I'm Having Problems with NSTimer in Xcode

Question

im making a simple game on Xcode and i decided to use a nstimer in my .m xcode found 3 problems with my code it says Assigning to 'CGPoint' (aka 'struct CGPoint') from in compatable 'int' twice and it says use of undeclared game loop. Any help is great

@implementation ViewController 
@synthesize bg, rock, platform1, platform2, platform3, platform4, platform5, platform6, platform7;
@synthesize gameState;
@synthesize rockVelocity, gravity;


// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.

- (void)viewDidLoad {
[super viewDidLoad];
gameState = kStateRunning;
rockVelocity = CGpointMake (0, 0);
gravity = CGpointMake (0, kGravity);

[NSTimer scheduledTimerWithTimeInterval: 1.0/60 target:self selector:@selector(gameLoop) userInfo:nil repeats:YES];

- (void)gameLoop {
   if (gameState == kStateRunning)
   {
       [self gameStatePlayNormal];
   }
    else if (gameState == kStateGameOver)
    {

    }
}

Erik Godard · Answer 1 · 2013-08-20T04:51:30.847

1

You need to say CGPointMake (0, 0); You also need to make sure you declare the gameLoop function in your header file by saying

-(void)gameLoop;

Your viewDidLoad is also missing a closing bracket. Add one after your NSTimer method.

edited Aug 20 '13 at 04:51

answered Aug 20 '13 at 03:58

Erik Godard

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how do i say CG*P*ointMake (0, 0); – Ethan Reid Aug 20 '13 at 04:05
There's no need for the stars, I was just trying to emphasize that it should be uppercase – Erik Godard Aug 20 '13 at 04:05
You need to capitalize the P. – Erik Godard Aug 20 '13 at 04:08
rockVelocity = CGPointMake (0, 0); gravity = CGPointMake (0, kGravity); – Erik Godard Aug 20 '13 at 04:10
thanks i only have one more bug it says use of undeclared identifier 'gameLoop' – Ethan Reid Aug 20 '13 at 04:18
You need a close bracket } at the end of your viewDidLoad method – Erik Godard Aug 20 '13 at 04:46
that just added more bugs – Ethan Reid Aug 20 '13 at 04:49
You put a } after the NSTimer method? – Erik Godard Aug 20 '13 at 04:50
what would that look like – Ethan Reid Aug 20 '13 at 04:53

I'm Having Problems with NSTimer in Xcode

1 Answers1