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.

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How do you create 2D skeletal animations without extra software? [closed]

I'm working on a Cocos2d-x game and I'm developing on Windows. What I want is to make some skeletal animations, without using a tool or extra software to do so?
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2answers
535 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 ...
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0answers
443 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 ...
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2answers
772 views

How can I list files in a folder from JavaScript in cocos2d-x?

I need to list all the files in the res folder from a JavaScript script in cocos2d-x. What would be the most efficient way to do this? To keep compatibility with Cocos2d-html5 a JavaScript-only ...
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1answer
1k views

Create tile map in Cocos2D-X by not using TMX file

I used to make a tile base game in Windows with my own tile map file, but it is a static tile map. I use an 2D array to store of my tile map. Now I want to make game in smartphone by using Cocos2D-X, ...
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2answers
471 views

Should I draw directly on a CCLayer or a 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 ...
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1answer
165 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 ...
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2answers
955 views

How to find collision detection side between two objects?

I am using box2D and I have two objects, one is bouncy ball and the other one is block. I'd like to find which side of the block is collided with, so I can only make the ball bounce when it hits the ...
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0answers
416 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 ...
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1answer
550 views

cocos2dx- set draw() method interval time

What is the default interval of draw method call in cocos2dx engine? Can we set it manually? I couldn't find much information about it online. After researching a bit I found that update() method ...
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2answers
396 views

Implementing `fling` logic without pan gesture recognizers

So I am trying to port over a simple game that I originally wrote to iphone into cocos2d-x. I've hit a minor bump however in implementing simple 'fling' logic I had in the iphone version that is ...
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0answers
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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 () { ...
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0answers
606 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 ...
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1answer
649 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 ...
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1answer
687 views

Project location to perspective fake 3D view

I am trying to implement a perspective view in a 2D soccer game, such like Nintendo World Cup. In this case, the soccer pitch will look like a isosceles trapezoid, but not a rectangle in real. Here ...
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0answers
1k views

Parallax Scrolling Road-2D [duplicate]

I'm working on a racing game which will have a top view from the back camera. The image below displays a similar example. I am confused about how to achieve the movement of the road if parallax ...
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2answers
753 views

CCMoveBy values on update()

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 setting the zOrder I've ...
3
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1answer
2k 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: ...
3
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1answer
899 views

How to implement throw curve with virtual height in a 2D side-view game

I am working on a 2d side-view soccer game that looks like this image: But now I stuck on how to implement parabola pass ball. I have found many questions corresponding to my problem: Calculating ...
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1answer
456 views

How to get position of CCSprite added to CCParallaxNode?

I have a CCparallaxNodeExtras that scrolls infinite (following the space game tutorial). I added as a child a CCSprite made of other CCSprite, like this: _backgroundNode = ...
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1answer
212 views

How do you align the edges of sprites?

If you have SpriteA and SpriteB. SpriteB is a child of SpriteA. Does anyone have a mechanism to come up with the left, right, top, side of a boundingbox() of SpriteA? What I'd like to do is align ...
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2answers
1k views

What is the differencen between ccTouchesEnded and ccTouchEnded

I'm learning cocos2d-x. Following the tutorial I found that ccTouchesEnded works perfectly in linux (and windows) but when I replace by ccTouchEnded the event isn't detected anymore. What are ...
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0answers
267 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. ...
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1answer
5k views

How to switch sprite animations in cocos2d-x?

I have a "GameCharacter" class where I have a sprite for my main character in the game, I loaded the frames and animations correctly. I can switch between animations with single touches or swiping ...
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4answers
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Cocos2d-x Finding if a CCPoint is inside a sprite rect

I'm afraid that I'm missing something. This is what I've done: I've made a scene using layers (Gimp), then I've exported the layers with the image size, that way I thought would be more easy to add ...
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1answer
2k views

How to set multiple animations in cocos2d-x

I'm currently starting with cocos2d-x to build games for blackberry/android/iOS. I have the png and plist for the animations of a character created with texturepacker. I load them with ...
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1answer
392 views

How to Initilize CCPoint Array from String?

I've got string like this: {{0,168},{20,20}}, here indicates two points. I want to get them out to initialize my CCPoint. Do you guys know how to convert this?
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1answer
580 views

Is it a good idea to use box2d to control sprite movement in a 2D game?

I'm trying to use Box2D to control sprite movement.Some burning issues are these: 1.When I trying to move the sprite on a slope or a lean barrier. The sprite will move off the slope which is not what ...
2
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1answer
655 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 ...
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1answer
307 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 ...
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2answers
2k views

Coordinate and positioning problem on iOS with cocos2d-x

I'm using cocos2d-x alongside with Marmalade and running some tests and tutorials before starting an actual project with them. So far things are working reasonably well on the windows simulator, ...
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3answers
914 views

Changing the rendering resolution while maintaining the design layout

I would like to increase the FPS of my project. Currently I would like to try reducing the resolution at which the scenes are rendered. Let's say I never want to draw more than 1280*720. What ever ...
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2answers
3k 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); ...
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2answers
384 views

Multi Resolution graphic for ios 4 and ios 5 [duplicate]

I have used cocos2d-x to develop a game for iPhone 4, iPhone 4s, iPhone 5 with different screen sizes (3.5 inch and 4 inch) First, my resource are designed for iPhone 4 and iPhone 4s with 3.5 inch ...
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1answer
1k views

Can't Build Cocos2Dx emscripten project [closed]

I need to port a Cocos2D-x project to Web (JS+HTML5). I'm trying to compile cocos2D-x samples using the emscripten project for cocos2d-x, and I've followed this tutorial ...
5
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1answer
9k views

why is Lua so important ( frequently used ) in game development [duplicate]

I have written some small games for fun myself, but never used Lua myself. I have seen people discussing Lua's use in games everywhere. The question is: What benefit can I get from using Lua in game ...
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1answer
1k views

cocos2d-x - object creation and management in game design

How do others keep track of everything going on in their games? I am working on a new game and I am quickly realizing everything that I need to keep track of. Example: Maybe a layerManager that ...
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2answers
974 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 ...
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1answer
348 views

does cocos2d cache texture automatically

I know if we want the textures cached we can use the sharedtexture manager to cache them, but since this is on mobile platform , why don't cocos2d-x just do this for all texture loads ? when creating ...
5
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2answers
3k views

How to achieve smooth movement with a fixed timestep

Previously in the update method of my game I was using a variable time step which provided very smooth movement of a player sprite except when the frame rate would drop, even slightly. At that point I ...
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1answer
1k views

cocos2d-x export plist from images in windows free tool to use [closed]

as i learn to use cocos2d-x in the part on which i need to animate sprite images all the tutorials shows how to use something that called plist file that maps the coordinates of the images clips . ...
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3answers
4k views

How to use facebook sdk on a cocos2dx-project

I'm doing a game cocos2d-x, when user gets a high score, I want them to touch on the Facebook icon and share the high score on their Facebook account timeline. tutorials on facebook.developer.com ...
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0answers
708 views

cocos2d-xna CCScale9Sprite usage [closed]

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 = ...
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1answer
405 views

are most 2D games tille based? [closed]

So I'm beginning the planing phase for a 2D game that I hope to deploy for iPhone, Android, and maybe windows phone, and I am writing it in Cocos2DX and I'm looking around for map editors that I could ...
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1answer
1k views

CCSequence with two CCAction

I have two CCActions : CCAction *a; CCAction *b; so how to use CCSequence with two CCActions Thanks
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1answer
765 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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0answers
187 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 ...
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1answer
422 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 { ...
2
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0answers
554 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

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 ...