Class: Tile

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

Direct Known Subclasses

Large, Medium, Small

Defined Under Namespace

Classes: Large, Medium, Small

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(rows, cols) ⇒ Tile

Returns a new instance of Tile.



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# File 'lib/tile.rb', line 47

def initialize(rows, cols)
  @rows, @cols = rows, cols
end

Instance Attribute Details

#col ⇒ Object (readonly)

Returns the value of attribute col.



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# File 'lib/tile.rb', line 3

def col
  @col
end

#cols ⇒ Object (readonly)

Returns the value of attribute cols.



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# File 'lib/tile.rb', line 4

def cols
  @cols
end

#mosaic ⇒ Object (readonly)

Returns the value of attribute mosaic.



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# File 'lib/tile.rb', line 2

def mosaic
  @mosaic
end

#row ⇒ Object (readonly)

Returns the value of attribute row.



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# File 'lib/tile.rb', line 3

def row
  @row
end

#rows ⇒ Object (readonly)

Returns the value of attribute rows.



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# File 'lib/tile.rb', line 4

def rows
  @rows
end

Class Method Details

.area(tiles) ⇒ Object 



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# File 'lib/tile.rb', line 43

def self.area(tiles)
  tiles.inject(0) {|sum, tile| sum + tile.area}
end

.rand(max_area = nil) ⇒ Object 



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# File 'lib/tile.rb', line 28

def self.rand(max_area=nil)
  tiles = [Large, Medium, Small].map(&:new).select do |tile|
    max_area.nil? || tile.area <= max_area
  end
  tiles[Kernel.rand(tiles.size)]
end

.rand_covering(area) ⇒ Object 



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# File 'lib/tile.rb', line 35

def self.rand_covering(area)
  tiles = []
  while self.area(tiles) < area
    tiles << Tile.rand(area - self.area(tiles))
  end
  tiles
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/tile.rb', line 51

def ==(other)
  return false unless other.is_a?(Tile)
  self.rows == other.rows && self.cols == other.cols
end

#area ⇒ Object 



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# File 'lib/tile.rb', line 56

def area
  @rows * @cols
end

#place!(mosaic, row, col) ⇒ Object 



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# File 'lib/tile.rb', line 60

def place!(mosaic, row, col)
  @mosaic, @row, @col = mosaic, row, col
end

#shatter ⇒ Object 



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# File 'lib/tile.rb', line 64

def shatter
  Tile.rand_covering(area)
end