From 5ee0f2b1f4995697ea6ada5ee75b5d84680df6a1 Mon Sep 17 00:00:00 2001
From: zhenhui <1276357500@qq.com>
Date: Thu, 16 Apr 2026 17:42:28 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BC=98=E5=8C=96=E5=BC=80=E5=A5=96=E5=8F=B7?=
 =?UTF-8?q?=E7=A0=81=E9=9A=8F=E6=9C=BA=E6=80=A7?=
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---
 app/common/service/GameLiveService.php | 28 ++++++++++++++++++++++++--
 1 file changed, 26 insertions(+), 2 deletions(-)

diff --git a/app/common/service/GameLiveService.php b/app/common/service/GameLiveService.php
index 4abcca4..7f135e0 100644
--- a/app/common/service/GameLiveService.php
+++ b/app/common/service/GameLiveService.php
@@ -55,6 +55,7 @@ final class GameLiveService
         $candidates = [];
         $bestNumber = null;
         $bestLoss = null;
+        $bestNumbers = [];
         $status = (int) $record['status'];
         $canCalculate = $elapsed >= $betSeconds && ($status === 0 || $status === 1);
         if ($canCalculate) {
@@ -66,9 +67,14 @@ final class GameLiveService
                 ];
                 if ($bestLoss === null || bccomp((string) $loss, (string) $bestLoss, 4) < 0) {
                     $bestLoss = $loss;
-                    $bestNumber = $n;
+                    $bestNumbers = [$n];
+                    continue;
+                }
+                if (bccomp((string) $loss, (string) $bestLoss, 4) === 0) {
+                    $bestNumbers[] = $n;
                 }
             }
+            $bestNumber = self::pickRandomNumber($bestNumbers);
         }
 
         return [
@@ -131,14 +137,20 @@ final class GameLiveService
         $candidates = [];
         $bestNumber = null;
         $bestLoss = null;
+        $bestNumbers = [];
         for ($n = 1; $n <= $pickMax; $n++) {
             $loss = self::estimateLossForNumber($bets, $n);
             $candidates[] = ['number' => $n, 'estimated_loss' => $loss];
             if ($bestLoss === null || bccomp((string) $loss, (string) $bestLoss, 4) < 0) {
                 $bestLoss = $loss;
-                $bestNumber = $n;
+                $bestNumbers = [$n];
+                continue;
+            }
+            if (bccomp((string) $loss, (string) $bestLoss, 4) === 0) {
+                $bestNumbers[] = $n;
             }
         }
+        $bestNumber = self::pickRandomNumber($bestNumbers);
 
         $finalNumber = $manualNumber ?? $bestNumber;
         $finalLoss = '0.0000';
@@ -291,4 +303,16 @@ final class GameLiveService
         }
         return $payout;
     }
+
+    private static function pickRandomNumber(array $numbers): ?int
+    {
+        if ($numbers === []) {
+            return null;
+        }
+        if (count($numbers) === 1) {
+            return $numbers[0];
+        }
+        $index = random_int(0, count($numbers) - 1);
+        return $numbers[$index];
+    }
 }