View difference between Paste ID: xUh8Hzp4 and N8vZcWq2

 --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")
 			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")
 			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")
 			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")
 			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")
 			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")
 			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
 	mode = targs[1]
 	if #targs > 1 then
 		for i = 2,#targs do
 			list[i-1] = targs[i]
 		end
 	end
 	if mode == "any" then
 		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()
 	if yesno ~= "y" then
 		exit()
 	else
 		checkSides()
 	end
 end