print( "-- GATE COMPUTER --" )
print( "Computer ID: " .. os.computerID() )

rednet.open("back")

-- white = up
-- orange = down
-- blue = back
-- yellow = forward

local function FireMotor( col )
    rs.setBundledOutput("left", colours[col])
    sleep(0.4)
    rs.setBundledOutput("left", 0)
    sleep(0.4)
end

local function OpenGate()
    print( "Opening gate" )
    for i=1, 3 do
        FireMotor("yellow")
    end
    for i=1, 3 do
        FireMotor("white")
    end
end

local function CloseGate()
    print( "Closing gate" )
    for i=1, 3 do
        FireMotor("orange")
    end
    for i=1, 3 do
        FireMotor("lightBlue")
    end
end

while true do
    local sender, msg, dist = rednet.receive()
    if (msg == "open_gate") then
        OpenGate()
    end
    if (msg == "close_gate") then
        CloseGate()
    end
end