tmine

function dig()
steps = userside-1
while steps > 0 do
turtle.dig()
turtle.forward()
steps = steps-1
storage = turtle.getItemCount(2)
if storage > 60 then
turtle.select(2)
turtle.drop(storage-15)
end
storage = turtle.getItemCount(3)
if storage > 60 then
turtle.select(3)
turtle.drop(storage-2)
end
if fourth == true then
storage = turtle.getItemCount(4)
if storage > 60 then
turtle.select(4)
turtle.drop(storage-2)
end
end
turtle.select(1)
end
steps = userside-1
end

function turn(turn)
if turn == "left" then
turn = "right"
turtle.turnRight()
turtle.dig()
turtle.forward()
turtle.turnRight()
return turn
elseif turn == "right" then
turn = "left"
turtle.turnLeft()
turtle.dig()
turtle.forward()
turtle.turnLeft()
return turn
end
end

function lastaction()
dig()
turtle.digDown()
turtle.down()
turtle.turnRight()
turtle.turnRight()
end

function ladderfinished()
height = userheight
turtle.select(1)
while height > 0 do
turtle.down()
turtle.place()
height = height-1
end
turtle.dig()
turtle.forward()
turtle.turnRight()
turtle.turnRight()
os.shutdown()
end


function ladders()
dig()
height = userheight
turtle.select(2)
while height > 0 do
if turtle.detect() then
turtle.up()
if turtle.detectUp() then
turtle.back()
turtle.select(1)
turtle.place()
ladderfinished()
end
else
turtle.place()
turtle.up()
end
height = height-1
end
turtle.back()
ladderfinished()
end

print "Excavating..."
turtle.select(1)
userside = 6
userheight = 10
fourth = false
if (userheight % 2) ~= 0 then
userheight = userheight+1
end
steps = userside-1
lastturn = "left"
height = userheight
firsttime = true
while height > 0 do
if firsttime == false then lastaction() end
firsttime = false
col = userside-1
while col > 0 do
dig()
lastturn = turn(lastturn)
col = col-1
end
height = height-1
end
ladders()