class Numeric
Numeric
extensions for graphics
Public Instance Methods
close_to?(n, delta = 0.01)
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Is M close to N within a certain delta?
# File lib/graphics/extensions.rb, line 20 def close_to? n, delta = 0.01 (self - n).abs < delta end
degrees()
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Normalize a number to be within 0…360
# File lib/graphics/extensions.rb, line 27 def degrees self % 360 end
relative_angle(n, max)
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I am honestly befuddled by this code, and I wrote it.
I should probably remove it and start over.
Consider this method private, even tho it is in use by the demos.
# File lib/graphics/extensions.rb, line 38 def relative_angle n, max delta_cw = (self - n).degrees delta_cc = (n - self).degrees return if delta_cc < 0.1 || delta_cw < 0.1 if delta_cc.abs < max then delta_cc elsif delta_cw.close_to? 180 then [-max, max].sample elsif delta_cw < delta_cc then -max else max end end