I want to implement a simple concept. If the player gets a new highscore, there will be a sprite newHS that will become visible, otherwise it is hidden. Here is my code:
if (score < highScore) {
newHS.visible = NO;
}
else {
highScore = score;
[[NSUserDefaults standardUserDefaults] setInteger:highScore forKey:#"HighScore"];
[[NSUserDefaults standardUserDefaults]synchronize];
newHS.visible = YES;
}
However, I ran into a problem. If I start off by scoring 1, it pops up just fine. Then if I score 1 again it still pops up (because score is not less than highScore, it's the same), but I don’t want that because it’s not a NEW highscore anymore.. How would I get around this? I thought of adding another variable, something like “previousScore” or something but I am not sure how to approach this..
int highscore = [[NSUserDefaults standardUserDefaults] valueForKey:#"HighScore"];
if (score > highscore) {
newHS.visible = YES;
[[NSUserDefaults standardUserDefaults] setInteger:score forKey:#"HighScore"];
[[NSUserDefaults standardUserDefaults] synchronize];
}
else newHS.visible = NO;
You don't show us how or where you create the highscore integer, my guess is that you create a new local highscore int and set it to 0 instead of set it to the saved highscore.
Related
I have two methods in my .m file .And i want to access by different values but in my Facebook variable gives nil value but if i use only one line and remove second line of object for key then it work fine for one method .
How i do this which work for my both methods
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[[NSUserDefaults standardUserDefaults] synchronize];
user=[defaults objectForKey:#"userid"];
facebook=[defaults objectForKey:#"FACEBOOKprofile"];
facebook =[defaults objectForKey:#"VLCC"];
if ([facebook isEqualToString:#"VLCCFACEBOOK"])
{
[self FacebookRecord];
}
else if([facebook isEqualToString:#"VLCC"])
{
[self VlccRecord];
}
assume that
Choice-1
// for accessing the both condition in same time
Initially Store the UserDefault value based on your method.
if you are access with facebook , on that time store the string like
[[NSUserDefaults standardUserDefaults] setObject:"VLCCFACEBOOK" forKey:#"FACEBOOKprofile"];
[[NSUserDefaults standardUserDefaults] synchronize];
if you are access with VLCC , on that time store the string like
[[NSUserDefaults standardUserDefaults] setObject:"VLCC" forKey:#"VLCCprofile"];
[[NSUserDefaults standardUserDefaults] synchronize];
and retrieve the both and check like
if ([[[NSUserDefaults standardUserDefaults]
objectForKey:#"FACEBOOKprofile"]isEqualToString:#"VLCCFACEBOOK"])
{
[self FacebookRecord];
}
if([[[NSUserDefaults standardUserDefaults]
objectForKey:#"VLCCprofile"] isEqualToString:#"VLCC"])
{
[self VlccRecord];
}
Choice-2
// for accessing single condition on single time
if you are access with facebook , on that time store the string like
[[NSUserDefaults standardUserDefaults] setObject:"VLCCFACEBOOK" forKey:#"FACEBOOKprofile"];
[[NSUserDefaults standardUserDefaults] synchronize];
if you are access with VLCC , on that time store the string like
[[NSUserDefaults standardUserDefaults] setObject:"VLCC" forKey:#"FACEBOOKprofile"];
[[NSUserDefaults standardUserDefaults] synchronize];
and retrieve the both and check like
if ([[[NSUserDefaults standardUserDefaults]
objectForKey:#"FACEBOOKprofile"]isEqualToString:#"VLCCFACEBOOK"])
{
[self FacebookRecord];
}
else if([[[NSUserDefaults standardUserDefaults]
objectForKey:#"FACEBOOKprofile"] isEqualToString:#"VLCC"])
{
[self VlccRecord];
}
In your code, the [self VlccRecord] method will always get called because you are overwriting the facebook variable.
facebook=[defaults objectForKey:#"FACEBOOKprofile"];
facebook =[defaults objectForKey:#"VLCC"];
If you are looking to append the two strings : Then use the stringbyAppendingString method.
int a = 10;
a = 20;
print >> a; //20
int a = 10;
print1 >> a; //10
a = 20;
print2 >> a; //20
Here,
a = facebook;
print1 = [self FacebookRecord];
print2 = [self VlccRecord];
I believe you'll understand.
How do I go about saving a high score using nsuserdefaults and displaying it on the main menu. Currently my score label code looks like this. BTW I am using objective c.
_scoreLabel.text = [NSString stringWithFormat:#"%02lu", (unsigned long)_enemies.count];
this is how you save the score
if(HighScore<ScoreNumber)
{
[[NSUserDefaults standardUserDefaults]setInteger:ScoreNumber forKey:#"Save"];
}
this is how you get the score,so you need to convert int to string..and display a string in a label.
HighScore=[[NSUserDefaults standardUserDefaults] integerForKey:#"Save"];
You can save your highScore using NSUserDefaults setInteger. The code for saving an integer into NSUserDefault goes here.
[[NSUserDefaults standardUserDefaults] setInteger:HighScore forKey:#"HighScore"];
Now you can set the highScore from NSUserDefault. The code for retrieving Integer from NSUserDefault goes here.
[_scoreLabel setText:[NSString stringWithFormat:#"%d", [[NSUserDefaults standardUserDefaults] integerForKey:#"HighScore"]]];
For some reason, the highscore on the game over page is not properly displayed. After a round of play, both the score and highscore are displayed on the game over menu. The score is displayed fine, but in the event that the user beats their highscore, it doesn't update, until the menu is reloaded.
If thats confusing:
Game 1: score = 30, previous highscore displayed = 10
Game 2: score = 40, previous highscore displayed = 30
Game 3: score = 10, highscore displayed = 30
So essentially it doesn't display the new highscore when it is achieved, until the next time the game over menu is loaded.
This is the code:
-(void)update:(CFTimeInterval)currentTime {
score = _debris.count + _debris2.count;
_scoreLabel.text = [NSString stringWithFormat:#"%d", score];
}
and in the initWithSize method:
highScoreNumber = [[NSUserDefaults standardUserDefaults] integerForKey:#"highScoreSaved"];
if (score > highScoreNumber) {
highScoreNumber = score;
[[NSUserDefaults standardUserDefaults] setInteger:highScoreNumber forKey:#"highScoreSaved"];
That's the code in the game, and this is the code on the game over menu:
SKLabelNode *highScore = [SKLabelNode labelNodeWithFontNamed:#"DIN Condensed"];
highScore.fontSize = 40;
highScore.alpha = 0.7;
highScore.fontColor = [SKColor whiteColor];
highScore.position = CGPointMake(CGRectGetMidX(self.frame), CGRectGetMidY(self.frame)-15);
highScoreNumber = [[NSUserDefaults standardUserDefaults] integerForKey:#"highScoreSaved"];
highScore.text = [NSString stringWithFormat:#"BEST: %d", highScoreNumber];
Based on this, is there any reason as to why the highscore isn't updating when there is a new highscore, but instead waiting until the gamoever screen is reloaded?
Are you calling [[NSUserDefaults standardUserDefaults] synchronize] right after [[NSUserDefaults standardUserDefaults] setInteger:highScoreNumber forKey:#"highScoreSaved"];? That will ensure the data is saved immediately.
Ola, I am trying to find a way to save user scores so when it is closed from the background it saves their scores and when open again it displays that score once again. By the way the thing Im saving is a tap counter so when they tap it has to add onto their previous score.
Any suggestions?
Save:
int numberOfTaps = 42; // some number of taps
NSUserDefaults *standardUserDefaults = [NSUserDefaults standardUserDefaults];
[standardUserDefaults setValue:[NSNumber numberWithInt:numberOfTaps] forKey:#"numberOfTaps"];
Retrieve:
NSUserDefaults *standardUserDefaults = [NSUserDefaults standardUserDefaults];
int savedTaps = [[standardUserDefaults objectForKey:#"numberOfTaps"] intValue];
Updating For Further Information
Just to make it extremely easy:
Copy these methods somewhere in your .m
- (void) saveNumberOfTaps:(int)numberOfTaps {
[[NSUserDefaults standardUserDefaults] setValue:[NSNumber numberWithInt:numberOfTaps] forKey:#"numberOfTaps"];
NSLog(#"Saved numberOfTaps: %i", numberOfTaps);
}
- (int) getNumberOfTaps {
if ([[[NSUserDefaults standardUserDefaults] objectForKey:#"numberOfTaps"] intValue]) {
int numberOfTaps = [[[NSUserDefaults standardUserDefaults] objectForKey:#"numberOfTaps"] intValue];
NSLog(#"Getting numberOfTaps: %i", numberOfTaps);
return numberOfTaps;
}
else {
NSLog(#"No taps saved yet");
return 0;
}
}
Then whenever you want to use these values, you can use the following:
// Save Taps
[self saveNumberOfTaps:14];
// Get Taps
int taps = [self getNumberOfTaps];
NSLog(#"taps retrieved: %i", taps);
It sounds like you're just starting out, so try using NSUserDefaults. Once you need something more advanced, look into Core Data.
I developed a small game , , so I manage something like this , when app lunches for the first time , it save the very first record , then after that it loads and compares the new records with the the first time record . but the problem is when user hit the record it should be saved the new record but it doesn't !!! and saves the first record again ! here is my code :
- (void)manageScores {
NSLog(#"managed");
NSString *tempScore = [NSString stringWithFormat:#"%#",scoreLabel.text];
GO.scoreNumber = [tempScore integerValue];
GO.bestScoreNumber = [tempScore integerValue];
GO.scores.text = [NSString stringWithFormat:#"score:%d",GO.scoreNumber];
GO.bestScore.text = [NSString stringWithFormat:#"best:%d",GO.bestScoreNumber];
if ([[NSUserDefaults standardUserDefaults] boolForKey:#"HasLaunchedOnce"])
{
// app already launched
NSLog(#"app already launched");
[GO loadBestScore];
}
else
{
[[NSUserDefaults standardUserDefaults] setBool:YES forKey:#"HasLaunchedOnce"];
[[NSUserDefaults standardUserDefaults] synchronize];
// This is the first launch ever
NSLog(#"first time lunch ever");
[GO saveBestScore];
}
if (GO.scoreNumber > GO.bestScoreNumber) {
//**************THIS METHOD DOESN'T WORK WHEN USER HIT THE RECORD*********/////
[GO saveBestScore];
//**************//
GO.scores.text = [NSString stringWithFormat:#"score:%d",GO.scoreNumber];
GO.bestScore.text = [NSString stringWithFormat:#"best:%d",GO.scoreNumber];
GO.shareScore.text = [NSString stringWithFormat:#"score:%d",GO.bestScoreNumber];
NSLog(#"new record");
}
if (GO.scoreNumber < GO.bestScoreNumber) {
GO.scores.text = [NSString stringWithFormat:#"score:%d",GO.scoreNumber];
GO.bestScore.text = [NSString stringWithFormat:#"best:%d",GO.bestScoreNumber];
GO.shareScore.text = [NSString stringWithFormat:#"score:%d",GO.bestScoreNumber];
[GO loadBestScore];
NSLog(#"NO NEW RECORD");
}
}
saving and loading scores (methods form GameOver.h/m (GO) )
- (void)saveBestScore {
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setInteger:bestScoreNumber forKey:#"highScore"];
[defaults synchronize];
NSLog(#"BEST SCORE SAVED:%i",bestScoreNumber);
}
- (void)loadBestScore {
NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
bestScoreNumber = (int)[prefs integerForKey:#"highScore"];
}
Looks like you should save scoreNumber rather than bestScoreNumber
Reason:
The following code wants to save the best score because GO.ScoreNumber > Go.BestScoreNumber.
if (GO.scoreNumber > GO.bestScoreNumber) {
//**************THIS METHOD DOESN'T WORK WHEN USER HIT THE RECORD*********/////
[GO saveBestScore];
//**************//
GO.scores.text = [NSString stringWithFormat:#"score:%d",GO.scoreNumber];
GO.bestScore.text = [NSString stringWithFormat:#"best:%d",GO.scoreNumber];
GO.shareScore.text = [NSString stringWithFormat:#"score:%d",GO.bestScoreNumber];
NSLog(#"new record");
}
But in saveBestScore, it stores bestScoreNumber, which is the previous highest score number.
[defaults setInteger:bestScoreNumber forKey:#"highScore"];
- (void)saveBestScore
This method doesn't take an argument, but it should.
If you're keeping scores as int, you should modify it to look like this:
- (void)saveBestScore:(int)bestScore
Then, on first launch, call saveBestScore with an argument of 0, just to get it initialize. In fact, if you write saveBestScore method correctly, you don't really need to check whether the app has already launched ever.
- (void)saveBestScore:(int)bestScore {
if (bestScore > [[[NSUserDefaults standardUserDefaults]
objectForKey:#"BestScore"] intValue]); {
[[NSUserDefaults standardUserDefaults] setObject:[NSNumber
numberWithInt:bestScore] forKey:#"BestScore"];
}
- (int)loadBestScore {
return [[[NSUserDefaults standardUserDefaults] objectForKey:#"BestScore]
intValue];
}