Tree Farm

--Plant
 function plant()
 if turtle.getItemCount(1) == 0 then
 turtle.select(1)
 turtle.turnLeft()
 turtle.suck()
 turtle.turnRight()
 end
 if turtle.getItemCount(2) == 0 then
 turtle.select(2)
 turtle.turnRight()
 turtle.suck()
 turtle.turnLeft()
 end
 turtle.select(1)
 turtle.place()
 turtle.select(2)
 turtle.place()
end

--Chop
function chop()
turtle.select(3)
turtle.dig()
turtle.forward()
while turtle.compareUp() == true do
turtle.digUp()
turtle.up()
end
while turtle.detectDown() == false do
turtle.down()
end
turtle.back()
end

--Refuel
function refuel()
turtle.select(3)
turtle.refuel(1)
end

--Empty
function empty()
turtle.turnLeft()
turtle.turnLeft()
turtle.select(3)
turtle.drop()
turtle.turnRight()
turtle.turnRight()
end

while true do
refuel()
empty()
plant()
chop()
sleep(40)
os.queueEvent("Repeat")
os.pullEvent()
end