Notes of a Developer » others

The Terminology of the Basic Trigonometric Functions

Vladimir Boychentsov — Thu, 22 Dec 2011 19:22:16 +0000

Function	C function	Definition
Sine	sinf()	The ratio of the length of the opposite to the length of the hypotenuse
Cosine	cosf()	The ratio of the length of the adjacent to the length of the hypotenuse
Tangent	tanf()	The ratio of the length of the opposite to the length of the adjacent

Simple EKDemo – EKEvent

Vladimir Boychentsov — Sun, 06 Nov 2011 00:28:57 +0000

Now we have controller for creating events. This controller included from 4.0 iOS SDK.

SimpleEKDemo

The application uses table views to display EKCalendar object and EKEvent objects retrieved from an EKEventStore object. It implements EKEventViewController for viewing and editing existing EKEvents, and uses EKEventEditViewController for creating new EKEvents.

DDProgressView – Custom Progress View

Vladimir Boychentsov — Sat, 05 Nov 2011 15:47:23 +0000

DDProgressView is a custom progress view à la Twitter for iPhone.

DDProgressView works on both iOS and Mac OS. You must also compile the AppKitCompatibility.m file when targeting Mac OS.

Thanks, Damien DeVille!

My Custom UITextView with syntax highlighting

Vladimir Boychentsov — Sat, 05 Nov 2011 00:51:21 +0000

“Geo” renamed to “Photo Info Editor”

Vladimir Boychentsov — Sun, 21 Aug 2011 21:17:26 +0000

“Geo” renamed to “Photo Info Editor” alpha 1.0.1

Added Sparkle updater.

Download

Photo taken on Nikkon photo cam without GPS. Original date in NSDatePicker of photo.

Nice QR-code generator

Vladimir Boychentsov — Mon, 15 Aug 2011 06:24:53 +0000

QR-code generator

Example: QR-code on my twitter

Problem with highlighting syntax in Xcode 4

Vladimir Boychentsov — Fri, 12 Aug 2011 10:18:36 +0000

1. Close Xcode
2. go to ~/Library/Application Support/Xcode/Color Themes
3. remove your themes
4. Start Xcode
5. Done

Very Easy! hahahah

UPDATE: Do not add your *.h files to prefix file!

Custom message Box

Vladimir Boychentsov — Thu, 14 Jul 2011 21:10:40 +0000

Custom message box on Cocoa, like iOS messsge bubbles!

We need NSView and 5 minutes :)
Simple drawing bubble control

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[NSGraphicsContext saveGraphicsState];

[[NSColor whiteColor] set];
NSRectFill(frameRect);

/* Draw Shadow */
NSShadow *shadow = [[NSShadow alloc] init];
[shadow setShadowColor:[[NSColor blackColor] colorWithAlphaComponent:0.5]];
[shadow setShadowOffset:NSMakeSize(3.0, -3.0)];
[shadow setShadowBlurRadius:2.5];
[shadow set];

/* Draw Control */
NSRect myRect = NSMakeRect(95, 10, frameRect.size.width - 115, frameRect.size.height-20);

NSBezierPath *path = [NSBezierPath bezierPath];
[path setLineJoinStyle:NSRoundLineJoinStyle];
[path appendBezierPathWithRoundedRect:myRect xRadius:8.0 yRadius:8.0];

// Draw arrow
[path moveToPoint:NSMakePoint(frameRect.size.width-95, frameRect.size.height-20)];
[path lineToPoint:NSMakePoint(frameRect.size.width-80, frameRect.size.height-30)];
[path lineToPoint:NSMakePoint(frameRect.size.width-95, frameRect.size.height-40)];

float red = 0.5;
float green = 0.5;
float blue = 0.5;
NSColor *startingColor = [NSColor colorWithCalibratedRed:red+0.3f
green:green+0.3f
blue:blue+0.3f
alpha:1.0];

NSColor *endingColor = [NSColor colorWithCalibratedRed:red-0.05f
green:green-0.05f
blue:blue-0.05f
alpha:1.0];

NSGradient *gradient = [[[NSGradient alloc] initWithStartingColor:startingColor
endingColor:endingColor] autorelease];
[path fill];
[gradient drawInBezierPath:path angle:-90];
[NSGraphicsContext restoreGraphicsState];
[shadow release];

MessageBox sources

Вакансии Injoit Ltd

Vladimir Boychentsov — Fri, 15 Apr 2011 09:59:58 +0000

Integrate High Scores service of mob1serv

Vladimir Boychentsov — Mon, 08 Nov 2010 15:32:14 +0000

Для начала нужно немного ознакомиться на сайте mob1serv как это работает.

Скачать либу с сайта или которую собрал я, немного модифицированную, добавил пару расширений. В мой версии также вложен пример с сайта mob1serv.

Начнем…

1. Нам нужно проверить интернет соединение, лучше всего воспользоваться Reachability, уже готовым решением от разработчиков Apple. На этом моменте останавливаться не будем, в примере все показано.

2. Перед тем как мы будем работать непосредственно с API либы, продемострирую как ее подключить к проекту

3. Необходимо зайти на admin.mob1serv.com и создать учетную запись.
- войти и создать новое приложение, нажав на “+ Add a new Application”;
- выбрать HighScores -> Edit game modes и обавить mode;

- перейти на вкладку Connection Info и узнать информацию для подключения.

4. Вот теперь начнем писать код.

Подпишемся/отпишемся на нотификации

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- (void) subscribe {
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(informationGettedNotificationReceived:) name:kHighScoresNotificationInformatioGetted object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(successNotificationReceived:) name:kMobservNotificationAccessTokenReceived object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(errorNotificationReceived:) name:kMobservNotificationAccessTokenReceiveFailed object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(scoreAddedNotificationReceived:) name:kHighScoresNotificationScoreAdded object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(scoreGettedNotificationReceived:) name:kHighScoresNotificationScoreGetted object:nil];
subscribed = YES;
}

- (void) unsubscribe {
[[NSNotificationCenter defaultCenter] removeObserver:self name:kHighScoresNotificationInformatioGetted object:nil];
[[NSNotificationCenter defaultCenter] removeObserver:self name:kMobservNotificationAccessTokenReceived object:nil];
[[NSNotificationCenter defaultCenter] removeObserver:self name:kMobservNotificationAccessTokenReceiveFailed object:nil];
[[NSNotificationCenter defaultCenter] removeObserver:self name:kHighScoresNotificationScoreAdded object:nil];
[[NSNotificationCenter defaultCenter] removeObserver:self name:kHighScoresNotificationScoreGetted object:nil];
subscribed = NO;
}

Подключаемся к серверу

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#define limitScores 25

#define mAppID 200
#define mGameID 400 // Ваш game id
#define mConsumerKey @"sdfsadfjoisdf"
#define mSecretKey @"sdfsadfjoisdf"

- (void) connect {
HighScoresService* hScore = [HighScoresService sharedInstance];
hScore.appid = [NSNumber numberWithInt:mAppID];
[hScore setConsumerKey:mConsumerKey andSecret:mSecretKey];
[hScore getAccessToken];
}

В случае успешного подключений приходит сообщение и сразу делаем запрос на обновление результатов

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- (void)successNotificationReceived:(NSNotification*)notification {
[self refreshResults];
}

- (void)refreshResults {
[scores removeAllObjects]; // array
[(HighScoresService*)[HighScoresService sharedInstance] getScoresForGame:mGameID scoreLimit:limitScores];
}

Получаем информацию про запрашиваемые скоры и сами скоры

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- (void)informationGettedNotificationReceived:(NSNotification*)notification {
// так я сохраняю информацию о запросе
self.dictInfo = (NSDictionary*)[notification.userInfo objectForKey:@"info"];
// получаю количество записей всего
totalCount = [[self.dictInfo objectForKey:@"total_count"] intValue];
}

// получаем скоры
- (void)scoreGettedNotificationReceived:(NSNotification*)notification {
// get scores and insert ot array
NSDictionary* dict = (NSDictionary*)[notification.userInfo objectForKey:@"result"];
scores = [[NSMutableArray alloc] initWithArray:[dict objectForKey:@"scores"]];
...
}

Пример добавления записи в онлайн скоры

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HighScore* score = [[[HighScore alloc] init] autorelease];
score.index = [NSNumber numberWithInt:0];
score.limit = [NSNumber numberWithInt:limitScores];
score.userName = name;
score.value = [NSNumber numberWithInt:score];
score.subgameId = [NSString stringWithFormat:@"%d",mGameID];
[[HighScoresService sharedInstance] addScore:score];

В scoreAddedNotificationReceived:(NSNotification*)notification получим калбек с результатом добавления

Вот к примеру как можно получить следующие 25 результатов

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- (void)loadMore25Scores {
if (totalCount != loadedScores) {
[[HighScoresService sharedInstance] getScoresForGame:idGame
scoreLimit:(totalCount-limitScores >= limitScores)? limitScores : totalCount-loadedScores
fromIndex:loadedScores ];
loadedScores += (totalCount-limitScores >= limitScores)? limitScores : totalCount-loadedScores;
}
}