Rand.cs

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using System;
 
public static class Rand
{
    public static int MaxBytes = 1111;
 
    public static Random _random = new Random();
 
    public static byte[] bytes;
 
    public static void InitBytes(int a)
    {
        SetSeed(a);
        bytes = new byte[MaxBytes];
        for (int i = 0; i < MaxBytes; i++)
        {
            bytes[i] = (byte)_random.Next(256);
        }
        SetSeed();
    }
 
    public static void UseSeed(int seed, Action action)
    {
        SetSeed(seed);
        action();
        SetSeed();
    }
 
    public static int rndSeed(int a, int seed)
    {
        SetSeed(seed);
        int result = rnd(a);
        SetSeed();
        return result;
    }
 
    public static void SetSeed(int a = -1)
    {
        _random = ((a == -1) ? new Random() : new Random(a));
    }
 
    public static int Range(int min, int max)
    {
        return _random.Next(max - min) + min;
    }
 
    public static float Range(float min, float max)
    {
        return (float)(_random.NextDouble() * (double)(max - min) + (double)min);
    }
 
    public static int rnd(int max)
    {
        if (max > 0)
        {
            return _random.Next(max);
        }
        return 0;
    }
 
    public static float rndf(float max)
    {
        return Range(0f, max);
    }
 
    public static int rndSqrt(int max)
    {
        return _random.Next(_random.Next(max) + 1);
    }
 
    public static int rndNormal2(int max)
    {
        int num = max / 2;
        return num + rnd(rnd(rnd(num) + 1) + 1) - rnd(rnd(rnd(num) + 1) + 1);
    }
 
    public static int rndNormal(int max)
    {
        int num = max / 2;
        return num + rnd(rnd(num) + 1) - rnd(rnd(num) + 1);
    }
}