经脉激活：逐段点开属性节点

-- 错误：状态键带日期，隔天全部归零
setplayvar(p, "mer_" .. os.date("%Y%m%d"), 1)

local NAMES = {"任", "督", "带", "冲"}
local COST = 200
local function activateNode(p, idx)
    if idx > 1
        and (getplayvar(p, "mer_" .. (idx - 1)) or 0) ~= 1 then
        sendmsg(p, 1, "先激活前一段经脉")
        return
    end
    if (getplayvar(p, "qi") or 0) < COST then
        sendmsg(p, 1, "真气不足")
        return
    end
    setplayvar(p, "qi", getplayvar(p, "qi") - COST)
    setplayvar(p, "mer_" .. idx, 1)
    addAttr(p, 30)
    sendmsg(p, 1, NAMES[idx] .. " 脉已激活")
end