【玩法设计】师门任务轮换池：每日五环的保底抽取与权重设计

local POOL = {
    fight = { { n = "讨伐半兽勇士", w = 30 }, { n = "清剿沃玛战士", w = 20 } },
    gather = { { n = "采集毒蛇胆", w = 40 }, { n = "挖纯度15黑铁", w = 25 } },
    run = { { n = "送信武氏", w = 50 }, { n = "代购金创药", w = 35 } },
}
local function pickOne(cat)
    local list, total = POOL[cat], 0
    for _, t in ipairs(list) do total = total + t.w end
    local r, acc = math.random(1, total), 0
    for _, t in ipairs(list) do
        acc = acc + t.w
        if r <= acc then return t.n end
    end
    return list[1].n
end

function buildDaily(actor)
    local tasks = { pickOne("fight"), pickOne("gather"), pickOne("run") }
    table.insert(tasks, pickOne("run"))
    table.insert(tasks, pickOne("fight"))
    setplayvar(actor, "HUMAN", "DAILY5", table.concat(tasks, "#"), 1)
    sendmsg(actor, 0, "今日师门任务已刷新，共5环")
end