I'm experimenting with making NPCs shiver back and forth when I use my vacuum item on them. It's a pixel movement that jitters an entity left and right by 2px.
When I try it, it says: Error: Illegal direction 3 for sprite 'animals/seagull_trash2' in animation 'walking'
I'm guessing that using a movement on an NPC is "smart" and makes the NPC automatically change direction toward the movement and try to walk that way. Am I right? If so, is there an easy way to override it?
It's not a big deal, and I might just not do this in my game. It doesn't seem documented though, and kinda surprised me.
You are right, sprites of NPCs automatically take the direction of the NPC's movement. But there are two types of NPCs: usual NPCs, that have this behavior, and generalized NPCs, that have no automatic behavior. So just set your NPC as a generalized one (in the quest editor) and you will be fine.