mining

y=0
y2=0
size=0
size2=0
i=0
j=0
m=0
torch=0
cobble="minecraft:cobblestone"
coal="minecraft:coal"


function Down()
  while(y2<12) do
    if(turtle.detectUp()) then
      turtle.digUp()
    end
    turtle.up()
    y2=y2+1
  end
  while(y2>12) do
    if(turtle.detectDown()) then
      turtle.digDown()
    end
    turtle.down()
    y2=y2-1
  end
  turtle.turnLeft()
  turtle.turnLeft()
  turtle.select(2)
  turtle.place()
  turtle.select(1)
  turtle.turnLeft()
  turtle.turnLeft()
  turtle.digUp()
  turtle.up()
  if(turtle.detect()) then
  else
    turtle.select(2)
    turtle.place()
    turtle.select(1)
  end
  turtle.turnRight()
  turtle.dig()
  turtle.select(3)
  turtle.place()
  turtle.select(1)
  turtle.down()
  turtle.turnLeft()
end

function Digging()
  Fuel()
  if(turtle.detect()) then
  else
    turtle.select(2)
    turtle.place()
    turtle.select(1)
  end
  turtle.turnRight()
  if(turtle.detect()) then
  else
    turtle.select(2)
    turtle.place()
    turtle.select(1)
  end
  turtle.turnLeft()
  turtle.turnLeft()
  for i2=0,(i+3) do
  Fuel()
  while(turtle.detect()) do
      turtle.dig()
      sleep(1)
    end
    turtle.forward()
    while(turtle.detectUp()) do
      turtle.digUp()
      sleep(1)
    end
    if(turtle.detectDown()) then
    else
      turtle.select(2)
      turtle.placeDown()
      turtle.select(1)
    end
  i=i2
  torch=torch+1
  Torch()
  end
  if(turtle.detect()) then
  else
    turtle.select(2)
    turtle.place()
    turtle.select(1)
  end
  turtle.turnRight()
  if(turtle.detect()) then
  else
    turtle.select(2)
    turtle.place()
    turtle.select(1)
  end
  turtle.turnLeft()
  turtle.turnLeft()
  for j2=0,(j+3) do
  Fuel()
    while(turtle.detect()) do
      turtle.dig()
      sleep(1)
    end
    turtle.forward()
    while(turtle.detectUp()) do
      turtle.digUp()
      sleep(1)
    end
    if(turtle.detectDown()) then
    else
      turtle.select(2)
      turtle.placeDown()
      turtle.select(1)
    end
  j=j2
  torch=torch+1
  Torch()
  size2=size2+1
  end
end

function Fuel()
  if(turtle.getFuelLevel()<50) then
    turtle.refuel(1)
  end
end

function Torch()
  if(torch>=10) then
    turtle.turnLeft()
    turtle.up()
    if(turtle.detect()) then
    else
      turtle.select(2)
      turtle.place()
    end
    turtle.turnRight()
    turtle.dig()
    turtle.back()
    turtle.select(3)
    turtle.place()
    turtle.select(1)
    turtle.down()
    turtle.forward()
    torch=0
  end
end

function Zurueck()
  turtle.turnLeft()
  turtle.turnLeft()
  while(k==0) do
    while(turtle.detect() == false) do
      turtle.forward()
      if(turtle.detect()=="minecraft:gravel") then
        turtle.dig()
      end
      if(turtle.detect()=="minecraft:sand") then
        turtle.dig()
      end
      if(turtle.detect()) then
        turtle.turnRight()
      end
      Fuel()
    end
    if(turtle.detect()) then
      turtle.turnRight()
    end
    turtle.turnRight()
    while(y2<y) do
      turtle.up()
      y2=y2+1
    end
    while(y2>y) do
      turtle.down()
      y2=y2-1
    end
    k=1
  end
end

function Inventar()
  if(turtle.getItemCount(1)<=63) then
    turtle.select(1)
    for m=4,16 do
      turtle.select(m)
      if(turtle.getItemCount() == 0)then
      else
      data = turtle.getItemDetail()
        if(data.name == coal) then
          turtle.transferTo(1,turtle.getItemSpace(1))
          turtle.select(1)
        end
      end
    end
  end
  if(turtle.getItemCount(2)<=16) then
    turtle.select(2)
    for m=4,16 do
    turtle.select(m)
    if(turtle.getItemCount()==0) then
    else
      data=turtle.getItemDetail()
      if(data.name == cobble) then
          turtle.transferTo(2,turtle.getItemSpace(2))
          turtle.select(1)
      end
    end
  end
end
  if(turtle.getItemCount(3)<=1) then
    print("Bitte Fackeln nachfuellen")
    turtle.select(3)
    while(turtle.getItemCount()==0) do
    end
    turtle.select(1)
  end
  if(turtle.getItemCount(16)>=1) then
    Zurueck()
    turtle.turnLeft()
    turtle.turnLeft()
    for m=4,16 do
      turtle.select(m)
      turtle.drop()
    end
    turtle.turnLeft()
    turtle.turnLeft()
    Down()
    AufAnfang()
  end
end

function AufAnfang()
  while(k==1) do
    while(turtle.detect() == false) do
      turtle.forward()
      Fuel()
      for m=4,15 do
        turtle.select(m)
        turtle.suck(64)
      end
    end
    if(turtle.detect()) then
      turtle.turnLeft()
    end
    if(turtle.detect()) then
      turtle.turnRight()
      k=2
    end
  end
end

print("Bitte Koordinate eingeben")
print("(Dort wo die Turtle platziert wurde)")
write("Y: ")
y=tonumber(read())

y2=y

print("")

write("Size: ")
size=tonumber(read())

print("Fuellung der Turtle")
print("Slot 1: Kohle")
print("Slot 2: Cobblestone")
print("Slot 3: Fackeln")
Inventar()
sleep(5)
Down()

print("digging...")
while(size2<size) do
  k=0
  size2=0
  Digging()
  Fuel()
  Torch()
  Inventar()
  turtle.select(1)
end
Zurueck()
turtle.turnLeft()
turtle.turnLeft()
for m=1,16 do
  turtle.select(m)
  turtle.drop()
end
turtle.turnLeft()
turtle.turnLeft()
print("finish")