Class: GameBoardFolder

Inherits:
Object
  • Object
show all
Defined in:
lib/threesmodel/game_board_folder.rb

Overview

A game board keeps and manipulates the state of the game.

Instance Method Summary collapse

Constructor Details

#initialize(line_folder = LineFolder.new) ⇒ GameBoardFolder 



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# File 'lib/threesmodel/game_board_folder.rb', line 5

def initialize(line_folder = LineFolder.new )
  @line_folder = line_folder
end

Instance Method Details

#can_fold_down?(state) ⇒ Boolean 



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# File 'lib/threesmodel/game_board_folder.rb', line 77

def can_fold_down?(state)
  foldable = false
  state.column_vectors.each{|line|
    foldable = (foldable or @line_folder.can_fold?(line.to_a.reverse))
  }
  foldable
end

#can_fold_left?(state) ⇒ Boolean 



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# File 'lib/threesmodel/game_board_folder.rb', line 53

def can_fold_left?(state)
  foldable = false
  state.row_vectors.each{|line|
    foldable = (foldable or @line_folder.can_fold?(line.to_a))
  }
  foldable
end

#can_fold_right?(state) ⇒ Boolean 



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# File 'lib/threesmodel/game_board_folder.rb', line 61

def can_fold_right?(state)
  foldable = false
  state.row_vectors.each{|line|
    foldable = (foldable or @line_folder.can_fold?(line.to_a.reverse))
  }
  foldable
end

#can_fold_up?(state) ⇒ Boolean 



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# File 'lib/threesmodel/game_board_folder.rb', line 69

def can_fold_up?(state)
  foldable = false
  state.column_vectors.each{|line|
    foldable = (foldable or @line_folder.can_fold?(line.to_a))
  }
  foldable
end

#fold_down(state) ⇒ Object

Folds the game board downwards.



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# File 'lib/threesmodel/game_board_folder.rb', line 43

def fold_down(state)
  new_state = []
  state.column_vectors.each {|column|
    values = column.to_a.reverse
    values = @line_folder.fold(values)
    new_state << values.reverse
  }
  Matrix.columns(new_state)
end

#fold_left(state) ⇒ Object

Folds the game board from right to left.



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# File 'lib/threesmodel/game_board_folder.rb', line 10

def fold_left(state)
  new_state = []
  state.row_vectors.each_index {|i|
    values = state.row_vectors[i].to_a
    values = @line_folder.fold(values)
    new_state << values
  }
  Matrix.rows(new_state)
end

#fold_right(state) ⇒ Object

Folds the game board from left to right.



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# File 'lib/threesmodel/game_board_folder.rb', line 21

def fold_right(state)
  new_state = []
  state.row_vectors.each {|row|
    values = row.to_a.reverse
    values = @line_folder.fold(values)
    new_state << values.reverse
  }
  Matrix.rows(new_state)
end

#fold_up(state) ⇒ Object

Folds the game board upwards.



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# File 'lib/threesmodel/game_board_folder.rb', line 32

def fold_up(state)
  new_state = []
  state.column_vectors.each {|column|
    values = column.to_a
    values = @line_folder.fold(values)
    new_state << values
  }
  Matrix.columns(new_state)
end