View difference between Paste ID: KN4pBkKH and d1ECnJR3

 m = peripheral.wrap("monitor_4")
 m.setBackgroundColor(colors.black)
 m.setTextScale(0.5)
 x,y = m.getSize()
 print(x..":"..y)
 
 iter = 0
 text = "(==<<=("
 items = {}
 stars = {}
 starsNbr = 150
 
 function registerStars()
 	stars = {}
 	for i=1,starsNbr do
 		toAdd = {}
 		toAdd["x"] = math.random(1,x)
 		toAdd["y"] = math.random(1,y)
 		table.insert(stars, toAdd)
 	end
 end
 
 function forwardStars()
 	for k,v in pairs(stars) do
 		stars[k]["x"] = stars[k]["x"]-1
 	end
 	for i=1,10 do
 		toAdd = {}
 		toAdd["x"] = x
 		toAdd["y"] = math.random(1,y)
 		if math.random(1,100) > 80 then table.insert(stars, toAdd) end
 	end
 end
 
 function drawStars()
 	for k,v in pairs(stars) do
 		m.setCursorPos(v["x"],v["y"])
 		if math.random(1,100) > 70 then m.setTextColor(colors.gray) end
 		m.write(".")
 	end
 end
 
 function redraw()
 	m.clear()
 	m.setTextColor(colors.gray)
 	drawStars()
 	m.setTextColor(colors.red)
 	for k,v in pairs(items) do
 		items[k]["x"] = v["x"]-1
 		m.setCursorPos(v["x"],v["y"])
 		m.write(text)
 		if v["x"] < 0 then table.remove(items,k) end
 	end
 end
 
 function addPlot()
 	h = math.random(1,y)
 	add = {}
 	add["x"] = x
 	add["y"] = h
 	table.insert(items,add)
 end
 
 registerStars()
 while true do
 	iter = iter + 1
 	redraw()
 	os.sleep(0.05)
 	if iter % 14 == 0 then addPlot() end
 	if iter % 20 == 0 then forwardStars() end
 end