tunneler 2x1 & torches

-- tunneler 2x1 & torches

local digsleft = 0
local maxdigs = 0
local digs = 0
local torchtime = 0
local maxtt = 0
local torches = 0
local gaps = 0
function graveldetect()
if turtle.detect() then
turtle.dig()
end
if turtle.detect() then
turtle.dig()
end
if turtle.detect() then
turtle.dig()
end
if turtle.detect() then
turtle.dig()
end
end
-- End of functions and variables.
term.clear()
term.setCursorPos(1,1)
print("Place some building material in slot one, and torches in slot nine.")
sleep(3)
print("How many blocks long would you like your tunnel? ")
maxdigs = tonumber(io.read())
print("How often should I place torches? ")
maxtt = tonumber(io.read())
term.clear()
term.setCursorPos(1,1)
digsleft = maxdigs
while true do
term.clear()
term.setCursorPos(1,1)
print("Turtle will dig "..digsleft.." more blocks.")
print("Turtle has bridged "..gaps.." gaps.")
print("Turtle has placed "..torches.." torches.")
if turtle.getItemCount(1) == 0 then
term.clear()
term.setCursorPos(1,1)
print("Turtle requires building material in slot one.")
break
else
end
if turtle.getItemCount(9) == 0 then
term.clear()
term.setCursorPos(1,1)
print("Turtle requires torches in slot nine.")
break
else
end
if turtle.detectUp() then
term.clear()
term.setCursorPos(1,1)
print("Unexpected Obstruction... Stopping Operation.")
break
else
end
if not turtle.detectDown() then
turtle.select(1)
turtle.placeDown()
gaps = gaps + 1
end
turtle.dig()
graveldetect()
turtle.up()
graveldetect()
torchtime = torchtime + 1
if torchtime == maxtt then
turtle.select(9)
turtle.back()
turtle.placeDown()
turtle.forward()
torchtime = 0
torches = torches + 1
else
end
turtle.down()
turtle.forward()
digs = digs + 1
digsleft = digsleft - 1
if digs == maxdigs then
print("Tunnel Operation Complete")
break
else
end
end