--this function will print the text in the centre of the current line of the monitor connected on the specified side
local monitorprintcentred = function(text, side)
	local monitor = peripheral.wrap("bottom")
	local maxw, maxh = monitor.getSize() --screen dimensions
	local curx, cury = monitor.getCursorPos() --cursor pos

	monitor.setCursorPos((maxw-#text)/2,cury) --set it to the point where write will make the text centred
	monitor.write(text) --write the text
	monitor.setCursorPos(curx,cury+1) --return the cursor to the same position on the next line
end

local monitor = peripheral.wrap("bottom") -- makes 'monitor' refer to the monitor on the left side
local maxw, maxh = monitor.getSize() --screen dimensions

while true do
	monitor.clear()
	monitor.setCursorPos(1,math.floor(maxh/2))--set cursor to the start of the upper middle line

	monitorprintcentred("Welcome To","left")--print centred on that line
	monitorprintcentred("Metroid Station","left")--print centred on the next line

	os.sleep(30)
end