Zombie Game (Objective C)

@interface ViewController : UIViewController <UIAlertViewDelegate>

// i.e. i want to listen to the UI Alert View

@property (strong, nonatomic) IBOutlet UILabel *timeLabel;

@property (strong, nonatomic) IBOutlet UILabel *scoreLabel;

- (IBAction)buttonPressed:(id)sender;

@property (strong, nonatomic) IBOutlet UIImageView *staticPea;

@end

-------------------------

@implementation ViewController {

    int score;

    int seconds;

    NSTimer *timer;

    UIImageView *pea;

}

- (void)viewDidLoad

{

    [super viewDidLoad];

// Do any additional setup after loading the view, typically from a nib.

    

    self.view.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"bg2.png"]];

    

    [self setupGame];

    

}

- (void)didReceiveMemoryWarning

{

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

-(void)setupGame {

    

    [pea removeFromSuperview];

                

    seconds = 5;

    score = 0;

    

    _timeLabel.text = [NSString stringWithFormat:@"%i", seconds];

    _scoreLabel.text = [NSString stringWithFormat:@"%i", score];

    

    timer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(subtractTime) userInfo:nil repeats:YES];

}

-(void)subtractTime {

    

    seconds--;

    _timeLabel.text = [NSString stringWithFormat:@"%i", seconds];

    

    if (seconds <= 5){

        _timeLabel.textColor = [UIColor redColor];

    }

    

    if (seconds <=0){

        [timer invalidate];

        UIAlertView *alert = [[UIAlertView alloc]

            initWithTitle:@"Game Over!"

            message:[NSString stringWithFormat:@"Game Over! Your score was %i", score]

            delegate:self

            cancelButtonTitle:@"OK"

            otherButtonTitles:@"Restart", nil];

        [alert show];

    }

    

}

-(void)restartGame {

    [timer invalidate]; // just to be safe

    [self setupGame];

}

- (IBAction)buttonPressed:(id)sender {

    

    pea = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"pea"]];

    [pea setFrame:CGRectMake(83, 115, 35, 35)];

    [self.view addSubview:pea];

    

    [UIView animateWithDuration:0.5 delay:0 options:UIViewAnimationOptionCurveEaseIn animations:^{

        [pea setFrame:CGRectMake(149, 47, 35, 35)];

    } completion:^(BOOL finished) {

        [pea setFrame:CGRectMake(134, 40, 66, 50)];

        [pea setImage:[UIImage imageNamed:@"pea_splat"]];

        score++;

        _scoreLabel.text = [NSString stringWithFormat:@"%i", score];

    }];

}

-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{

    if (buttonIndex == 1){

        NSLog(@"Restart Button Selected");

        [self restartGame];

    }

    

    if (buttonIndex == 0)

        NSLog(@"Cancel Button Selected");

}