// Use this for initialization
void Start()
{
MathNet.Numerics.Random.CryptoRandomSource rn = new MathNet.Numerics.Random.CryptoRandomSource();
this.gameObject.FixedUpdateAsObservable().Buffer(TimeSpan.FromMilliseconds(100)).Subscribe(x =>
{
if (rn.NextDouble() > 0.9d)
{
//set position
GameObject cube = Instantiate(obstaclePrefab);
ObstacleObjects.Add(cube);
cube.transform.position = new Vector3(this.transform.position.x + SpawnStartOffset.x, this.transform.position.y + SpawnStartOffset.y, this.transform.position.z + SpawnStartOffset.z);
//set color
cube.GetComponent <Renderer>().material.color = Color.cyan;
// destroy if out of bounds
cube.FixedUpdateAsObservable().Buffer(TimeSpan.FromMilliseconds(100)).Subscribe(t =>
{
float offsetX = Math.Abs(cube.transform.position.x - this.transform.position.x);
float offsetY = Math.Abs(cube.transform.position.y - this.transform.position.y);
float offsetZ = Math.Abs(cube.transform.position.z - this.transform.position.z);
if (offsetX > SpawnMaxOffset.x || offsetY > SpawnMaxOffset.y || offsetZ > SpawnMaxOffset.z)
{
GameObject.Destroy(cube);
ObstacleObjects.Remove(cube);
}
}).AddTo(this);
}
}).AddTo(this);
//clean up after exit
Observable.OnceApplicationQuit().Subscribe((exit) => {
foreach (GameObject obstacleObject in ObstacleObjects)
{
if (obstacleObject != null)
{
GameObject.DestroyImmediate(obstacleObject);
}
}
});
}
/// <summary>
/// Run example
/// </summary>
/// <seealso cref="http://en.wikipedia.org/wiki/Random_number_generation">Random number generation</seealso>
/// <seealso cref="http://en.wikipedia.org/wiki/Linear_congruential_generator">Linear congruential generator</seealso>
/// <seealso cref="http://en.wikipedia.org/wiki/Mersenne_twister">Mersenne twister</seealso>
/// <seealso cref="http://en.wikipedia.org/wiki/Lagged_Fibonacci_generator">Lagged Fibonacci generator</seealso>
/// <seealso cref="http://en.wikipedia.org/wiki/Xorshift">Xorshift</seealso>
public void Run()
{
// All RNG classes in MathNet have next counstructors:
// - RNG(int seed, bool threadSafe): initializes a new instance with specific seed value and thread safe property
// - RNG(int seed): iуууnitializes a new instance with specific seed value. Thread safe property is set to Control.ThreadSafeRandomNumberGenerators
// - RNG(bool threadSafe) : initializes a new instance with the seed value set to DateTime.Now.Ticks and specific thread safe property
// - RNG(bool threadSafe) : initializes a new instance with the seed value set to DateTime.Now.Ticks and thread safe property set to Control.ThreadSafeRandomNumberGenerators
// All RNG classes in MathNet have next methods to produce random values:
// - double[] NextDouble(int n): returns an "n"-size array of uniformly distributed random doubles in the interval [0.0,1.0];
// - int Next(): returns a nonnegative random number;
// - int Next(int maxValue): returns a random number less then a specified maximum;
// - int Next(int minValue, int maxValue): returns a random number within a specified range;
// - void NextBytes(byte[] buffer): fills the elements of a specified array of bytes with random numbers;
// All RNG classes in MathNet have next extension methods to produce random values:
// - long NextInt64(): returns a nonnegative random number less than "Int64.MaxValue";
// - int NextFullRangeInt32(): returns a random number of the full Int32 range;
// - long NextFullRangeInt64(): returns a random number of the full Int64 range;
// - decimal NextDecimal(): returns a nonnegative decimal floating point random number less than 1.0;
// 1. Multiplicative congruential generator using a modulus of 2^31-1 and a multiplier of 1132489760
var mcg31M1 = new Mcg31m1(1);
Console.WriteLine(@"1. Generate 10 random double values using Multiplicative congruential generator with a modulus of 2^31-1 and a multiplier of 1132489760");
var randomValues = mcg31M1.NextDoubles(10);
for (var i = 0; i < randomValues.Length; i++)
{
Console.Write(randomValues[i].ToString("N") + @" ");
}
Console.WriteLine();
Console.WriteLine();
// 2. Multiplicative congruential generator using a modulus of 2^59 and a multiplier of 13^13
var mcg59 = new Mcg59(1);
Console.WriteLine(@"2. Generate 10 random integer values using Multiplicative congruential generator with a modulus of 2^59 and a multiplier of 13^13");
for (var i = 0; i < 10; i++)
{
Console.Write(mcg59.Next() + @" ");
}
Console.WriteLine();
Console.WriteLine();
// 3. Random number generator using Mersenne Twister 19937 algorithm
var mersenneTwister = new MersenneTwister(1);
Console.WriteLine(@"3. Generate 10 random integer values less then 100 using Mersenne Twister 19937 algorithm");
for (var i = 0; i < 10; i++)
{
Console.Write(mersenneTwister.Next(100) + @" ");
}
Console.WriteLine();
Console.WriteLine();
// 4. Multiple recursive generator with 2 components of order 3
var mrg32K3A = new Mrg32k3a(1);
Console.WriteLine(@"4. Generate 10 random integer values in range [50;100] using multiple recursive generator with 2 components of order 3");
for (var i = 0; i < 10; i++)
{
Console.Write(mrg32K3A.Next(50, 100) + @" ");
}
Console.WriteLine();
Console.WriteLine();
// 5. Parallel Additive Lagged Fibonacci pseudo-random number generator
var palf = new Palf(1);
Console.WriteLine(@"5. Generate 10 random bytes using Parallel Additive Lagged Fibonacci pseudo-random number generator");
var bytes = new byte[10];
palf.NextBytes(bytes);
for (var i = 0; i < bytes.Length; i++)
{
Console.Write(bytes[i] + @" ");
}
Console.WriteLine();
Console.WriteLine();
// 6. A random number generator based on the "System.Security.Cryptography.RandomNumberGenerator" class in the .NET library
var systemCrypto = new CryptoRandomSource();
Console.WriteLine(@"6. Generate 10 random decimal values using RNG based on the 'System.Security.Cryptography.RandomNumberGenerator'");
for (var i = 0; i < 10; i++)
{
Console.Write(systemCrypto.NextDecimal().ToString("N") + @" ");
}
Console.WriteLine();
Console.WriteLine();
// 7. Wichmann-Hill’s 1982 combined multiplicative congruential generator
var rngWh1982 = new WH1982();
Console.WriteLine(@"7. Generate 10 random full Int32 range values using Wichmann-Hill’s 1982 combined multiplicative congruential generator");
for (var i = 0; i < 10; i++)
{
Console.Write(rngWh1982.NextFullRangeInt32() + @" ");
}
Console.WriteLine();
Console.WriteLine();
// 8. Wichmann-Hill’s 2006 combined multiplicative congruential generator.
var rngWh2006 = new WH2006();
Console.WriteLine(@"8. Generate 10 random full Int64 range values using Wichmann-Hill’s 2006 combined multiplicative congruential generator");
for (var i = 0; i < 10; i++)
{
Console.Write(rngWh2006.NextFullRangeInt32() + @" ");
}
Console.WriteLine();
Console.WriteLine();
// 9. Multiply-with-carry Xorshift pseudo random number generator
var xorshift = new Xorshift();
Console.WriteLine(@"9. Generate 10 random nonnegative values less than Int64.MaxValue using Multiply-with-carry Xorshift pseudo random number generator");
for (var i = 0; i < 10; i++)
{
Console.Write(xorshift.NextInt64() + @" ");
}
Console.WriteLine();
}