cocos2d for iPhone is a free open-source framework for building 2D games, demos, and other graphical/interactive applications for iOS devices.

learn more… | top users | synonyms

1
vote
2answers
326 views

Cocos2d savegame cctmxtiledmap

my game features several tilemaps that are initially loaded from a tmx file and modified during gameplay. How can I save the changed tilemaps in a save game? Will NSCoding do the trick here or is the ...
0
votes
2answers
296 views

Cocos2d: Moving background on update: offsett issue

working with Objective C, iOS and Cocos2d I am developing a vertical scrolling shooter game for iPhone (retina display models with 640 width x 960 height pixel resolution). My basic algorithm works ...
0
votes
2answers
90 views

How to define axis of Sprites in a CCAnimation?

I'm struggling to find how to define a kind of axis in my frames, when my sprite punches it moves back. I want to define the head as a pivot for the other sprites with different sizes. How can I ...
-1
votes
2answers
370 views

Drawing line from sprite with a touch

I am working with cocos2d for the iPhone and I have a question about how to implement the following. I have a circle shaped sprite on my layer. When I touch the sprite and move my finger a line must ...
3
votes
1answer
242 views

How can I apply a “genie animation” to a CCSprite?

I am new to Cocos2D and following this tutorial. I want to animate a CCSprite with the genie effect that OS X uses for hiding windows to the dock and showing them again. Here's an example from an ...
2
votes
1answer
549 views

Xcode workspace with Unity3D as a sub-project?

Let's say we're developing a 2D game with Cocos2d-iPhone and UIKit and CoreAnimation. But we're also considering leveraging the 3D capabilities of Unity 3D. Is it possible that we add the ...
1
vote
1answer
140 views

How to pause and unpause the Particular action of a sprite?

My game has a sprite representing a character. When the character picks up an item, the sprite should stop moving for a period of time. I use CCbezier to make the sprite move, like this: ...
1
vote
1answer
147 views

Dynamic Hills like Contre Jour in Cocos2d

I'm interested in maps/environments which are flexible and change at runtime, such as those in Contre Jour. I have looked for a long time to find out how to make this effect, but I couldn't find an ...
1
vote
1answer
168 views

Cocos-2D asteroids style movement (iOS)

So I have a CCSprite subclass, well call this Spaceship. Spaceship needs to move on a loop, until I say othersise by calling a method. The method should look something like - ...
1
vote
1answer
619 views

Retrieving latest touch to interrupt another

In Cocos2D for iPhone, I want the latest touch event to interrupt another and ignore the last touch. Let me know if I need to elaborate more, but basically my game consists of a lot of finger ...
0
votes
1answer
40 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 ...
0
votes
1answer
60 views

Stop schedule on gameOver

I have 2 events running through time in my game. I want that when gameover starts, this events stops running This is my code: - (void)onEnter { [super onEnter]; [self ...
0
votes
1answer
154 views

How to use UILongPressGestureRecognizer with sprite drag & wait?

May be it's asked before also but I couldn't find any good answer. Please tell me how this can be implemented with UILongPressGestureRecognizer? A user drags a sprite from X location to Y location. ...
0
votes
1answer
266 views

Multi Resolution graphic for ios 4 and ios 5

i have used cocos2d-x to code game for ios 4, ios 4s, ios 5 with screen size (3.5 inch and 4 inch) First, my resource are desgined for ios 4 and ios 4s with screen size : 3.5 inch. so if i want to ...
-1
votes
1answer
543 views

How can I solve these errors when using SimpleAudioEngine?

I want to use SimpleAudioEngine for the music in a cocos2d game I'm working on. When I import SimpleAudioEngine.h in my game layer I get syntax errors in CVPixelBuffer.h and CMFormatDescription.h. ...
-3
votes
1answer
181 views

Simple question about a cocos2d based game template

I am learning a cocos2d based Game template tutorial from here and now I am at this point of the tutorial. My question is, how can i run 30 different scenes in 30 different levels of 5 chapter? Now I ...
3
votes
0answers
276 views

How to achieve 'forward' movement (into the screen) using Cocos2D?

I'm interested in creating a 2.5D first-person shooter (like Doom) and I currently don't understand how to implement the player moving forward. The player will also be able to browse around the world ...
2
votes
0answers
370 views

Can I use a shader with 2 different textures in Cocos2D (x)?

We are evaluating a variety of different graphic engines for use in our game and we want to be able to use 2 different textures for many of our sprite maps. One sprite map would be the standard RGBA ...
2
votes
0answers
361 views

how to attach a body to a rope and making it swing to another rope

I've set some ropes (using cocos2d and box2d) and would like to attach a body to one rope in such a way that it can swing to another rope. I am not sure how to go about this. I read making and object ...
1
vote
0answers
41 views

Why AnchorPoint doesn't affect `CCLayer` Positioning?

I think there is a different between CCLayer and CCNode behavior when I change their AnchorPoint. I will describe what I mean and please somebody explain it ? Scenario: I start with CCNode CCNode ...
1
vote
0answers
52 views

Building a guided tracing scene

I'm trying to figure out an approach to creating a cocos2d scene that would help kiddos learn to draw letters of the alphabet. Right now I am just using Apple’s PaintView demo code and applying an ...
1
vote
0answers
368 views

Cocos2d-x CCFollow Zooming issue

Hi I am currently building a cocos2d-x game which incorporates pinch zoom using CCLayerPanZoom class which can be found here The problem is basically when using CCFollow and zooming and out, it ...
1
vote
0answers
288 views

iOS cocos2d - sprite gets stuck in collision detection

I'm developing a top down game in cocos2d and I have collision code that checks collisions between enemies and the player so that they don't go through each other. The code seems to work but the ...
1
vote
0answers
190 views

Detect Sprites, they are in Shape or Not which random draw in Cocos2d

I have searched a lot on web and found some of help ful links as exact my question. Link 1 Link 2 But still i am not success to achieve this, i have done some of code lines, as like draw line by ...
1
vote
0answers
797 views

How to properly add texture to multi-fixture/shape b2Body

Hello to everyone this is my first poste here I hope that will be not fail start. At start I must say I make part 1 in Ray's Tutorial "How To Make A Game Like Fruit Ninja With Box2D and Cocos2D". But ...
1
vote
0answers
248 views

Design pattern for procedural terrain assets

I'm developing a procedural terrain class at the moment and am stuck on the correct design pattern. The terrain is 2D and is constructed from a series of (x,y) points. I currently have a method that ...
1
vote
0answers
356 views

Zoom Layer centered on a Sprite

I am in process of developing a small game where a space-ship travels through a layer (doh!), in some situations the spaceship comes close to an enemy space ship, and the whole layer is zoomed in on ...
1
vote
0answers
153 views

How do I control an animation with a drag command?

I want to play an animation when someone drags a sprite from it's default position to another selected position. If they drag half of the selected position then animation will be play half. For ...
1
vote
0answers
518 views

Cocos2d and Body with few collision shapes using chipmunk

I'm using Cocos2d (0.99.5) with chipmunk physics engine. Currently I'm trying to place a body into space which is combined from few circle shapes. Let's say I have a corresponding sprite image with ...
0
votes
0answers
26 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 = ...
0
votes
0answers
56 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
11 views

Complex Body with multiple BodyDefs

My complex body is made up of several parts some of which are static and some are dynamic and have specific positions relative to each other. Because the static/dynamic property and position goes in ...
0
votes
0answers
124 views

Require game logic like temple run

I am new at game development but I have done some work in cocos2dx for iphone. I am interested to develop a game like temple run. I read that temple run is 2D game feel like 3D but I believe that I ...
0
votes
0answers
60 views

How do I get a sprite's angle after collision?

I'm using Cocos2d (version 3) and I want my hero sprite to be jostled around by incoming enemy sprites. The Chipmunk-based physics work, but I need some way to track the rotation of the sprite after a ...
0
votes
0answers
57 views

Get Facebook Picture in Cocos2d-iphone V3

I'm trying to get the profile picture from Facebook, but I'm getting the following error: Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UIImage ...
0
votes
0answers
34 views

Prismatic Joint causes a crash-Box2D(cocos2d)

tried to set up a prismatic joint, but I get this error upon run time: Assertion failed: (IsLocked() == false), function CreateBody, file ...
0
votes
0answers
229 views

OpenGL error 0x0506 in -[CCSprite draw] 530 to run project on ios divice in cocos2d?

I am running my cocos2d program on simulator. It works fine but when I run it on device, it throws error OpenGL error 0x0506 in -[CCSprite draw] 530. In my program I want to push one scene to another ...
0
votes
0answers
62 views

Push viewcontroller to ccscene take moretime and more memory uses in cocos2d?

Hello friends I am push ViewController to CCscene successfully but when I click on "Push Button" it takes 5-6 seconds to push to CCScene. Also, each time memory use increases. It's not smooth. ...
0
votes
0answers
195 views

Cocos2D - Simulating infinite scrolling

I have a BIG problem!! I want to make something like old space shooter games like “Asteroids”, where the ship, when going out of the screen, is reappearing at the other side. For example, when the ...
0
votes
0answers
130 views

How do I find the rotation point given a touch anchor, new position and new rotation?

I've got an Cocos2d layer which anchorPoint, position and rotation (according to http://www.qcmat.com/understanding-anchorpoint-in-cocos2d/) vary when the pinch zoom gestures. Everything works fine. ...
0
votes
0answers
113 views

cocos2d - exclude GUI layer transformation

I have a game layer that should be pannable and pinchable and a GUI layer as an overlay that's excluded from the transformations. I added the pinch and pan gesture recognizer to the view and set the ...
0
votes
0answers
400 views

How to make and correctly use progress bar in cocos2d-iphone?

I have a game that uses a progress bar to inform player of level of certain stats of the player. For example hunger, when it starts at zero and slowly adds up to maximum bar. When he eats the hunger ...
-1
votes
0answers
23 views

Isometric layer moving inside map

i'm created isometric map and now trying to limit layer moving. Main idea, that i have left bottom, right bottom, left top, right top points, that camera can not move outside, so player will not see ...