ece651-spr20-RISC

Android game in Java

grade: 97/100

prelude

Thanks to my teammate Kewei & Chendga. It is a great journey.

I am responsible for persisting data & recovering.

We use IntelliJ IDEA for editing & debugging

It is much better than Emacs

video demo for evo.2

evo.2

preview

login

room view

add room

choose territory

play

action

UML

link

evo.2

code structure

3 parts:

frontend

RiscClient/app/src/main/java/edu/duke/ece651/riskclient

backend

server/src/main/java/edu/duke/ece651/risk/server

shared/src/main/java/edu/duke/ece651/risk/shared

suggestions

persist & recover

I use Postgres to store the User name & password

I use MongoDB for storing gaming data, because the data is more like document.

I use Morphia for ODM, and use annotation to store the data.

db config:

server/src/main/java/edu/duke/ece651/risk/server/Mongo.java

save & recover

server/src/main/java/edu/duke/ece651/risk/server/Room.java

save in Room.java mainGame

Mongo m = new Mongo();
m.morCon().save(this);

recover in Room.java recover

Threading strategy

Server has thread pool to handle the incoming request.

Each room has 1 main thread, and each player thread has its own player thread & its own chat thread.

synchronization

We use barrier to make sure all info for all thread are up to date

Print out the info can help, but I think setting break point is much better

run game

My vm may stop working at this moment, and you need to config the MongoDB & Postgres to make it works.

client

in

RiscClient/app/src/main/java/edu/duke/ece651/riskclient/Constant.java

//local ip for debug, change it to where you run the server
public static final String HOST = "192.168.0.132"; 
public static final int PORT = 12345;

change the host