cocos2d-iphone

问题 I am developing a cocos2d game. I need to make it universal. Problem is that I want to use minimun amount of images to keep the universal binary as small as possible. Is there any possibility that I can use same images I am using for iphone, retina and iPad somehow? If yes, how can I do that? What image size and quality should it be? Any suggestion? Thanks and Best regards 回答1: As for suggestions: provide HD resolution images for Retina devices and iPad, provide SD resolution images for non

问题 I am using cocos2d 2.0. Here on one scene where i load data in tableview i get error saying "OpenGL error 0x0502 in -[CCSprite draw] 530" in log window . App runs well I searched and i realised there are some shader files missing. I have made sure all my files are there and compile sources are also up to date. But on on link i got some solution saying Well I don't know which draw function to modify and whats wrong with my cocos2d files. Is there any way to solve this issue? Can this crash my

问题 I am stuck with the problem of layer hierarchy in cocos2d. I have a character with sprites for its body parts. The parent sprite of the body is the torso. Then I have arms and head that are the children of it, then elbows and hands are children of the arms. It works very well so far: I turn the elbow and the hand is turning with it, just like on a real puppet. The problem is when I want to make it wave, the hands get behind the head since head has a higher z-order than arms (which are parents

问题 Which is quicker and less expensive for checking if an object already exists within a list. By using the NSArray contains object or by checking if a key already exists for an NSDictionary? Also does the NSArray containObject selecter iterate through the whole array elements? Also what about checking if a key already exists within a dictionary? Does that require iterating through all the keys. Finally, what is the best and quickest way to check if an object already exists within a large list

问题 Can you believe we are still using Cocos2d-iPhone? Does anyone have a fix for making it work with the newest iPad's and iPhone X's? Our mode is landscape. 回答1: If cocos2d version 1.0 - 2.1 then update it to Cocos2d 2.2 Add iPhoneX splash screen in Images.xcassets In CCConfiguration.m file updated below function. In this we are handling contentScaleFactor 3. -(NSInteger) runningDevice { NSInteger ret=-1; #ifdef __CC_PLATFORM_IOS if( UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) { ret =

问题 I am trying to get itunes song previews to play in my app. I have found some other questions like this but none of the solutions have worked for me. I am already signed up with the Affiliate program that apple has. Here are some of the things I have tried: This got me the itunes preview URL that I am trying NSUInteger numberOfResults = 200; NSString *searchString = @"AC/DC"; NSString *encodedSearchString = [searchString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; NSString

问题 I'm on iOS 5.1 I was trying to display several batch of lines in the same vertex array and I wanted to separate them using degenerated vertices. But it does not seem to work. I line is drawn between each batch of vertices. Googling the problem gave me results that degenerated vertices was not compatible with GL_LINE_STRIP but I'm not really sure about it. Can someone confirm that? And also what's the alternative ? 回答1: As far as I know, you can only draw a continuous line using a single

问题 I have a function that returns a variable and I want to know how to return an array the issue is it isn't an NSArray it is just an average C array like this... -(b2Fixture*) addFixturesToBody:(b2Body*)body forShapeName:(NSString*)shape { BodyDef *so = [shapeObjects objectForKey:shape]; assert(so); FixtureDef *fix = so->fixtures; int count = -1; b2Fixture *Fixi[4]; while(fix) { count++; NSLog(@"count = %d",count); Fixi[count]= body->CreateFixture(&fix->fixture); if (Fixi[count]!=0) { NSLog(@

问题 I am developing a cocos2d based app with a space background in which I am exploiting a CCQuadParticleSystem to make blinking stars. I have generated this particle system with ParticleDesigner. As soon as I load the particle system white dots representing stars start appearing in the background and after a while they fade out so that, after few seconds in which the particle system reaches the regime state, a night sky full of stars comes out. My problem is that I would like to know if there is

问题 i have a question about achieving an effect like on a lunar eclipse. The effect should look like in the first seconds of this gif. So just like a black shadow which goes over the circle. The ideal situation would be a function where i can passed a parameter in percentage to get this amount as a shadow on the circle: The problem which i am facing is that my background is an gradient. So it's not possible to have a black circle which moves over the moon to get the effect. I tried something with