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JNFrame/Assets/Plugins/JNGame/Util/RandomUtil.cs

@@ -1,31 +1,55 @@
 using System;
+using UnityEngine;
 
 namespace Plugins.JNGame.Util
 {
     public static class RandomUtil
     {
 
-        public static Func<double> SyncRandom(int seed,int start = 1)
+        public static Func<float> SyncRandom(int seed = 1000000,int start = 10)
         {
             
-            for(var i = 0; i < start; i++){
-                seed = (seed * 9301 + 49297) % 233280;
-            }
+            // 线性同余生成器的参数  
+            const int a = 1103515245;  
+            const int m = 2147483647; // 2^31 - 1  
+            const int increment = 16807;  
+  
+            for (var i = 0; i < start; i++)  
+            {  
+                seed = (a * seed + increment) % m;  
+            }  
+  
+            return () =>  
+            {  
+                seed = (a * seed + increment) % m;  
+                var rnd = Math.Abs((float)seed / m); // 转换为0.0到1.0之间的数  
+                return rnd; // 返回随机浮点数  
+            };  
 
-            return () =>
-            {
-                seed = (seed * 9301 + 49297) % 233280;
-                var rnd = seed / 233280.0;
-                return 0 + rnd * (1 - 0);
-            };
+        }
+        
+        public static Func<float,float,float> SyncRandomFloat(int seed = 1000000,int start = 10)
+        {
+            
+            var nRandom = SyncRandom(seed, start);
+            
+            return (float min,float max) =>  
+            {  
+                var random = nRandom();
+                return random * (max - min) + min;
+            };  
 
         }
 
-        public static Func<int,int,int> SyncRandomInt(int seed,int start = 1)
+        public static Func<int,int,int> SyncRandomInt(int seed = 2000000,int start = 10)
         {
+            
             var nRandom = SyncRandom(seed, start);
-
-            return (min, max) => (int)(Math.Round(nRandom() * (max - min)) + min);
+            return (min, max) =>
+            {
+                var random = nRandom();
+                return (int)Math.Round(random * (max - min) + min);
+            };
 
         }