Class: TileMatrix

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

Instance Method Summary collapse

Constructor Details

#initialize ⇒ TileMatrix

Returns a new instance of TileMatrix.



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

def initialize
  @columns = []
end

Instance Method Details

#[](col, row) ⇒ Object 



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# File 'lib/tile_matrix.rb', line 7

def [](col, row)
  @columns[col][row]
end

#[]=(col, row, value) ⇒ Object 



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# File 'lib/tile_matrix.rb', line 11

def[]=(col, row, value)
  @columns[col] ||= []
  @columns[col][row] = value
end

#add_column(new_column) ⇒ Object 



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# File 'lib/tile_matrix.rb', line 63

def add_column(new_column)
  @columns << new_column
end

#add_row(new_row) ⇒ Object 



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# File 'lib/tile_matrix.rb', line 67

def add_row(new_row)
  @columns.each_with_index do |c, i|
    c << new_row[i]
  end
end

#each ⇒ Object 



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# File 'lib/tile_matrix.rb', line 24

def each
  @columns.each_with_index do |row, col_idx|
    row.each_with_index do |value, row_idx|
      yield col_idx, row_idx, value
    end
  end
end

#height ⇒ Object 



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# File 'lib/tile_matrix.rb', line 20

def height
  @columns[0].size
end

#reduce(width, height) ⇒ Object 



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

def reduce(width, height)
  @columns.slice!(width..@columns.length - 1)
  @columns.each do |c|
    c.slice!(height..c.length - 1)
  end
end

#shift_down(new_row) ⇒ Object 



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# File 'lib/tile_matrix.rb', line 49

def shift_down(new_row)
  @columns.each_with_index do |c, i|
    c.delete_at(c.length - 1)
    c.unshift(new_row[i])
  end
end

#shift_left(new_column) ⇒ Object 



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# File 'lib/tile_matrix.rb', line 32

def shift_left(new_column)
  @columns.shift
  @columns.push(new_column)
end

#shift_right(new_column) ⇒ Object 



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# File 'lib/tile_matrix.rb', line 37

def shift_right(new_column)
  @columns.delete_at(@columns.length - 1)
  @columns.unshift(new_column)
end

#shift_up(new_row) ⇒ Object 



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# File 'lib/tile_matrix.rb', line 42

def shift_up(new_row)
  @columns.each_with_index do |c, i|
    c.shift
    c.push(new_row[i])
  end
end

#width ⇒ Object 



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# File 'lib/tile_matrix.rb', line 16

def width
  @columns.size
end