private void TransitionToScene(string scene)
{
if (isSwitching)
{
return;
}
spawnManager.PreviousScene = SceneManager.GetActiveScene().name;
spawnManager.ClearCheckpoints();
isSwitching = true;
StopAllCoroutines(); // can still switch when fading out, so stop any lingering coroutines
StartCoroutine(TransitionRoutine(scene));
}