define ["./var/isInteger", "lodash", "async", "board", "coordinate"], (isInteger, _, async, Board, coordinate_trans) -> class Goban @VERSION: '0.1.0' # Stone color constants EMPTY = 0 BLACK = 1 WHITE = 2 constructor: (@row=19, @col) -> ### vars: - row - col (rows) - history - play_history - board_state - config ### ### 1. no args: @row = @col = 19 2. one arg (i.e. @row): @col := @row 3. two arg: trivial ### # if @col === null then @col = @row @col ?= @row # Ensure param(s) is/are integer(s) if !isInteger(@row) then throw new Error("First param of Goban (row) must be an integer") if !isInteger(@col) then throw new Error("Second param of Goban (col) must be an integer") # Ensure param(s) is/are not zero if @row <= 0 then throw new Error("First param of Goban (row) must be at least 1") if @col <= 0 then throw new Error("Second param of Goban (col) must be at least 1") # set up config setupConfig.call(@) # Track changes to Goban @history = {} @play_history = [] @board = new Board(@row, @col, EMPTY) @board_state = {} # create awesome queue worker = (_work, callback) -> _f = _work['f'] # function to exec _this = _work['_this'] # context _args = _work['_args'] or [] # an array _args.push(callback) _f.apply(_this,_args) @queue = async.queue(worker, 1) return # Set up config with default values setupConfig = () -> _config = {} # User defined stone values # Note: This isn't used internally. # It's used for user fetching value of stone color at a position. _config['stone'] = 'EMPTY': 'empty' 'BLACK': 'black' 'WHITE': 'white' ### values: japanese, western, matrix, cartesian See: http://senseis.xmp.net/?Coordinates matrix: from top-left to bottom-right cartesian: from bottom-left to top-right ### _config['coordinate_system'] = 'cartesian_one' _config['coordinate_system_transformations'] = coordinate_trans @_config = _config return # merge config with current config: (opts = undefined)-> if(opts is undefined) return @_config if(!_.isPlainObject(opts)) throw new Error('Attempt to load Goban config that is not a plain object.') @_config = _.assign({}, @_config, opts) return @ normalizeCoord = (first, second) -> coordinates = @_config['coordinate_system_transformations'] coord_trans_func = coordinates[@_config['coordinate_system']] if(_.isFunction(coord_trans_func)) data = {} data['row_bound'] = @row data['col_bound'] = @col func = _.bind(coord_trans_func, data, first, second) [row, col] = func() if(!isInteger(row) or !isInteger(col)) throw new Error("Transformation via coordinate system '#{@_config['coordinate_system']}' failed.") return [row, col] else throw new Error('Invalid configuration property: "coordinate_system". Given #{@_config[\'coordinate_system\']}') # transform external color to internal internalColor = (external_color) -> switch external_color when @_config['stone']['EMPTY'] then return EMPTY when @_config['stone']['BLACK'] then return BLACK when @_config['stone']['WHITE'] then return WHITE else throw new Error("Invalid external color") # transform internal color to external externalColor = (internal_color) -> switch internal_color when EMPTY then return @_config['stone']['EMPTY'] when BLACK then return @_config['stone']['BLACK'] when WHITE then return @_config['stone']['WHITE'] else throw new Error("Invalid internal color") # get stone color of (first, second) # Returns: stone color defined in config. get: (first, second) -> [row, col] = normalizeCoord.call(@, first, second) if not (0 <= col < @col) or not (0 <= row < @row) throw new Error('Goban.get() parameter(s) is/are out of bounds.') color = @board.get(row, col) # convert to external color try return externalColor.call(@, color) catch error throw new Error("Goban.get(x,y) is broken!") # set stone color of (first, second) defined in config _set = (_color=undefined, first=undefined, second=undefined, callback=undefined, queue_callback) -> if callback is undefined callback = -> err = undefined if(_color is undefined) err = new Error("No color give for Goban.set()") # _.defer(callback, err, undefined, undefined) return queue_callback(callback(err, undefined,undefined)) if(first is undefined or second is undefined) err = new Error("Invalid coordinate for Goban.set()") # _.defer(callback, err, undefined, undefined) return queue_callback(callback(err, undefined,undefined)) # construct attempt data attempt = {} attempt['color'] = _color attempt['coord'] = [first, second] # validate color color = undefined # convert to internal color try color = internalColor.call(@, _color) catch error err = new Error("Invalid color for Goban.set(). Given: #{_color}") # _.defer(callback, err, attempt, undefined) return queue_callback(callback(err, attempt, undefined)) # normalize coord and validate row = col = undefined try [row, col] = normalizeCoord.call(@, first, second) catch error # _.defer(callback, error, attempt, undefined) return queue_callback(callback(error, attempt, undefined)) if not (0 <= col < @col) or not (0 <= row < @row) err = new Error('Goban.set() coord parameter(s) is/are out of bounds.') # _.defer(callback, err, attempt, undefined) return queue_callback(callback(err, attempt, undefined)) # get old color _old_color = @board.get(row, col) ex_old_color = externalColor.call(@, _old_color) # change position's color @board.set(color, row, col) affected = {} affected[ex_old_color] = {} affected[ex_old_color][_color] = [] affected[ex_old_color][_color].push([first, second]) # _.defer(callback, err, attempt, affected) return queue_callback(callback(error, attempt, affected)) set: (_color, first, second, callback) -> work_package = f: _set, _this: @ _args: [_color, first, second, callback] @queue.push(work_package) return @ _place = (_color=undefined, first=undefined, second=undefined, callback=undefined, queue_callback) -> # future return place: (_color, first, second, callback) -> work_package = f: _place, _this: @ _args: [_color, first, second, callback] @queue.push(work_package) return @ return Goban