hondacrx
109 lines
2.9 KiB
C#
109 lines
2.9 KiB
C#
/*
|
|
* Copyright (C) 2012-2017 CypherCore <http://github.com/CypherCore>
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
using System;
|
|
using System.Diagnostics.Contracts;
|
|
|
|
public class RandomHelper
|
|
{
|
|
private readonly static Random rand;
|
|
|
|
static RandomHelper()
|
|
{
|
|
rand = new Random();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Returns a random number between 0.0 and 1.0.
|
|
/// </summary>
|
|
/// <returns></returns>
|
|
public static double NextDouble()
|
|
{
|
|
return rand.NextDouble();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Returns a nonnegative random number.
|
|
/// </summary>
|
|
/// <returns></returns>
|
|
public static uint Rand32()
|
|
{
|
|
return (uint)rand.Next();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Returns a nonnegative random number less than the specified maximum.
|
|
/// </summary>
|
|
/// <param name="maxValue"></param>
|
|
/// <returns></returns>
|
|
public static uint Rand32(dynamic maxValue)
|
|
{
|
|
return (uint)rand.Next(maxValue);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Returns a random number within a specified range.
|
|
/// </summary>
|
|
/// <param name="minValue"></param>
|
|
/// <param name="maxValue"></param>
|
|
/// <returns></returns>
|
|
public static int IRand(int minValue, int maxValue)
|
|
{
|
|
return rand.Next(minValue, maxValue);
|
|
}
|
|
public static uint URand(dynamic minValue, dynamic maxValue)
|
|
{
|
|
return (uint)rand.Next(Convert.ToInt32(minValue), Convert.ToInt32(maxValue));
|
|
}
|
|
public static float FRand(float min, float max)
|
|
{
|
|
Contract.Assert(max >= min);
|
|
return (float)(rand.NextDouble() * (max - min) + min);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Returns true if rand.Next less then i
|
|
/// </summary>
|
|
/// <param name="i"></param>
|
|
/// <returns></returns>
|
|
public static bool randChance(float i)
|
|
{
|
|
return i > rand.Next(0, 100);
|
|
}
|
|
|
|
public static double randChance()
|
|
{
|
|
return rand.NextDouble() * 100.0;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Fills the elements of a specified array of bytes with random numbers.
|
|
/// </summary>
|
|
/// <param name="buffer"></param>
|
|
public static void NextBytes(byte[] buffer)
|
|
{
|
|
rand.NextBytes(buffer);
|
|
}
|
|
|
|
public static T RAND<T>(params T[] args)
|
|
{
|
|
int rand = IRand(0, args.Length - 1);
|
|
|
|
return args[rand];
|
|
}
|
|
}
|
|
|