Redstone Rednet Game Controller

rednet.open("bottom")
id = 25
print("Activating controller...")
while true do
    local event = { os.pullEvent() }
    if event == "redstone_message" then
        if redstone.getInput("front")==true then
            rednet.send(id, "up")
        end
        if redstone.getInput("back")==true then
            rednet.send(id, "down")
        end
        if redstone.getInput("left")==true then
            rednet.send(id, "left")
        end
        if redstone.getInput("right")==true then
            rednet.send(id, "right")
        end
        if redstone.getInput("top")==true then
            rednet.send(id, "use")
        end
    end
end