Projector Code

local projectors = {}
for i = 1, 4 do
  local p = peripheral.wrap("hybridprojector_"..(i-1))
  if p then
    p.setPeriod(0)
    p.setPosition(0, 0, 1.5)
    p.setScale(2.5, 0)
    projectors[i] = p
  end
end

p2 = peripheral.wrap("right")
while true do
  stacks = p2.getAllStacks()
  count = math.min(#stacks, 4)
  for i = 1, count do
    stack = stacks[i].all()
    local p = projectors[i]
    if p then
      p.setImage(stack.id.."@"..stack.dmg)
    end
  end
  os.sleep(5)
end