Right now I am at the stage where I am writing foundation to manage my sound effects and background music for my upcoming game. I found two most popular way to play sound effects in SpriteKit:

• SKAction
• AVAudioPlayer

By default, Sorting an array of string containing numbers is not sorted in natural order of numbers. They are sorted in natural order of string characters.

For example objects in array have property of type string which are all literal of numbers:

slot1.indexStr = “1”
slot2.indexStr = “14”
slot3.indexStr = “2”

slots = [slot1, slot2, slot3]
 

 slots = slots.sorted { $0.indexStr! < $1.indexStr! }

 1
 14
 2
 

It sorted alphabetically based on first character of string. What we want is to sort based on values of number.

I have this neat view controller setup for my comments system. At the bottom of the screen is inputAccessoryView which will be fixed until interacted with to bring keypad up for user to post comments. When keypad is up view will be above it and if keypad is dismissed then view will stick at the bottom of screen.

To achieve this I override two methods of my UIViewController:

-(BOOL)canBecomeFirstResponder{
    return YES;
}

-(UIView *)inputAccessoryView{
    return commentInputView.contentView;
}

I am using custom xib and my custom input view is composed within the class.

It works fine except in iPhone with notch.

The content of my UICollectionView flows in horizontal direction. Height of items are fixed but width of each are dynamic based on the length of text. For this example I am using only UILabel in my UICollectionViewCell. My UICollectionViewCell is custom xib.

• Leading : 0
• Trailing : 0
• Top : 0
• Height : 44

It's amazing how modern Pixel Art captures the true simplicity yet also expressing creative masterpieces. I find so much solace staring at the world presented by games like Stardew Valley and Kynseed.

In my spare time I am making 2d pixel art game for iOS and macOS for my hobby. I found a free pixel art font called PixelDigivolve to use it for my texts. There was this behaviour that caught my attention where font was being rendered very blurry. The edges were not sharp.

SpriteKit has filtering mode called nearest-neighbour for rendering textures.

Sorting an array of custom objects is fair simple. NSSortDescriptor works awesome for this. Lets see an example:

@interface Parent : NSObject
@property(strong, nonatomic) NSString *name;
@end

NSArray *arrayOfParents = @[parent1, parent2];

If I want to sort array of parents by their name then I would use something like:

I came across very curious problem whose cause I couldn’t have come to know about it without serious debugging because this was something that didn’t catch my attention. I had a task that required capturing snapshot of UIView with hierarchy of subviews and perform few interactive transformation animations on view immediately after - giving feeling of instant multitask. Delay should have been negligent for naked eyes or tolerant but it wasn’t.

Update: Second part of series is available.

I am reading a book Coders at work. Each chapter consists of interview with an experts in the field of computer programming, engineering and science. Most of them had started programming during 70’s-80's, the time when there wasn’t many choice of programming languages available like modern day. Most of them were programming in low-level like assembly or binary. I was thrilled and excited from reading of their journey. It motivated me to learn small things about assembly and learn more about machine closely. I am writing this blog post on my journey of learning assembly.

I have a macbook pro. It’s a 64-bit machine. Intel based. I started collecting information on resources and tips to get started. My machine is x86-64 so it is x86 assembly. I found little resources on starting assembly on mac, and among what I found was for linux. Throughout the search I have collected good blogs and resources that I’ll be sharing. This post is more about what I am discovering or learning rather than tutorial.