This program will start up a new simple Battleship game on a server, which then multiple clients can join in order to complete the game.
Demonstrate simple Client and Server communication using SocketServer and Socketclasses.
Here a simple protocol is defined which uses protobuf. The client reads in a json file and then creates a protobuf object from it to send it to the server. The server reads it and sends back the calculated result.
The response is also a protobuf but only with a result string.
To see the proto file see: src/main/proto which is the default location for proto files.
Gradle is already setup to compile the proto files.
Request:
- NAME: a name is sent to the server
- name Response: GREETING - message
- LEADER: client wants to get leader board
- no further data Response: LEADER - leader
- NEW: client wants to enter a game
- no further data Response: TASK - image - task
- ANSWER: client sent an answer to a server task
- answer Response: TASK - image - task - eval OR Response: WON - image
- QUIT: clients wants to quit connection
- no further data
Response: BYE
- message
- no further data
Response: BYE
Response ERROR: anytime there is an error you should send the ERROR response and give an appropriate message. Client should act appropriately - message
Server is Java
Per default on 9099
runServer
Clients runs per default on
host localhost, port 9099
Run Java:
runClient
Java
gradle runClient -Pport=9099 -Phost='localhost'
gradle runServer -Pport=9099
- Menu gives user 3 options:
- Leaderboard - Displays scoreboard of current scores of all players
- Play game - Joins a game started on the server
- Quit - Quits the client
- Multiple clients are able to join the same game
- Game will ask user to enter a row and col (In same line, format: ) then return updated board to user with a message if it was a hit
- Game closes gracefully through option 3
- User can exit the client during game play to exit
- Server will not crash when a client unexpectedly disconnects