View difference between Paste ID: Khy0iPLn and cicf1Mnp

 -- Minecraft Open Computers String Farm Robot
 -- Code by WolpertingerLP.de
 -- Have fun :)
 
 local robot = require("robot")
 local os = require("os")
 local component = require("component")
 
 local waitTime = 100
 
 local maintainSlot = robot.inventorySize()
 local nextToolSlot = maintainSlot - 1
 local compareSlot = nextToolSlot - 1
 local buttonSlot = compareSlot - 1
 
 local currentDirection = nil
 local searchForButtonDirectionForth = "left"
 local searchForButtonDirectionBack = "right"
 
 local searchForLeavesDirectionForth = "left"
 local searchForLeavesDirectionBack = "right"
 
 function updateDirection()
 	if currentDirection == nil then
 		currentDirection = "forth"
 	elseif currentDirection == "forth" then
 		currentDirection = "back"
 	elseif currentDirection == "back" then
 		currentDirection = "forth"
 	end
 end
 
 function checkDirection()
 	updateDirection()
 
 	turns = 0
 	turnDirection = nil
 
 	if currentDirection == "forth" then
 		turnDirection = searchForLeavesDirectionForth
 	elseif currentDirection == "back" then
 		turnDirection = searchForLeavesDirectionBack
 	end
 
 	robot.select(compareSlot)
 	for x = 0, 4 do
 		if robot.compare() then
 			if turns < 3 then
 				if currentDirection == "forth" then
 					if turnDirection == "left" then
 						searchForLeavesDirectionForth = "left"
 					elseif turnDirection == "right" then
 						searchForLeavesDirectionForth = "right"
 					end
 				elseif currentDirection == "back" then
 					if turnDirection == "left" then
 						searchForLeavesDirectionBack = "left"
 					elseif turnDirection == "right" then
 						searchForLeavesDirectionBack = "right"
 					end
 				end
 			else
 				if currentDirection == "forth" then
 					if turnDirection == "left" then
 						searchForLeavesDirectionForth = "right"
 						print("Changing search for leaves direction to right")
 					elseif turnDirection == "right" then
 						searchForLeavesDirectionForth = "left"
 						print("Changing search for leaves direction to left")
 					end
 				elseif currentDirection == "back" then
 					if turnDirection == "left" then
 						searchForLeavesDirectionBack = "right"
 						print("Changing search for leaves direction to right")
 					elseif turnDirection == "right" then
 						searchForLeavesDirectionBack = "left"
 						print("Changing search for leaves direction to left")
 					end
 				end
 			end
 			robot.select(1)
 			return
 		else
 			turns = turns + 1
 			if turnDirection == "left" then
 				robot.turnLeft()
 			elseif turnDirection == "right" then
 				robot.turnRight()
 			end
 		end
 	end
 	print("Could not determine correct direction :(")
 end
 
 function pressButton()
 	robot.select(buttonSlot)
 	turns = 0
 	turnDirection = nil
 
 	if currentDirection == "forth" then
 		turnDirection = searchForButtonDirectionForth
 	elseif currentDirection == "back" then
 		turnDirection = searchForButtonDirectionBack
 	end
 
 	for x = 0, 4 do
 		if robot.compare() then
 			if turns < 3 then
 				if currentDirection == "forth" then
 					if turnDirection == "left" then
 						searchForButtonDirectionForth = "left"
 					elseif turnDirection == "right" then
 						searchForButtonDirectionForth = "right"
 					end
 				elseif currentDirection == "back" then
 					if turnDirection == "left" then
 						searchForButtonDirectionBack = "left"
 					elseif turnDirection == "right" then
 						searchForButtonDirectionBack = "right"
 					end
 				end
 			else
 				if currentDirection == "forth" then
 					if turnDirection == "left" then
 						searchForButtonDirectionForth = "right"
 						print("Changing search for button direction to right")
 					elseif turnDirection == "right" then
 						searchForButtonDirectionForth = "left"
 						print("Changing search for button direction to left")
 					end
 				elseif currentDirection == "back" then
 					if turnDirection == "left" then
 						searchForButtonDirectionBack = "right"
 						print("Changing search for button direction to right")
 					elseif turnDirection == "right" then
 						searchForButtonDirectionBack = "left"
 						print("Changing search for button direction to left")
 					end
 				end
 			end
 			robot.use()
 			break
 		else
 			turns = turns + 1
 			if turnDirection == "left" then
 				robot.turnLeft()
 			elseif turnDirection == "right" then
 				robot.turnRight()
 			end
 		end
 	end
 end
 
 function isNextToolAlreadyInInventory()
 	toolItem = component.inventory_controller.getStackInInternalSlot(nextToolSlot)
 	if toolItem == nil then return false end
 	if toolItem.label == "Shears" then
 		return true
 	end
 	return false
 end
 
 function getToolItem()
 	robot.select(maintainSlot)
 	component.inventory_controller.equip()
 	toolItem = component.inventory_controller.getStackInInternalSlot(maintainSlot)
 	component.inventory_controller.equip()
 	robot.select(1)
 	return toolItem
 end
 
 function checkTool()
 	if isNextToolAlreadyInInventory() == false then
 		robot.select(nextToolSlot)
 		if robot.suckDown(1) then
 			print("Equipping next tool from external storage")
 		end
 	end
 	robot.select(maintainSlot)
 	toolItem = getToolItem()
 	if toolItem == nil then
 		robot.select(nextToolSlot)
 		if component.inventory_controller.equip() then
 			print("New tool equipped in tool slot")
 		else
 			print("I´m not happy with my job. Without tools i will quit... for now")
 		end
 	else
 		print(string.format("Current tool damage: %s of %s",toolItem.damage, toolItem.maxDamage))
 	end
 end
 
 function dropAll()
 	for x = 1, buttonSlot-1 do
 		robot.select(x)
 		robot.drop()
 	end
 	robot.select(1)
 end
 
 function rest()
 	step = waitTime / 10
 	print(string.format("\nSleeping for %s seconds...",waitTime))
 	for x = 0,9 do
 		os.sleep(step)
 		print(string.format("Still sleeping for about %s seconds",waitTime - (x+1)*step))
 	end
 	print("\nGood Morning little SchoolGirl")
 	print("A new day another chance\n")
 end
 
 function doWork()
 	haveWork = true
 	while haveWork do
 		checkTool()
 		robot.select(compareSlot)
 		somethingToDo = robot.compare()
 		robot.select(1)
 		if somethingToDo then
 			robot.swing()
 			robot.forward()
 		else
 			robot.forward()
 			haveWork = false
 		end
 	end
 end
 
 function startUp()
 	print("Starting string farm program ...\n")
 	os.sleep(1)
 	print("Checking inventory ...")
 	print("Warmup finished/n")
 	while true do
 		checkDirection()
 		doWork()
 		dropAll()
 		pressButton()
 		rest()
 	end
 end
 
 startUp()