【框架设计】BOSS阶段时间轴：阶段事件的框架化播报设计

local TIMELINE = {
    { hp = 70, text = "沃玛教主发出了愤怒的咆哮！" },
    { hp = 40, text = "沃玛教主进入狂暴状态！" },
    { hp = 15, text = "沃玛教主摇摇欲坠，全力以赴！" },
}
local fired = {}
local function checkStage(actor, hpPct)
    for i, st in ipairs(TIMELINE) do
        if hpPct <= st.hp and fired[i] ~= true then
            fired[i] = true
            sendcentermsg(st.text)
            playsound(actor, "boss_stage" .. i .. ".wav")
        end
    end
end

local function resetTimeline()
    fired = {}
    setsysvar("BOSS_STAGE_TS", os.time())
end