行会里程碑：集体目标的达成奖励

local function onDonate(actor, gold)
    TOTAL = TOTAL + gold            -- 只有总额，无里程碑记录
end

local MILE = {{need = 30000, item = "金币", cnt = 100},
    {need = 60000, item = "金币", cnt = 300},
    {need = 100000, item = "裁决之杖", cnt = 1}}
local DONE = {}
local function onDonate(actor, gold)
    TOTAL = TOTAL + gold
    for i, m in ipairs(MILE) do
        if not DONE[i] and TOTAL >= m.need then
            DONE[i] = os.time()
            giveitem(actor, m.item, m.cnt, 0,
                "里程碑" .. i .. "达成")
        end
    end
end