Modem API

function receive()
 marg={os.pullEvent()}
 if marg[1] == "modem_message" then
  return true
 else
  return false
 end
end

function getside()
 return marg[2]
end

function getall()
 return marg
end

function getfromchan()
 return marg[3]
end

function getreplychan()
 return marg[4]
end

function getmsg()
 return marg[5]
end

function getdistance()
 return marg[6]
end

function open(side, chan)
 if peripheral.isPresent(side) and peripheral.getType(side) == "modem" then
  local modems = peripheral.wrap(side)
  modems.open(chan)
 else
  print("Modem not present on "..side.."")
 end
end

function transmit(chan, replychan, msgtosend)
 local newchan = tonumber(chan)
 local newreplychan = tonumber(replychan)
 sidepresent = nil
 for c = 1, 7 do
  if c == 1 then
   sidetocheck = "right"
  end
  if c == 2 then
   sidetocheck = "left"
  end
  if c == 3 then
   sidetocheck = "back"
  end
  if c == 4 then
   sidetocheck = "front"
  end
  if c == 5 then
   sidetocheck = "top"
  end
  if c == 6 then
   sidetocheck = "bottom"
  end
  if c == 7 then
   if sidepresent == nil then
    return false
   end
  else
   if peripheral.isPresent(sidetocheck) and peripheral.getType(sidetocheck) == "modem" then
    sidepresent = sidetocheck
   end
  end
 end
 local modems = peripheral.wrap(sidepresent)
 modems.transmit(newchan, newreplychan, msgtosend)
end

function seperate()
 toreturn = {}
  for a, b in string.gmatch(marg[5], "(%S+)") do
   toreturn[a] = b
  end
 return toreturn
end