GPS v2.0

--GPS v1.2
--SAVE AS "mygps"


 tArgs = {...}

function autoUpdate()
	offv = fs.open("mygps","r")
	onv = http.get("http://pastebin.com/raw.php?i=NZdC82A2")


	if offv.readAll() ~= onv.readAll() then
		shell.run("clear")
		offv.close()
		print("Would you like to updaye (y/n)")

		if read() == "y" then
			print("Okay Updating...")

			print("Downloading newer version")

			shell.run("pastebin get NZdC82A2 mygpsUPDATE")

			print("Downloaded!")
			print("Deleting older version")

			fs.delete("mygps")

			print("Deleted!")
			print("Finishing...")

			fs.move("mygpsUPDATE","mygps")
			shell.run()
			print("Done Updating!")
			error()
		end
	end
end

autoUpdate()
currentLab = os.getComputerLabel()

if tArgs[1] == nil  and fs.isDir("bases") == true then
	print("Usage: mygps <location/add/delete/help>")
	error()
end

if tArgs[1] == "add" then
	shell.run("clear")

		print("Name of area/base?")
			name = read()

			shell.run("clear")

		print("What is the x cordinate?")

				xcord = read()
				shell.run("clear")

				print("What is the y cordinate?")
					ycord = read()
					shell.run("clear")

				print("What is the z cordinate?")
					zcord = read()
					shell.run("clear")

		repeat
			print("Is this correct? (y/n)")
			print("Area Name: "..name)
			print("X Cord: "..xcord)
			print("Y Cord: "..ycord)
			print("Z Cord: "..zcord)

				input = read()

				if input == "y" then
					baseFile = fs.open("bases/"..tostring(name),"w")
					baseFile.writeLine(tostring(xcord))
					baseFile.writeLine(tostring(ycord))
					baseFile.writeLine(tostring(zcord))
					baseFile.close()
					shell.run("clear")
					print("Okay! Area created!")
				elseif input == "n" then
					shell.run("clear")
					print("Okay! Area not created!")
				end
		until input == "n" or input == "y"
		error()
end

if tArgs[1] == "delete" then
		shell.run("clear")

		print("Name of area/base?")
		name = read()

		if fs.exists("bases/"..name) == true then
			shell.run("clear")
			print("Are you sure you want to delete the location "..name.."? (y/n)")

			input = read()

			if input == "y" then
				fs.delete("bases/"..name)
				shell.run("clear")
				print("Deleted!")
				error()
			elseif input == "n" then
				print("Deletion canceled!")
				error()
			end

		else
			printError("Location not found")
			error()
		end
end




if fs.isDir("bases") == false then
	shell.run("clear")
	print("Bases directory does no exist.")
	print("Would you like to make one? (y/n)")

	input = read()

	if input == "y" then
		shell.run("clear")
		print("Creating directory...")
			fs.makeDir("bases")
			baseFile = fs.open("bases/example","w")
			baseFile.writeLine("--This is the format--")
			baseFile.writeLine("(The x Cord) -369")
			baseFile.writeLine("(The y Cord) 52")
			baseFile.writeLine("(The z Cord) 869")
			baseFile.close()
		shell.run("clear")
		print("Done! Type <where add> to add a location")
		error()
	else
		print("Directory is required! Goodbye!")
		error()
	end
end

if fs.exists("bases/"..tArgs[1]) == true then
	data = fs.open("bases/"..tArgs[1],"r")
	x = data.readLine()
	y = data.readLine()
	z = data.readLine()
	data.close()
else
	printError("Location not recorded")
	error()
end

	base = vector.new(x,y,z)

	current = vector.new(gps.locate()):round()

	path = current-base


function go()
while true do
	shell.run("clear")
	print("To get to "..tArgs[1].."...")

	current = vector.new(gps.locate()):round()

	path = current-base


		if path.x > 1 then
			print("Go "..(path.x).." Blocks West")
			xP = ((path.x).." Blocks West")
		elseif path.x < -1 then
			print("Go "..math.abs(path.x).." Blocks East")
			xP = (math.abs(path.x).. " Blocks East")
		else
			xP = (" ")
		end

		if path.z > 1 then
			print("Go "..path.z.." Blocks North")
			if xP ~= " " then
				os.setComputerLabel("Go "..(path.z).." Blocks North and "..xP)
			elseif xP == " " then
				os.setComputerLabel("Go "..(path.z).." Blocks North "..xP)
   end
		elseif path.z < -1 then
			print("Go "..math.abs(path.z).." Blocks South")
			if xP ~= " " then
				os.setComputerLabel("Go "..math.abs(path.z).." Blocks South and "..xP)
			elseif xP == " " then
				os.setComputerLabel("Go "..math.abs(path.z).." Blocks South "..xP)
  	end
  else
			os.setComputerLabel("Go "..xP)
		end

		if math.abs(path.x) < 5 and math.abs(path.z) < 5 then
			shell.run("clear")
			print("You are at the location!")
			os.setComputerLabel("You are at the location!")
			sleep(.5)
			os.setComputerLabel(currentLab)
			error()
		end



	print()
	print("The cordinates are "..x.." "..y.." "..z)

	sleep(.1)
end
end

function exit()
	event,p1,p2,p3 = os.pullEvent()

	if key.getName(p1) == "t" and event == "key" then
		os.setComputerLabel(currentLab)
		shell.run("clear")
		print("Canceled")
	end
end

parallel.waitForAny(go(),exit())

os.setComputerLabel(currentLab)