add new websocket topic - userList - and handle it

src/Mine/SeekerBundle/Topic/MineseekerTopic.php

@@ -63,7 +63,8 @@ class MineseekerTopic implements TopicInterface
                 'channel' => $topic->getId(),
                 'user' => $userName,
                 'userCnt' => $topic->count(),
-                'users' => $users
+                'users' => $users,
+                'steps' => $this->getSteps($topic),
             ]);
         }
     }
@@ -180,6 +181,28 @@ class MineseekerTopic implements TopicInterface
         $this->em->flush();
     }
 
+    private function getSteps($topic)
+    {
+        $this->reConnect();
+        $gameAssoc = explode('/', $topic->getId())[2];
+
+        $playedGame = $this->em
+            ->getRepository('MineSeekerBundle:PlayedGame')
+            ->findOneByGameAssoc($gameAssoc);
+
+        $steps = array();
+
+        foreach ($playedGame->getStep()->toArray() as $item) {
+            $steps[] = array(
+                'row' => $item->getRow(),
+                'col' => $item->getCol(),
+                'wBomb' => $item->getWBomb(),
+            );
+        }
+
+        return base64_encode(json_encode($steps));
+    }
+
     /**
      * Control all users in a channel
      *
@@ -300,7 +323,7 @@ class MineseekerTopic implements TopicInterface
                 $connection->close();
                 $connection->connect();
             }
-        } catch(PDOException $ex) {
+        } catch (PDOException $ex) {
             throw PDOException::class;
         }
     }