盲盒加上次抽中礼物加权

application/adminapi/controller/Level.php

@@ -125,28 +125,28 @@ class Level extends adminApi
         if($id == ''){
             return V(0,"参数错误");
         }
-        if($level){
+        if($level!=''){
             $level_data['level'] = $level;
         }
-        if($name){
+        if($name!=''){
             $level_data['name'] = $name;
         }
-        if($image){
+        if($image!=''){
             $level_data['image'] = $image;
         }
-        if($status){
+        if($status!=''){
             $level_data['status'] = $status;
         }
-        if($change_value){
+        if($change_value!=''){
             $level_data['change_value'] = $change_value;
         }
-        if($coins){
+        if($coins!=''){
             $level_data['coins'] = $coins;
         }
-        if($bg_image){
+        if($bg_image!=''){
             $level_data['bg_image'] = $bg_image;
         }
-        if($color){
+        if($color!=''){
             $level_data['color'] = $color;
         }
         $level_data['updatetime'] = time();

application/api/model/GiveGift.php

@@ -140,7 +140,9 @@ class GiveGift extends Model
             $gift_box1 = [];
             $gift_box = [];
             //查询礼物是否是盲盒
-            if($gift_info['label'] == 2){//趣味礼物（盲盒）
+            $gift_info_label = Db::name('vs_gift')->where(['gid'=>$gid])
+                ->field('label')->find();
+            if($gift_info_label['label'] == 2){//趣味礼物（盲盒）
                 $gift_price_box = 0;
                 if(isset($ext['is_draw_gift']) && $ext['is_draw_gift'] == 1){
                     //收礼记录行为日志
@@ -1409,15 +1411,29 @@ class GiveGift extends Model
             if (empty($gift_bag_details)) {
                 return ['code' => 0, 'msg' => '当前盲盒无可用礼物', 'data' => []];
             }
+            //上一次抽取的礼物
+            $last_receive_log = db::name("vs_gift_bag_receive_log")->where(['gift_bag_id'=>$gift_bag_id,'user_id'=>$user_id])->order('id desc')->find();
+            $last_receive_gift_id = $last_receive_log ? $last_receive_log['gift_id'] : 0;
             // 实现加权随机算法：剩余数量越多，被抽中的概率越大
             $total_remaining = 0;
+            $weight_reduction = 0; // 可以根据需求调整权重降低幅度，例如设置为上次礼物剩余数量的一半
             foreach ($gift_bag_details as $gift) {
+                if ($gift['foreign_id'] == $last_receive_gift_id) {
+                    // 对上次抽中的礼物降低权重，例如减少其剩余数量的一半作为惩罚因子
+                    $reduced_remaining = max(1, floor($gift['remaining_number'] / 2));
+                    $total_remaining += $reduced_remaining;
+                } else {
                     $total_remaining += $gift['remaining_number'];
                 }
+            }
             $rand_value = mt_rand(1, $total_remaining);
             $current_sum = 0;
             $gift_bag_detail = null;
             foreach ($gift_bag_details as $gift) {
+                // 如果是上次抽中的礼物，则使用调整后的剩余数量
+                if ($gift['foreign_id'] == $last_receive_gift_id) {
+                    $gift['remaining_number'] = max(1, floor($gift['remaining_number'] / 2));
+                }
                 if($gift['remaining_number'] <= 0){
                     continue;
                 }