computercraft minecraft felling turtle tree farm
--[[ Running this script on a turtle with saplings in slot 1, bone-meal in slot 2 and coal in slot 16 and a chest behind the turtle for the wood drop off point will create an automatic tree farm. combining this with a chest to the left of the turtle for sapling replenishment and chest to the right for coal replenishment will ensure a long running automated process.]]

-- This function lays saplings and applies bone-meal
function plant()
	turtle.select(1)				--selects sapling
	turtle.place()					--places sapling
	turtle.select(2)				--selects bone-meal
	turtle.place()					--fertilizes sapling
	turtle.suck()					--picks up any saplings that have fallen
end

computercraft minecraft felling turtle tree farm PasteShr computercraft minecraft felling turtle tree farm
-- This function checks fuel level and refuels
function fuel()
	if turtle.getFuelLevel() < 50 then		--checks fuel level and refuels
		turtle.select(16)
		turtle.refuel(5)			--picks up any saplings that have fallen
	end
	print( turtle.getFuelLevel() .. " fuel left.")	--displays fuel level to user
end

-- This function cuts a column directly above the turtle and then returns to ground level
computercraft minecraft felling turtle tree farm How to dowload it? computercraft minecraft felling turtle tree farm
function column()
	while turtle.detectUp() == true do 		--cut tree down
		turtle.digUp()
		turtle.up()
		turtle.suck()				--picks up any saplings that have fallen
	end
	while turtle.detectDown() == false do		-- return to ground level
		turtle.down()
		turtle.suck()				--picks up any saplings that have fallen
	end
computercraft minecraft felling turtle tree farm PasteShr computercraft minecraft felling turtle tree farm
end

-- This function moves from start position, runs column and returns to start position
function fell()
	turtle.dig()					--breaks bottom block of tree
	turtle.forward()				--move into gap
	column()					--run column function
	turtle.turnRight()				--return to start
	turtle.turnRight()
	turtle.forward()
computercraft minecraft felling turtle tree farm How to get it? computercraft minecraft felling turtle tree farm
end

-- This function empties all collected wood into chest, checks sapling and fuel supplies and restocks
function empty()
	for j = 3, 15 do				-- empty slots 3 to 15 into chest
		turtle.select(j)
		turtle.drop()
	end
	turtle.turnLeft()
	if turtle.getItemCount(16) < 5 then		-- replenish fuel stocks
computercraft minecraft felling turtle tree farm How to get it? computercraft minecraft felling turtle tree farm
		turtle.select(16)
		turtle.suck(10)
	end
	turtle.turnLeft()
	if turtle.getItemCount(1) < 5 then		--replenish sapling stocks 
		turtle.turnLeft()
		turtle.select(1)
		turtle.suck()
		turtle.turnRight()
	end
computercraft minecraft felling turtle tree farm How to use it? computercraft minecraft felling turtle tree farm
end

-- This function checks to see if the sapling has been fertilized into a full tree
function compare()
	turtle.select(1)
	if turtle.compare() == true then
		return true	-- false could indicate that there is no bonemeal or saplings
	else
		return false  
	end
computercraft minecraft felling turtle tree farm How to get it? computercraft minecraft felling turtle tree farm
end

-- This block triggers the appropriate functions in the correct order.
repeat							--start loop
	fuel()						--check fuel
	plant()						--plant and fertilize tree
	fuel()						--check fuel again
	if compare() == false then			--if tree has grown cut down tree
		fell()
	else 						--if tree hasn't grown display error
computercraft minecraft felling turtle tree farm How to dowload it? computercraft minecraft felling turtle tree farm
		print("error")
		repeat
			sleep(1)
			turtle.select(2)
		until turtle.getItemCount() > 20	--this will terminate script
	end 
	empty()						--empty harvest and restock fuel and materials
until 1 > 2						-- always false creating infinite loop
computercraft minecraft felling turtle tree farm