function onUse(self)
    -- Message name: MSG_NAME
    -- Content of the message: 1
    vci.message.Emit("send_box_state","addforce_on")
end

function onUnuse(use)
    -- Message name: MSG_NAME
    -- Content of the message: 1
    vci.message.Emit("send_box_state","addforce_off")
end