【进阶实战】客栈歇息：下线回复体力的分段计费封装

local function checkIn(actor)
    local t0 = tonumber(getplayvar(actor, 0, "InnTime")) or 0
    if t0 ~= 0 then
        sendmsg(actor, 1, "已在歇息中，无需重复登记。")
        return
    end
    setplayvar(actor, 0, "InnTime", os.time(), 1)
    sendmsg(actor, 1, "已登记歇息，每 10 分钟回 2 点体力。")
end
local function checkOut(actor)
    local t0 = tonumber(getplayvar(actor, 0, "InnTime")) or 0
    if t0 == 0 then
        return
    end
    local mins = math.floor((os.time() - t0) / 600)
    if mins > 120 then
        mins = 120
    end
    local gain = mins * 2
    local sp = tonumber(getplayvar(actor, 0, "SP")) or 0
    setplayvar(actor, 0, "SP", math.min(sp + gain, 100), 0)
    setplayvar(actor, 0, "InnTime", 0, 1)
    sendmsg(actor, 1, "歇息 " .. mins .. " 分钟，恢复体力 " .. gain .. " 点。")
end

local function settleFee(mins)
    if mins <= 30 then
        return 0
    elseif mins <= 120 then
        return (mins - 30) * 100
    else
        return 9000
    end
end