Intent vs Actual

intended (mistakingly) a Pesach offering on Shabbos, exempt form sin offering if the sacrifice resembled a Pesach, unblemished male, one year old, sacrificed at proper time

intended to eat kosher fat, it was non kosher, liable for sacrifice, intended to eat non kosher, it was kosher, no sacrifice, reason

intended to eat pork which was actually kosher meat

proper kosher slaughter with intent for idol worship use

thought it was weekday, slaughtered animal, it was Shabbos, he is liable, thought to sacrifice of Pesach, it was a peace offering, he is exempt, what is the difference?