View difference between Paste ID: fjLjT5n0 and xUh8Hzp4

 --recursive digging
 -- usage: recdig <mode> [list]
 
 local sides = { "top", "front", "bottom", "left", "right", "back" }
 
 local targs = { ... }
 
 --local mode = "any"		-- dig any block detected
 --local mode = "white"	-- takes a whitelist of blocks in form of inventory slots
 --local mode = "black"	-- takes a blacklist of blocks in form of inventory slots
 local mode = ""
 local list = {}
 
 function checkInput()
 	local valid = true
 	if #targs == 0 then
 		valid = false
 	end
 	if #targs == 1 and targs[1] ~= "any" then
 		valid = false
 	end
 	if #targs > 1 then
 		if targs[1] ~= "white" and targs[1] ~= "black" then
 			valid = false
 		end
 		for i = 2,#targs do
 			if tonumber(targs[i]) < 1 or tonumber(targs[i]) > 16 then
 				valid = false
 			end
 		end
 	end
 	if not valid then
 		print("usage: recdig <mode> [list]")
 		print("modes: any, white, black")
 		print("list: list of slots used for black- or white-listing")
 	end
 	return valid
 end
 
 function turnAround()
 	turtle.turnLeft()
 	turtle.turnLeft()
 end
 
 function checkSides()
 	sleep(0.25)
 	for s = 1,#sides do
 		print("checking "..sides[s])
 		checkSide(sides[s])
 	end
 end
 
 function wantThis(mode, side)		-- returns true or false depending on whether the block we're checking is one we want
 	if mode == "any" then
 		if side == "up" then
 			return turtle.detectUp()
 		elseif side == "down" then
 			return turtle.detectDown()
 		elseif side == "front" then
 			return turtle.detect()
 		end
 	elseif mode == "white" then
 		local ret = false
 		for l = 1,#list do
 			turtle.select(l)
 			if side == "up" then
 				if turtle.compareUp() then
 					ret = true
 				end
 			elseif side == "down" then
 				if turtle.compareDown() then
 					ret = true
 				end
 			elseif side == "front" then
 				if turtle.compare() then
 					ret = true
 				end
 			end
 		end
 		return ret
 	elseif mode == "black" then
 		local ret = true
 		for l = 1,#list do
 			turtle.select(l)
 			if side == "up" then
 				if turtle.compareUp() or not turtle.detectUp() then
 					ret = false
 				end
 			elseif side == "down" then
 				if turtle.compareDown() or not turtle.detectDown() then
 					ret = false
 				end
 			elseif side == "front" then
 				if turtle.compare() or not turtle.detect() then
 					ret = false
 				end
 			end
 		end
 		return ret
 	end
 end
 
 function checkSide(side)
 	if side == "top" then
 		if wantThis(mode, "up") then
 			print("block above detected")
 			blocksmined = blocksmined + 1
 			while not turtle.up() do
 				if not turtle.digUp() then
 					turtle.attackUp()
 				end
 			end
 			checkSides()
 			while not turtle.down() do
 				turtle.attackDown()
 			end
 		end
 	elseif side == "front" then
 		if wantThis(mode, "front") then
 			print("blcok in front detected")
 			blocksmined = blocksmined + 1
 			while not turtle.forward() do
 				if not turtle.dig() then
 					turtle.attack()
 				end
 			end
 			checkSides()
 			turnAround()
 			while not turtle.forward() do
 				turtle.attack()
 			end
 			turnAround()
 		end
 	elseif side == "bottom" then
 		if wantThis(mode, "down") then
 			print("block below detected")
 			blocksmined = blocksmined + 1
 			while not turtle.down() do
 				if not turtle.digDown() then
 					turtle.attackDown()
 				end
 			end
 			checkSides()
 			while not turtle.up() do
 				turtle.attackUp()
 			end
 		end
 	elseif side == "left" then
 		turtle.turnLeft()
 		if wantThis(mode, "front") then
 			print("block left detected")
 			blocksmined = blocksmined + 1
 			while not turtle.forward() do
 				if not turtle.dig() then
 					turtle.attack()
 				end
 			end
 			checkSides()
 			turnAround()
 			while not turtle.forward() do
 				turtle.attack()
 			end
 			turnAround()
 		end
 		turtle.turnRight()
 	elseif side == "right" then
 		turtle.turnRight()
 		if wantThis(mode, "front") then
 			print("block right detected")
 			blocksmined = blocksmined + 1
 			while not turtle.forward() do
 				if not turtle.dig() then
 					turtle.attack()
 				end
 			end
 			checkSides()
 			turnAround()
 			while not turtle.forward() do
 				turtle.attack()
 			end
 			turnAround()
 		end
 		turtle.turnLeft()
 	elseif side == "back" then
 		turnAround()
 		if wantThis(mode, "front") then
 			print("block behind detected")
 			blocksmined = blocksmined + 1
 			while not turtle.forward() do
 				if not turtle.dig() then
 					turtle.attack()
 				end
 			end
 			checkSides()
 			turnAround()
 			while not turtle.forward() do
 				turtle.attack()
 			end
 			turnAround()
 		end
 		turnAround()
 	end
 end
 
 if checkInput() then
 	blocksmined = 0
 	startfuel = turtle.getFuelLevel()
 	mode = targs[1]
 	if #targs > 1 then
 		for i = 2,#targs do
 			list[i-1] = targs[i]
 		end
 	end
-	local yesno = read()
+
 		print("Ready to start recursive mining in any-mode. I will mine all blocks I can reach until I run out of blocks or fuel.")
 	elseif mode == "black" then
 		print("Ready to start recursive mining in "..mode.."-list mode. I will mine all blocks not on the supplied list")
 	elseif mode == "white" then
 		print("Ready to start recursive mining in "..mode.."-list mode. I will mine all blocks on the supplied list")
 	end
 	print("ready to start? y/n")
 	--local yesno = read()
 	local yesno = "y"
 	if yesno ~= "y" then
 		exit()
 	else
 		checkSides()
 	end
 	endfuel = turtle.getFuelLevel()
 	fuelconsumed = startfuel - endfuel
 	print("Mined "..blocksmined.." blocks using "..fuelconsumed.." moves")
 end