Ben-G

//: Playground - noun: a place where people can play

import Foundation

/*
Basic Monad according to definition in: http://stackoverflow.com/questions/27750046/is-a-collection-with-flatmap-a-monad

The requirements for being a monad

- A monad has to be a type constructor F[_] that takes one type argument. For example, F could be List, Function0, Option, etc.

Ben-G

import Foundation

class A { var x = "a" }

var a:A = A()

isUniquelyReferencedNonObjC(&a)

var b = a

Ben-G

//: Playground - noun: a place where people can play

import Foundation

let arr = [1,5,7,8]

let pointer = UnsafeMutablePointer<[Int]>.alloc(4)
pointer.initialize(arr)

let x = pointer.memory[3]

Ben-G

// Workaround for Parse 1.6.4 and Xcode 6.3, see: http://stackoverflow.com/questions/28953306/pfobject-does-not-have-a-member-named-subscript/29015269#29015269
extension PFObject {
  subscript(index: String) -> AnyObject? {
    get {
      return self.valueForKey(index)
    }
    set(newValue) {
      if let newValue: AnyObject = newValue {
        self.setValue(newValue, forKey: index)
      }

Ben-G

protocol Initializable {
  init()
}

class A : Initializable {
  var content:String
  
  required init() {
    content = "TestContent"
  }

Ben-G

/* 
Generates a random number with upper bound of provided value.
Truncates upper bound to 32-Bit values.
*/
func randomInteger(var maximum: Int) -> Int {
  if maximum > Int(Int32.max) {
    maximum = Int(Int32.max)
  }
  
  return Int(arc4random_uniform(

Ben-G

-(void) applicationWillResignActive:(UIApplication *)application
{
	[[CCDirector sharedDirector] pause];
}

-(void) applicationDidEnterBackground:(UIApplication*)application
{
	[[CCDirector sharedDirector] stopAnimation];
}

Ben-G

OALSimpleAudio *audio = [OALSimpleAudio sharedInstance];
[audio playEffect:@"your_file_name"]

Ben-G

- (CCParticleSystem *)createParticleEffectInCode {

  CCParticleSystem *emitter = [[CCParticleSystem alloc] initWithTotalParticles:50];
	emitter.texture = [[CCTextureCache sharedTextureCache] addImage: @"stars-grayscale.png"];
    
	// duration
	emitter.duration = CCParticleSystemDurationInfinity;
    
	// Gravity Mode: gravity
	emitter.gravity = CGPointZero;

Ben-G

- (NSArray *)generate:(int)n randomUniqueNumbersBetween:(int)lowerLimit upperLimit:(int)upperLimit
{
    NSMutableArray *randomNumberArray = [NSMutableArray arrayWithCapacity:upperLimit-lowerLimit];
    
    // add all numbers to array
    for (int i = lowerLimit; i < upperLimit; i++)
    {
        [randomNumberArray addObject:@(i)];
    }