Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS

Posted by Aurelian Spodarec
Aurelian Spodarec
7,369 Points

A little confused

Hello, i got what the class is , how it works with h file and m file but now i face a problem .

What this means? could somebody explain it to me how it works?

#import "THTitleScene.h"
#import "THGamePlayScene.h"
@implementation THTitleScene

-(id)initWithSize:(CGSize)size {
    if (self = [super initWithSize:size]) {
        /* Setup your scene here */
        SKSpriteNode *background = [SKSpriteNode spriteNodeWithImageNamed:@"splash_1"];
        background.position = CGPointMake(CGRectGetMidX(self.frame), CGRectGetMidY(self.frame));
        [self addChild:background];


    }
    return self;
}

- (void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    THGamePlayScene *gamePlayScene = [THGamePlayScene sceneWithSize:self.frame.size];
    SKTransition *transition = [SKTransition fadeWithDuration:1.0];
    [self.view presentScene:gamePlayScene transition:transition];
}


@end

#import "THGamePlayScene.h"

@implementation THGamePlayScene

-(id)initWithSize:(CGSize)size {
    if (self = [super initWithSize:size]) {
        /* Setup your scene here */
        SKSpriteNode *background = [SKSpriteNode spriteNodeWithImageNamed:@"background_1"];
        background.position = CGPointMake(CGRectGetMidX(self.frame), CGRectGetMidY(self.frame));
        [self addChild:background];


    }
    return self;
}

@end
Kai Schuerrer
Kai Schuerrer
11,208 Points
Kai Schuerrer
Kai Schuerrer
11,208 Points

Well, what exactly is your problem? Please describe it properly.

Aurelian Spodarec
Aurelian Spodarec
7,369 Points

im not sure what is the self addChild and how it works same as the -(void) , how this touches began? and why are there pointers? how does it works ? I looked and searched about ti but im still a bit confused . I hope I described it better