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

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2answers
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Rendering shadow sprites in cocos2d-x

I am writing a 2D game with cocos2d-x. I want to put a "shadow" sprite on a background sprite using the equation: MAX(0, Cd * 1 - Cs * S) where Cd is the destination color (that is, a background ...
2
votes
2answers
261 views

Dynamic Hills like Contre Jour in Cocos2d

I'm interested in maps/environments which are flexible and change at runtime, such as those in Contre Jour. I have looked for a long time to find out how to make this effect, but I couldn't find an ...
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vote
2answers
118 views

How to define axis of Sprites in a CCAnimation?

I'm struggling to find how to define a kind of axis in my frames, when my sprite punches it moves back. I want to define the head as a pivot for the other sprites with different sizes. How can I ...
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vote
2answers
157 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 ...
-1
votes
2answers
74 views

Change sprite position

I have Sprite and i want change my Sprite position when score == 2 score = 0; auto bird = Sprite::create("bird.png"); bird->setPosition(Point(-visibleSize.width, ...
3
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1answer
141 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 ...
2
votes
1answer
441 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
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1answer
449 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
157 views

Right-To-Left Text Direction in Cocos2dx

I want to use Persian/Arabic text beside English in whether Label or ui::Text. Persian is a Right-to-Left and English is a Left-to-Right language and so I have problem to combine them in one string. ...
1
vote
1answer
132 views

How can I use CCClippingNode to trim the top and bottom from a CCTableView?

I'm fairly new to Cocos2d and struggling with sizing a CCTableView. How can its height be controlled so that I have space at the top and the bottom? I'm trying to visually wrap the top and bottom of ...
1
vote
1answer
275 views

Cocos2d/Cocos2d-x Attaching an arrow (sprite) to another body sprite (person)

I am trying to set up a simple bow and arrow game. When the arrow hits the enemy body, the arrow's body is deleted and the arrow sprite continues to update, keeping the position correct in relation to ...
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vote
1answer
1k views

How to pause and unpause the Particular action of a sprite?

My game has a sprite representing a character. When the character picks up an item, the sprite should stop moving for a period of time. I use CCbezier to make the sprite move, like this: ...
1
vote
1answer
236 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 - ...
0
votes
1answer
304 views

How to use Cocos2dJS to connect to a Socket.IO server?

How can I connect to a nodejs socket.io server from a cocos2djs game? I've google all the way to no avail. I tried this but it does not work: socket = io.connect('http://192.168.254.102:7714'); if ( ...
0
votes
1answer
128 views

Scrolling effect after touch

i'm making map for a game and need to make scrolling of map, so the main thing what i need is to calculate speed and move layer after player remove finger from screen. I make it my own, but i think ...
0
votes
1answer
202 views

Do SpriteBuilder's Smart Sprite Sheet need to be loaded to memory?

When I create an Smart Sprite Sheet Folder using SpriteBuilder and publish it, must I load that SpriteSheet into memory "FrameCache" with code or does SpriteBuilder do this automatically (so I just ...
-1
votes
1answer
36 views

cocos2d-android collision map

How collision map? I have call: // Get TMX Map and associated layers/groups _map = CCTMXTiledMap.tiledMap("mapdemo.tmx"); _background = _map.layerNamed("Background"); _objects = ...
-1
votes
1answer
153 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 ...
-1
votes
1answer
625 views

How can I solve these errors when using SimpleAudioEngine?

I want to use SimpleAudioEngine for the music in a cocos2d game I'm working on. When I import SimpleAudioEngine.h in my game layer I get syntax errors in CVPixelBuffer.h and CMFormatDescription.h. ...
-2
votes
1answer
186 views

Error running an Action in Cocos2d-x

In my game I have a "rocket" type and I want to run a sequence of actions on it. At first it must run an explosion animation and then remove itself from the game. For this I used the following code, ...
-3
votes
1answer
185 views

Simple question about a cocos2d based game template

I am learning a cocos2d based Game template tutorial from here and now I am at this point of the tutorial. My question is, how can i run 30 different scenes in 30 different levels of 5 chapter? Now I ...
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votes
1answer
274 views

Why does this CCSprite subclass code throw an exception?

I have one problem in inheriting CCSprites in Java. Here is part of my code: public class Block extends CCSprite { static Block temp=null; static Block newBlock(tetrominoTypes blockType) { ...
2
votes
0answers
505 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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0answers
48 views

Turn Based Game Match Data in iOS

Hi I’m working on turn based game development using turn based API from Apple’s GameKit framework. My game is 2 player strategy game. Currently I’m facing the issue match data update on game play ...
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0answers
25 views

Best way to transition between multiple Cocostudio defined scenes

I'm designing a game that has to switch between multiple game scenes. Each scene has been created in cocostudio and is imported into the code as a json file as: var obj = ccs.load(res.Symbols_json); ...
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0answers
53 views

Implementing debug “overlay” info

This question is actually about GameEngine2D which is part of PSM SDK (for PlayStation Vita development), however as stated in documentation it's loosely based on cocos2d library. I hope that my ...
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0answers
217 views

How to change texture from pvr.ccz in Cocos2d?

I'm using .pvr.ccz file that texturePacker application created for me , I created a Sprite that it's image choosed from this file(.pvr.ccz) like below: CCSprite *mySprite = ...
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0answers
64 views

Building a guided tracing scene

I'm trying to figure out an approach to creating a cocos2d scene that would help kiddos learn to draw letters of the alphabet. Right now I am just using Apple’s PaintView demo code and applying an ...
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0answers
549 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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0answers
220 views

Using fully cropped sprites with TexturePacker and Cocos2d

When using texturepacker, you can set your trim-mode to crop. This is nice, because when a sprite loads in cocos2d your bounding box will only be the visible area of your sprite - which is useful for ...
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0answers
296 views

Image Texture Tracing Algorithm - Cocos2D Box2D

Context: I am working on a 2D Destructible Terrain engine for Cocos2D with Box2D. All images, when a level loads, have their border's traced and cached for the purposes of forming Box2D b2EdgeShape ...
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0answers
200 views

Using CAShaperLayer within COCOS2d

My class X is interited from CCLayer. @interface X : CCLayer Then in X, I added an instance variable of type CAShapeLayer. CAShapeLayer *_Circle I drew the Circle using UIBezierPath. Now if I try ...
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0answers
702 views

How to Store the game score in android cocos2d

I calculates the score in game project using android cocos2d, in that game after finishing the first level it goes to the next level, so i want to store that first level score and also add next level ...
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0answers
48 views

Cocos framework gives large Android builds than cocos2d-x

This question is regarding Project Architecture and workflow. I have an installation of cocos2d-x and Cocos Studio with Cocos Framework ( version 3.6). I carried out different build tests with hello ...
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0answers
178 views

Using Cocos2dx with Android Studio

Has anyone got Android Studio to work with Android Studio? I can get the generated project to work with proj.android, and add the NDK path to local.properties but I can't get it to rebuild after I ...
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0answers
92 views

how to build cocos2d-JS game as a native android app?

I have a cocos2d-JS game which runs in HTML5. How to I build it for android? The part I don't understand is how link cocos2d-JS to cocos2d-x. I know there's JavaScript bindings, but I can't find any ...
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0answers
71 views

Cocos2dx How to show different parts of a scene in a split screen

I come from an SFML background and you could show different parts of a scene in split screens by manipulating sf::View. Is there any way to do it with Cocos2dx? I plan to make a split screen game but ...
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0answers
90 views

Show emoji colors in CCLabelTTF in Cocos2D v2.0

Is there a way to show the colors of emoji characters in a CCLabelTTF? As it stands, all my emojis appear monotoned in the color set by the CCLabelTTF. If not, is there an alternative CCLabel I should ...
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0answers
142 views

Cocos2d js database connection from javascript

I have been considering to write a game in cocos2d js, that I wanted to be a turn based multiplayer game. I can't seem to figure out if it is possible with cocos2d js newest version to just add the ...
0
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0answers
115 views

Cocos2d v3 - addChild method make performance problems

i have currently a performance problem with the addChild method in cocos2d version 3.3. My scenario is currently that i have about ten CCNode which holds a bundle of other CCNode (about 500), i called ...
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0answers
63 views

Using Tile Maps with cocos2d - how do I handle a large amount of images?

I am building a game where the users (players) can build their own town. There they can build houses, add furniture to the houses etc etc. Basically similar to The Sims. I am using the Tiled Map ...
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0answers
102 views

Cocos2D texture distorted on android devices

The textuers are distorted (randomly) on some devices (randomly again). The game is working on IOS without problem. Checked adb logcat and I got some errors. Searched the errors but not found any ...
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0answers
66 views

CCTextField won't appear

I can't seem to add a CCTextField in my physics node, I tried all different methods, but it's still not happening. Here's my code: CCTextField *tf = [[CCTextField alloc] init]; tf.contentSize = ...
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0answers
183 views

How to get location of sprite placed on rotating circle in Cocos2d android?

I am developing a game using Cocos2d, and I got stuck when trying to find the location of a sprite placed on a rotating circle on the background. When I hit at a certain position on the circle it's ...
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0answers
244 views

Cocos2D v3 and Physics simulation on server

I'm trying to develop a real time multiplayer game using Cococs2d v3. The game is basically a side scrolling racing game. I wanted to develop the client using Cococs2d for iPhone, and the server side ...
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0answers
332 views

Cocos2D - Simulating infinite scrolling

I have a BIG problem!! I want to make something like old space shooter games like “Asteroids”, where the ship, when going out of the screen, is reappearing at the other side. For example, when the ...
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0answers
984 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 () { ...
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0answers
239 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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0answers
126 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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0answers
351 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 ...