changed directory structure

2026-04-02 07:22:33 +02:00
parent 101a7ae81a
commit 81b8eadaf1
323 changed files with 5 additions and 5 deletions
--- a/Packages/com.jovian.utilities/Runtime/CollectionUtility.cs
+++ b/Packages/com.jovian.utilities/Runtime/CollectionUtility.cs
@@ -0,0 +1,99 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Random = UnityEngine.Random;
+
+namespace Jovian.Utilities.Utilities {
+    public static class CollectionUtility {
+        public static T RandomElementFromCollection<T>(this ICollection<T> enumerableObject) {
+            int count = enumerableObject.Count;
+            if (count == 0) {
+                throw new IndexOutOfRangeException("Cannot get RandomElement, collection size is 0.");
+            }
+
+            int index = Random.Range(0, count);
+            return enumerableObject.ElementAt(index);
+        }
+    }
+}
+
+public static class EnumerableUtility {
+    private static System.Random random;
+
+    public static T RandomElement<T>(this IEnumerable<T> source) {
+        random ??= new System.Random();
+        return source.RandomElement(random);
+    }
+
+    //https://stackoverflow.com/a/648240/584774
+    public static T RandomElement<T>(this IEnumerable<T> source, System.Random rng) {
+        T current = default(T);
+        int count = 0;
+        foreach (T element in source) {
+            count++;
+            if (rng.Next(count) == 0) {
+                current = element;
+            }
+        }
+
+        if (count == 0) {
+            throw new InvalidOperationException("Sequence was empty");
+        }
+
+        return current;
+    }
+
+    public static bool TryGetRandomElement<T>(this IEnumerable<T> source, out T outElement) {
+        random ??= new System.Random();
+        return source.TryGetRandomElement(random, out outElement);
+    }
+
+    public static bool TryGetRandomElement<T>(this IEnumerable<T> source, System.Random rng, out T outElement) {
+        T current = default(T);
+        int count = 0;
+        foreach (T element in source) {
+            count++;
+            if (rng.Next(count) == 0) {
+                current = element;
+            }
+        }
+
+        outElement = current;
+        if (count == 0) {
+            return false;
+        }
+
+        return true;
+    }
+    
+    public static string EnumerableToString(this IEnumerable enumerable, bool newLinePerEntry = false) {
+        if (enumerable == null) {
+            return "<NULL>";
+        }
+
+        StringBuilder sb = new();
+        sb.Append("{");
+        if (newLinePerEntry) {
+            sb.AppendLine();
+        }
+
+        foreach (object item in enumerable) {
+            sb.Append(item);
+            if (newLinePerEntry) {
+                sb.AppendLine(",");
+            }
+            else {
+                sb.Append(", ");
+            }
+        }
+
+        if (newLinePerEntry) {
+            sb.AppendLine();
+        }
+
+        sb.Append("}");
+        return sb.ToString();
+    }
+}