修改非空断言可能会导致的崩溃错误

RoomManager.js

@@ -33,8 +33,9 @@ class Room {
     generatePairings() {
         let tempPlayers = new Map;
         for (const key of this.mPlayers.keys()) {
-            if (this.mPlayers.get(key).mHp > 0) {
-                tempPlayers.set(key, this.mPlayers.get(key));
+            const player = this.mPlayers.get(key);
+            if (player && player.mHp > 0) {
+                tempPlayers.set(key, player);
             }
         }
         this.mMatchMaker.updatePlayers(tempPlayers);
@@ -100,15 +101,20 @@ class RoomManager {
         return this.mInstance;
     }
     join(aRoomID, aName, aSocket) {
-        if (!this.mRooms.has(aRoomID)) {
+        const room = this.mRooms.get(aRoomID);
+        if (!room) {
             return [false, "No room Id", null, null];
         }
-        let room = this.mRooms.get(aRoomID);
         if (room.mPlayers.has(aName)) {
             let player = room.mPlayers.get(aName);
-            player.setPlayerSocketId(aSocket.id);
-            aSocket.join(aRoomID);
-            return [true, "", room.mStatus, player];
+            if (player) {
+                player.setPlayerSocketId(aSocket.id);
+                aSocket.join(aRoomID);
+                return [true, "", room.mStatus, player];
+            }
+            else {
+                return [false, "unKnow error", null, null];
+            }
         }
         if (room.mPlayers.size < GameDefine_1.ALL_PLAYER_NUM) {
             let player = new Player_1.Player(aName, aSocket.id);