39 lines
1016 B
Scala
39 lines
1016 B
Scala
package lila.game
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// events are kept in insertion/addition order
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case class Progress(origin: Game, game: Game, events: List[Event] = Nil) {
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def map(f: Game => Game) = copy(game = f(game))
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def flatMap(f: Game => Progress) =
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f(game) match {
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case Progress(_, g2, e2) => copy(game = g2, events = events ::: e2)
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}
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def >>(next: => Progress): Progress = flatMap(_ => next)
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def +(event: Event) = copy(events = events :+ event)
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def ++(es: List[Event]) = copy(events = events ::: es)
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def withGame(g: Game) = copy(game = g)
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def statusChanged = origin.status != game.status
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def dropEvents = copy(events = Nil)
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override def toString = s"Progress ${game.id}: ${origin.turns} -> ${game.turns} ${game.status}"
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}
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object Progress {
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def apply(game: Game): Progress =
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new Progress(game, game)
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def apply(game: Game, events: List[Event]): Progress =
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new Progress(game, game, events)
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def apply(game: Game, events: Event): Progress =
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new Progress(game, game, events :: Nil)
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}
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