There is an example in MenuTest.m that should show you how to use an AtlasSprite like you want..

Mark

Found this in the MenuItem class:

/** MenuItemAtlasCocosNode<CocosNodeRGBA> accepts AtlasCocosNode<CocosNodeRGBA> objects as items.
The images has 3 different states:
- unselected image
- selected image
- disabled image

Limitations:
- AtlasSprite objects can only have as a parent an AltasSpriteManager
- So they need to be added twice:
- To the Menu
- And to the AtlasSpriteManager
- To respect the menu aligments, the AtlasSpriteManager should have the same coordinates as the Menu
@since v0.8.0
*/

Still confused but I think I'm getting closer.

I am also trying to do create my own custom subclass of a CocosNode with:

- a background sprite
- an overlay sprite
- a selected state sprite

I'm loading the sprites from a sprite sheet and using AtlasSpriteManager and I don't know how to add the sprites and the label as a child to self when I also need to add the sprites as a child to the sprite manager.

Do I need to do both? Sorry very confused. Can anybody help explain this to me or offer any suggestions?

Thanks

Great :)

@Chrisco... thx it works :-) ...

Hi raegtime,

A couple of things:

1 - It looks like you're subclassing Sprite. You might find it easier to subclass CocosNode and add the Sprites representing various states to that node.

2 - Whenever you call -init, it needs to be preceded with -alloc. So "drop1 = [DropDown init];" doesn't work, but "drop1 = [[DropDown alloc] init];" in theory, would.

3. You've changed your init method to a class method (+). Actually, I'm a little surprised that the compiler doesn't throw a warning (or error) when then happens. Try reworking your init method like this (note: use a "-" and not a "+"):

- (id)init {

    if (self = [super init]) {
       // code that creates a Sprite to represent your non-active state and adds it as a child to self
       // code that creates a Sprite to represent your active state and adds it as a child to self
       // code that creates your label and adds it as a child to self
    }
    return self;
}

I hope this makes sense - I'm at work, so don't have a lot of time to get to in depth...

I don't quite understand either... It seems you are allocation your object 2 times inside the init function.

i think a more apropiate way would be:

drop1 = [[DropDown alloc] init];
---------------------------------

@implementation DropDown

@synthesize captionLbl;
- (id) init
{
if( (self=[super init] ))
{
  And here initialize your sprites, labels,etc...
  You should have an Sprite instance variable, a Label instance variable, and so on... in your class.

  Then:
    captionLbl = [self initLabel]; (i would change the functions name so you don't misunderstand them as constructor functions, since these aren't)
}
return self;
}

Your init function confuses me a lot. Why not use more than 1 step to initialize and return?

hi,

i tryed to create a own GUI component with cocos 2d... i haved written a class (extends Sprite) ... this class initialize with graphics and a lable... if I create an instance of my class .. i can see my component but i can user any functions... i wrote a setLabel function .. but the lable change...

i create a instance with this code:

drop1 = [DropDown init];

//here I call the function but it dont works :-(
[drop1 setCaption:@"Produkt"];

///dropDown.m:

#import "DropDown.h"

@implementation DropDown

@synthesize captionLbl;
+ (id) init
{
if( (self=[super init] ))
{
return [[[self spriteWithFile:@"menue_dropdownbtn.png"] addChild:[[self alloc] initActiveState]] addChild:[[self alloc] initLabel]];
}
}

- (id)initActiveState
{
activated = [Sprite spriteWithFile:@"menue_dropactiveated.png"];
[activated setAnchorPoint:ccp(0,0)];
[activated setPosition:ccp(173,0)];
[activated setVisible:NO];
return activated;
}

- (id)initLabel
{
captionLbl = [Label labelWithString:@"Text" fontName:@"Arial" fontSize:14.0f];
[captionLbl setAnchorPoint:ccp(0,0)];
[captionLbl setPosition:ccp(10,5)];
[captionLbl setRGB:0 :0 :0];
return captionLbl;
}

- (void)setCaption:(NSString*)text
{
[captionLbl setString:text];
NSLog(@"Hallooooo");
}

- (void)activate
{
[activated setVisible:YES];
isActive = YES;
}

- (void)deactivate
{
[activated setVisible:NO];
isActive = NO;
}

@end

// DropDown.h
//

//

#import <Foundation/Foundation.h>
#import "cocos2d.h"

@interface DropDown : Sprite
{
BOOL isActive;

@private
Sprite* activated;
Label* captionLbl;

}

@property (nonatomic, retain) Label* captionLbl;

+ (id) init;
- (id)initActiveState;
- (id)initLabel;
- (void)setCaption:(NSString*)text;
- (void)activate;
- (void)deactivate;
@end