Digger2

term.clear()
term.setCursorPos(1,1)

function fwd()
  turtle.forward()
end


function lft()
  turtle.turnLeft()
end

function rgt()
  turtle.turnRight()
end

function up()
  turtle.up()
end

function dwn()
  turtle.down()
end

function dig()
  turtle.dig()
end

function dup()
  turtle.digUp()
end

print("Tunnel Digger by ReactionCraft")
print("")
print("")
print("Length?")
print("")

l = tonumber(read())

print("Height?")

h = tonumber(read())

print("Left or right?")

d = read()

count = 0

term.clear()
term.setCursorPos(1,1)
print("Length: "..tostring(l))
print("Height: "..tostring(h))
print("")
print("Digging...")

dig()
fwd()
rgt()

for i2=1,h do
  for i1=1,l do
    dig()
    fwd()
  end
  if count == h-1 then
    break
  else
  dup()
  up()
  lft()
  lft()
  count = count+1
  end
end

term.clear()
term.setCursorPos(1,1)
print("Returning home...")
for i3=1,l do
  turtle.back()
end

for i4=1,h do
  dwn()
end

term.clear()
term.setCursorPos(1,1)
print("Finished digging!")
print("")
print("Press any key to exit")
os.pullEvent("key")
term.clear()