Any ideas how this addSpringToBody works? cpConstraint *joint = [space addSpringToBody:block fromBody:ball2 toBodyAnchor:cpvzero fromBodyAnchor:cpvzero restLength:0.0f stiffness:1.0f damping:0.0f]; cpConstraintNode *jointNode = [cpConstraintNode nodeWithConstraint:joint]; jointNode.color = ccWHITE; jointNode.lineWidth...
I'm toying with a small game on my iPad using cocos2d and I've run into some performance worries. I have a 512x512 image tiled as my background. That gives me around 40fps with 20 sprites (in a CCSpriteBatchNode), the code for the background is this: CCSprite *background; background = [CCSprite spriteWithFile:@"oak.png" rect : CGRectMa...
I have class called "HelloWorld.m" and another class called "Person.m". I have declared Person instance in the HelloWorld.m class as follows: Person *person; Now, when the user touches the screen I fire the following method: [person foo]; But I get the error saying invalid selector sent. NOTE: Person class inherits from the CCS...
Is it possible to call the instance method of an object from the selector? Is the below possible? It gives me compilation error that ":" is missing or something: timer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(([self.perso...
I have used scheduler to return from a scene to the main menu. There is nothing in the scene page except menu. But scenes are not deallocating and memory leakage increasing as i navigate through the scenes. So application is not closing(kept running in background when close using iphone/ipod button) but crashing. Hope some of you faced ...
Hi, i am using box2d to developed iphone game.But i have not a lot of experience.I move a body to a location using this code body->SetTransform(b2Vec2(posx2,posy2), 0); and the body does move.But i need it to move with animation.in objective c i use UIView Animation to do similar type of things. can anyone tell how it possible in coc...
Hi, I'd like to have a water effect on a background layer in my app. The effect doesn't need to react to touch or anything - it just needs to wave an image a little bit. CCWaves3D seem ok, but leave have nasty black artifacts around the edges when I run it. Similarly CCShaky3D. CCLiquid brings my app down from 20fps to 5fps.. Is there ...
Hi!!there.. I am trying to make a game in ipad using cocos2d. For that, I used viewcontroller class and took an imageview using scrollview. Now how can I zoom a particular portion of an image?? Anybody there,please give me a code or a demo or guide me. Thank you... ...
How can I rotate sprite around his center in cocos2d in ccTouchesMoved. I found some code, but this not what I need. I need to rotate sprite like photo in Photo gallery app. - (void)ccTouchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { NSArray *allTouch = [touches allObjects]; if([allTouch count] > 1){ UITouch *t...
Here is what my code look like CCSprite *sp = [CCSprite spriteWithFile:@"textureWithOneColorbackground.jpg"]; [self addChild:sp]; // Change the blending factors [sp setBlendFunc:(ccBlendFunc){GL_ONE, GL_ONE}]; [sp setColor:ccBLACK]; The original texture color is (246,149,32) The outcome now is (0, 0, 0) According to OpenGL, the cal...
1、top http:// i.imgur.com/LszAu.png 2、middle http:// i.imgur.com/j82Dr.png 3、bottom http:// i.imgur.com/OP9hu.png dialog http:// i.imgur.com/ed3W2.png How do i do with 1,2,3 to a dialog? And dialog can stretch with content? I hope you can write a simple example for me~~thanks! ...
What's the best way to implement a pan-able zoomable game map with Cocos2d for iPhone. It would be like Mobile Safari except with a game map that doesn't fit completely on screen. Or like how it's done with Angry Birds, Cut the rope, etc. This would not be a side scrolling game, just a fixed game area that you can zoom in/out of. I'm n...
Hey all Basically all i want is to create CCTexture2D objects from a spritesheet. I can make individual sprites from charSpriteCur = [CCSprite spriteWithTexture:charSheet.texture rect:CGRectMake(136, 0, 136, 223)]; but i want to get individual textures from a spritesheet so that i can use [mySprite setTexture:tex]; to change the spr...
Hello, I am not quite sure how use HD images for sprites in cocos2d. I looked through the documentation, and downloaded the newest beta which supports points instead of pixels, but I don't understand the whole -hd suffix idea. In other word I need help and have no idea how to use retina quality graphics in my cocos2d game. I feel tha...
I've been using an older version of cocos2d for iPhone for an existing project - never change a running system. Now I'd like to upgrade to a more recent version and don't know how I should proceed about this. Just install a newer version? Will the install script overwrite all of the old files and take care of the old templates too? Or d...
Hi all! I'm new in objective-C and here is my problem: I want to write a game and i want to use a GameStateManager class to manage the game states. As i've read every class in Objective-C should be inherited from NSObject or it's subclass. So here is the GameStateManager interface: @interface GameStateManager : NSObject { int curren...
I want update position of Particles for store this information I use NSMutableArray. I want do update 1 time per 2 seconds for example. For this I try use this code. //ParticlesLayer.h @interface ParticlesLayer : CCLayer { CCQuadParticleSystem *particle; NSMutableArray *partilesCoordinates; } @property (assign, readwrite) NSMutableArra...
Here is my code, i have been trying- -(void) animatedMove:(CCSprite *)character { ccTime actualDuration = 10; id actionMove = [CCMoveBy actionWithDuration:actualDuration position:ccp(screen_width+50, character.position.y)]; id actionBack = [CCMoveBy actionWithDuration:1 ...
I have this code in one of my projects (part of a loop): newPath = [tileMap updatePathFromNode:point1 toNode:point2]; int x,y; x = [[newPath objectAtIndex:0] nodeX]; y = [[newPath objectAtIndex:0] nodeY]; currFiend.motionTarget = ccp(x*20,y*20); I am now looking for areas around my entire project to optimize the code. What i'm curiou...
Hello, I have been experimenting with the box2D sample project within cocos2D for the iPhone and am wondering if box2D is the appropriate engine to use to make a moving object "stick" to a stationary object when the moving object is finished moving in a certain direction. Here is a simplification of what I am trying to achieve: I hav...