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

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1answer
173 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 ...
3
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1answer
125 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 ...
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1answer
184 views

How to use UILongPressGestureRecognizer with sprite drag & wait?

May be it's asked before also but I couldn't find any good answer. Please tell me how this can be implemented with UILongPressGestureRecognizer? A user drags a sprite from X location to Y location. ...
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0answers
18 views

Bes way to draw hex grid in cocos2d-js [closed]

I want to draw a hex grid with interactive hexes (like highlighting hex on mouse hover. If you didn't catch what I mean you may remember any of oldschool tbs, like ja2, or may be x-com - there were ...
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0answers
30 views

Tiled maps to limited. What should I use? [closed]

I find that cocos2d's built in support for tile maps is too limited for my case. I need to create a dynamic I.e. Mutable grid-based isometric game (like FarmVille or Simpsons: Tapped out) where I am ...
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0answers
14 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 ...
0
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1answer
75 views

Get Facebook Picture in Cocos2d-iphone V3

I'm trying to get the profile picture from Facebook, but I'm getting the following error: Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UIImage ...
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1answer
37 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 ...
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2answers
3k views

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 ...
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2answers
93 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 ...
1
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1answer
174 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 - ...
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1answer
155 views

How to read a color of a pixel from texture (cocos2d-js)?

How to read a color of a pixel at [x,y] from a texture (in cocos2d-js)?
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1answer
118 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 ...
0
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1answer
241 views

Need ideas on how to give my levels structure [closed]

I am making an iOS game for a project at school. It is going to be a tiny bit like Fruit Ninja, as in it will have different things on the screen, and when you hit them, they die, and you get points. ...
1
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1answer
134 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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1answer
104 views

Mobile: Physics and movement actions

I've been using spritekit for a while for a few small games. One thing I've noticed is that spritekit is the first game framework I've used that allows me to apply move actions to physics bodies. ...
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0answers
47 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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2answers
126 views

Finding diagonal objects of an object in 3d space

Using Unity3d, I have a array which is having 8 GameObjects in grid and one object (which is already known) is in center like this where K is already known object. All objects are equidistant from ...
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0answers
76 views

iOS + cocos2d: how to account for sprite's position for the different device dimensions in an universal app? [duplicate]

All the questions I've seen regarding iOS universal apps (with or without cocos2d) deal with the "how to add graphics to a universal app". My question is, how does the code need to be written to ...
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1answer
265 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: ...
0
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2answers
131 views

How is the environment moved in endless runner games like Tiny Wings

I've always wondered how the background seen is scrolled endlessly as the main player is moving (usually to the right). With Tiny Wings I suspect that it's somehow drawn dynamically because when ...
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0answers
33 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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1answer
432 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
309 views

How can I locate the frames of a spritesheet PNG based on this PLIST data?

Someone asked me to reskin a certain game. Now he only sent me the whole sprite PNG and PLIST files of the sprites. He instructed me to rename each sprite with the same name corresponding to each ...
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2answers
66 views

Isometric projection start point

I have a question about isometric projection: Why did in all tutorials and examples start point for isometric is in left top corner ? For example in cocos2d 3.1 my start screen point in left bottom, ...
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0answers
144 views

UI rich Strategy/RPG UI - 2D Game Engine or UI Toolkit? [closed]

I'm on the fence regarding the graphics engine of my current game and hope for some advice. This is an UI heavy strategy/rpg. Although the game is played on a (simple) 2D map, it is largely turn ...
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0answers
78 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
75 views

Is there any advantage in using sprite sheets in Cocos2d-X menus?

I am developing a game using Cocos2d-X 2.3 and Marmalade SDK 7.3.1 and I was wondering if there is difference between loading the icon images that will be used in my menu buttons from a sprite sheet ...
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115 views

cocos2d-x .. How to detect which sprites are underneath a touch event

I was wondering what the best solution is in the following scenario: Lots of sprites floating around on screen. A user can touch one sprite and drag to another sprite. Throughout this entire time, I ...
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0answers
88 views

Why AnchorPoint doesn't affect `CCLayer` Positioning?

I think there is a different 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
387 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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34 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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78 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, ...
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0answers
32 views

Maintaining a constant magnitude of speed of a CCNode's physics-body after collision with a static body

I have two CCNode class "Baffle" and "SmashBall" with there physics bodies. Here are the PhysicsBody details of Baffle // Defining the physics body CCPhysicsBody * physicsBody = ...
3
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1answer
110 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
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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: ...
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50 views

Animate a tile in coco2d-x

I am trying to animate a tile in my tile-based game using coco2d-x 3.0 I am using tileAt(ccp(x, y)) to retrieve my tile Sprite been when I am trying to apply animation an assert is jumping with : ...
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0answers
79 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 ...
3
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1answer
1k 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 ...
0
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1answer
195 views

How do I rotate a sprite with ccbezierTo in cocos2d-x?

In cocos2d-x, I move a sprite with ccbezierTo like this: // use for ccbezierTo bezier.controlPoint_1 = ccp(m_fish->getPositionX() + 200, visibleSize.height/2 + 300); bezier.controlPoint_2 = ...
1
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1answer
122 views

applyAngularVelocity causes error when called right after object instantiation

I'm trying to make a physicsBody rotate as soon as it is instantiated. CCNode* ball = [CCBReader load:@"Ball"]; [ball.physicsBody applyForce:force]; [ball.physicsBody ...
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4answers
2k views

Include Box2D libraries to a cocos2d project (iOS)

I have a problem including box2D to my cocos2d project. I've tried different ways to do it with no success. This is what I've done: I downloaded Box2D (Box2D_v2.2.1) to my project directory. Dragged ...
0
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1answer
152 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 ...
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0answers
150 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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24 views

How to use CCGrid3DActions in Cocos2d-XNA?

For example, I want to add a CCLiquid action to my player shield in my game. In my Player class: public Player() { // code snippet when creating new Player CCSprite shield = new ...
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1answer
385 views

Cocos2D - Fill a Sprite with a pattern

I have a CCSprite with a certain shape in Cocos2D and I would like to fill it with a pattern, as seen here: I've seen a lot of examples where they fill a rectangle with a pattern, or even a ...
3
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0answers
293 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 ...
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3answers
3k views

How to make game sessions like “with friends” games?

I want to make a game like "words with friends" or "chess with friends" or "Draw Something" or any of the other online multiplayer type games that are based around friends having game sessions with ...
2
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2answers
577 views

Z-order for cocos2d top-down game with sprite batching

I'm trying to understand how to create z-order system like you can see in http://www.realmofthemadgod.com/ Character is above the tree when he is in front of it and vice versa. Also, I'm planning to ...
0
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1answer
497 views

Preload in cocos2d v3

I'm trying to create a preload, but i don't know how to implement the code of this topic in cocos2d iphone v3. Since CCTextureCache has changed to CCTexture, and doesn't have sharedTextureCache ...