cocos2d-x is a cross plaform port of cocos2d-iphone using C++. It supports iOS, Mac, Android, Samsung Bada, BlackBerry Tablet OS, Windows and Linux. It has built-in bindings for Lua and Javascript.

learn more… | top users | synonyms

0
votes
2answers
1k views

cocos2dx - Custom Fragment Shader and CCRenderTexture

I have a CCRenderTexture that is filled with a sprite when the scene is loaded, as follows, canvas = CCRenderTexture::create(this->getContentSize().width, this->getContentSize().height); ...
2
votes
1answer
552 views

Pixel Perfect Collision Detection in Cocos2dx

I am trying to port the pixel perfect collision detection in Cocos2d-x the original version was made for Cocos2D and can be found here: ...
1
vote
1answer
176 views

Limiting the speed of a dragged sprite in Cocos2dx

I am trying to drag a row of sprites using ccTouchesMoved. By that I mean that there is a row of sprites (they are colored squares) lined up next to each other and if I grab one with a touch the rest ...
0
votes
1answer
36 views

Changes to myApp.js files are reverted back to normal when the project is build - Cocos2dx

I am trying to do some changes to my myApp.js file of coco2dx project for android in eclipse but I am not able to do it. I am actually trying to change the default background image of my app. But ...
0
votes
1answer
76 views

translate-scroll repeated 2d texture using opengl shader

I managed to implement an infinite 2d texture scrolling using the following shader. btw I'm using cocos2d-x 2.2.1. The vertex shader: attribute vec4 a_position; attribute vec2 a_texCoord; #ifdef ...
0
votes
1answer
242 views

CCMoveBy values on update()

Hope you can help me. This is my problem: I have a scheduled update, here I track the movements of my objects (sprites), I move them with CCMoveBy, and I need to constantly update the zOrder. For ...
0
votes
1answer
187 views

Cocos2d-x cross platform development

I want to make a game with my friends on iOs, Android, WP operating systems. We decided to use a cocos2d-x and develop the core of the game on C++. What will be the right way of developing so that we ...
0
votes
1answer
192 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 ...
0
votes
1answer
263 views

how to re-use a sprite in cocos2d-x

some times it takes time to create the sprite structures in the scene, I might need to setup structures inside this sprite to meet requirement, thus I would hope to reuse such structures with the game ...
-1
votes
1answer
91 views

Collision function calls before colliding

My Box2D contact listener class is calling post solve and beginning the contact function before colliding? This is causing my object to bounce back before hitting the ground. What could be causing ...
-2
votes
1answer
585 views

How to read key value pair in cocos2dx from txt file?

I this is the first time I am developing for BB10 OS using cocos2dx. I need to read key value pair in Cocos2Dx. eg: Skill= 5 Power= Awesome The target is Blackberry 10OS and using QNX ...
2
votes
0answers
323 views

Not able to change the background of the scene in cocos2dx android

I have started Game Development using Cocos2d-x. And started with HelloWorld sample game. I am able to run this sample game. But when I try to change the Background Color, I am getting error in ...
2
votes
0answers
290 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 ...
1
vote
0answers
294 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
369 views

cocos2d-xna CCScale9Sprite usage

I'm trying to get a CCControlButton to render on my game. Using a basic CCScale9Sprite as the button's background works using the following: var myScale9Sprite = ...
1
vote
0answers
111 views

Masking a CCLayer

I have a CCLayer (itemLayer) that has a bunch of CCMenuItemImage (itemButton) objects in it placed vertically in a column. These itemButton objects go way past the bounds of the screen and the ...
1
vote
0answers
220 views

How do I use Objective-C libraries in Cocos2d-x?

We've created several libraries in Objective-C in the past, and now we're moving to the Cocos2d-x game engine. We can't figure out how to reference and use those libraries (we've also tried compiling ...
1
vote
0answers
339 views

Adding Libxml2 to an Android project under Cocos2D-X

I am having problems porting Libxml2. I like it because it works under windows like a charm with <libxml/parser.h>. When I reference the libraries I just cannot find the right path to them, ...
0
votes
0answers
31 views

Determine speed of sprite

I'm trying to calculate the speed of my sprites in Cocos2d but I'm having some difficulties. I'm not sure which units of time/speed cocos2d uses. My background sprite moves 2 positions to left each ...
0
votes
0answers
33 views

Cocos2d-x , setup the debug environment and remove the red marks in my eclipse

I am struggling with this issue since last week. I still can’t figure out where is the error. My code is compiling perfect if I restart the eclipse. but, when I edit the c++ file it shows red marks ...
0
votes
0answers
17 views

Trying to make a mouseJoint with Box2D on Cocos2D-X

I'm trying to obtain this result: http://appcodingeasy.com/Gideros-Mobile/Dragging-Box2d-object-in-Gideros-Mobile (there's a video - YouTube). But I'm missing something, because if I follow the code ...
0
votes
0answers
135 views

cocos2d-x-3.0rc0b Build fails

I have created a cpp Cross platform project with cocos2d-x-3.0rc0 on windows8 , but i can't build the android project. I have the following result: C:\home\MyGame\proj.android\proj.android>python ...
0
votes
0answers
37 views

cocos2d-html5 & cocos2d-js compatibility

Currently we are shifting towards html5 dev for a few customers and I'm wondering how compatible are the 2 javascript versions of cocos2dx (cocos2d-html5 & cocos2d-x with javascript bindings). ...
0
votes
0answers
79 views

box2d's ApplyForce works wrong after cocos2d-x's replaceScene

i'm practicing making a breakout game, using cocos2d-x 3.x and box2d, referencing here. i create a ball in the scene's init function and apply force. when ball hits bottom wall, if i touch screen ...
0
votes
0answers
137 views

Should I drawing directly on CCLayer or CCSprite?

Now I am a little confused in my cocos2d-x cpp project. I want to draw lines with user's finger touch. Following the screenshot of a CCScene: In the screen, there are two squares. I want show an ...
0
votes
0answers
208 views

Design virtual resolution for 2D development in Unity

I came to Unity with Cocos2D-X experience in mind. In Cocos2D-X, I can choose a "virtual" screen resolution size to rely on the entire game during development and the game will automatically adapt to ...
0
votes
0answers
308 views

Cocos2dx- Draw primitives(polygons) on Update

In my game I'm trying to draw polygons on on each step i.e. update method. I call draw() method to draw new polygon with dynamic vertices. Following is my code: void HelloWorld::draw () { ...
0
votes
0answers
74 views

cocos2dx and tweenings libs

I know cocos2dx has built-in actions like move-to, etc... to do some kind of tweening but haven't seen any way for example to add different easy ins and outs. Browsing the documentation haven't found ...
0
votes
0answers
198 views

syncing multiple audio tracks on Android

I'm trying to create a music based game (similar to "my singing monsters). the idea is that I have a scene where I can place and remove a few different characters from the scene, each character has a ...
0
votes
0answers
100 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
246 views

Apply various effects to alpha channel using cocos2dx

I have some CCSprite with images which contain shadows. Apart from the shadows and the background the images are opaque. I'd like to be able to draw some CCSprite but without the shadows when they are ...
0
votes
0answers
848 views

Getting Image From URL , Using curl in Cocos2dx C++

I am using curl in C++ to get an Image from a URL for a Cocos2dx Game. The Code is Working Fine. And using CCImage And cocos2d::CCTexture2D I create a Sprite and Add it on my Layer. The Sprite is ...
0
votes
0answers
128 views

Weld Joint Box2d not run

i have two object like this : b2WeldJointDef weldJoint; //frist body bodyDefXich.type = b2_dynamicBody; bodyDefXich.position.Set(3, 2); b2FixtureDef fixtureDef; b2PolygonShape ...