chore: codestyle

Author: vincentfrochot

src/main/scala/abalone/Board.scala

@@ -20,10 +20,7 @@ case class Board(
 
   def piecesOf(player: Player): PieceMap = pieces.filter(_._2.is(player))
 
-  def isEmptySquare(pos: Option[Pos]): Boolean = pos match {
-      case Some(pos) => !this.pieces.contains(pos)
-      case None => false
-    }
+  def isEmptySquare(pos: Option[Pos]): Boolean = pos.fold(false)(!this.pieces.contains(_))
 
   def withHistory(h: History): Board       = copy(history = h)
   def updateHistory(f: History => History) = copy(history = f(history))

src/main/scala/abalone/Pos.scala

@@ -195,7 +195,7 @@ case class Pos private (index: Int) extends AnyVal {
 
   // NOTE - *neighbourhood
   // these below only work for neighbour pos but that's probably fine as in Abalone we only move to (potentially extended) neighbourhood
-  def dir(dir: Option[String]): Option[Pos]  = {
+  def dir(dir: Option[String]): Option[Pos]  =
     dir match {
       case Some("left") => this.left
       case Some("downLeft") => this.downLeft
@@ -205,8 +205,8 @@ case class Pos private (index: Int) extends AnyVal {
       case Some("upRight") => this.upRight
       case _ => None
     }
-  }
-  def dir(pos: Pos): Option[String] = {
+
+  def dir(pos: Pos): Option[String] =
     (pos.file.index - this.file.index, pos.rank.index - this.rank.index) match {
       case (0, 1) => Some("upLeft")
       case (0, -1) => Some("downRight")
@@ -216,10 +216,8 @@ case class Pos private (index: Int) extends AnyVal {
       case (-1, -1) => Some("downLeft")
       case _ => None
     }
-  }
-  def isInLine(pos1: Pos, pos2: Pos): Boolean = {
-    this.dir(pos1) == pos1.dir(pos2)
-  }
+
+  def isInLine(pos1: Pos, pos2: Pos): Boolean = this.dir(pos1) == pos1.dir(pos2)
   // *end of note about neighbourhood
 
   @inline def file = File of this // column (as if it was an index in a 1D array)