gistfile1.coffee

window.App.Engine =
  matrix: []
  moveHistory: []
  initialized: false

  BLACK_STONE: 1
  WHITE_STONE: 2

  init: ->
    if @initialized
      throw 'already initialized' 

    @initMatrix()
    @initialized = true

  # Setup a 19x19 matrix
  initMatrix: ->
    @matrix = for x in [0..18]
      for y in [0..18]
        0

  # Add a move to the matrix and the move list
  enterMove: (color, x, y) ->
    # Check extremes
    if x > 18
      throw 'x out of bounds'

    if y > 18
      throw 'y out of bounds'

    if @matrix[x][y] != 0
      throw 'spot already taken' 
      
    # Add to matrix
    @matrix[x][y] = color 

    # Add to history
    @moveHistory.push(color: color, x: x, y: y)

  # How many moves in the match?
  getMoveCount: ->
    @moveHistory.length