static void RunTests_Struct()
{
Console.WriteLine("---------Value-------------");
Stopwatch w = new Stopwatch();
sVector v1 = new sVector(1, 1);
sVector v2 = new sVector(2, 2);
w.Start();
// sVector v3 = Add(v1,v2);
sVector v3 = v1 + v2;
w.Stop();
Console.WriteLine($"Time elapsed = {w.ElapsedTicks} ticks");
Console.WriteLine($"{v1} + {v2} = {v3}");
// copy by value, different objects
var v4 = v3;
Console.WriteLine($"v3 & v4 are same: {Object.ReferenceEquals(v3,v4)}");
v4.X = 5;
Console.WriteLine($"Modified v4. {v3} != {v4}");
// hash codes - dictionary - maybe internally for gc
Console.WriteLine($"Hashcodes : v1:{v1.GetHashCode()}, v2: {v2.GetHashCode()}," +
$"v3:{v3.GetHashCode()}, v4: {v4.GetHashCode()}");
}
public static void RunTests_ArrayList()
{
Console.WriteLine("---------Array List-------------");
// add a value vector object to an array list 100 times
ArrayList l = new ArrayList();
for (int i = 0; i < 100; i++)
{
var sV = new sVector(1, 1);
l.Add(sV);
}
}
public static void RunTests_GenericList()
{
Console.WriteLine("---------Generic List-------------");
// add a value vector object to a generice list
// List<sVector> l = new List<sVector>();
var l = new List <sVector>();
for (int i = 0; i < 100; i++)
{
var sV = new sVector(1, 1);
l.Add(sV);
}
}
static sVector Add(sVector v1, sVector v2) => new sVector(v1.X + v2.X, v1.Y + v2.Y);