さっきは随分と楽しそうだったな


I am reading through my first book in Japanese, Murakami, and came across a
sentence and I can't decide if it's a statement or question:

> さっきは随分と楽しそうだったな

I believe this can mean:

> "Looked like you were having a lot of fun!" _or_ "What happened to all that
> fun you were having?"




It means "You seemed to be having a lot of fun!" or "You seemed to be having a
lot of fun, huh?". As sentence-end particles, な and ね mildly seek agreement
like "huh?" in English, but that does not mean it's a true question that
expects an answer.

Depending on the context, this statement may be a sarcastic remark, in which
case your second translation may work, too. But it's an "implication" at most
rather than a literal translation.

