Quarry cover prototype enderless

local currSlot = 1
local movefail = 0
local startfail = 1

local function collision()
print("I ran into something.")
error()
end

local function refuel()
if turtle.getFuelLevel() < 10 then
print("I ran out of fuel.")
error()
end
end

local function material()
turtle.select(currSlot)
if turtle.compareTo(16) then
else
turtle.drop()
end
while turtle.getItemCount() == 0 do
if currSlot == 16 then
print("I ran out of material.")
error()
end
currSlot = currSlot+1
return material()
end
end
local function advDig()
while turtle.detect() do
turtle.dig()
if turtle.detect() then
os.sleep(0.8)
end
end
end
while true do
advDig()
refuel()
material()
turtle.select(currSlot)
if not turtle.forward() then
collision()
end
if turtle.detectDown() and startfail == 1 then
print("I think I started in the wrong spot, ")
print("please place me in a")
print("valid starting position.")
error()
end
if startfail == 1 then
startfail = 0
end
if turtle.detectDown() then
movefail = movefail+1
if movefail > 1 then
print("I think I am done.")
error()
else turtle.back()
turtle.turnRight()
end
else
movefail = 0
turtle.placeDown()
end
end