Improper boost, have I damaged my truck?

I was boosting my truck a 2001 Ford F-150 with a presumably dead battery with a 2003 Hyundai Accent, the cables were connected properly to the Hyundai but backwards to the Ford. There was no large spark when I connected the cables just regular sparking, I tried turning the truck over and nothing happened so I got out to look at the cables and they were smoking at the terminals so I removed them, I reconnected them on the fords battery to the right terminals, got in the truck and it started, I removed the cables and the truck remained running, I got in the truck and the aftermarket reason was working along with the dash lights and the electronic four wheel drive switch. After letting the truck run for 15 minutes I turned it off and tried starting it again and it was completely dead. They Hyundai still starts and runs as it did before. I was wondering if you think I did any damage to the truck or if you think the batter is just pooched. This all happened two hours ago, thanks anybody for their prognosis.

The fusible link and/or alternator is likely blown in the truck

You may have fried a fuse or the alternator and battery on the Ford. Surprised you didn't mess up the Hyundai as well.

You likely totally fried your already weak battery in the truck by connecting it backwards. Even if it was still good, you would need to run the truck longer than just idling for 15 minutes to charge it. But your battery was probably shot anyway, so get a new battery.