【进阶实战】行会活动日历：行会活动的排期接口封装

local calendar = {}
local function scheduleEvent(actorName, startTs, hours, kind, note)
    local actor = getplayerbyname(actorName)
    local endTs = startTs + hours * 3600
    for _, e in pairs(calendar) do
        if startTs < e.endTs and endTs > e.startTs then
            sendmsg(actor, 1, "与活动【" .. e.kind .. "】时间重叠，请调整。")
            return nil
        end
    end
    local id = "EV" .. os.time()
    calendar[id] = { start = startTs, endTs = endTs,
        kind = kind, note = note, by = actorName }
    sendmsg(actor, 1, "活动已排期，编号 " .. id .. "。")
    return id
end
local function listWeek(actorName)
    local actor = getplayerbyname(actorName)
    local now = os.time()
    for id, e in pairs(calendar) do
        if e.start >= now and e.start <= now + 7 * 86400 then
            sendmsg(actor, 1, os.date("%m-%d %H:%M", e.start) ..
                " " .. e.kind .. " " .. e.note)
        end
    end
end

local function overlap(aS, aE, bS, bE)
    return aS < bE and bS < aE
end