forked from Shardstone/trail-into-darkness
64 lines
2.1 KiB
C#
64 lines
2.1 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using UnityEngine;
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namespace Jovian.InspectorTools {
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public static class MyCollections {
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/// <summary>
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/// Returns new array with inserted empty element at index
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/// </summary>
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public static T[] InsertAt<T>(this T[] array, int index) {
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if(index < 0) {
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Debug.LogError("Index is less than zero. Array is not modified");
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return array;
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}
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if(index > array.Length) {
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Debug.LogError("Index exceeds array length. Array is not modified");
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return array;
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}
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T[] newArray = new T[array.Length + 1];
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int index1 = 0;
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for(int index2 = 0; index2 < newArray.Length; ++index2) {
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if(index2 == index) continue;
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newArray[index2] = array[index1];
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++index1;
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}
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return newArray;
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}
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#region IsNullOrEmpty and NotNullOrEmpty
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/// <summary>
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/// Is array null or empty
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/// </summary>
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public static bool IsNullOrEmpty<T>(this T[] collection) => collection == null || collection.Length == 0;
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/// <summary>
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/// Is list null or empty
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/// </summary>
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public static bool IsNullOrEmpty<T>(this IList<T> collection) => collection == null || collection.Count == 0;
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/// <summary>
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/// Is collection null or empty. IEnumerable is relatively slow. Use Array or List implementation if possible
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/// </summary>
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public static bool IsNullOrEmpty<T>(this IEnumerable<T> collection) => collection == null || !collection.Any();
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public static bool NotNullOrEmpty<T>(this IEnumerable<T> collection) => !collection.IsNullOrEmpty();
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#endregion
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/// <summary>
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/// Performs a function on each element of a collection.
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/// </summary>
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public static IEnumerable<T> ForEach<T, R>(this IEnumerable<T> source, Func<T, R> func) {
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foreach(T element in source) func(element);
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return source;
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}
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}
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} |