CodinCame Winter Challenge 2024 Cellularena CLI runner

This is a referee for CodinGame's Winter Challenge 2024 with command line interface adapted for usage with cg-brutaltester

https://www.codingame.com/contests/winter-challenge-2024

Build

• install Java 17 and Maven
• run in command line mvn package in the root dir where pom.xml file is

The compiled jar file is in ./target/winter-2024-sprawl-1.0-SNAPSHOT.jar

Run

Build cg-brutaltester as described in its readme-file (cg-brutaltester)

To copy both referee and cg-brutaltester JAR files, i.e. winter-2024-sprawl-1.0-SNAPSHOT.jar and cg-brutaltester-1.0.0-SNAPSHOT.jar to same directory make handling paths easier.

This is a sample command that works, you can change optptions as described in the BrutalTester readme-file.

java -jar cg-brutaltester-1.0.0-SNAPSHOT.jar \
    -r "java --add-opens java.base/java.lang=ALL-UNNAMED -jar -Dleague.level=5 winter-2024-sprawl-1.0-SNAPSHOT.jar" \
    -p1 "python3 player_a.py" \
    -p2 "python3 player_b.py" \
    -s     \
    -t 4   \
    -n 10

Option -Dleague.level=5 above defines League-5 that is valid for Bronze and higher leagues.

To make it easier to set up the environment, I put two bots in the "sample_bots" directory. Bot B is exactly the placeholder code that Codingame IDE generates for python, it just reads the input and prints "WAIT". Bot A is a small modification, it grows basic cells in the first best empty square. Both bots can play in the bronze league, although weakly, and bot A consistently wins against bot B. You can use them to test your Brutaltester setup. The command above shall work.

Psyleague notes

For convenience, a working sample of play_game.py file is in psyleague_info folder.

Default configuration created with psyleague config is for C++, change cmd_bot_setup, cmd_play_game for your language, e.g. for Python:

cmd_bot_setup = ""
cmd_play_game = "python play_game.py 'python %DIR%/%P1%' 'python %DIR%/%P2%'"

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