function CutTree()
    h = 1
    turtle.dig()
    turtle.forward()
    latitude, longitude, height = gps.locate(2)
    while turtle.detectUp() do
        turtle.digUp()
        turtle.up()
        h = h + 1
    end
    while not turtle.forward() do
        turtle.dig()
    end
    for i=1,h,1 do
        latitude, longitude, height = gps.locate(2)
        if height > 6 then
            turtle.digDown()
            turtle.down()
        end
    end
    turtle.turnRight()
    while not turtle.forward() do
        turtle.dig()
    end
    for i=1,h,1 do
        turtle.digUp()
        turtle.up()
    end
    turtle.turnRight()
    while not turtle.forward() do
        turtle.dig()
    end
    for i=1,h,1 do
        latitude, longitude, height = gps.locate(2)
        if height > 6 then
            turtle.digDown()
            turtle.down()
        end
    end
    turtle.turnRight()
    while not turtle.forward() do
        turtle.dig()
    end
    turtle.turnRight()
    turtle.back()
    h = 1
end --CutTree

function DumpInventory()
    turtle.turnRight()
    turtle.forward()
    turtle.forward()
    for i=1,16,1 do
        turtle.select(i)
        turtle.drop()
    end
    turtle.back()
    turtle.back()
    turtle.turnLeft()
    turtle.select(1)
end --DumpInventory

function Main()
    while true do
        latitude, longitude, height = gps.locate(2)
        n = turtle.getFuelLevel()
        if n > 320 then
            turtle.up()
            if turtle.detect() then
                turtle.down()
                CutTree()
                DumpInventory()
            end
            if not turtle.detect() then
                turtle.down()
            end
            if not height == 6 then
                if height > 6 then
                    turtle.down()
                end
                if height < 6 then
                    turtle.up()
                end
            end
        end
        sleep(15)
        n = turtle.getFuelLevel()
        print(n)
    end
end --Main

Main()