Quarry manager with Rednet

mon=peripheral.wrap("bottom")
mon.clear()
mon.setTextScale(1)
mon.setCursorPos(1,1)

managerID = os.computerID()
print("Manager "..managerID.." online.")
rednet.broadcast("Manager 66 is online")

--rednet.announce()

--print(os.computerID())

jobAvailable = true

-- find beginning and end block and edit below accordingly
-- diametric

xStart = -207
zStart = 99

xEnd = -180
zEnd = 70

qDist = 11

xNextJob = xStart
zNextJob = zStart
-- fill this in hardcoded below
yNextJob = 64

rednet.close("right")
rednet.open("right")

function setNextJob()
  zNextJob = zNextJob - qDist
    if zNextJob < zEnd then
      zNextJob = zStart
      xNextJob = xNextJob - qDist
        if xNextJob < xEnd then
          jobAvailable = false
        end
    end
end

while jobAvailable do

--rednet.announce()

print("Job manager "..managerID.." waiting for connection...")

id, message, dist = rednet.receive()

print("Turtle "..id.." needs a job...")


--  if jobAvailable then
    if message == "getJob" then
      print("Job available at "..xNextJob.." "..zNextJob..".")
      print("Assigning job to turtle "..id..".")

      rednet.send(id, "yes")
--      print("break")
      rednet.send(id, tostring(xNextJob))
      rednet.send(id, tostring(zNextJob))
      rednet.send(id, tostring(yNextJob))
      setNextJob()
    end
--test
end

print("No more jobs available.")

while true do
--  else
    id, message, dist = rednet.receive()
    if message == "getJob" then
    rednet.send(id, "no")
    end
end