chordbuffer.lua

music = require 'mark_eats/musicutil'

chordsList = {}
timeSet = 0
timeDone = 0

--midi function
m = midi.connect()
m.event = function(data)
  local d = midi.to_msg(data)
  if d.type == "note_on" then
    noteBuffer(d.note)
    timeDone = util.time()
  end
end

--note function
function noteBuffer(aNote)
  timeSet = util.time()
  for k, v in pairs (chordsList) do --ignore duplicate notes
    if aNote == v then
    return
    end
  end 
  if timeSet - timeDone < .5 then --set window for note input presses
    table.insert(chordsList, aNote)
  else -- clears table and starts new buffer
    print('Initializing buffer')
    for k, v in pairs(chordsList) do chordsList[k]=nil end
    table.insert(chordsList, aNote)
  end
  capturedNotes = music.note_nums_to_names(chordsList)
  print(#chordsList .. '-size buffer of notes ' )
  for k, v in pairs(capturedNotes) do 
    print(v)
  end
end