【进阶实战】玩法开关：功能灰度名单的动态管理

local FEATURE = "HomeFish"
local function grayAdd(actor, targetName)
    actor = getplayerbyname(actor)
    local list = tostring(getsysvar("Gray_" .. FEATURE) or "")
    if string.find(list, targetName, 1, true) then
        sendmsg(actor, 1, targetName .. " 已在灰度名单。")
        return
    end
    local merged = list == "" and targetName or (list .. "|" .. targetName)
    setsysvarex("Gray_" .. FEATURE, merged, 1)
    sendmsg(actor, 1, targetName .. " 已加入家园钓鱼灰度。")
end
local function grayHas(targetName)
    local list = tostring(getsysvar("Gray_" .. FEATURE) or "")
    return string.find(list, targetName, 1, true) ~= nil
end

local function openEntry(actor)
    actor = getplayerbyname(actor)
    if grayHas(tostring(actor)) then
        sendmsg(actor, 1, "家园钓鱼已对该账号开放，祝渔获满仓。")
    else
        sendmsg(actor, 1, "家园钓鱼灰度测试中，敬请期待。")
    end
end