Osztott Rendszerek

ELTE-IK 2018-19/2

Requirements

• Java 11

BattleShips

Now With Exclusive Battle Royale Mode!

Running through gradle

Start up a server

./gradlew :battleships:run --args="server"
# Or for real time mode:
./gradlew :battleships:run --args="server --mode=ROYLE"

Then start some clients to join. This will start a swing terminal client even when ran from a terminal

./gradlew :battleships:run --args="client"

If you use the built jar, it will start normally in a terminal

./gradlew :battleships:build
cd battleships/build/libs
java -jar ./battleships-1.1.1.jar client

Check other options:

./gradlew :battleships:run # --args="help" # <- defaults to help
./gradlew :battleships:run --args="client help"
./gradlew :battleships:run --args="server help"

Using the built jar

java -jar battleships-1.0.0.jar

If you want to run the client on Windows use javaw instead of java! (Or use WSL)

(Lanterna can't use CMD or PS to display)

javaw -jar battleships-1.0.0.jar client

For everything else like reading the help prompts or running the server using java is fine

java -jar battleships-1.0.0.jar client -h

Download!

_{The screenshot was made with the cool-retro-term}

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Lesson 1 - resuscitation

#	Task	Test
1	Hello World	Test
2	Arguments	Test
3	Fibonacci	Test
4	Fibonacci Trace	Test
5	Reverse Polish Notation	Test

Lesson 2 - file handling, scanner, battleships

#	Task	Test
1	Read	Test
2	Print	Test
3	Ships	Test

Shared model
Table
Ship
Coord
Direction

Lesson 3 - Basic server-client connection

#	Task
1	Continuous file write from standard input
2	BasicBattleShips from standard input
3	Basic Server/Client example
4	Basic BattleShips Server and Client

Shared model
Admiral
Table
Ship
Coord
Shot
Direction

Lesson 4 - BattleShips over network

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Build

./gradlew clean build

Test

./gradlew clean test

Run as application

./gradlew run

If for some reason VS Code throws an error upon running a debug session that it can't build the workspace, but the project can be built by hand, try cleaning it with Ctrl+Shift+P >Java: Clean the Java language server workspace

Throubleshoot

If the application looks blurry and you're using different scaling settings on windows other than 100%, try setting the Right-Click->Properties->Compatibility Tab's "Override the high DPI scaling behavior" to "System" on the java.exe/javaw.exe you're using. (Or use a WSL Shell)

Technologies

Java 11

Oracle JDK

RXJava

Reactive components for concurrent solutions

Lanterna

Text GUI library

Picocli

Command line interface

Gradle

Build tool

JUnit 5

Unit testing framework

JaCoCo

Code coverage tool

Recommendations

Visual Studio Code

IDE for everything. Settings

IntelliJ IDEA

IDE for java.

Fira Code

Font with ligatures

Services

Travis

Continuous Integration solution

Codacy

Code Quality monitoring

Code Climate

Maintainability and Coverage reports

Snyk

Vulnerability detection

Libraries.io

Dependency watcher

Shields.io

Badges to look cool