Implement file system resource manager. (Amend)

Assets/Cryville/Common/Qualified.cs

@@ -0,0 +1,28 @@
+using System;
+
+namespace Cryville.Common {
+	public struct Qualified<T> : IFormattable where T : IConvertible {
+		static readonly string _prefixes = "yzafpnμm kMGTPEZY";
+		public T Value { get; set; }
+		public string Unit { get; set; }
+
+		public Qualified(string unit) : this(default(T), unit) { }
+		public Qualified(T value, string unit) {
+			Value = value;
+			Unit = unit;
+		}
+
+		public override string ToString() { return ToString("G3"); }
+		public string ToString(string format) { return ToString(format, null); }
+		public string ToString(string format, IFormatProvider formatProvider) {
+			double value = Value.ToDouble(formatProvider);
+			int expIndex = (int)System.Math.Log10(value) / 3;
+			if (expIndex == 0) {
+				return value.ToString(format, formatProvider) + Unit;
+			}
+			int prefixIndex = System.Math.Clamp(expIndex + 8, 0, _prefixes.Length - 1);
+			value /= System.Math.Pow(1e3, prefixIndex - 8);
+			return value.ToString(format, formatProvider) + _prefixes[prefixIndex] + Unit;
+		}
+	}
+}

Assets/Cryville/Common/Qualified.cs.meta

@@ -0,0 +1,11 @@
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+MonoImporter:
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+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
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