54 lines
1.7 KiB
CoffeeScript
54 lines
1.7 KiB
CoffeeScript
class Nikoli.Sudoku extends Nikoli.Game
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constructor: (@board, @name = 'sudoku') ->
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super @board, @name
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errors: ->
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solution = @toArray()
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errors = []
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for i in [0...solution.length]
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row = solution[i]
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for j in [0...row.length]
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cell = new Nikoli.Cell(i, j, solution)
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if cell.value == 0
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errors.push {row: i, column: j, message: 'The cell has no value.'}
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else if cell.rowDuplicates() || cell.columnDuplicates() || cell.squareDuplicates({x: Math.floor(i/3)*3, y: Math.floor(j/3)*3}, 3)
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errors.push {row: i, column: j, message: 'The number appears more than once in the row, column or square.'}
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errors
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generate: (game, solution = false) ->
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@game = game if game?
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@grid.innerHTML = @game.map((row) ->
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'<div class="grid-row">' + row.map((cell) ->
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if cell <= 0
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"<div class=\"grid-cell empty\"><input type=\"text\" #{if cell < 0 then "value=\"#{Math.abs(cell)}\""} /></div>"
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else
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"<div class=\"grid-cell white\">#{cell}</div>"
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).join('') + '</div>'
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).join('')
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return
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toggle: (cell) ->
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if cell.classList.contains 'black'
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cell.classList.remove 'black'
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cell.classList.add 'white'
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else if cell.classList.contains 'white'
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cell.classList.remove 'white'
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else
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cell.classList.add 'black'
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toArray: (solution = false) ->
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[].map.call @grid.querySelectorAll('.grid-row'), (row) ->
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[].map.call row.querySelectorAll('.grid-cell'), (cell) ->
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if cell.classList.contains('empty')
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value = parseInt(cell.querySelector('input').value)
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if isNaN(value)
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0
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else
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if solution then -value else value
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else
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parseInt(cell.innerHTML)
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