public void Begin(PoolManager poolManager, DeadDogSignal deadSignal, RestartSignal restartSignal, TextManager displayText)
{
_poolManager = poolManager;
_displayText = displayText;
_deadSignal = deadSignal;
_deadSignal.Listen(stopCreation);
_restartSignal = restartSignal;
_restartSignal.Listen(startCreation);
}