public void Update()
{
Dictionary <DialogMessage, float> clone = new Dictionary <DialogMessage, float>(_timers);
foreach (KeyValuePair <DialogMessage, float> pair in clone)
{
float timer = pair.Value;
DialogMessage message = pair.Key;
timer -= Time.deltaTime;
if (timer <= 0)
{
_timers.Remove(message);
message.Close();
}
else
{
_timers[message] = timer;
}
}
}