Conway's Game of Life on 2-D toroidal grid in Scala & JavaFX.

Download Standalone jar

Usage

Example

java \
--module-path $PATH_TO_FX --add-modules=javafx.graphics \
-jar game-of-life-assembly-x.x.x.jar --b=2

For more details and list of built-in game boards:

java \
--module-path $PATH_TO_FX --add-modules=javafx.graphics \
-jar game-of-life-assembly-x.x.x.jar --help

Requires Java 11 and openjfx 11.0.1.

run the jar with --module-path $PATH_TO_FX --add-modules=javafx.graphics

Generate a standalone jar for java 11

sbt assembly

The jar will be placed in target/scala-x.xx/game-of-life-assembly-x.x.x.jar

Static analysis: I'm using scalafmt, wartremover and scalastyle. The compile task also runs scalafmt & wartremover.

sbt test            # or anything that runs compile
sbt scalastyle
sbt test:scalastyle

Test coverage

sbt clean coverage test
sbt coverageReport

Check for dependency updates

sbt dependencyUpdates

Invocation:

java -jar game-of-life-assembly-x.x.x.jar --m=2 --w=4 --b=8 --t=250 \
    --bg-color=155,155,155 --alive-color=250,180,0 --dead-color=0,120,50

Invocation:

java -jar game-of-life-assembly-x.x.x.jar --m=1 --w=4 --b=5 --t=250 \
    --bg-color=50,0,0 --alive-color=255,180,210 --dead-color=0,50,130

To make the gif animations, I used byzanz:

sudo apt-get install byzanz
byzanz-record --duration=20 --x=0 --y=0 --width=500 --height=300 out.gif

Review new free monad design: compare; worth keeping?
Review file names & content
Review organization
Interpret free monad to Task instead of doing effects directly
Use Task for effects; combine with Task from free monad natural transformation
Use EitherT[Effect, A] to eliminate double either unwrapping in main
terminator should call close on javafx Application before exit (in place of exit?)?
fully test main; (scoverage: 2 error cases untested)
Hows about a time based test that ensures the stepper and animator render the first frame and subsequest frame correctly?
Consider using 2 mutable grids Array[Array[Cell]] dimOf and a aliveCount Array[Array[Int]]
- one grid is put in AtomicRef for rending and the other is used to to compute the next grid
- each frame, they swap
- First, test performance diff; then implement if worth it
try scalamock; switch to scalamock if you like it