Module: Salamander::Drawing::Shapes

Includes:
Line
Defined in:
lib/salamander/drawing/shapes.rb

Instance Method Summary collapse

Methods included from Line

#line, #line_to

Instance Method Details

#polygon(sides, length) ⇒ Object

Draws a regular polygon with ‘sides’ sides, each of length ‘length’



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# File 'lib/salamander/drawing/shapes.rb', line 17

def polygon (sides, length)
  sides.times do
    line length
    turn (360.0/sides).degrees
  end
end

#star(points, length) ⇒ Object

Draws a star-like shape with number ‘points’ of points.

‘points’ must be odd.



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# File 'lib/salamander/drawing/shapes.rb', line 8

def star (points, length)
  raise "The star must have an odd number of points" if points % 2 == 0
  points.times do
    line length
    turn (720.0/points).degrees
  end
end