To get started let's set up our enum, Straws and Person classes
enum Straw { Long, Short }
class Straws
{
static Random rnd = new Random(DateTime.Now.Millisecond);
Straw[] _straws;
public int length {
get { return _straws.Length; } }
public Straws(int
NumOfStraws, int
NumOfShortStraws = 1)
{
_straws = new Straw[NumOfStraws];
while (NumOfShortStraws > 0) {
var randomIndex = rnd.Next(NumOfStraws);
if (_straws[randomIndex] != Straw.Short) {
_straws[randomIndex] = Straw.Short;
NumOfShortStraws--;
}
}
}
public Straw this[int i] {
get {
var selectedStraw = _straws[i];
for (; i < _straws.Length-1; i++)
_straws[i] = _straws[i + 1];
Array.Resize(ref _straws,
_straws.Length - 1);
return selectedStraw;
}
}
}
class Person
{
static Random rnd = new Random(DateTime.Now.Millisecond);
public string Name { get; set; }
public Straw? Straw { get; private set; }
public void
PickStraw(Straws Straws) { Straw =
Straws[rnd.Next(Straws.length)]; }
public override string
ToString() { return $"{Name} picked a {Straw} straw"; }
}
class Program
{
static void Main(string[] args)
{
var ppl = new Person[] { new Person { Name = "Pawel" },
new Person {Name="Magda" }, new Person { Name="Tomek" },
new Person { Name="Jakub" }, new Person { Name="Marin" } };
var straws = new Straws(ppl.Length);
var _lock = new object();
using (var cdEvent
= new CountdownEvent(ppl.Length))
{
foreach (var person in ppl)
Task.Factory.StartNew(p => {
lock(_lock)
((Person)p).PickStraw(straws);
cdEvent.Signal();
}, person);
cdEvent.Wait();
}
foreach(var p in ppl)
Console.WriteLine(p.ToString());
}
}
