Scanner

local Buffer= {}
local Object= {}
local goal= {"computer","monitor","drive","printer"}
local limit= 20000
local X,Y= term.getSize()

Object[1]= {}
Object[1].stage= 0
Object[1].limit= 10

function main(update)
   scanner(update)
end

function scanner(update)
   if (update) then
      gCount,count= 0,0
      while true do
         for q=1,#goal do
            h= peripheral.wrap(goal[q].."_"..gCount)
            if (h ~= nil) then
               Buffer[#Buffer+1]= {}
               Buffer[#Buffer].name= goal[q].."_"..gCount
            end
         end
         gCount= gCount+1
         count= count+1
         per= gCount/(limit/(X-8))
         Object[1].stage= math.ceil(per)
         if (count >= 500) then draw("Scanning",".",1,1)  count= 0 sleep(0) end
         if (gCount >= limit) then gCount= 0 Buffer= {} end
      end
   else
   end
end

function draw(Text,simbol,x,y)
   term.clear()
   term.setCursorPos(x,y)
   io.write(Text)
   for i=1,Object[1].stage do
      io.write(simbol)
   end
   print()
   --print(Object[1].stage)
   for i=1,X do
      io.write("_")
   end
   if (#Buffer > 0) then
      for i=1,#Buffer do
         print(Buffer[i].name)
      end
   end
end

main(true)