fs.makeDir("enderMine")

area = 15
turtleId = os.getComputerLabel()
 
args = {...}
position = {}
position["yStart"] = tonumber(args[1])
position["currY"] = tonumber(args[1])
position["currX"] = 1
position["currZ"] = 1
position["direction"] = 1
position["currLayer"] = "na"
position["valuable"] = 0
 
if args[3] == "manual" then
 position["enderchest"] = "no"
 else
 position["enderchest"] = "yes"
end
 
function printPos()
term.clear()
term.setCursorPos(1,1)
print("------------")
print("x"..position["currX"])
print("z"..position["currZ"])
print("y"..position["currY"])
print("direction "..position["direction"])
print("layer "..position["currLayer"])
print("------------")
end
 
function moveForward()
while not turtle.forward() do
turtle.dig()
end
printPos()
end
 
function moveUp()
while not turtle.up() do
turtle.digUp()
end
position["currY"] = position["currY"]+1
printPos()
end
 
function moveDown()
while not turtle.down() do
turtle.digDown()
end
position["currY"] = position["currY"]-1
printPos()
end
 
function turnRight()
turtle.turnRight()
position["direction"] = position["direction"] +1
if position["direction"] > 4 then position["direction"] = 1
end
savePos()
printPos()
end
 
function turnLeft()
turtle.turnLeft()
position["direction"] = position["direction"] -1
if position["direction"] < 1 then position["direction"] = 4
end
savePos()
printPos()
end
 
 
 
--#### COMPARE UP ####
function compareUp()
turtle.select(1)
turtle.compareUp()
if turtle.compareUp() == true then
notinuse = 1
else
 
turtle.select(2)
turtle.compareUp()
if turtle.compareUp() == true then
notinuse = 1
else
 
turtle.select(3)
turtle.compareUp()
if turtle.compareUp() == true then
notinuse = 1
else
 
 
turtle.digUp()
position["valuable"] = position["valuable"] +1
end
end
end
end
 
 
--#### COMPARE DOWN ####
function compareDown()
turtle.select(1)
turtle.compareDown()
if turtle.compareDown() == true then
notinuse = 1
 
else
 
turtle.select(2)
turtle.compareDown()
if turtle.compareDown() == true then
notinuse = 1
 
else
 
turtle.select(3)
turtle.compareDown()
if turtle.compareDown() == true then
notinuse = 1
 
else
 
turtle.digDown()
position["valuable"] = position["valuable"] +1
end
end
end
end
 
 
 
 
 
function dropOff()
if position["enderchest"] == "yes" then
 stone = turtle.getItemCount(4)
 turtle.select(4)
 turtle.drop(stone-1)
 turtle.dig()
 turtle.select(16)
 turtle.place()
 for i = 5, 15 do
  turtle.select(i)
  turtle.drop()
 end
 turtle.select(16)
 turtle.dig()
 
elseif position["enderchest"] == "no" then
if turtle.getItemCount(15) > 0 then
 stone = turtle.getItemCount(4)
 turtle.select(4)
 turtle.drop(stone-1)
 findPos()
 savePos()
 position["resumeY"] = tonumber(position["currY"])
 toSurface()
 turnRight()
 turnRight()
 for i = 5, 15 do
  turtle.select(i)
  turtle.drop()
 end
 turnRight()
 turnRight()
 while position["currY"] > position["resumeY"] do
  moveDown()
  printPos()
  savePos()
 end
os.reboot()
end
end
end
 
 
 
 
 
function mineRowXPlus()
--for i = 1, area do
while position["currX"] < area do
        moveForward()
        position["currX"] = position["currX"] +1
        savePos()
        printPos()
        compareUp()
        compareDown()
end
turnRight()
dropOff()
moveForward()
compareUp()
compareDown()
position["currZ"] = position["currZ"] +1
savePos()
turnRight()
end
 
function mineRowXMinus()
--for i = 1, area do
while position["currX"] > 1 do
        moveForward()
        position["currX"] = position["currX"] -1
        savePos()
        printPos()
        compareUp()
        compareDown()
end
turnLeft()
dropOff()
moveForward()
compareUp()
compareDown()
position["currZ"] = position["currZ"] +1
savePos()
turnLeft()
end
 
function mineLayer()
--for i = 1, area/2 do
while position["currZ"] < area do
        mineRowXPlus()
        mineRowXMinus()
end
findPos()
end
 
 
function newLayer()
for i = 1, 3 do
        moveUp()
        printPos()
        savePos()
end
position["currLayer"] = position["currLayer"] + 1
savePos()
--sendBroadcast("Layer #"..position["currLayer"]..", Y:"..position["currY"])
--sendBroadcast("current valuables: "..position["valuable"])
end
 
 
 
function toBedrock()
mineStart = position["yStart"] - 6
for i = 1, mineStart do
        turtle.digDown()
        turtle.down()
        position["currY"] = position["currY"] -1
        printPos()
        savePos()
end
position["currLayer"] = 1
savePos()
position["currY"] = 6
savePos()
--sendBroadcast("Bottom reached")
printPos()
end
 
 
 
function toSurface()
findPos()
--sendBroadcast("Going up")
--for i = 1, position["yStart"] - position["currY"] do
while tonumber(position["currY"]) < tonumber(position["yStart"]) do
        moveUp()
        savePos()
end
--if tonumber(position["currY"]) > tonumber(position["yStart"]) then
while tonumber(position["currY"]) > tonumber(position["yStart"]) do
 turtle.down()
 position["currY"] = position["currY"] -1
 printPos()
 savePos()
end
--end
end
 
 
function sendBroadcast(message)
--rednet.open("right")
--rednet.broadcast("["..turtleId.."] "..message)
end
 
 
 
 
function findPos()
while position["direction"] ~= 3 do
 turnRight()
 savePos()
end
while position["currX"] > 1 do
 moveForward()
 position["currX"] = position["currX"] -1
 savePos()
end
while position["direction"] ~= 4 do
 turnRight()
 savePos()
end
while position["currZ"] > 1 do
 moveForward()
 position["currZ"] = position["currZ"] -1
 savePos()
end
while position["direction"] ~= 1 do
 turnRight()
 savePos()
end
end
 
 
 
function resume()
--sendBroadcast("Resuming, Y:"..position["currY"])
turtle.select(16)
turtle.dig()
layersToGo = math.floor((position["yStart"] - position["currY"])/4)
for i = 1, layersToGo do
 mineLayer()
 newLayer()
 if position["currY"] > 50 then
  break
 end
end
position["status"] = "off"
toSurface()
end
 
 
 
 
 
-- ## WRITE FILE ##
function savePos()
handle = fs.open("enderMine/savedPosition", "w")
handle.write(textutils.serialize(position))
handle.close()
end
 
function loadPos()
handle = fs.open("enderMine/savedPosition", "r")
readFile = handle.readLine()
if readFile ~= nil then
 position = textutils.unserialize(readFile)
end
handle.close()
end
 
 
function checkFuel()
layers = math.floor(position["yStart"] / 4)
mass = area * area * layers
fuel = turtle.getFuelLevel()
if fuel < mass then
 term.clear()
 term.setCursorPos(1,1)
 print("Not enought fuel")
 print("Fuel needed: "..mass)
 print("Current fuel: "..fuel)
 print("Put fuel in slot 15")
 sleep(1)
 print("")
 print("Press a key to continue")
 event = os.pullEvent("key")
 turtle.select(15)
 turtle.refuel()
end
end
 
 
--------------- LOOP
 
if args[2] == "on" then
--if position["status"] == "on" then
 loadPos()
 findPos()
 resume()
 position["status"] = nil
 position["status"] = "off"
 os.reboot()
end

print("checking fuel") 
 
checkFuel()

print("fuel checked") 
 
savePos()
position["status"] = "on"
layers = math.floor(position["yStart"] / 4)
position["currY"] = position["yStart"]
toBedrock()
for i = 1, layers do
        mineLayer()
        newLayer()
        if position["currY"] > 50 then
         break
        end
end
toSurface()
position["status"] = "off"
--sendBroadcast("Done")
os.reboot()