Opencomputers HBM 1.12.2 Minecraft rocketlaunch

local component = require("component")
local sides = require("sides")
local computer = require("computer")

local function delay(seconds)
    local deadline = computer.uptime() + seconds
    repeat
        computer.pullSignal(deadline - computer.uptime())
    until computer.uptime() >= deadline
end

if not component.isAvailable("redstone") then
    print("Error: Redstone component not found!")
    return
end

local redstone = component.redstone

print("Initiate 10-second launch sequence? (y/n)")
local answer = io.read():lower():sub(1,1)

if answer ~= "y" then
    print("Launch aborted!")
    return
end

print("Starting countdown...")
for i = 10, 1, -1 do
    print(i .. "...")
    delay(1)
end

print("LIFTOFF!")
redstone.setOutput(sides.back, 15)
delay(0.5)
redstone.setOutput(sides.back, 0)

print("Launch sequence completed!")