how do you make actors do stuff on their own? + other stuff

[j2graves]

I want to make actors that will walk around and do stuff on their own without having to press a key. and I don't want them to repeat the same motion over and over. this would be very useful for making boss actors I think. also, how do you make something happen only when your actor collides with something AND a key is pressed? PLEASE HELP!

[Troodon]

The thing you described is AI which sometimes takes time and trying. Basically you should control your characters every move with a variable or with timer(s).
For the 2nd thing, check if the key is pressed in the collision. Collision any side of ice-cream -> if key is down: something happens.
Sorry I don't remember the key down checking system. It was something like:
if (char[s] == 1) {...}

[j2graves]

Could someone please give me some more information?