Create ColorUtility.cs

Author: RimuruDev

ColorUtility.cs

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+// **************************************************************** //
+//
+//   Copyright (c) RimuruDev. All rights reserved.
+//   Contact me: 
+//          - Gmail:    rimuru.dev@gmail.com
+//          - GitHub:   https://github.com/RimuruDev
+//          - LinkedIn: https://www.linkedin.com/in/rimuru/
+//          - GitHub Organizations: https://github.com/Rimuru-Dev
+//
+// **************************************************************** //
+
+using System;
+using UnityEngine;
+
+namespace External.RimuruDevUtils.Helpers.Colors
+{
+    /// <summary>
+    /// Provides utility methods for working with colors in Unity.
+    /// This class handles conversion from hexadecimal color strings to Unity's Color objects.
+    /// </summary>
+    public static class ColorUtility
+    {
+        private const byte AlphaFull = 255;
+        private const int HexadecimalMaxLength = 6;
+        private const int DecimalNumberBase = 16;
+
+        /// <summary>
+        /// Converts a hexadecimal color string to a Color object.
+        /// </summary>
+        /// <param name="hex">Hexadecimal string representing the color in RRGGBB format.</param>
+        /// <returns>A Color object corresponding to the hexadecimal input. Returns white color if format is incorrect.</returns>
+        /// <example>
+        /// <code>
+        /// Color myColor = ColorUtility.HexToColor("FF5733");
+        /// </code>
+        /// </example>
+        public static Color HexToColor(string hex)
+        {
+            if (string.IsNullOrWhiteSpace(hex) || IsIncorrectFormat(hex))
+            {
+                Debug.LogWarning("Invalid or empty hexadecimal string. Returning white color.");
+                return Color.white;
+            }
+
+            try
+            {
+                var red = Convert.ToInt32(hex.Substring(0, 2), DecimalNumberBase);
+                var green = Convert.ToInt32(hex.Substring(2, 2), DecimalNumberBase);
+                var blue = Convert.ToInt32(hex.Substring(4, 2), DecimalNumberBase);
+
+                return new Color32((byte)red, (byte)green, (byte)blue, AlphaFull);
+            }
+            catch (Exception ex)
+            {
+                Debug.LogError($"Error converting hex to color: {ex.Message}");
+                return Color.white;
+            }
+        }
+
+        /// <summary>
+        /// Checks if the provided hexadecimal string has an incorrect format.
+        /// </summary>
+        /// <param name="hex">Hexadecimal string to check.</param>
+        /// <returns>True if the format is incorrect, otherwise false.</returns>
+        private static bool IsIncorrectFormat(string hex)
+        {
+            return hex.Length != HexadecimalMaxLength;
+        }
+    }
+}