/equipment related changes in an RPG?

I have a game with an RPG system where derived stats, like HP,armor, etc depend on a variety of components: armor, stats and feats. I'm running into an issue where the code to change derived metrics ...
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1answer
119 views

Where can I find info on grid based algorithms for stateless AI? [closed]

There seems to be an overwhelming amount of info out there on AI of all kinds, and it's kind hard to digest at once. For my testing purposes, I'm creating a "typical stateless AI", as described in ...
0
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1answer
85 views

Create body on a sprite (box2D)

I'm quite experimented in objective C, but now i'm tried cocos2D and his features. I need to add a body on a spritesheet (if possible on a classic 'UIImageView'), in order to detect collisions after. ...
0
votes
1answer
420 views

cocos2d collision detection between two ccsprites i am using boundingBox but this method is not working [closed]

I am making a cocos2d side scroller and I am currently putting collision detection in. I have an enemy that shoots at the player. I want to have the bullets disappear when they hit the player. The ...
3
votes
1answer
353 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
1answer
122 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 ...
0
votes
1answer
816 views

Cocos2d how to correctly preload a spritesheet before the scene start?

I'm working on a game with Objective-C and Cocos2d, the game has a huge number of images, and obviously as I add images on the spritesheet (well yes I'm using spritesheets) the loading time get ...
2
votes
2answers
218 views

How do I make an equipped item affect the equipper?

I'm making a small text-based adventure in Objective-C. I have a Player class with four properties which represent the player's attributes (strength, agility, stamina, and intelligence). I also have a ...
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0answers
268 views

Image Texture Tracing Algorithm - Cocos2D Box2D

Context: I am working on a 2D Destructible Terrain engine for Cocos2D with Box2D. All images, when a level loads, have their border's traced and cached for the purposes of forming Box2D b2EdgeShape ...
5
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1answer
306 views

How can I implement a “Nyan Cat” rainbow?

I'm currently making a game similar to this Nyan Cat flash game, although I'm using cocos2d. I'm having a hard time trying to make the rainbow effect: Currently, every update call I add a piece of ...
1
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1answer
1k views

2D Destructible Terrain with Box2D / Cocos2D -> Image Tracing

Bear with me as this will be a rather lengthy post. For the last month I have been working on an open source Cocos2D, Box2D Destructible Terrain Engine. I have some questions regarding its ...
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1answer
168 views

Determining explosion radius damage - Circle to Rectangle 2D

One of the Cocos2D games I am working on has circular explosion effects. These explosion effects need to deal a percentage of their set maximum damage to all game characters (represented by ...