above

--os.loadAPI('Loc')

local playerHeight = 1.62
local function printLoc(loc)
  print('('..loc[1]..', '..loc[2]..', '..loc[3]..')')
end
local x,y,z = 1,2,3

if rednet.isOpen() ~= true then
rednet.open('back')
end
local proto = 'waypoint'
local host = assert(rednet.lookup(proto))

print('please')

local previous
while true do
  local pos
  repeat
    pos = {gps.locate(2)}
    --print(pos,pos[1])
    -- loop until we get coords that are not NaN
  until pos[1] and (pos[1] == pos[1]) --and not (pos[1] ~= 0/0)
  --print('.')

  -- print(raw[1], raw[2])
  pos = vector.new(unpack(pos))
  pos.y = pos.y - playerHeight + 1
  pos = pos:round()

    --for i,coord in ipairs(pos) do
  --  pos[i] = math.floor(coord)
  --end
  if pos ~= previous then
    rednet.send(host, {pos.x,pos.y,pos.z}, proto)
    previous = pos
    ---print('?',pos)
  end
  sleep(0.5)
end