View difference between Paste ID: jnYSV4SE and j7fzJPqv

 os.loadAPI("f") -- a monitor API made by myself, it makes my life easier
 os.loadAPI("getInput") -- search_bar
 local p = peripheral.find("draconic_chest") -- can change for "chest" instead of "draconic_chest"
 local m = peripheral.find("monitor") -- running on a monitor
 m.setTextScale(1)
 local list_items,items = {},{}
 local a,b,c = 1,1,1
 local selected = 0
 local side = "west" -- 2nd chest direction from 1st chest
 local chestSize = p.getInventorySize()
 local w,h = m.getSize()
 
 local bg = window.create(m,1,1,w,h)
 local list = window.create(m,1,2,w*3/5-1,chestSize)
 local up_bar = window.create(m,1,1,w,1)
 local down_bar = window.create(m,1,h,w,h)
 local scroll_bar = window.create(m,w*(3/5),2,1,h-1)
 local bg2 = window.create(m,w*(3/5)+1,2,w,h-1)
 
 function reset()
   bg.setBackgroundColor(colors.black)
   bg.clear()
   list.setBackgroundColor(colors.black)
   list.clear()
   up_bar.setBackgroundColor(colors.lightGray)
   up_bar.clear()
   down_bar.setBackgroundColor(colors.lightGray)
   down_bar.clear()
   scroll_bar.setBackgroundColor(colors.lightGray)
   scroll_bar.clear()
   bg2.setBackgroundColor(colors.gray)
   bg2.clear()
   f.centerText(up_bar,1,"selectionner une destination","black")
   f.cprint(down_bar,1,1,"dernier tp : ","black")
   f.cprint(down_bar,13,1,last_dest,"blue","lightGray")
   f.cprint(scroll_bar,1,1,"^","black","gray")
   f.cprint(scroll_bar,1,h-2,"v","black","gray")
-  l,m = bg2.getSize()
+  l,q = bg2.getSize()
-  print(l," ",m)
+  print(l," ",q)
-  xb1,yb1,x2b1,y2b1 = f.drawBox(bg2,2,m/2-1,l-2,m/2+1,"lightGray")
+  xb1,yb1,x2b1,y2b1 = f.drawBox(bg2,2,q/2-1,l-2,q/2+1,"lightGray")
 end
 
 function pulse()
   redstone.setAnalogOutput("right",15)
   sleep(0.5)
   redstone.setAnalogOutput("right",0)
   local last_dest = "none"
 end
 
 function getItems()
   b = 1
   items = {}
   if chestSize ~= nil then
     for a=1,chestSize do
       list_items[a] = p.getStackInSlot(a)
       if list_items[a] ~= nil and list_items[a].name == "teleporterMKI" then
         items[b] = {}
         items[b][1] = a
         items[b][2] = list_items[a].display_name
         b = b + 1
       end
     end
   end
   table.sort(items, function(a, b) return a[2] < b[2] end)
   table.insert(items,1,{1,">>> retour au Spawn <<<","spawn"})
   if display == nil then display = items end
 end
 
 function list_display()
   for c=1,#display do
     if c == selected then
       f.drawLine(list,1,c,w,"gray")
       f.centerTextRight(list,c,"ouvrir","white")
     else
       list.setBackgroundColor(colors.black)
     end
     if display[c][3] == nil then
       f.cprint(list,1,c,display[c][2],"blue")
     elseif display[c][3] == "spawn" then
       f.centerText(list,c,display[c][2],"cyan")
     end
   end
 end
 
 function scroll(direction)
   local x,y = list.getPosition()
   if direction == "up" and y <=1 then
     list.reposition(1,y+2)
   elseif direction == "down" and y+#items > h-1 then
     list.reposition(1,y-2)
   end
 end
 
 function search()
   bg2.setCursorPos(1,1)
   word = getInput.read(bg2,30)
   display = {}
   for i,v in pairs(items) do
     if string.find(v[2],word) ~= nil then
       table.insert(display,v)
     end
   end
 end
 
 pulse()
 
 while true do
   reset()
   getItems()
   list_display()
   down_bar.redraw()
   up_bar.redraw()
   x,y = list.getPosition()
   j,k = scroll_bar.getPosition()
   event,p1,p2,p3,p4,p5 = os.pullEvent()
   if event == "monitor_touch" then
     if p3-y+1 == selected and display[selected] ~= nil and p2 < j-1 then
       up_bar.clear()
       f.centerText(up_bar,1,"ouverture...","black")
       pulse()
       p.pushItem(side,display[selected][1])
       last_dest = display[selected][2]
       getItems()
       close = os.startTimer(3)
     elseif p3 > 1 and p2 < j-1 then
       selected = p3-y+1
     elseif p3 == 2 and p2 == j then
       scroll("up")
     elseif p3 == h-1 and p2 == j then
       scroll("down")
     else
       search()
     end
   end
   if event == "timer" and p1 == close then
     pulse()
   end
 end