So whats the SP equivalent of >= & <=?

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1 
define :decrease_volume do |i, n |
  if volume[i] - n  >  0 then # works
    volume[i] = volume[i] - n
  end
end

define :increase_volume  do |i, n |
  if volume[i] + n = < 10 then # doesn't work
    volume[i] = volume[i] + n
  end
end

Eli…

2

Hi @Eli,

try:

define :increase_volume  do |i, n |
  if volume[i] + n <= 10 
    volume[i] = volume[i] + n
  end
end

Or the more succinct:

define :increase_volume  do |i, n |
   volume[i] = volume[i] + n if volume[i] + n <= 10
end

However, be aware that using values not defined in the function such as the array volume is not recommended and certainly not thread safe (and therefore will produce non-deterministic behaviour. You are much better off using set and get, or passing volume as an argument to the function.

3

Thanks Sam…

One day I’ll rewrite my song framework to use set & get… honest.
Probably the day after it stops working…

Eli…