【进阶实战】野外科举：答题活动的场次与防作弊封装

local questionBank = {
    { q = "祖玛教主的据点是哪一层", opts = { "祖玛七层", "沃玛三层", "封魔谷" }, ans = 1 },
    { q = "裁决之杖的攻击上限通常是", opts = { "0-38", "0-30", "0-45" }, ans = 1 },
}
local function shuffleOpts(q)
    local order = {}
    for i = 1, #q.opts do
        order[i] = i
    end
    for i = #order, 2, -1 do
        local j = math.random(i)
        order[i], order[j] = order[j], order[i]
    end
    local opts, ans = {}, 0
    for newIdx, oldIdx in ipairs(order) do
        opts[newIdx] = q.opts[oldIdx]
        if oldIdx == q.ans then
            ans = newIdx
        end
    end
    return { q = q.q, opts = opts, ans = ans }
end
local function startRound(actor)
    actor = getplayerbyname(actor)
    local picked = {}
    for i = 1, 10 do
        picked[i] = shuffleOpts(questionBank[math.random(#questionBank)])
    end
    setplayvar(actor, "HUMAN", "QuizPaper", "active", 0)
    setplayvar(actor, "HUMAN", "QuizStart", os.time(), 1)
    sendmsg(actor, 1, "科举第一题已出，每题限时 20 秒。")
    return picked
end

local function isSuspicious(startTs, qCount)
    local used = os.time() - startTs
    return used < qCount * 2
end