Farmer of potatoes

--[[
	Program made by gungun974
	I love potato!
 ]]--

-- declaration

-- function

function potato()
	if getBlockDownMeta("minecraft:potatoes", 7) then
		slot2 = turtle.getItemDetail(2)
		if slot2 ~= nil then
			if slot2.name == "minecraft:poisonous_potato" then
				turtle.select(2)
				turtle.transferTo(4)
				turtle.select(1)
			end
		end
		turtle.digDown()
	end
end

function seed()
	if BlockDown() == false then
		turtle.placeDown()
	end
end

function getBlockDownMeta( block , meta )
	local succes, data = turtle.inspectDown()
	if succes then
		if data.name == block and data.metadata == meta then
			return true
		else
			return false
		end
	else
		return false
	end
end

function getBlockMeta( block , meta )
	local succes, data = turtle.inspect()
	if succes then
		if data.name == block and data.metadata == meta then
			return true
		else
			return false
		end
	else
		return false
	end
end

function getBlock( block )
	local succes, data = turtle.inspect()
	if succes then
		if data.name == block then
			return true
		else
			return false
		end
	else
		return false
	end
end

function getBlockUp( block )
	local succes, data = turtle.inspectUp()
	if succes then
		if data.name == block then
			return true
		else
			return false
		end
	else
		return false
	end
end

function getBlockDown( block )
	local succes, data = turtle.inspectDown()
	if succes then
		if data.name == block then
			return true
		else
			return false
		end
	else
		return false
	end
end

function BlockDown( block )
	local succes, data = turtle.inspectDown()
	if succes then
		return true
	else
		return false
	end
end

-- start
turtle.select(1)

-- loop
while true do



	potato()
	seed()

	if getBlockMeta("minecraft:stone", 2) then
		turtle.turnLeft()
		slot9 = turtle.getItemDetail(9)
		if turtle.getFuelLevel() < 100 then
			if getBlock("minecraft:chest") then
				turtle.select(9)
				if slot9 == nil then
					turtle.suck()
				end
				turtle.refuel(2)
				turtle.select(1)
			end
		end
		turtle.turnLeft()
	end

	if getBlockMeta("minecraft:stone", 6) then
		turtle.turnLeft()
		if getBlock("minecraft:chest") then
			turtle.select(2)
			turtle.drop()
			turtle.select(1)
		end
		turtle.turnLeft()
	end

	if getBlock("minecraft:planks") then
		turtle.turnRight()
		turtle.forward()
		turtle.turnRight()
		potato()
		seed()
	end

	if getBlock("minecraft:cobblestone") then
		turtle.turnLeft()
		turtle.forward()
		turtle.turnLeft()
		potato()
		seed()
	end

	turtle.forward()

end