累计充值奖励：充值档位的里程碑领取

; recharge.txt 累充里程碑
[档1] 金额=100   礼包=4101
[档2] 金额=500   礼包=4102
[档3] 金额=2000  礼包=4103

local TIERS = {100, 500, 2000}
local function claimRecharge(actor)
    local total = getplayvar(actor, "rechargeTotal") or 0
    local claimed = getplayvar(actor, "rechargeClaim") or 0
    for i = 1, #TIERS do
        if total >= TIERS[i] and claimed < i then
            setplayvar(actor, "rechargeClaim", i)
            giveitem(actor, 4100 + i, 1)
            sendmsg(actor, 1, "领取 " .. TIERS[i] .. " 元档礼包")
            return
        end
    end
    sendmsg(actor, 1, "暂无可领档位")
end