Module: AutoBrowse::MouseMover::MathUtils

Included in:
BrowserMouseMover, Vector
Defined in:
lib/auto_browse/mouse.rb

Instance Method Summary collapse

Instance Method Details

#clamp(target, min, max) ⇒ Object

returns target if min < target < max otherwise, returns min



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# File 'lib/auto_browse/mouse.rb', line 13

def clamp(target, min, max)
  [max, [min, target].max].min
end

#confine(target, min, max) ⇒ Object 



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# File 'lib/auto_browse/mouse.rb', line 17

def confine(target, min, max)
  case
  when target < min
    min
  when target > max
    max
  else
    target
  end
end

#coordinate_floor0(coord) ⇒ Object

coord is a pair: [x, y] returns [identity_floor0(x), identity_floor0(y)]



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# File 'lib/auto_browse/mouse.rb', line 45

def coordinate_floor0(coord)
  coord.map {|val| identity_floor0(val) }
end

#fitts(distance, width) ⇒ Object

Calculate the amount of time needed to move from (x1, y1) to (x2, y2) given the width of the element being clicked on en.wikipedia.org/wiki/Fitts%27s_law



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# File 'lib/auto_browse/mouse.rb', line 31

def fitts(distance, width)
  a = 0
  b = 2
  id = Math.log2(distance / width + 1)
  a + b * id
end

#identity_floor0(x) ⇒ Object

returns 0 if the supplied value is less than 0; otherwise returns the given value



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# File 'lib/auto_browse/mouse.rb', line 39

def identity_floor0(x)
  x < 0 ? 0 : x
end

#random_number_range(min, max) ⇒ Object 



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# File 'lib/auto_browse/mouse.rb', line 7

def random_number_range(min, max)
  rand * (max - min) + min
end