From efe517abeac6d8be86f1c6dbc5aa323cde642a60 Mon Sep 17 00:00:00 2001
From: Marc Hernandez <marcsh@gmail.com>
Date: Tue, 4 Oct 2022 09:34:23 -0700
Subject: [PATCH] x) Implement SizeOf x) And clamp and PerlinToContinent x)
 Optimize loaded scripts as Release

---
 Utilities.Interop.cs |  2 +-
 math/fn.cs           | 39 +++++++++++++++++++++++++++++++++++++++
 scr/Script.cs        |  7 ++-----
 3 files changed, 42 insertions(+), 6 deletions(-)

diff --git a/Utilities.Interop.cs b/Utilities.Interop.cs
index de5d43b..2c88928 100644
--- a/Utilities.Interop.cs
+++ b/Utilities.Interop.cs
@@ -144,7 +144,7 @@ namespace lib
 		[MethodImpl( MethodImplOptions.AggressiveInlining )]
 		public static int SizeOf<T>()
 		{
-			throw new NotImplementedException();
+			return System.Runtime.InteropServices.Marshal.SizeOf(typeof( T ));
 		}
 
 		public static unsafe void* Write<T>( void* pDest, ref T data ) where T : struct
diff --git a/math/fn.cs b/math/fn.cs
index c895e2f..7d587ec 100644
--- a/math/fn.cs
+++ b/math/fn.cs
@@ -32,6 +32,45 @@ namespace math
 
 	static public class fn
 	{
+
+		static public float Clamp( float v, float min, float max )
+		{
+			return v < min ? min : v > max ? max : v;
+		}
+
+		//Tracked these down in Desmos
+		static public float s_a =   0.0f;
+		static public float s_b =   0.155f;
+		static public float s_c =   1.03f;
+		static public float s_d =   6.13f;
+		static public float s_f = -10.2f;
+		static public float s_g =   4.06f;
+
+		static public float Quintic( float v )
+		{
+			var vv   = v * v;
+			var vvv  = vv * v;
+			var vvvv = vvv * v;
+			var vvvvv= vvvv * v;
+
+			var res = s_a + s_b*v + s_c*vv + s_d*vvv + s_f*vvvv + s_g * vvvvv;
+
+			return res;
+		}
+
+		static public float s_p =  0.37f;
+		static public float s_o =  0.15f;
+		static public float s_m =  2.11f;
+		static public float s_n = -0.57f;
+
+		static public float PerlinToContinent( float h )
+		{
+			var res = Quintic( s_m * h + s_n ) * s_o + s_p;
+
+			return res;
+		}
+
+
 		static public float SmoothStepCos( float v )
 		{
 			var dV = (double)v;
diff --git a/scr/Script.cs b/scr/Script.cs
index 1412b03..cf8ec5f 100644
--- a/scr/Script.cs
+++ b/scr/Script.cs
@@ -196,8 +196,6 @@ public static class scr
 	{
 		var fullpath = Path.GetFullPath( filename );
 
-		//string text = System.IO.File.ReadAllText( fullpath );
-
 		var stream = File.OpenRead( fullpath );
 
 		var sourceText = SourceText.From( stream );
@@ -221,8 +219,6 @@ public static class scr
 
 		SyntaxTree syntaxTree = CSharpSyntaxTree.ParseText( sourceText, options, uniquePath );
 
-		//SyntaxTree syntaxTree = CSharpSyntaxTree.ParseText(sourceText, options, uniquePath, encoding: System.Text.Encoding.UTF8);
-
 		var memRef = new MemoryRefResolver();
 
 
@@ -266,13 +262,14 @@ public static class scr
 	{
 		var memRef = new MemoryRefResolver();
 
+		// @@@@ TODO :: Config release / debug
 		CSharpCompilation compilation = CSharpCompilation.Create(
 				assemblyName,
 				syntaxTrees: syntaxTrees,
 				references: RefCache.References,
 				options: new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary,
 						sourceReferenceResolver: memRef,
-						optimizationLevel: OptimizationLevel.Debug,
+						optimizationLevel: OptimizationLevel.Release,
 						platform: platform,
 						specificDiagnosticOptions: new Dictionary<string, ReportDiagnostic>
 						{