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

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3
votes
1answer
285 views

How do I implement a selectable world map?

I want to have a selectable map of the world, preferably zoomable, in a cocos2d project. When I tap on a country, I want that country to be selected so that I can perform some other operations with ...
2
votes
1answer
148 views

Change collision action

I have a collision detection and its working fine, the problem is, that whenever my "bird" is hitting a "cloud", the cloud dissapers and i get some points. The same happens for the "sol" which it ...
1
vote
1answer
514 views

How to make a Sprite using CoreGraphics iOS - Cocos2d-iPhone

I'm trying to make a sprite that uses the graphics that are made with core graphics. I cant seem to find anything to explain how to make shapes using core graphics to create a sprite to use in ...
2
votes
2answers
1k views

How to create array with unique sprites? in cocos2d iphone

I write the code like this. This displays only one sprite (red colour bubble) with number of times and moving down, but actually I want to display different sprites (different colour bubble) every ...
0
votes
1answer
422 views

Admob banner not getting remove from superview

I am developing one 2d game using cocos2d framework, in this game i am using admob for advertising, in some classes not in all classes but admob banner is visible in every class and after some time ...
2
votes
1answer
708 views

How to get all child with same tag from CCLayer?

Actually i am working with cocos2d Game. I am using CCLayer for particular scene. now there are so many buttons means CCMenuitems are available. I want to disable that all menuitems having same tags.
2
votes
3answers
243 views

OOP in cocos2d for ios

I have been pulling my hair out trying to make an object in cocos 2d that is a CCSprite (with an image) and a CCLabelBMFont. I tried making a CCNode object and I tried making a custom CCSprite object ...
1
vote
1answer
1k views

use of undeclared identifier 'GL_TEXTURE_COORD_ARRAY'

Anyone please help me .i am working on sneakyjoystick class when i import these class some error are identified they are following :- use of undeclared identifier 'GL_TEXTURE_COORD_ARRAY' use of ...
-3
votes
1answer
429 views

My Sprite comes out the screen

If i an action moves the sprite,how can i keep the CCSprite on the screen???? this is my code: [enemy runAction:[CCSequence actions:[CCMoveBy actionWithDuration:2.0 position:ccp(-winSize.width*0.4, ...
0
votes
1answer
180 views

How to work with two layers or more in cocos2d?

I want to make a game in cocos2d. I don't know too much about it. My question is related to communication between two layers or more. For instance, let's say I want a layer with a scrolling road and ...
1
vote
1answer
498 views

Unit Testing with Cocos2D

How to implement Unit Testing with Cocos2D framework? What are the good practices? Is there any testing framework like JUnit Framework at Eclipse for Android?
3
votes
1answer
189 views

Issue with TurnBased Multiplayer Game in Game-kit

I am working with cocos2d game in which i am implementing Game-kit. My game supports multiplayer option. Actually as given example Raywenderlich link. I am GKTurnBasedMultiplayer class from Game-kit. ...
-1
votes
2answers
450 views

2D animations frames vs 3D animation for small indie project: timing considerations

pretty lame question but was wondering.. I am developing a 2D game using Cocos2D for iOS. The art work till now is all 2D (is a shooter game) but some of the characters would benefit of complex ...
0
votes
1answer
193 views

Creating multiple fixtures in one body

I want to create this type of fixture in one body. Here square and circle both are different fixtures but attach to one body. How do I do this?
1
vote
2answers
209 views

Confusing box2d forces

Hello Friends. This is my demo game screen-shoot. Here i am using three buttons. Right-bottom button is used for jump and left-bottom buttons used for move left and right. I have some questions 1) ...
1
vote
0answers
737 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
1answer
127 views

Sprite Body can not stop

Hey i have issue regarding jump sprite body. In my code i am using moveLeft and moveRight Button and when i am press moveRight Button using following code if (moveRight.active==YES) { ...
0
votes
1answer
343 views

moving box2d bodies in an arc or curved path

How can I make a b2Body move in a arc-like or curved path? I have heard about cocos2d Bezier curve function (ccBezier) but this is for moving cocos2d sprites. Or can it be modified to move box2d ...
2
votes
1answer
286 views

Wheel rotation, to change velocity of vehicle

I update the velocity of my vehicle like so: [v setVelocity: ((2 * 3.14 * 100 * (wheel.getRotationValue / 360) / 30)) * gameSpeed]; // update on 60 fps this gets velocity on all frames divide by 60 ...
0
votes
1answer
513 views

EXC_BAD_ACCESS error when box2d joint is destroyed

When I destroy the weldJoint in the update method (see below) I get an EXC_BAD_ACCESS error pointing to the line world->DestroyJoint(weldJoint); in the update method below: -(void) update: ...
1
vote
1answer
76 views

Issues with background coordinate configuration in objective c with runAction?

In my game I want to have two backgrounds going one after the other creating a continuous loop moving to the left. However, right now one goes, and the other does not follow it. Here's what I ...
1
vote
1answer
188 views

CCTMXTiledMap continuous scrolling;

I have a vertical shooter, the game scrolls TMXTiledMap, and when it runs out I want it to load next map and scroll them seamlessly without interruption. How do I achieve that? Here is my scrolling ...
0
votes
0answers
327 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
vote
1answer
1k views

What is the correct way of changing image of existing CCSprite?

How do I correctly change sprite to show another image? Or to have another texture? This is the way I do it now. When I need to change sprite image I increase state variable. So i have one picture for ...
2
votes
1answer
504 views

CCsprite.flipX not working!

Here is my function, it makes random point on the ground and makes my sprite go there. If the x position of location is less then position of my sprite, I flip my sprite so it looked left (it looks ...
2
votes
4answers
2k views

How to separate my rendering from game loop?

If I have a (complex) operation that takes a long time for it to finish, for instance, a couple of seconds, my frame rate drops far below the acceptable. How could I still implement it while it is not ...
2
votes
2answers
943 views

Cocos2d v2.0 and OpenGL 2.0/1.0: where to start

I started developing my very first game 3 months ago using Cocos2d 2.0 for iPhone. I am now in the stage where I'd like to add some cool effects to the bullets and some special weapons (see my ...
0
votes
1answer
184 views

How to use generic level editors with my arbitary code?

I have a game, breakout clone. It has a Block class that contains CCSprite as a property. Usually I made levels by manually setting those blocks to positions. Here comes the question, how do I use ...
1
vote
1answer
297 views

Cocos2d: Using single timer/scheduler for multiple sprites

want to know if is it possible to use single timer or scheduler method for multiple sprites ? Like I am now working on a game and there could be any number of sprites and i want to perform some ...
2
votes
0answers
302 views

Box2d based tile map game scrolling problem [closed]

I am using a tile based game and also used a joystick. Using joystick sprite body move perfectly but tile map can not scroll. -(void)setCenterOfScreen:(b2Vec2)position { int ...
3
votes
2answers
449 views

Creating 2D waveform for Cocos2d game

I'd like to have a Waveform in my iPhone game that I am developing using Cocos2d v2.0. That's the ideal wave I'd like to achieve. A simpler wave which I would still be happy with is this one. ...
1
vote
1answer
3k views

Accelerometer to move player left and right

Please take a look on my code and help me to find problem. I used this tutorial: COCOS2D_ACCELEROMETER_MOVEMENT This works only sometime….some time not move..How can I resolve this problem? Here is ...
-2
votes
1answer
1k 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 ...
0
votes
1answer
469 views

Cocos2d Box2d contact listener call different method in collided object

I have the building object, wen it hit with other, i want to call some method inside it. Building.mm -(void)printTest { NSLog(@"printTest method work correctly"); } in my ContactListener i ...
2
votes
2answers
986 views

Using pixel art on small high resolution screens

I'm making a game and I would like to utilize pixel art as my style. But I faced a problem, modern displays on my target platform (iOS) have extremely high resolution. So if my artist makes me some ...
1
vote
1answer
520 views

How make a laser path prediction line like a “slingshot cowboy” game?

How so I make a laser path prediction line like a “slingshot cowboy” game in cocos2d or box2d and select the target like "slingshot cowboy" game.
0
votes
1answer
304 views

How to store level information on iOS

Let's imagine I have a breakout game. I make a level like this: For columns < max columns For rows < max rows Create sprite from file, put it on some position based on ...
1
vote
0answers
229 views

Getting contour without the background [closed]

I have a texture and vertex which are needed to create a set of closed polygons. For this purpose I use these functions: Code for create texture: CCSprite* spr = ...
1
vote
1answer
270 views

How do I identify a collision with a specific body?

How can I identify when the ground body collides with another b2Body? I can use b2ContactListener to be notified of collision events, but how do I tell which bodies collided?
-1
votes
2answers
393 views

Good open source iOS games? [closed]

I would like to see how things are done in modern iOS games, I am especially interested in Cocos2D games. I need a game that will compile (warnings are ok) and since most of the project I have seen ...
1
vote
1answer
204 views

Touch area double sized on newer device

I am developing a universal puzzle game, in which I have used separate image for iPhone4 and for iPhone3, iPhone4 image is double in size of iPhone3 image. My issue is for iPhone4, touch area of image ...
-2
votes
1answer
191 views

How to begin stylising a game [closed]

I'm currently in the late stages of development for a platform-esque iPhone game and am beginning to look into the graphics. Being a developer through-and-through, I have limited design skills and my ...
1
vote
1answer
113 views

Why is the MaskBit maxed out

Hi there for some reason the maskbit of my b2FixtureDef is being maxxed out and im not sure why Here is the declaration of the items that are used in the game enum PhysicBits { PB_NONE = 0x0000, ...
1
vote
3answers
1k views

Moving camera in large view

In my cocos2d app I was wondering how to make a CCSprite move on the screen but have the screen focused on the CCSprite, so when the sprite moves the view moves with the CCSprite. Is there a tutorial ...
-2
votes
1answer
943 views

Rolling a 3d die in cocos2d

How can I have a 6 sided die in my cocos2d game and when the device is shaked the die rolls and shows a number? I would also use UIKit if it was necessary.
0
votes
1answer
286 views

Touching a CGRect

In my cocos2d app I am trying to determine when a CCSprite is touched Here is what I have: -(BOOL)ccTouchBegan:(UITouch *)touch withEvent:(UIEvent *)event{ NSMutableArray *targetsToDelete = ...
0
votes
2answers
159 views

Falling images that can be pressed

In my cocos2d app I am trying to make images fall from the top of the screen and detect when they are pressed. I am having a hard time. Can anyone help me achieve this? Thanks.
2
votes
1answer
180 views

Game speed cubic growth

Is it possible, using delta in my update method to increase a game speed variable exponentially on cubic growth (the blue line below) My maths isn't great so I'm not sure how the formula would be ...
0
votes
1answer
335 views

Keeping the CCSprite on the screen

In my cocos2d app I have a CCSprite moving on the screen but it moves off the screen. How can I prevent the CCSprite from moving off the screen? Thanks
3
votes
2answers
1k views

Cocos2D: Upgrading from OpenGL ES 1.1 to 2.0

I have recently starting upgrading my ios game to the latest Cocos2D (2.0 rc), and I am having some difficulties upgrading my texture generation code to OpenGL 2.0. In the old version I generated ...