I am making a game, and I want a number to be added to a label when the user taps a button

I am making a game, and I want a number to be added to a label when the us开发者_开发知识库er taps a button. Like it adds 5 points when the button.

Declare IBOutlet UILabel *scoreLabel; and implement this method:

   -(IBAction)buttonPressed {
      scoreLabel.text = [NSString stringWithFormat:@"%d",[scoreLabel.text intValue]+5];
    }

Make sure you set up the connections in the IB (scoreLabel points to the label and the button triggers the action.

In Cocos2d you can create labels that can have a numerical value attributed to them. The pseudocode for this question would be as such:

int points = 5;

UIButton *pushButton;
UILabel *Label;

-(void)OnButtonPress{
points =+ 5 //add 5 points
}

label.text = [NSString stringWithInt:points];

For a tutorial on Cocos2d labels, please see: http://www.usightread.com/2009/06/labels-menus-and-options-in-cocos2d-iphone/