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Attempt to generalize castle side

pull/1/merge
Thibault Duplessis 2012-02-25 15:39:46 +01:00
parent 2f18632705
commit b6b3654edb
1 changed files with 7 additions and 4 deletions
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11
src/main/scala/model/Actor.scala
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@ -41,21 +41,24 @@ case class Actor(piece: Piece, pos: Pos, board: Board) {
}
private def castle: Implications = {
val kingSide: Option[Implication] = for {
def side(trans: Direction, compare: (Int, Int) ⇒ Boolean): Option[Implication] = for {
kingPos ← board kingPosOf color
if board.history canCastleKingSide color
rook = color.rook
rookPos ← board actorsOf color collectFirst {
case a if (a is rook) && (a.pos.x > kingPos.x) ⇒ a.pos
case a if (a is rook) && compare(a.pos.x, kingPos.x) ⇒ a.pos
}
newKingPos ← kingPos > 2
newKingPos ← trans(kingPos)
newRookPos ← newKingPos.left
b1 ← board take rookPos
b2 ← b1.move(kingPos, newKingPos)
b3 ← b2.place(rook, newRookPos)
} yield (newKingPos, b3)
kingSide toMap
List(
side(p ⇒ p > 2, (x, y) ⇒ x > y),
side(p ⇒ p < 2, (x, y) ⇒ x < y)
).flatten toMap
}
private def shortRange(dirs: Directions): Implications = {