Is it possible to shorten the ringvector ".rotate()" to ".r()"?

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1

I like to shorten “spread” function to “s” with define

define :s do |a,b|
  spread(a,b)
end

live_loop :a1 do
  tick
  sample :bd_fat, amp: 2 if s(3,7).rotate(2).look
  sleep 0.25
end

is it possible to shorten “.rotate()” to “.r()”?

I have tried

define :s do |a,b|
  spread(a,b)
end

define :r do |c|
  rotate(c)
end

live_loop :a1 do
  tick
  sample :bd_fat, amp: 2 if s(3,7).r(2).look
  sleep 0.25
end

but “.rotate()” is a ringvector that affects spread(), so it’s doesn’t work.

ringvector error
ringvector error1727×129 16.1 KB

I would like to use the notation above since I find it more clear to read.
But we could write it as one function

define :s do |a,b, *args|  # with optinal parameter on r for rotate
  #                          Both notations now work fx s(3,7) or s(3,7,0)
  #                          Mister Bomb - Sonic Pi Tutorial - Adding Default and Optional Parameters to Functions
  #                          https://youtu.be/RpiWumugXrY?feature=shared&t=430
  r = 0
  r = args[0] if args.length == 1 # only looking for 1 value in args[] array
  
  spread(a,b).rotate(r)
end
live_loop :a1 do
  tick
#  sample :bd_fat, amp: 2 if s(3,7).look   # works with default value 0
  sample :bd_fat, amp: 2 if s(3,7,0).look
  sample :bd_fat, amp: 4, rpitch: 36 if s(3,7,2).look
  sleep 0.25
end

Hmm I guess I just have to get use to doing it like this since it’s less typing.

2

You have to add the method on to the RingVector class, which you can do like this:

class SonicPi::Core::RingVector
  def r(n)
    self.rotate(n)
  end
end

define :s do |a,b|
  spread(a,b)
end

puts s(3,8).r(2)

Note that this is using implementation details of Sonic Pi, so is not strictly supported, and could break in a future version.

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