(client) chore:Clean code

Client/Assets/Scripts/Utils/PerlinNoise.cs

@@ -2,20 +2,18 @@ using System;
 
 namespace Utils
 {
-    public class PerlinNoise : Utils.Singleton<PerlinNoise>
+    public class PerlinNoise : Singleton<PerlinNoise>
     {
-        private int[] _p; // 混淆表
-        private const int DefaultSeed = 0; // 默认种子
+        private readonly int[] _p = new int[512]; // 混淆表
 
         public PerlinNoise()
         {
-            Initialize(DefaultSeed);
+            Initialize();
         }
 
         // 初始化混淆表
-        private void Initialize(int seed)
+        private void Initialize(int seed = 0)
         {
-            _p = new int[512]; // 混淆表加倍以方便使用
             var permutation = new int[256];
             var random = new Random(seed);
 
@@ -26,9 +24,8 @@ namespace Utils
             for (var i = 0; i < 256; i++)
             {
                 var swapIndex = random.Next(256);
-                var temp = permutation[i];
-                permutation[i] = permutation[swapIndex];
-                permutation[swapIndex] = temp;
+
+                (permutation[i], permutation[swapIndex]) = (permutation[swapIndex], permutation[i]);
             }
 
             // 将打乱后的数组复制两次，生成512个元素的混淆表
@@ -86,7 +83,7 @@ namespace Utils
         ///     为给定的(x, y, z)坐标生成3D Perlin噪声。
         ///     输出值通常在-1到1之间。
         /// </summary>
-        public double Noise(double x, double y=0, double z = 0)
+        public double Noise(double x, double y = 0, double z = 0)
         {
             var X = (int)Math.Floor(x) & 255;
             var Y = (int)Math.Floor(y) & 255;