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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12
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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 ...
9
votes
3answers
13k views

How to play animations in Cocos2d-x?

I'm new to Cocos2d-x and looking for a good way/tutorial on how to play animations in Cocos2d-x.
6
votes
1answer
655 views

Puzzle game: clipping of non-convex polygons on the figures

I have an original figure in the SVG file. I need to break it randomly on parts, an example of which is specified below: I have an idea, to use for partitioning Voronoi diagram (Fortune's algorithm). ...
4
votes
2answers
2k 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 ...
4
votes
1answer
1k views

Isometric Tile maps in Cocos2d-x

Is there an specific isometric tile map handler in cocos2d-x? I can't find any.
4
votes
1answer
794 views

Lua or C++ in Cococ2d-x

I am going to use Cocos2d-x to make a game for Android and ios, but my question is, do I use the Lua integration or only c++, I see Lua useful here because the compilation thing. Or do I use only Lua ...
3
votes
1answer
122 views

How can I speed up cocos2d game engine?

I am developing a tower-defense game and I want to permit user to change game engine speed ,for example rotation speed of towers,rockets speed ,enemies moving speed ,counters and etc proportionally. ...
3
votes
1answer
506 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 ...
3
votes
2answers
3k views

How to setup Cocos2D-X (Android) under Mac OS X?

Hi I've made a small game for iPhone that I also want to run on Android but I'm having problems setting up Cocos2D-X for Android. I've downloaded and installed Android SDK and NDK (under my ...
3
votes
2answers
7k views

Create an infinite scroll using CCParallaxNode in Cocos2D-X

I'm trying to create an infinite scroll using two images in a CCParallaxNode, making one move to the end of the scroll when it gets off the screen. I have tried several implementations but none has ...
3
votes
1answer
2k views

difference between cocos2d-x vs cocos2d-js

I'm just moving towards native apps... A friend of mine told me to start with cocos2d, I'm good in javascript. while searching google for cocos2d, and within cocos2d-x.org i found cocos2d-x ...
3
votes
1answer
4k views

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

I wrote some small games for fun myself, and never used LUA myself. but I can see people discussing lua used in games everywhere. I don't know what benefit I can get from using LUA in game ...
3
votes
3answers
3k 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 ...
3
votes
1answer
3k views

Sprite Animation using cocos2dx 2.0.2

I am trying to implement sprite animation using coco2dx. I have tried several demos, but all of them are same. While I tried, getting violation error in my code. ...
3
votes
1answer
2k views

Callback a function when a label is touched in cocos2d-x?

How do I callback a function when label is touched in cocos2d-x?
3
votes
2answers
181 views

Implementing one-way platforms in Chipmunk

I am making game in cocos2d-x, but it's the first time I am using a physics engine i.e. Chipmunk. (It's built-in to cocos2d-x.) I want to make a one-way platform: When my character jumps into a ...
3
votes
1answer
1k 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
votes
1answer
698 views

Getting the height of Keyboard on Android

Hi I need to know the height of my keyboard so I can move up some textfield I have in my app. I'm using cocos2D-X but the app don't recognize the keyboardWillShow method. Thanks
3
votes
0answers
176 views

How do I handle rope physics with fixed ends and a sliding weight?

I've been interested in rope physics recently—I've successfully implemented a simple Verlet rope with moveable ends. Now I am trying something a little different: I want to start by recreating the ...
3
votes
0answers
1k views

Deep Cloning C++ class that inherits CCNode in Cocos2dx [closed]

I'm stuck with something in Cocos2dx ... When i copy my class that inherits CCNode, i get a shallow copy of my class but the base type seem to still point to the original node address. We dont seem ...
2
votes
2answers
1k views

Implementing a sine using a bezier curve

I'm developing a 2D game using Cocos2d-x. Is possible to use CCBezierTo to parameterize a sine function?
2
votes
4answers
2k views

Different iPhone screen resolutions and game graphics

We are developing a 2D game for iPhone using cocos2d-x. The artists are drawing the raster graphic for a resoluion of 640x960. For older iPhone devices, those that have a resolution of 320x480, should ...
2
votes
4answers
6k views

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 ...
2
votes
1answer
314 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 ...
2
votes
1answer
4k views

Problem playing music and sound effects in Cocos2d-x

I'm new to Cocos2d-x and working on a mac. I'm trying to play music in my demo project but I'm unable to include "SimpleAudioEngine.h" in the default HelloWorld Project. I tried adding CocosDenshion ...
2
votes
2answers
180 views

Water silhouette shader using GLSL

I have this problem to solve using Cocos2d-x 3.x: In my game there is water represented by rectangle texture, modified by the code on the go. I also have a character moving around, rotating etc. I ...
2
votes
1answer
631 views

Spriting Animation Method

http://www.kickstarter.com/projects/539087245/spriter At 3:00 they discuss that there is a method used to separate the parts of character into individual sprites and move them saving production time ...
2
votes
2answers
704 views

Importing a windows project into android using cocos2d-x

What I am trying to do today is to import a full project to Android, but no tutorials are available for that that I have seen. My approach was to create a new android project, copy all the classes and ...
2
votes
0answers
132 views

Why AnchorPoint doesn't affect `CCLayer` Positioning?

I think there is a difference 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 ...
2
votes
0answers
231 views

Weird y offset when using custom frag shader (Cocos2d-x)

I'm trying to mask a sprite so I wrote a simple fragment shader that renders only the pixels that are not hidden under another texture (the mask). The problem is that it seems my texture has its ...
2
votes
0answers
397 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
1answer
448 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 ...
1
vote
2answers
387 views

How do I separate testable game logic from my UI in Cocos2d-x?

I read some articles on why I should separate game logic and UI code: That makes it possible to test game logic code can be independently of the rest. However, I am having trouble implementing this in ...
1
vote
2answers
401 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 ...
1
vote
1answer
405 views

How to prevent showing outside of Game Map ( Cocos2D-x ) ( Scrolling game )

I'm trying to make a tower defense game and it can zoom in/out and scrolling over my world map. How to scroll over the game and how to restrict it not to show outside of my map(black area). At below ...
1
vote
2answers
440 views

Best logic to create and drop new gems in a Match-3 game

In a simple match-3 game, with a square gems matrix creating and dropping new gems is fairly simple: when needed I generate those gems above the matrix and then I make them fall into the main matrix ...
1
vote
1answer
393 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 ...
1
vote
1answer
3k 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 ...
1
vote
2answers
1k 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, ...
1
vote
1answer
678 views

Why doesn't MoveBy work in this example?

I'd like to run an action on a sprite using the MoveBy action. After lots of attempts, I can't achieve the goal... I have issues with the MoveBy in 2 different projects, so maybe I'm missing something ...
1
vote
2answers
3k views

Problem using ccTouchesEnded/ccTouchesBegan to move sprite in cocos2d-x?

I'm using ccTouchesBegan/ccTouchesEnded to move sprite from one point to another but I'm having problem, if i give two or more consecutive inputs one by one while sprite is moving(runAction is being ...
1
vote
1answer
147 views

cocos2d-x “immediate mode”?

I have some c++ game code that draws the game state on each game-loop cycle in "immediate mode". By that I mean that the game code does not add the sprites to be drawn to any sort of "scene graph" or ...
1
vote
2answers
595 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 ...
1
vote
1answer
403 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 ...
1
vote
1answer
352 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 ...
1
vote
2answers
424 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
vote
1answer
324 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 { ...
1
vote
1answer
3k views

cocos2d-x v2.1 CCSpeed, CCRepeatForever, and CCAnimation jerky at high speed

I worked to port Tim Roadley's cocos2d-iphone example from (Box2D Driven Cocos2D Animation) to cocos2d-x to learn cocos2d-x for a project. It is all relatively simple to do, but I am suffering from ...
1
vote
3answers
2k views

CCUserDefault, iOS/Android and game updates

My game uses cocos2d-x and will be published on iOS platform first, later on Android. I save a lot of things with CCUserDefault (scores, which level was completed, number of coins taken, etc...). But ...
1
vote
2answers
494 views

How to swallow touches on CCMenu while sliding?

I'm creating a sliding menu for my game something like angry birds level selection but I'm having problem with buttons. If I accidentally touch any of the buttons while swiping the level starts to ...