【进阶实战】宠物口粮：饥饿度衰减与喂食节流封装

local function feedPet(actor)
    actor = getplayerbyname(actor)
    local last = tonumber(getplayvar(actor, "HUMAN", "FeedAt")) or 0
    if os.time() - last < 1800 then
        sendmsg(actor, 1, "白虎刚吃饱，喂食冷却中。")
        return
    end
    local hunger = tonumber(getplayvar(actor, "HUMAN", "PetHunger")) or 100
    if hunger >= 100 then
        sendmsg(actor, 1, "白虎很饱，无需喂食。")
        return
    end
    if not takeitem(actor, "兽粮", 1) then
        sendmsg(actor, 1, "需要 1 份兽粮，杂货店有售。")
        return
    end
    hunger = math.min(100, hunger + 40)
    setplayvar(actor, "HUMAN", "PetHunger", hunger, 1)
    setplayvar(actor, "HUMAN", "FeedAt", os.time(), 1)
    sendmsg(actor, 1, "白虎进食，饥饿度回升至 " .. hunger .. "。")
end

local function decayHunger(actor)
    actor = getplayerbyname(actor)
    local lastTick = tonumber(getplayvar(actor, "HUMAN", "PetTick")) or os.time()
    local hours = math.floor((os.time() - lastTick) / 3600)
    if hours <= 0 then
        return
    end
    local hunger = tonumber(getplayvar(actor, "HUMAN", "PetHunger")) or 100
    hunger = math.max(0, hunger - hours * 8)
    setplayvar(actor, "HUMAN", "PetHunger", hunger, 1)
    setplayvar(actor, "HUMAN", "PetTick", os.time(), 1)
    if hunger < 20 then
        sendmsg(actor, 1, "白虎饿得直叫，属性临时下降 30%，快喂兽粮！")
    end
end