daily update on 20230301 by nitload youmu, file struct cahnged and more vec func added

源代码/StgSharp/Vector/GetLength.cs

@@ -0,0 +1,27 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace StgSharp.Math
+{
+    public static unsafe partial class VectorCalc
+    {
+        public static float GetLength(this Vec3D vec)
+        {
+            return Calc.Sqrt(
+                vec.X * vec.X +
+                vec.Y * vec.Y +
+                vec.Z * vec.Z
+                );
+        }
+
+        public static float GetLength(this Vec2D vec)
+        {
+            return Calc.Sqrt(
+                vec.X * vec.X + 
+                vec.Y * vec.Y
+                );
+        }
+
+    }
+}