Crash Problem

[Whitehk]

Hi I created a game app for the ipad and Everytime I switch to this view, it crashes. It's probably a memory problem. I have looked through the code countless times, and can still find nothing wrong with it. So I finally decided to post here. Thanks for the help. Here is my code to examine:

//
//  Easy.m
//  App Name
//
//  Created by Me on 3/25/10.
//  Copyright 2010 __MyCompanyName__. All rights reserved.
//

#import "Easy.h"
#import "OriginalDifficulty.h"

#define kGameStateRunning 1
#define kGameStatePaused  2

#define kBallSpeedX 2
#define kBallSpeedY 3

#define kCompMoveSpeed 1
#define kScoreToWin 5

@implementation Easy
@synthesize backButton,ballEasy,player1Easy,compEasy,player1_score_easy,comp_score_easy,gameStateEasy,ballVelocityEasy,tapToBeginEasy;

- (IBAction)backClicked:(UIButton *)button; {
	OriginalDifficulty *originalDifficultyView = [[OriginalDifficulty alloc] initWithNibName:@"OriginalDifficulty" bundle:[NSBundle mainBundle]];
	[self.view addSubview:originalDifficultyView.view];
	[Easy release];
}

/*
 // The designated initializer. Override to perform setup that is required before the view is loaded.
 - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
 if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) {
 // Custom initialization
 }
 return self;
 }
 */

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
	if(gameStateEasy == kGameStatePaused) {
		tapToBeginEasy.hidden = YES;
		gameStateEasy = kGameStateRunning;
	} else if(gameStateEasy == kGameStateRunning) {
		[self touchesMoved:touches withEvent:event];
	}
}

- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
	UITouch *touch = [[event allTouches] anyObject];
	CGPoint location = [touch locationInView:touch.view];
	CGPoint xLocation = CGPointMake(location.x,player1Easy.center.y);
	player1Easy.center = xLocation;
}

-(void) gameLoop {
	if(gameStateEasy == kGameStateRunning) {
		
		ballEasy.center = CGPointMake(ballEasy.center.x + ballVelocityEasy.x , ballEasy.center.y + ballVelocityEasy.y);
		
		if(ballEasy.center.x > self.view.bounds.size.width || ballEasy.center.x < 0) {
			ballVelocityEasy.x = -ballVelocityEasy.x;
		}
		
		if(ballEasy.center.y > self.view.bounds.size.height || ballEasy.center.y < 0) {
			ballVelocityEasy.y = -ballVelocityEasy.y;
		}
		
		if (CGRectIntersectsRect (ballEasy.frame, player1Easy.frame)) {
			CGRect frame = ballEasy.frame;
			frame.origin.y = player1Easy.frame.origin.y - frame.size.height;
			ballEasy.frame = frame;
			ballVelocityEasy.y = -ballVelocityEasy.y; // turn ball around if collide
		}
		
		if (CGRectIntersectsRect (ballEasy.frame, compEasy.frame)) {               
			CGRect frame = ballEasy.frame;
			frame.origin.y = CGRectGetMaxY(compEasy.frame);
			ballEasy.frame = frame;
			ballVelocityEasy.y = -ballVelocityEasy.y; // turn ball around if collide
		}
		
		
		// Begin Simple AI
		if(ballEasy.center.y <= self.view.center.y) {
			if(ballEasy.center.x < compEasy.center.x) {
				CGPoint compLocation = CGPointMake(compEasy.center.x - kCompMoveSpeed, compEasy.center.y);
				compEasy.center = compLocation;
			}
			
			if(ballEasy.center.x > compEasy.center.x) {
				CGPoint compLocation = CGPointMake(compEasy.center.x + kCompMoveSpeed, compEasy.center.y);
				compEasy.center = compLocation;
			}
		}
		// Begin Scoring Game Logic
		if(ballEasy.center.y <= 0) {
			player1_score_value_easy++;
			[self reset:(player1_score_value_easy >= kScoreToWin)];
		}
		
		if(ballEasy.center.y > self.view.bounds.size.height) {
			comp_score_value_easy++;
			[self reset:(comp_score_value_easy >= kScoreToWin)];
		}
		
	} else {
		if(tapToBeginEasy.hidden) {
			tapToBeginEasy.hidden = NO;
		}
	}
}

-(void)reset:(BOOL) newGame {
	self.gameStateEasy = kGameStatePaused;
	ballEasy.center = self.view.center;
	if(newGame) {
		if(comp_score_value_easy > player1_score_value_easy) {
			tapToBeginEasy.text = @"Computer Wins!";
		} else {
			tapToBeginEasy.text = @"Player Wins!";
		}
		
		comp_score_value_easy = 0;
		player1_score_value_easy = 0;
	} else {
		tapToBeginEasy.text = @"Tap To Begin";
	}
	
	player1_score_easy.text = [NSString stringWithFormat:@"%d",player1_score_value_easy];
	comp_score_easy.text = [NSString stringWithFormat:@"%d",comp_score_value_easy];
}

// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
	[super viewDidLoad];
	self.gameStateEasy = kGameStatePaused;
	ballVelocityEasy = CGPointMake(kBallSpeedX,kBallSpeedY);
	
	[NSTimer scheduledTimerWithTimeInterval:0.01 target:self selector:@selector(gameLoop) userInfo:nil repeats:YES];
}

/*
 // Override to allow orientations other than the default portrait orientation.
 - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
 // Return YES for supported orientations
 return (interfaceOrientation == UIInterfaceOrientationPortrait);
 }
 */


- (void)didReceiveMemoryWarning {
	[super didReceiveMemoryWarning]; // Releases the view if it doesn't have a superview
	// Release anything that's not essential, such as cached data
}

- (void)dealloc {
	[super dealloc];
	[ballEasy release];
	[compEasy release];
	[player1Easy release];
	[player1_score_easy release];
	[comp_score_easy release];
	[tapToBeginEasy release];
}

@end

[QuantumDoja]

If you comment out all the code in the methods but leave the method signatures in place, does it still crash? Also post the backtrace so we could have a quick place to start!

[alexy]

Yeah, a dump would be a great help.

Curious if it still crashes if you don't start your timer in viewDidLoad method (just to begin trying to isolate the problem