Class: Amaze::Cell

Inherits:
Object
  • Object
show all
Defined in:
lib/amaze/cell.rb

Direct Known Subclasses

Hex, Octo, Polar, Square

Defined Under Namespace

Classes: Hex, Octo, Polar, Square

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(row, column) ⇒ Cell

Returns a new instance of Cell.



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# File 'lib/amaze/cell.rb', line 11

def initialize row, column
  @row = row
  @column = column
  
  @links = {}
end

Instance Attribute Details

#column ⇒ Object (readonly)

The position of the cell in the grid



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# File 'lib/amaze/cell.rb', line 9

def column
  @column
end

#row ⇒ Object (readonly)

The position of the cell in the grid



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# File 'lib/amaze/cell.rb', line 9

def row
  @row
end

Instance Method Details

#distances ⇒ Object 



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# File 'lib/amaze/cell.rb', line 43

def distances
  distances = Amaze::Distances.new self
  frontier = [self]
  
  while frontier.any?
    new_frontier = []
    
    frontier.each do |cell|
      cell.links.each do |linked|
        next if distances[linked]
        distances[linked] = distances[cell] + 1
        new_frontier << linked
      end
    end
    
    frontier = new_frontier
  end
  
  distances
end

#inspect ⇒ Object 



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# File 'lib/amaze/cell.rb', line 35

def inspect
  "cell(#{row},#{column})"
end

#link(cell, bidi = true) ⇒ Object 



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# File 'lib/amaze/cell.rb', line 22

def link cell, bidi=true
  @links[cell] = true
  cell.link self, false if bidi
end

#linked?(cell) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/amaze/cell.rb', line 27

def linked? cell
  @links.key? cell
end

#linked_to?(direction) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/amaze/cell.rb', line 31

def linked_to? direction
  @links.key? self.send(direction)
end

#links ⇒ Object 



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# File 'lib/amaze/cell.rb', line 18

def links
  @links.keys
end

#to_s ⇒ Object 



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# File 'lib/amaze/cell.rb', line 39

def to_s
  "(#{row},#{column})"
end