public List<PlayerCoolDownValueHolder> getAllCoolDowns() {
        List<PlayerCoolDownValueHolder> ret = new ArrayList<PlayerCoolDownValueHolder>();
        for (MapleCoolDownValueHolder mcdvh : coolDowns.values()) {
            ret.add(new PlayerCoolDownValueHolder(mcdvh.skillId, mcdvh.startTime, mcdvh.length));
        }
        return ret;
    }