Method set_pre_bgm

src/script.rs:109–111

(&mut self, pre_bgm: PreBgm)

    pub(crate) fn set_pre_voice(&mut self, pre_voice: (SharedString, SharedString)) {
        self.pre_voice = Some(pre_voice);
    }

    pub(crate) fn set_pre_bg(&mut self, pre_bg: Option<Command>) {
        self.pre_bg = pre_bg;
    }