ender

args={...}
x=args[1]
y=0
j=1
turn="Right"
canMoveForward=function()
        while not turtle.forward() do
                if turtle.detect() then
                        turtle.dig()
                else
                        turtle.attack()
                end
        end
        j = j + 1
end
canMoveDown=function()
        while not turtle.down() do
                if turtle.detectDown() then
                        turtle.digDown()
                else
                        turtle.attackDown()
                end
        end
end
digLevel=function()
        for i=1, x do
                while j<tonumber(x) do
                        canMoveForward()
                end
                if i<tonumber(x)
                then
                        if turn=="Left"
                        then
                                turn="Right"
                                turtle.turnLeft()
                                canMoveForward()
                                turtle.turnLeft()
                        else
                                turn="Left"
                                turtle.turnRight()
                                canMoveForward()
                                turtle.turnRight()
                        end
                else
                        if turn=="Left"
                        then
                                turtle.turnRight()
                                turtle.turnRight()
                        else
                                turtle.turnLeft()
                                turtle.turnLeft()
                        end
                end
                j=1
        end
end
print("Mining " .. x .. " x " .. x .. " mine")
while not turtle.detectDown() or turtle.digDown() do
        digLevel()
        turn="Right"
        if turtle.getItemCount(16)>0
        then
                turtle.select(1)
                turtle.placeUp()
                for i=3, 16 do
                        turtle.select(i)
                        turtle.dropUp()
                end
                turtle.select(1)
                turtle.digUp()
        end
        if turtle.getFuelLevel()< (x * x)
        then
                turtle.select(2)
                turtle.placeUp()
                turtle.select(16)
                turtle.refuel()
                turtle.suckUp(1,1)
                turtle.select(2)
                turtle.digUp()
        end
        canMoveDown()
        y=y+1
end
digLevel()
for i=1, y do
        turtle.up()
end
turtle.select(1)
        turtle.placeUp()
        for i=3, 16 do
                turtle.select(i)
                turtle.dropUp()
        end
turtle.select(1)
turtle.digUp()
print( x .. " x " .. x .. " mine complete")