otclient-redemption/modules/corelib/objectpool.lua

ObjectPool = {}
ObjectPool.__index = ObjectPool

function ObjectPool.new(createFunc, resetFunc)
    return setmetatable({
        create = createFunc,
        reset = resetFunc,
        pool = {}
    }, ObjectPool)
end

function ObjectPool:get()
    local obj = table.remove(self.pool)
    if not obj then
        obj = self.create()
    end
    return obj
end

function ObjectPool:release(obj)
    if self.reset then
        self.reset(obj)
    end
    table.insert(self.pool, obj)
end

function ObjectPool:clear()
    self.pool = {}
end