public void ImageTest()
{
var random = new RandomState();
var seed = DateTime.Now.Ticks;
var width = 640;
var height = 640;
var white = 0;
var black = 0;
var bmp = new Bitmap(width, height);
random.SetSeed(seed);
for (var x = 0; x < width; x++)
{
for (var y = 0; y < height; y++)
{
Color color;
var r = random.Range(0, 1);
if (r == 0)
{
color = Color.White;
white += 1;
}
else
{
color = Color.Black;
black += 1;
}
bmp.SetPixel(x, y, color);
}
}
Console.WriteLine($"white:{white}({white / (double)(white + black) * 100:00.00}%), black:{black}({black / (double)(white + black) * 100:00.00}%), total:{white+black}({width}x{height})");
bmp.Save($"image-{DateTime.Now.ToString("yyyy-MM-dd HH-mm-ss")} seed({seed}).png", ImageFormat.Png);
}
public void RangeTest()
{
var random = new RandomState();
random.SetSeed(DateTime.Now.Ticks);
// 試行回数
ulong count = 10000000L;
// 範囲
var min = 0;
var max = 100;
var maxW = 0.0D;
var minW = 1.0D;
for (ulong i = 0; i < count; i++)
{
var w = random.Range(min, max);
if (maxW < w)
{
maxW = w;
}
else if (minW > w)
{
minW = w;
}
if (i % (ulong)(count / 10000) == 0)
{
Console.Write("{0:00.0000} %", ((double)i / (double)count * 100));
Console.SetCursorPosition(0, Console.CursorTop);
}
}
Console.WriteLine($"MaxValue = {maxW}");
Console.WriteLine($"MinValue = {minW}");
}
/// <summary>
/// 疑似乱数ジェネレーターの状態を決めるシード値を設定します。
/// </summary>
/// <param name="seed">擬似乱数系列の開始値を計算するために使用するシード値。</param>
public static void SetSeed(long seed)
{
_State.SetSeed((ulong)seed);
}