GameRandom

namespace Griff;

public sealed class GameRandom : Random

Random numbers that a rewind takes back: the same sequence new Random(seed) gives (Knuth’s subtractive generator, as .NET has always made it from a seed), with where it has got to kept in fields of its own, so a rewind snapshot keeps it and putting the game back puts the numbers back too. Each game has one (what Rand draws on); a component or a script that wants numbers of its own, seeded (a board dealt the same way every time), keeps one in a field.

Methods

Copy

public GameRandom Copy()

A copy that gives the same numbers from here on, without drawing on this one.

Next

public override int Next()

Next

public override int Next(int maxValue)

Next

public override int Next(int minValue, int maxValue)

NextBytes

public override void NextBytes(byte[] buffer)

NextBytes

public override void NextBytes(Span<byte> buffer)

NextDouble

public override double NextDouble()

NextInt64

public override long NextInt64()

NextInt64

public override long NextInt64(long maxValue)

NextInt64

public override long NextInt64(long minValue, long maxValue)

NextSingle

public override float NextSingle()

Reseed

public void Reseed(int seed)

Starts again from seed.

Sample

protected override double Sample()

Unseeded

public static GameRandom Unseeded()

A new sequence from a seed of its own, different each time.