【后端接口】装备鉴定：未鉴定装备的随机词条

---BOSS 掉落时生成词条（延迟揭示）
function genAffixes(item, bossTier)
    local pool = AFFIX_POOL[bossTier]
    item.affixCount = math.random(2, 4)
    item.affixSeed = math.random(1, 999999)
    item.identified = false
    setitemstate(item, 3, 1)
    return item
end

---鉴定时按种子揭示词条
function revealAffixes(actor, item)
    if item.identified then return item.affixes end
    math.randomseed(item.affixSeed)
    item.affixes = {}
    for i = 1, item.affixCount do
        item.affixes[i] = rollWeighted(AFFIX_POOL[item.tier])
    end
    item.identified = true
    recalcabilitys(actor)
    return item.affixes
end

local AFFIX_POOL = {
    { name = "攻击强化", weight = 2500, value = { 10, 30 } },
    { name = "暴击强化", weight = 1500, value = { 5, 15 } },
    { name = "吸血强化", weight = 800,  value = { 3, 8 } },
}
function affixGuarantee(item)
    local best = 0
    for _, a in ipairs(item.affixes) do
        best = math.max(best, a.weight)
    end
    if best < 1500 and item.tier >= 3 then
        item.affixes[1] = rollWeighted({ { name = "暴击强化", weight = 1 }, { name = "吸血强化", weight = 1 } })
    end
end