View difference between Paste ID: a4rUkCFn and 0hNhMENQ

 local function sendFuel()
   nm = string.sub(os.getComputerLabel(), 2)
   if tonumber(nm) < 10 then
     nm = "0"..nm
   end
   rednet.send(1, nm..":"..turtle.getFuelLevel())
 end
 
 local function sendAlert(msg)
   nm = string.sub(os.getComputerLabel(), 2)
   if tonumber(nm) < 10 then
     nm = "0"..nm
   end
   rednet.send(1, nm..":"..msg)
 end
 
 local function getFaceTo()
   local pos0 = vector.new(gps.locate())
   turtle.forward()
   local pos1 = vector.new(gps.locate())
   local dist = pos1 - pos0
   turtle.back()
   local faceto = ""
   if dist.x > 0 then
     faceto = "west"
   elseif dist.x < 0 then
     faceto = "east"
   elseif dist.z > 0 then
     faceto = "north"
   else
     faceto = "south"
   end
   return faceto
 end
 
 local function setFaceTo(dire)
   local pos0 = vector.new(gps.locate())
   turtle.forward()
   local pos1 = vector.new(gps.locate())
   local dist = pos1 - pos0
   turtle.back()
   local faceto = ""
   if dist.x > 0 then
     faceto = "west"
     if dire == "north" then
       turtle.turnRight()
     elseif dire == "south" then
       turtle.turnLeft()
     elseif dire == "east" then
       turtle.turnRight()
       turtle.turnRight()
     end
   elseif dist.x < 0 then
     faceto = "east"
     if dire == "north" then
       turtle.turnLeft()
     elseif dire == "south" then
       turtle.turnRight()
     elseif dire == "west" then
       turtle.turnRight()
       turtle.turnRight()
     end
   elseif dist.z > 0 then
     faceto = "north"
     if dire == "east" then
       turtle.turnRight()
     elseif dire == "south" then
       turtle.turnRight()
       turtle.turnRight()
     elseif dire == "west" then
       turtle.turnLeft()
     end
   else
     faceto = "south"
     if dire == "east" then
       turtle.turnLeft()
     elseif dire == "north" then
       turtle.turnRight()
       turtle.turnRight()
     elseif dire == "west" then
       turtle.turnRight()
     end
   end
 end
 
 local function forBack(dist)
   d = dist
   if d < 0 then
     d = -d
   end
   for i=1, d do
     if dist > 0 then
       turtle.forward()
     else
       turtle.back()
     end
   end
 end
 
 local function upDown(dist)
   d = dist
   if d < 0 then
     d = -d
   end
   for i=1, d do
     if dist > 0 then
       turtle.up()
     else
-  name, x, y, z = msg:match("([^,]+),([^,]+),([^,]+),([^,]+)")
+
     end
   end
-    curpos = vector.new(gps.locate())
+
-    faceto = getFaceTo()
+
-    x = tonumber(x)
+
-    y = tonumber(y)
+
-    z = tonumber(z)
+
-    target = vector.new(x, y, z)
+
     forBack(dist.x)
     turtle.turnRight()
   elseif faceto == "south" then
     turtle.turnRight()
     forBack(dist.x)
     turtle.turnLeft()
   elseif faceto == "east" then
     turtle.turnLeft()
     turtle.turnLeft()
     forBack(dist.x)
     turtle.turnRight()
     turtle.turnRight()
   else
     forBack(dist.x)
   end
 end
 
 local function moveAxisZ(faceto, curpos, target)
   local dist = target - curpos
   if faceto == "north" then
     forBack(dist.z)
   elseif faceto == "south" then
     turtle.turnLeft()
     turtle.turnLeft()
     forBack(dist.z)
     turtle.turnRight()
     turtle.turnRight()
   elseif faceto == "east" then
     turtle.turnLeft()
     forBack(dist.z)
     turtle.turnRight()
   else
     turtle.turnRight()
     forBack(dist.z)
     turtle.turnLeft()
   end
 end
 
 local function moveAxisY(curpos, target)
   local dist = target - curpos
   upDown(dist.y)
 end
 
 local function dispStatus(pos, target, faceto)
   print("pos:"..tostring(pos))
   print("faceTo:"..faceto)
   print("dist:"..tostring(target - pos))
 end
 
 local function suckChest()
   turtle.turnRight()
   turtle.turnRight()
   turtle.select(2)
   turtle.suck()
   turtle.turnLeft()
   turtle.turnLeft()
 end
 
 local function makedots(points)
   for i = 1, #points do
     if turtle.detect() == true then
       sendAlert("Obstacle")
       break
     else
       turtle.forward()
     end
     if string.sub(points, i, i) == "1" then
       turtle.turnLeft()
       turtle.select(2)
       turtle.place()
       turtle.turnRight()
     end
   end
 end
 
 local function erasedots(wide)
   for i = 1, tonumber(wide) do
     if turtle.detect() == true then
       sendAlert("Obstacle")
       break
     else
       turtle.forward()
     end
     turtle.turnLeft()
     local ret, msg = turtle.dig()
     if ret == False then
 	  print("msg:"..msg)
     end
     turtle.turnRight()
   end
 end
 
 local function gotoxyz(name, x, y, z)
   print(name..":"..x..":"..y..":"..z)
   local curpos = vector.new(gps.locate())
   local faceto = getFaceTo()
   local target = vector.new(tonumber(x), tonumber(y), tonumber(z))
   moveAxisZ(faceto, curpos, target)
   moveAxisY(curpos, target)
   moveAxisX(faceto, curpos, target)
   curpos = vector.new(gps.locate())
   faceto = getFaceTo()
   target = vector.new(tonumber(x), tonumber(y), tonumber(z))
   local dist = target - curpos
   if dist.x ~= 0 or dist.y ~= 0 or dist.z ~= 0 then
     moveAxisZ(faceto, curpos, target)
     moveAxisY(curpos, target)
     moveAxisX(faceto, curpos, target)
   end
 end
 
 rednet.open("left")
 print("name:"..os.getComputerLabel())
 print("fuel:"..turtle.getFuelLevel())
 
 while true do
   if turtle.getFuelLevel() < 80 then
     turtle.refuel()
   end
 
   local sid, msg, dis = rednet.receive()
   name, px, py, pz = msg:match("([^,]+),([^,]+),([^,]+),([^,]+)")
 
   if name == os.getComputerLabel() then
     if px == "suck" then
       print(name..":"..px)
       suckChest()
     elseif px == "dots" then
       print(name..":"..px..":"..py)
       makedots(py)
     elseif px == "erase" then
       print(name..":"..px..":"..py)
       erasedots(py)
     elseif px == "faceto" then
       print(name..":"..px..":"..py)
       setFaceTo(py)
     elseif px == "fuel" then
       print(name..":"..px..":"..turtle.getFuelLevel())
       sendFuel()
     else
       gotoxyz(name, px, py, pz)
     end
   end
 end