GameKit achievement questions - iphone

Question

My game center achievements are appearing in Game Center, so I know my implementation is correct in reporting.
Couple of questions on that.
First, in Game Center it is not showing the percentage view on the image... ie 2% complete next to the achievement, even though I have reported .02. I know the achievement is being reported because if I throw the 100 at it, it records the achievement.
Second, my achievements are not appearing to the user upon reward. As I understood, this functionality was suppose to be handled automatically by gamekit. I was under the impression the the small modal would appear letting the user know they completed an achievement. I now think there is something I have to do, because no small modal is appearing.
I will attach my code, but most of it stock.
My last problem is retrieving scores. I believe I am going to have to store my own scores because my current implementation does not look like it will mesh well.
Thanks in advance...
- (void) loadAchievements
{ [GKAchievement loadAchievementsWithCompletionHandler:^(NSArray *achievements, NSError *error) {
if (error != nil)
{
// handle errors
}
if (achievements != nil)
{
// process the array of achievements.
}
}];
}
-(float)getAchievementPercentageForIdentifier:(NSString *)identifier {
__block float percentage = 0;
[GKAchievement loadAchievementsWithCompletionHandler:^(NSArray *achievements, NSError *error) {
if (error != nil)
{
// handle errors
}
if (achievements != nil)
{
// process the array of achievements.
for (GKAchievement *achievement in achievements) {
if ([achievement.identifier isEqualToString:identifier]) {
percentage = achievement.percentComplete;
NSLog(#"percent complete --> %f", achievement.percentComplete);
}
}
}
}];
NSLog(#"Percentage --> %f", percentage);
return percentage;
}
- (void) reportAchievementIdentifier: (NSString*) identifier percentComplete: (float) percent
{
GKAchievement *achievement = [[[GKAchievement alloc] initWithIdentifier: identifier] autorelease];
if (achievement)
{
achievement.percentComplete = percent;
[achievement reportAchievementWithCompletionHandler:^(NSError *error)
{
if (error != nil)
{
// Retain the achievement object and try again later (not shown).
}
}];
}
}
-(void) addCompletedGameToAchievements {
float oneGamePercentage = 0;
float tenGamePercentage = 0;
float fiftyGamePercentage = 0;
float hundredGamePercentage = 0;
float fivehundredGamePercentage = 0;
float thousandGamePercentage = 0;
int gamesComplete = 0;
oneGamePercentage = [self getAchievementPercentageForIdentifier:kAchievementGamesCompletedOne];
tenGamePercentage = [self getAchievementPercentageForIdentifier:kAchievementGamesCompletedTen];
fiftyGamePercentage = [self getAchievementPercentageForIdentifier:kAchievementGamesCompletedFifty];
hundredGamePercentage = [self getAchievementPercentageForIdentifier:kAchievementGamesCompletedHundred];
fivehundredGamePercentage = [self getAchievementPercentageForIdentifier:kAchievementGamesCompletedFivehundred];
thousandGamePercentage = [self getAchievementPercentageForIdentifier:kAchievementGamesCompletedThousand];
if (oneGamePercentage != 100) {
[self reportAchievementIdentifier:kAchievementGamesCompletedOne percentComplete:100];
}
if (tenGamePercentage != 100) {
gamesComplete = tenGamePercentage * 10;
gamesComplete++;
[self reportAchievementIdentifier:kAchievementGamesCompletedTen percentComplete:(gamesComplete * .10)];
}
if (fiftyGamePercentage != 100) {
gamesComplete = fiftyGamePercentage * 50;
gamesComplete++;
NSLog(#"fifty game reported %f ",(gamesComplete * .02));
[self reportAchievementIdentifier:kAchievementGamesCompletedFifty percentComplete:(gamesComplete * .02)];
}
if (hundredGamePercentage != 100) {
gamesComplete = hundredGamePercentage * 100;
gamesComplete++;
[self reportAchievementIdentifier:kAchievementGamesCompletedHundred percentComplete:(gamesComplete * .01)];
}
if (fivehundredGamePercentage != 100) {
gamesComplete = fivehundredGamePercentage * 500;
gamesComplete++;
[self reportAchievementIdentifier:kAchievementGamesCompletedFivehundred percentComplete:(gamesComplete * .002)];
}
if (fivehundredGamePercentage != 100) {
gamesComplete = thousandGamePercentage * 1000;
gamesComplete++;
[self reportAchievementIdentifier:kAchievementGamesCompletedThousand percentComplete:(gamesComplete * .0001)];
}
NSLog(#"100 game percentage -- > %f", hundredGamePercentage);
}

Answer 1

Many problems...
I'm confused by the logic behind incrementing gamesComplete
You should store them locally instead of asking GameCenter every time.
-getAchievementPercentageForIdentifier: will always return 0 because GameKit methods are asynchronous.
GKAchievement.percentageComplete is a percentage. You need to multiply by 100.
I think you have to do your own achievement notifications.