帮会攻城战：攻城器械的战前筹备

local SIEGE = {
    {name = "云梯", wood = 300, stone = 100},
    {name = "冲车", wood = 500, stone = 200},
    {name = "投石机", wood = 800, stone = 500},
}
local function buildSiege(actor, guild, idx)
    local s = SIEGE[idx]
    if s == nil then return end
    setsysvarex("siegeW_" .. guild,
        (getsysvar("siegeW_" .. guild) or 0) + s.wood)
    setsysvarex("siegeS_" .. guild,
        (getsysvar("siegeS_" .. guild) or 0) + s.stone)
    sendmsg(actor, 1, s.name .. " 建造进度更新")
end

local function querySiege(actor, guild)
    for i, s in ipairs(SIEGE) do
        sendmsg(actor, 1, s.name .. " 材料 "
            .. (getsysvar("siegeW_" .. guild) or 0) .. "/"
            .. s.wood)
    end
end