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

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Cocos2D: Box2D body that is movable by one type of object but not another

I'm in the process of creating a simple platform game using Cocos2D 2.0 and Box2D. I'm trying to create a kind of crate object that cannot be moved by the player, but that can be moved by an elephant ...
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1answer
233 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 ...
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1answer
174 views

Why are my sprite sheet's frames not visible in Cocos Builder?

I have created a sprite sheet with zwoptex. Then I just dragged the .plist and .png files to my Cocos Builder project. After this I wanted to take a sprite frame and set it to a sprite: But the ...
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1answer
790 views

How to create a rectangle shape in cocos2d-android

I am new to cocos2d-android. I want to create a rectangle shape in the scene .for that i am trying to do something like this. CGRect rect = CGRect.make(x,y,70,70); But it was not displaying the ...
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2answers
426 views

Cocos2d sprite's parent not reflecting true scale value

I am encountering issues with determining a CCSprite's parent node's scale value. In my game I have a class that extends CCLayer and scales itself based on game triggers. Certain child sprites of ...
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1answer
4k views

Setting Higher Z-Index for Sprite

For my game, I have to set highest z index for my sprite. At present, I wrote following code but didn't work for me. Sprite houseSprite = new Sprite(pX, pY, textureManager....
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1answer
368 views

Best way to determine surface normal for a group of pixels?

One of my current endeavors is creating a 2D destructible terrain engine for iOS Cocos2D (See https://github.com/crebstar/PWNDestructibleTerrain ). It is in an infant stages no doubt, but I have made ...
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1answer
490 views

Sprite sheet resolutions and Tile Maps

I am making a game using Cocos2d-x and want to support multiple mobile phone resolutions and sizes. Right now I have made my game sprite sheets set on a resolution of iPad Retina's resolution of ...
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2answers
199 views

Serious gameplay issue by spawning enemies according to elapsed time

EDIT: I have changed the title as I think that this is a general gamedevelopment question but, on a technical note, I am using Cocos2d v2.0 Some time ago I had asked a question on which was the most ...
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1answer
262 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 - (void)...
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1answer
2k views

Android cocos2d getting a sprite to continuously move to a dynamic position

I tried using the MoveTo method in cocos2d to get a sprite to continuously follow my player sprite: CCMoveTo actionMove = CCMoveTo.action(actualDuration, player.getPosition()); CCSequence actions = ...
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1answer
3k views

Android cocos2d removing a sprite after animation

I have an object going across the screen with an animation using the following code: CCSpriteFrameCache.sharedSpriteFrameCache().addSpriteFrames("ninjastar.plist"); CCSpriteSheet projectileSheet = ...
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1answer
195 views

Snapping of irregular images in iphone puzzle app

I am working on puzzle app in which i need to snap irregular shapes as they come in contact of one another as i am new to game development so i dont have any idea how to achieve this functionality in ...
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1answer
530 views

How to flip card by a corner?

After searching "flip card" in google and our stackexchange site, there is no result and I have no ideas about how to flip a card by a corner. I am developing a ios card game with cocos2d, in this ...
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1answer
197 views

Exporting spritesheet for Cocos2d

I would like to know how people usually save the animations in order to load them easily in Cocos2d with as few hard-code as possible. E.G. The solution I thought of is to have one plist file ...
2
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1answer
466 views

Why am I seeing unbounded memory usage in my WP8 game?

I recently upgraded to VS2012 and tried my game out on the new WP8 emulators. I was dismayed to find out the emulator now crashes and throws an out of memory exception during my sprite loading ...
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1answer
409 views

Can I switch scenes by swipe gesture or drag?

Can I switch scenes by swipe gesture or drag? In my game, there are three main scenes, each of them has several layers which have some UI elements, these elements have some tap gesture. I already ...
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2answers
2k views

Semi Transparent Background in Scene [closed]

In my game I want to create game over scene which is semi transparent so game scene become partially visible. Game over scene contain several button that are not transparent but I need only ...
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1answer
817 views

Rotate Box Sprite With Circle Body

I want to rotate my rectangular sprite with circle body. The problem is the body doest not attached to the centre of the sprite. This was the default behaviour of the body and sprite. But I want that ...
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2answers
4k views

Repeat image on a fixed background, Cocos2D?

I'm quite new to Cocos2d, does anyone know how to create a background that would be one fixed screen (no scrolling), with a small image just repeated to the whole size of the screen - depending on ...
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0answers
129 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 ...
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1answer
445 views

Debug Render In Cocos2d Android

I want to implement debug render for cocos2d android.So I can view how bodies are created. Right now I use gdx.jar file for box2d and load that jar file following way. static { System....
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0answers
917 views

Cocos2d Vertical Doodle-Jump Like Scrolling [duplicate]

Good afternoon, For the past few days I've been making a game very similar to DoodleJump in the sense that it involves a main character, things to jump on, certain powerups and some monsters. I've ...
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1answer
366 views

Preserving Cocos2D context between UIKit screens

My app is designed to use Cocos2D in the "main game screen" but the rest of the screens are in UIKit. While I feel that this isn't ideal, I really don't have time to port the rest of the screens into ...
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0answers
619 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 ...
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1answer
1k views

3d transformation of game world keeping gameplay 2d - COCOS2D 2.0

Using: COCOS2D + iOS. I want to rotate the game world, may be loading another .tmx file for another dimensions when user want to switch dimension. the effect what I am looking for is something like ...
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1answer
248 views

Parallax With Box2d iphone

I am creating the simple game. In that game car will move and obstacles will come in the car way we will have to save that car from that obstacles. What I have done. I have created the car with the ...
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2answers
1k views

8-bit Game: To pre-scale images, or post scale my Cocos2d scene. Which is the better approach?

I'm wanting to develop a game with an 8-bit feel. Since this game is mostly for my personal enjoyment, I've set a requirement that I want my game to have an 8-Bit feel to it that is most similar the 8-...
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1answer
3k views

How to create Elastic rope / Rubber band in box2d?

I am trying to create the rubber band type or elastic rope. i ant to do something like bellow link. http://heyalda.com/smash-turtle/ Thanks,
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1answer
550 views

Remove HUD from Child Scene

For my game, I create game scene for which I set HUD to it. First my game scene use BoundCamera, so I use hud to set score text, dollar text and setting button. Now on game scene when I touch on ...
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1answer
117 views

How to create strength meter?

I am creating game like bow and arrow. I want my hero will shoot the arrow with the strength meter, how will create the power?
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1answer
429 views

Handle Multiple Scene

For my game, now I adopt the strategy to create multiple scene. For this I have to ask two question please provide your view for my and other members for improvement. I have created single ...
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1answer
836 views

How to execute AI in Cocos2d (replacing the Update method)

What is the best way to run AI in Cocos2d? I already have my AI implementations. Normally I would execute AI in my game loop by checking how much time has elapsed since last AI execution and whether ...
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1answer
241 views

Game design and SoC

I've been working on a little game for the last few months, trying to approach it as a software engineer and employ best patterns and practices in my coding. I have gotten to the point where I have to ...
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2answers
186 views

Can CCAnimations be paused?

I am new to cocos2d. I am using CCAnimation. It's working fine, except I want to pause the animation occasionally. How do I do this? Here's what I'm doing so far: [mySprite runAction:[...
2
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1answer
522 views

Blending transition in cocos2d

In my cocos2d-iphone game, I have 2 backgrounds (CCnodes), each containing a quite complex hierarchy of sprites. I would like to make a smooth transition between them: Initially, only the first ...
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2answers
2k views

Presenting game center leaderboard

I have the following code: -(void)showLeaderboard { GKLeaderboardViewController *leaderboardController = [[GKLeaderboardViewController alloc] init]; if (leaderboardController != NULL) { ...
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1answer
1k views

Integrating game center into cocos2d

I have a Cocos 2d game in which I want to have achievements and a leader-board. What are the steps I would need to take? Thanks P.S All of the tutorials I have found are outdated. So please write ...
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3answers
493 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 (...
4
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1answer
154 views

How to use a mask texture with Kobold2D

I am an iOS developer but I'm new to cocos2d. I'm working on new game, I use Kobold2D, have cocos2d installed too, and I want to make this effect: I know how is done with Flash, but can't make it ...
3
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1answer
229 views

GUI device for throwing a ball

The hero has a ball, which shall be thrown with accuracy in a court on iPhone/iPad. The player is seen from above, in a 2D view. In game play, the player reach is between 1/15 and 1/6 of the height of ...
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1answer
3k views

The best way to structure/design game code [closed]

My question is quite broad and related to the 2D game code design/architecture/structure. Usually the main game consists of the main loop where you update & render your world states. However, ...
2
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2answers
546 views

Importance of scripting engine at Cocos2d Game Engine

Each Game Engine is different and solves different problems in different ways, so the engine design does vary greatly from engine to engine (even though a lot of principles are shared from engine to ...
2
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1answer
271 views

Side scroll game with 8000xScreen_Height, which technique is best

I got one new requirement for iOS side scroll game with screen size : 8000xScreen_Height For this, tileMap is best or normal texture based is best? I need to use parallax background too. Help me to ...
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0answers
376 views

Cocos2d Tiled Dynamic Object Layer

I'm trying to develop a cocos2d tiled based game using a sort of 'dynamic' object layer. What I want to do is after the tiled map is loaded, the user can drag something into the map and that will ...
2
votes
1answer
660 views

cocos2d/OpenGL multitexturing problem

I've got a simple shader to test multitextureing the problem is both samplers are using same image as their reference. the shader code is basically just this : vec4 mid = texture2D(u_texture,...
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2answers
284 views

Crash due to removal of Elements like CCSprite from NSMutableArray

So, here's how it goes. I am currently working on Cocos2d game, which consists of many Obstacles. One obstacle gets added on the screen at an interval of 10 seconds like this. ObstacleSprite* ...
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5answers
1k views

tunnel effect cocos2d

I am looking to create a similar tunnel effect in COCOS2D (iOS). Could anyone suggest any pointers? ref Video 1 ref Video 2 Till now I have tried with several ring shape sprites with decreasing ...
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1answer
492 views

How to fly enemies like galaxian game enemies?

I am developing game like galaxian and using cocos2d with box2d .I don't have idea how to create enemies like galaxian game enemies and how do they fly over the screen. http://www.youtube.com/watch?v=...
3
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2answers
603 views

Separating UI and logic in Objective-C at iOS based Games

How to separate UI and logic in Objective-C based mobile games? To develop games, I use Cocos2d library. I need a good reference to separate my UI code from game logic code.