cocos2d is a free open-source framework for building 2D games, demos, and other graphical/interactive applications.
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1answer
92 views
how to predict enemy postion to shoot bullet same kingdom rush
i'm doing a tower defense game same kingdom rush, enemy can run curve not only linearly.
i found this link : 2D tower defense - A bullet to an enemy
but this link use only for enemy run linearly.
...
0
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1answer
70 views
Tile Maps and vertexZ order for sprites
Here is the setup. I have a orthogonal tile map made with Tiled. There are 5 layers. The bottom 4 comprise the background, while the top layer is the foreground that I will refer to as the “tree” ...
0
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0answers
63 views
Game issue occur in 4.3 Android Version?
CCScene doesn't show anything on 4.3 version?
I am working on a project in which I'm using the cocos2d_android.jar and on the 4.3 version the screen goes blank and music/ccTouches/others things ...
0
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1answer
58 views
cocos2d collision detection between two ccsprites i am using boundingBox but this method is not working
I am making a cocos2d side scroller and I am currently putting collision detection in. I have an enemy that shoots at the player. I want to have the bullets disappear when they hit the player. The ...
0
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2answers
44 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
121 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
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0answers
44 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
30 views
cocos2d playbackground music stops drawing sprites
I am using cocos2d v2 and experiencing a very strange behaviour.
I have a couple of audio tracks which are supposed to be played as background music one after another. But I noticed when these tracks ...
3
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2answers
93 views
Box2d : How to apply a force to keep swinging from left to right?
i'm losing myself in this...
Situation: Working on a game in cocos2d with box2d and I have a ropejoint between one fixed body and one dynamic body.
When I drop the dynamic body is swings from left ...
1
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1answer
73 views
Converting data file of Sprite Atlas from JSON to Cocos 2D
I have an existing Sprite Atlas with its data file in JSON format. How do I convert it for use with Cocos 2D and other frameworks ?
I tried poking around in Texture Packer which supports publishing ...
0
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1answer
67 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 = ...
0
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1answer
103 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 ...
0
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0answers
47 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
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1answer
63 views
Cocos2d how to correctly preload a spritesheet before the scene start?
I'm working on a game with Objective-C and Cocos2d, the game has a huge number of images, and obviously as I add images on the spritesheet (well yes I'm using spritesheets) the loading time get ...
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0answers
73 views
Browser resize and orientation change in cocos2d html5
I'm currently starting a new project with cocos2d-html5. But I already stumbled upon quite a problem. If I load my game in a mobile browser and change the device orientation e.g. from portrait to ...
0
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1answer
35 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. ...
1
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0answers
31 views
UITapGestureRecognizer fast tapping not working
I have initialized UITapGesture as follows:
tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap:)];
tapGestureRecognizer.numberOfTapsRequired = ...
2
votes
1answer
54 views
Display CCSprites with a delay
I am a beginner in cocos2d and I wanted to display coin CCSprites as soon as it moves off the screen with a 5 second delay. So this is what I wrote in my main gameplay layer to add 7 coins in a row:
...
0
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1answer
71 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?
1
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0answers
135 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 ...
1
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1answer
52 views
cocos2d ccTouchEnded: Removing a Touch
These are my ccTouch__ methods. Note that I am using the singular form of the functions (ie. ccTouchBegan v. ccTouchesBegan (don't know if that has anything to do with it, but it can't hurt to point ...
1
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0answers
36 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 ...
0
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1answer
55 views
Cocos2D SpriteBatchNode vrs. SpriteFrameCache… I do not see any performance difference
I have tried using both ways...
adding the .png file on the cache with SpriteFrameCache..
adding .plist with spritebatchnode adding the correspoding .png file, I didnt see any performance ...
1
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1answer
61 views
Cocos2D: Box2D body that is movable by one type of object but not another
I'm in the process of creating a simple platform game using Cocos2D 2.0 and Box2D. I'm trying to create a kind of crate object that cannot be moved by the player, but that can be moved by an elephant ...
1
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1answer
92 views
Determining explosion radius damage - Circle to Rectangle 2D
One of the Cocos2D games I am working on has circular explosion effects. These explosion effects need to deal a percentage of their set maximum damage to all game characters (represented by ...
1
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1answer
46 views
Why are my sprite sheet's frames not visible in Cocos Builder?
I have created a sprite sheet with zwoptex. Then I just dragged the .plist and .png files to my Cocos Builder project. After this I wanted to take a sprite frame and set it to a sprite:
But the ...
0
votes
1answer
76 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 ...
0
votes
2answers
40 views
Cocos2d sprite's parent not reflecting true scale value
I am encountering issues with determining a CCSprite's parent node's scale value.
In my game I have a class that extends CCLayer and scales itself based on game triggers. Certain child sprites of ...
1
vote
1answer
196 views
Setting Higher Z-Index for Sprite
For my game, I have to set highest z index for my sprite.
At present, I wrote following code but didn't work for me.
Sprite houseSprite = new Sprite(pX, pY,
...
6
votes
1answer
156 views
Best way to determine surface normal for a group of pixels?
One of my current endeavors is creating a 2D destructible terrain engine for iOS Cocos2D (See https://github.com/crebstar/PWNDestructibleTerrain ). It is in an infant stages no doubt, but I have made ...
