【策划架构】Lua对象池：烈火剑法特效数据表的租借复用

local function castFire(actor)
    local fx = {name = "烈火剑法", t = os.time()}  -- 每次新造
    setplayvar(actor, "FX", fx.name)
end                                     -- 用完即弃，GC狂扫

local pool, MAX = {}, 200
local function rentFx()
    return table.remove(pool) or {name = "烈火剑法"}
end
local function giveBack(fx)
    for k in pairs(fx) do fx[k] = nil end   -- 清空防脏数据
    if #pool < MAX then pool[#pool + 1] = fx end
end
local fx = rentFx()
fx.t = os.time()
setplayvar(actor, "FX", fx.name)
giveBack(fx)