AGD-1875 As a user I need a node that generates a list of random numb…

…ers where the seed value can be set (#11322) * Add random nodes wtih seed values * Add icons for new nodes * rename existing icon resources * Update descriptions * Add image files * Fix timing bug with shuffle * Update method descriptions * Update test resources * Use normal way to set default values Co-authored-by: Craig Long <[email protected]>
DynamoDS · Dec 7, 2020 · 6ca1e8d · 6ca1e8d
1 parent 347d57f
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Showing 14 changed files with 178 additions and 7 deletions.
diff --git a/src/Libraries/CoreNodes/DSCoreNodesImages.resx b/src/Libraries/CoreNodes/DSCoreNodesImages.resx
@@ -1897,7 +1897,7 @@
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 </value>
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@@ -1912,7 +1912,7 @@
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@@ -3062,7 +3062,7 @@
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 </value>
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@@ -3079,7 +3079,7 @@
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@@ -7586,6 +7586,100 @@
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+    <value>
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+</value>
+  </data>
   <data name="DSCore.List.AnyFalse.Large" type="System.Drawing.Bitmap, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
     <value>
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diff --git a/src/Libraries/CoreNodes/List.cs b/src/Libraries/CoreNodes/List.cs
@@ -1257,7 +1257,20 @@ public static object LastItem(IList list)
         [IsVisibleInDynamoLibrary(true)]
         public static IList Shuffle(IList list)
         {
-            var rng = new Random();
+            return list.Cast<object>().OrderBy(_ => mRandom.Next()).ToList();
+        }
+
+        /// <summary>
+        ///     Shuffles a list, randomizing the order of its items based on an intial seed value.
+        /// </summary>
+        /// <param name="list">List to shuffle.</param>
+        /// <param name="seed">Seed value for the random number generator.</param>
+        /// <returns name="list">Randomized list.</returns>
+        /// <search>random,randomize,shuffle,jitter,randomness,seed</search>
+        [IsVisibleInDynamoLibrary(true)]
+        public static IList Shuffle(IList list, int seed = 1)
+        {
+            var rng = new Random(seed);
             return list.Cast<object>().OrderBy(_ => rng.Next()).ToList();
         }
 
@@ -1355,6 +1368,9 @@ public static IList Flatten(IList list, int amt = -1)
         #endregion
 
         #region private helper methods
+
+        private static readonly Random mRandom = new Random();
+
         /// <summary>
         ///     An alternative to using IList.Contains which uses Enumerable.SequenceEqual to check if
         ///     the item is contained in the list if the item is an array. Returns the index if found, 

diff --git a/src/Libraries/CoreNodes/Math.cs b/src/Libraries/CoreNodes/Math.cs
@@ -41,6 +41,20 @@ public static double Random(double value1, double value2)
             return result;
         }
 
+        /// <summary>
+        ///     Produce a random number in the range [lower_number, higher_number) based on an intial seed value.
+        /// </summary>
+        /// <param name="value1">One end of the range for the random number.</param>
+        /// <param name="value2">One end of the range for the random number.</param>
+        /// <param name="seed">Seed value for the random number generator.</param>
+        /// <returns name="number">Random number in the range [lowValue, highValue).</returns>
+        /// <search>random,numberrange,seed</search>
+        public static double Random(double value1 = 0, double value2 = 1, int seed = 1)
+        {
+            double result = Min(value1, value2) + Abs(value2 - value1) * new Random(seed).NextDouble();
+            return result;
+        }
+
         /// <summary>
         ///     Produces a list containing the given amount of random doubles
         ///     in the range of [0, 1).
@@ -58,6 +72,29 @@ public static IList RandomList(int amount)
             return result;
         }
 
+        /// <summary>
+        ///     Produces a list containing the given amount of random doubles
+        ///     in the deffined range of [0, 1) based on an intial seed value.
+        /// </summary>
+        /// <param name="amount">Amount of random numbers the result list will contain.</param>
+        /// <param name="value1">One end of the range for the random number.</param>
+        /// <param name="value2">One end of the range for the random number.</param>
+        /// <param name="seed">Seed value for the random number generator.</param>
+        /// <returns name="number">List of random numbers in the range.</returns>
+        /// <search>random,listcontains,seed</search>
+        public static IList RandomList(int amount, double value1 = 0, double value2 = 1, int seed = 1)
+        {
+            var result = new ArrayList();
+            var random = new Random(seed);
+
+            foreach (var x in Enumerable.Range(0, amount).Select(_ => random.NextDouble()))
+            {
+                result.Add(Min(value1, value2) + Abs(value2 - value1) * x);
+            }
+
+            return result;
+        }
+
         /// <summary>
         ///     Pi Constant Multiplied by 2
         /// </summary>

diff --git a/src/Resources/DSCoreNodes/LargeIcons/DSCore.List.Shuffle.varN-int.Large.png b/src/Resources/DSCoreNodes/LargeIcons/DSCore.List.Shuffle.varN-int.Large.png
diff --git a/.../LargeIcons/DSCore.List.Shuffle.Large.png → ...eIcons/DSCore.List.Shuffle.varN.Large.png b/.../LargeIcons/DSCore.List.Shuffle.Large.png → ...eIcons/DSCore.List.Shuffle.varN.Large.png
diff --git a/...Resources/DSCoreNodes/LargeIcons/DSCore.Math.Random.double-double-int.Large.png b/...Resources/DSCoreNodes/LargeIcons/DSCore.Math.Random.double-double-int.Large.png
diff --git a/...s/DSCoreNodes/LargeIcons/DSCore.Math.RandomList.int-double-double-int.Large.png b/...s/DSCoreNodes/LargeIcons/DSCore.Math.RandomList.int-double-double-int.Large.png
diff --git a/...rgeIcons/DSCore.Math.RandomList.Large.png → ...cons/DSCore.Math.RandomList.int.Large.png b/...rgeIcons/DSCore.Math.RandomList.Large.png → ...cons/DSCore.Math.RandomList.int.Large.png
diff --git a/src/Resources/DSCoreNodes/SmallIcons/DSCore.List.Shuffle.varN-int.Small.png b/src/Resources/DSCoreNodes/SmallIcons/DSCore.List.Shuffle.varN-int.Small.png
diff --git a/.../SmallIcons/DSCore.List.Shuffle.Small.png → ...lIcons/DSCore.List.Shuffle.varN.Small.png b/.../SmallIcons/DSCore.List.Shuffle.Small.png → ...lIcons/DSCore.List.Shuffle.varN.Small.png
diff --git a/...Resources/DSCoreNodes/SmallIcons/DSCore.Math.Random.double-double-int.Small.png b/...Resources/DSCoreNodes/SmallIcons/DSCore.Math.Random.double-double-int.Small.png
diff --git a/...s/DSCoreNodes/SmallIcons/DSCore.Math.RandomList.int-double-double-int.Small.png b/...s/DSCoreNodes/SmallIcons/DSCore.Math.RandomList.int-double-double-int.Small.png
diff --git a/...allIcons/DSCore.Math.RandomList.Small.png → ...cons/DSCore.Math.RandomList.int.Small.png b/...allIcons/DSCore.Math.RandomList.Small.png → ...cons/DSCore.Math.RandomList.int.Small.png
diff --git a/test/ViewExtensionLibraryTests/resources/libraryItems.json b/test/ViewExtensionLibraryTests/resources/libraryItems.json
@@ -4746,12 +4746,20 @@
     },
     {
       "fullyQualifiedName": "DSCore.List.Shuffle",
-      "iconUrl": "http://localhost/icons/DSCore.List.Shuffle.Small?path=DSCoreNodes.dll",
+      "iconUrl": "http://localhost/icons/DSCore.List.Shuffle.varN.Small?path=DSCoreNodes.dll",
       "contextData": "DSCore.List.Shuffle@var[]..[]",
       "parameters": null,
       "itemType": "action",
       "keywords": "random, randomize, shuffle, jitter, randomness"
     },
+    {
+      "fullyQualifiedName": "DSCore.List.Shuffle",
+      "iconUrl": "http://localhost/icons/DSCore.List.Shuffle.varN-int.Small?path=DSCoreNodes.dll",
+      "contextData": "DSCore.List.Shuffle@var[]..[],int",
+      "parameters": null,
+      "itemType": "action",
+      "keywords": "random, randomize, shuffle, jitter, randomness, seed"
+    },
     {
       "fullyQualifiedName": "DSCore.List.Permutations",
       "iconUrl": "http://localhost/icons/DSCore.List.Permutations.Small?path=DSCoreNodes.dll",
@@ -4808,14 +4816,30 @@
       "itemType": "action",
       "keywords": "random, numberrange"
     },
+    {
+      "fullyQualifiedName": "DSCore.Math.Random",
+      "iconUrl": "http://localhost/icons/DSCore.Math.Random.double-double-int.Small?path=DSCoreNodes.dll",
+      "contextData": "DSCore.Math.Random@double,double,int",
+      "parameters": "(value1, value2, seed)",
+      "itemType": "action",
+      "keywords": "random, numberrange, seed"
+    },
     {
       "fullyQualifiedName": "DSCore.Math.RandomList",
-      "iconUrl": "http://localhost/icons/DSCore.Math.RandomList.Small?path=DSCoreNodes.dll",
+      "iconUrl": "http://localhost/icons/DSCore.Math.RandomList.int.Small?path=DSCoreNodes.dll",
       "contextData": "DSCore.Math.RandomList@int",
       "parameters": null,
       "itemType": "action",
       "keywords": "random, listcontains"
     },
+    {
+      "fullyQualifiedName": "DSCore.Math.RandomList",
+      "iconUrl": "http://localhost/icons/DSCore.Math.RandomList.int-double-double-int.Small?path=DSCoreNodes.dll",
+      "contextData": "DSCore.Math.RandomList@int,double,double,int",
+      "parameters": null,
+      "itemType": "action",
+      "keywords": "random, listcontains, seed"
+    },
     {
       "fullyQualifiedName": "DSCore.Math.PiTimes2",
       "iconUrl": "http://localhost/icons/DSCore.Math.PiTimes2.Small?path=DSCoreNodes.dll",