-(id) init
{
    if ((self = [super init])) {
        SPImage *background = [SPImage imageWithTexture:[[Assets textureAtlas:@"ui.xml"] textureByName:@"dialog"]];
        
        SPButton *buttonYes = [SPButton buttonWithUpState:[[Assets textureAtlas:@"ui.xml"] textureByName:@"dialog_yes"] text:@"Yes"];
        
        SPButton *buttonNo = [SPButton buttonWithUpState:[[Assets textureAtlas:@"ui.xml"] textureByName:@"dialog_no"] text:@"No"];
        
        buttonYes.x = 24.0f;
        buttonYes.y = background.height - buttonYes.height -40.0f;
        
        buttonNo.x = buttonYes.x + buttonYes.width - 20.0f;
        buttonNo.y = buttonYes.y;
        
        [self addChild:background];
     ...