当前关卡优化

@@ -255,9 +255,12 @@ class Game extends Api
 
     // 获取可以进入的关卡
     private function getCurrentBarrierSn(){
+        // 该进行下一关
         $barrier_sn = GameBarrierRank::where('user_id',$this->auth->id)->max('barrier_sn');
         $current_barrier = GameBarrier::where('barrier_sn','>',$barrier_sn)->order('barrier_sn')->field('barrier_sn')->find();
-        return $current_barrier ? $current_barrier['barrier_sn'] : $barrier_sn;
+        // 最大关
+        $max_barrier_sn = GameBarrier::max('barrier_sn');
+        return $current_barrier ? $current_barrier['barrier_sn'] : ($barrier_sn > $max_barrier_sn ? $max_barrier_sn : $barrier_sn);
     }
 
     /**