Chess.Game

Types and functions to create, manipulate and query chess game states.

Representing Games

data Game

Represents a chess game state.

Constructors

Game

Fields

• board :: Board

  The state of the chess board.

• activePlayer :: Player

  The player who is currently playing.

• passivePlayer :: Player

  The player who is currently waiting.

• lastUpdate :: Maybe Update

  The last update which led to this game state.

data Update

Represents an update of a chess game state.

Constructors

Update

Fields

• game :: Game

  Represents the chess game state before or after executing the corresponding command, depending on the context.

• command :: Command

  Represents the command that is involved in the game state update.

Manipulating Games

execute :: Command -> Game -> Either ChessException Game

Executes a command on a game state in order to obtain a new game state.

Querying Games

history :: Game -> [Update]

Gets the history of updates that led to the specified game state. The most recent update is at the head of the list.

spawnCommands :: Game -> [Command]

Gets a list of Spawn commands which can be used to reconstruct the board of the specified game state.

Re-exports

module Chess.Game.Command

module Chess.Game.Status