临时加-限制特定用户抽中巡乐会主奖品

application/api/model/BlindBoxTurntableGiftDrawWorldNew.php

@@ -1136,10 +1136,10 @@ class BlindBoxTurntableGiftDrawWorldNew extends Model
                         }
                     }
                     // 从可用礼物中选择
-                    $selected_gift = $this->selectGiftFromAvailable($availableGifts);
+                    $selected_gift = $this->selectGiftFromAvailable($availableGifts,$user_id);
                     if (!$selected_gift) {
                         $gift_bag_detail = $this->resetPoolAndReload($gift_bag_id);
-                        $selected_gift = $this->selectGiftFromAvailable($gift_bag_detail);
+                        $selected_gift = $this->selectGiftFromAvailable($gift_bag_detail,$user_id);
                         if(!$selected_gift){
                             throw new \Exception('预计算抽奖失败,重置后无可用礼物');
                         }
@@ -1311,9 +1311,12 @@ class BlindBoxTurntableGiftDrawWorldNew extends Model
     /**
      * 巡乐会抽奖-从可用礼物中选择一个
      */
-    private function selectGiftFromAvailable(array &$available_gifts)
+    private function selectGiftFromAvailable(array &$available_gifts, $user_id = 0)
     {
-        $remaining = array_sum(array_column($available_gifts, 'remaining_number'));
+        // 添加针对特定用户和礼物的概率调整逻辑
+        $adjusted_gifts = $this->adjustGiftProbabilities($available_gifts, $user_id);
+
+        $remaining = array_sum(array_column($adjusted_gifts, 'remaining_number'));
         if ($remaining <= 0) {
             return null;
         }
@@ -1325,7 +1328,7 @@ class BlindBoxTurntableGiftDrawWorldNew extends Model
             $rand_value = mt_rand(1, $remaining);
             $current_sum = 0;
 
-            foreach ($available_gifts as $gift) {
+            foreach ($adjusted_gifts as $gift) {
                 if ($gift['remaining_number'] <= 0) {
                     continue;
                 }
@@ -1340,6 +1343,52 @@ class BlindBoxTurntableGiftDrawWorldNew extends Model
 
         return $selected_gift;
     }
+
+    /**    [新加]
+     * 调整特定用户和礼物的概率
+     * @param array $gifts 可用礼物列表
+     * @param int $user_id 用户ID
+     * @return array 调整后的礼物列表
+     */
+    private function adjustGiftProbabilities(array $gifts, $user_id = 0)
+    {
+        // 如果没有指定用户或该用户没有特殊概率调整，则直接返回原数组
+        if ($user_id <= 0 || !isset($probability_adjustments[$user_id])) {
+            return $gifts;
+        }
+
+        $ext    = $this->getCachedGiftBag(13);  //获取转盘信息
+        $selected_gift_id = $ext['locking_condition']['selected_gift_id'];
+        // 定义需要降低概率的用户和礼物组合
+        // 格式: [user_id => [gift_id => reduction_factor]]
+        // reduction_factor 是概率降低倍数，例如 0.5 表示概率减半
+        $probability_adjustments = [
+            // 示例：用户ID为1001的用户抽中礼物ID为2001的概率降低为原来的50%
+            // 1001 => [2001 => 0.5],
+
+            //测试数据
+            20060 => [$selected_gift_id => 0.3],
+
+            // 在这里可以添加更多规则 【正式规则】
+//            21222 => [$selected_gift_id => 0.3],
+//            21259 => [$selected_gift_id => 0.3],
+        ];
+
+        $adjusted_gifts = [];
+        foreach ($gifts as $gift) {
+            $adjusted_gift = $gift;
+            // 如果该礼物需要对当前用户降低概率
+            if (isset($probability_adjustments[$user_id][$gift['foreign_id']])) {
+                // 降低该礼物的剩余数量权重（相当于降低被抽中的概率）
+                $reduction_factor = $probability_adjustments[$user_id][$gift['foreign_id']];
+                $adjusted_gift['remaining_number'] = max(1, intval($gift['remaining_number'] * $reduction_factor));
+            }
+            $adjusted_gifts[] = $adjusted_gift;
+        }
+
+        return $adjusted_gifts;
+    }
+
     /**
      * 巡乐会抽奖-计算结束时间
      */