[Minecraft] Deploy Signal Repeater

--
--Signal Repeater deploy by WillisS
--Using thw code from GPS Deploy by neonerZ v1.1
--(http://youtube.com/neonerz)
--
--
--
--
-- In order to use this script you need to setup
-- either a mining turtle, or a standard turtle
--                Slot 1 - Fuel
--				  Slot 2 - At least 1 computers
--				  Slot 3 - At least 1 modems
--				  Slot 4 - At lease 1 disk drive
--				  Slot 5 - 1 Disk
--
--


-- How heigh up should the satellite be deployed?
local height = 254


local function printUsage()
	print("")
	print( "Usages:" )
	print( "deploySignalRepeater [current y] [height]" )
end

-- confirm default height isn't set above 254
-- Check to see if a minimum of 3 values were
-- passed to the script
local args = { ... }

if args[1] == "-u" then
	printUsage()
elseif args[1] == nil then
	-- use gps
	rednet.open("right")
	local x, y, z = gps.locate()
	height = height - tonumber(y)
else
	if args[2] ~= nil then
		height = tonumber(args[2])
	else
		height = height - tonumber(args[1])
	end
end

if height > 254 then
	height = 254
end

-- check if the script is running on a turtle
-- (original code)
if not turtle then
	print("")
	print("Error: not a turtle")
	return
end

-- move functions
-- (original code)
local mov = {}

mov.forward = function ()
	while not turtle.forward() do
		sleep(1)
	end
	return true
end
mov.back = function ()
	while not turtle.back() do
		sleep(1)
	end
	return true
end
mov.up = function ()
	while not turtle.up() do
		sleep(1)
	end
	return true
end
mov.down = function ()
	while not turtle.down() do
		sleep(1)
	end
	return true
end
mov.place = function ()
	while not turtle.place() do
		sleep(1)
	end
end
mov.placeUp = function ()
	while not turtle.placeUp() do
		sleep(1)
	end
end

local base = nil

-- Check if we have enough fuel
-- we estimate the fuel usage ((height*2)+70) needed to
-- complete the deoployment and then see if we have enough
-- fuel loaded. If we don't, it checks the first slot for
-- available fuel and tries to fill up on it. If it doesn't
-- have enough fuel in there, it prompts the user for more
-- fuel. It allows 30 seconds for the user to add  fuel
-- (trying to refuel and verify fuel level every second)
-- and if it doesn't get it's fill within 30 seconds
-- it exits with a message to the user
-- neonerZ
if type(turtle.getFuelLevel()) == "string" then
        print("No-fuel mode")
else
	if turtle.getFuelLevel() < (tonumber(height)*2)+70 then
		while turtle.getFuelLevel() < (tonumber(height)*2)+70 do
			turtle.select(1)
			realcoal=(((tonumber(height)*2)+70)-turtle.getFuelLevel())/80
			if realcoal>=64 then
				coal=64
			else
				coal=math.ceil(realcoal)
			end
			if turtle.refuel(tonumber(coal)) == false then
				fuel=((tonumber(height)*2)+70)-turtle.getFuelLevel()
				print("")
				print("You ran out of fuel in slot 1")
				print("Please insert "..fuel.." fuel or "..realcoal.." coal to continue")
				print("Waiting 30 seconds for fuel or exiting")
				i=0
				while i<=30 do
					sleep(1)
					realcoal=(((tonumber(height)*2)+70)-turtle.getFuelLevel())/80
					if realcoal>=64 then
						coal=64
					else
						coal=math.ceil(realcoal)
					end
					turtle.refuel(tonumber(coal))
					if turtle.getFuelLevel() >= (tonumber(height)*2)+70 then
						print("")
						print("Turtle Fueled")
						i=31
					end
					if i==30 then
						fuel=((tonumber(height)*2)+70)-turtle.getFuelLevel()
						print("")
						print("Not enough fuel provided")
						print("Please provide "..fuel.." fuel or "..realcoal.." coal and try again")
						return
					end
					i=i+1
				end
			end
		end
	end
end

-- check if the required quantity of items
-- are in the appropriate spots. I'm sure
-- there's a more elegant way of doing this.
-- I don't believe there's a way to check if
-- the items are correct without using compare
monitor=0
modem=0
diskdrive=0
disk=0
print("")
turtle.select(2)
if turtle.getItemCount(2) < 1 then
	print("Please place at least 4 computers into slot two")
	monitor=1
end
turtle.select(3)
if turtle.getItemCount(2) < 1 then
	print("Please place at least 4 modems into slot three")
	modem=1
end
turtle.select(4)
if turtle.getItemCount(2) < 1 then
	print("Please place 1 disk drive into slot four")
	diskdrive=1
end
turtle.select(5)
if turtle.getItemCount(2) < 1 then
	print("Please place 1 disk into slot five")
	disk=1
end

if monitor == 1 or modem == 1 or diskdrive == 1 or disk == 1 then
	print("Please fix above issues to continue")
	return
end

-- start the climb up to the correct ycord
while not turtle.up() do
	term.clear()
	term.setCursorPos(1,1)
	term.write("Please get off me")
end
for i = 3,tonumber(height) do
	turtle.up()
end

-- once at the correct height, deploy
turtle.select(2)
mov.placeUp()
mov.down()
turtle.select(3)
mov.placeUp()
mov.back()
mov.up()
turtle.select(4)
mov.placeUp()
turtle.select(5)
turtle.dropUp()

-- make a custom disk that starts up the gps host application
-- with the correct coordinates and copy it over. also makes
-- makes it a startup script so the computers will
-- start back up properly after chunk unloading
fs.delete("disk/startup")
file = fs.open("disk/startup","w")
file.write([[
fs.copy("disk/install","startup")
fs.delete("disk/startup")
print("sleep in 10")
sleep(10)
os.reboot()
]])
file.close()
file = fs.open("disk/install","w")
file.write([[
shell.run("repeat")
]])
file.close()
turtle.turnLeft()
mov.forward()
mov.up()
turtle.turnRight()
mov.forward()
turtle.turnRight()
peripheral.call("front","turnOn")
turtle.turnRight()
mov.forward()
turtle.turnLeft()
turtle.suck()
turtle.select(3)
turtle.dig()

-- goes back down. this is the original code
mov.down()
mov.down()
mov.forward()
turtle.turnLeft()
mov.forward()
while turtle.down() do
end
turtle = tMove
print("")
print("Finished")