Module: Bitmapped::Commands::CommandsHelper

Included in:
FillCommand, HorizontalLineCommand, PixelFillCommand, VerticalLineCommand
Defined in:
lib/bitmapped/commands/commands_helper.rb

Instance Method Summary collapse

Instance Method Details

#coordinates_to_array_indexes(bitmap, x, y) ⇒ Object 



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# File 'lib/bitmapped/commands/commands_helper.rb', line 14

def coordinates_to_array_indexes(bitmap, x, y)
  x = x.to_i - 1
  y = y.to_i - 1
  if valid_cooridinates(bitmap, x, y)
    [x, y]
  else
    raise InvalidCoordinatesError
  end
end

#valid_cooridinates(bitmap, x, y) ⇒ Object 



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# File 'lib/bitmapped/commands/commands_helper.rb', line 6

def valid_cooridinates(bitmap, x, y)
  if (0 <= x && x <= bitmap.columns) && (0 <= y && y <= bitmap.rows)
    true
  else
    false
  end
end