Adding a subclass of CCSprite to a scene - ios

Question

I've recently decided to subclass my sprite, but I am a bit clueless on how to add them to a scene. At the moment, I have created my CCSprite subclass, using New File>Cocos2d>CCNode>Subclass of... CCSprite. Then, I have made my sprite in the Sprite.h file:
#interface Mos : CCSprite {
CCSprite *mos;
}
Once this is done, in the Sprite.m I code this:
#implementation Mos
-(id) init
{
if( (self=[super init])) {
mos = [CCSprite spriteWithFile:#"sprite_mos.png"];
}
return self;
}
What I want to know is how to then add this sprite into my game's scene.

Answer 1

Here is how to correctly subclass CCSprite as the documentation says:
#interface Mos : CCSprite {
// remove the line CCSprite *mos;
}
#implementation Mos
// You probably don't need to override this method if you will not add other code inside of it
-(id) initWithTexture:(CCTexture2D*)texture rect:(CGRect)rect
{
if( (self=[super initWithTexture:texture rect:rect]))
{
}
return self;
}
+ (id)sprite
{
return [Mos spriteWithFile:#"sprite_mos.png"];
}
#end
Then in your code, you can use Mos normally:
Mos *mos = [Mos sprite];
[scene addChild:mos];

Answer 2

The same way you add CCSprites and other classes.
Mos *newMos = [[Mos alloc] init];
// set coordinates and other properties
[scene addChild:newMos];
[newMos release];
Edit:
#interface Mos : CCSprite {
// some member variables go here
}
#implementation Mos
-(id)init
{
CCTexture2D *texture = [[CCTextureCache sharedTextureCache] addImage:#"sprite_mos.png"];
if( texture ) {
CGRect rect = CGRectZero;
rect.size = texture.contentSize;
// set members to some values
return [self initWithTexture:texture rect:rect];
}
[self release];
return nil;
}
And then in your scene class
// ...
Mos *obj = [[Mos alloc] init];
// set position, etc
[scene addChild:obj];
[obj release];
// ...