diff options
| -rw-r--r-- | draughts/game.js | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/draughts/game.js b/draughts/game.js index 819a98d..d500c9e 100644 --- a/draughts/game.js +++ b/draughts/game.js @@ -174,7 +174,7 @@ const capturingMoves = (p, captures, board) => { if (p.color == Color.BLUE ? p.position.y == 9 : p.position.y == 0) p.isKing = true - + return acc.concat(capturingMoves(p, c, board)) }, []) } @@ -296,15 +296,28 @@ Game.prototype.legalMoves = function() { /* * Signature: - * () => Nothing + * () => Boolean * * Description: * Initiate the next turn of the game. This is done by swapping the player that the `currentTurn' * attribute is assigned to and sending the `Messages.COMMENCE' message to the player who's turn * has just begun. In the body of the message we include all the legal moves that the player can - * perform. + * perform. Before we do anything though, we first need to check to see if there are still any + * blue or any red pieces on the board. If there aren't any than we know that one player has won + * the game, and we can stop the game. + * + * If the game is over, then this function will return `false'. In all other cases it will return + * `true'. */ Game.prototype.nextTurn = function() { + const b = this.board.flat().filter(p => p && p.color == Color.BLUE).length + const r = this.board.flat().filter(p => p && p.color == Color.RED).length + + if (!(b && r)) { + this.messageAll({ head: Messages.GAMEOVER, body: b == 0 ? Color.RED : Color.BLUE }) + return false + } + /* When the game starts for the first time, `this.currentTurn' will be null, so we let blue make * the first move. */ |