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Assets/Scripts/BaseNcoding/StringGenerator.cs

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+using System;
+using System.Text;
+
+namespace BaseNcoding
+{
+	public static class StringGenerator
+	{
+		private const string LettersAndDigits = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+
+		public static string GetAlphabet(int charsCount)
+		{
+			var result = new StringBuilder(charsCount);
+			int i = 0;
+			int count = 0;
+			do
+			{
+				char c = (char)i;
+				if (!char.IsControl(c) && !char.IsWhiteSpace(c))
+				{
+					result.Append(c);
+					count++;
+				}
+				i++;
+			}
+			while (count < charsCount);
+
+			return result.ToString();
+		}
+
+		public static string GetRandom(int size, bool onlyLettersAndDigits)
+		{
+			Random r = new Random();
+			if (onlyLettersAndDigits)
+			{
+				var result = new char[size];
+				for (int i = 0; i < size; i++)
+					result[i] = LettersAndDigits[r.Next(LettersAndDigits.Length)];
+				return new string(result);
+			}
+
+			var data = new byte[size];
+			for (int i = 0; i < size; i++)
+				data[i] = (byte) r.Next(32, 127);
+			var encoding = new ASCIIEncoding();
+			return encoding.GetString(data);
+		}
+	}
+}