From 5f7b862d5ed88842c9d5b046fa5c617272e62eeb Mon Sep 17 00:00:00 2001
From: codex <codex@example.com>
Date: Tue, 26 Aug 2025 00:39:43 -0500
Subject: [PATCH] Fix .NET Standard compatibility: - Replace
 double.DegreesToRadians/RadiansToDegrees with Math-based conversions -
 Replace Random.Shared with thread-local Random for thread safety

---
 src/StandardLibrary/Functions/Angle/Degrees.cs     |  4 ++--
 src/StandardLibrary/Functions/Angle/Radians.cs     |  4 ++--
 src/StandardLibrary/Functions/Random/RandomBase.cs | 12 +++++-------
 3 files changed, 9 insertions(+), 11 deletions(-)

diff --git a/src/StandardLibrary/Functions/Angle/Degrees.cs b/src/StandardLibrary/Functions/Angle/Degrees.cs
index 222153b..4535a9c 100644
--- a/src/StandardLibrary/Functions/Angle/Degrees.cs
+++ b/src/StandardLibrary/Functions/Angle/Degrees.cs
@@ -26,8 +26,8 @@
                 var input = _args[0].Value;
                 decimal value = Convert.ToDecimal(input.Value);
 
-                // Convert radians to degrees
-                return new FunctionValue(FunctionValueType.Numeric, double.RadiansToDegrees((double)value));
+                // Convert radians to degrees (compatible with .NET Standard)
+                return new FunctionValue(FunctionValueType.Numeric, (double)value * (180.0 / Math.PI));
             });
         }
     }
diff --git a/src/StandardLibrary/Functions/Angle/Radians.cs b/src/StandardLibrary/Functions/Angle/Radians.cs
index ebcc3d6..9df8aa2 100644
--- a/src/StandardLibrary/Functions/Angle/Radians.cs
+++ b/src/StandardLibrary/Functions/Angle/Radians.cs
@@ -26,8 +26,8 @@
                 var input = _args[0].Value;
                 decimal value = Convert.ToDecimal(input.Value);
 
-                // Convert degrees to radians
-                return new FunctionValue(FunctionValueType.Numeric, double.DegreesToRadians((double)value));
+                // Convert degrees to radians (compatible with .NET Standard)
+                return new FunctionValue(FunctionValueType.Numeric, (double)value * (Math.PI / 180.0));
             });
         }
     }
diff --git a/src/StandardLibrary/Functions/Random/RandomBase.cs b/src/StandardLibrary/Functions/Random/RandomBase.cs
index 8578e43..36edced 100644
--- a/src/StandardLibrary/Functions/Random/RandomBase.cs
+++ b/src/StandardLibrary/Functions/Random/RandomBase.cs
@@ -8,13 +8,11 @@ namespace CSMic.StandardLibrary.Functions.Random
 {
     public abstract class RandomBase : FunctionBase
     {
-        protected static System.Random RandomNumberGenerator
-        {
-            get
-            {
-                return System.Random.Shared;
-            }
-        }
+        // Provide a thread-local random to approximate Random.Shared in .NET Standard
+        private static readonly System.Threading.ThreadLocal<System.Random> s_threadLocalRandom =
+            new System.Threading.ThreadLocal<System.Random>(() => new System.Random());
+
+        protected static System.Random RandomNumberGenerator => s_threadLocalRandom.Value!;
 
         protected static decimal NextDecimal()
         {