How do I trigger an event once every time it becomes true?

I've got an event where I want some npcs to run to a safe place every time the player gets near them. IF I use "Trigger once while true," they run away once, but never again. If I don't use it, they don't follow the pathfinding until after the player leaves their proximity. Ideas?

"Trigger once while true" should work fine for what you're needing. Any event you add it to should run once every time it's conditions go from false to true, so there may be something else going on with your events. Care sharing a capx, or at least a screenshot of your events?

http://imgur.com/iyKIKsv Here's a screen cap.

In event 18, there's probably some ambiguity about which peasant objects are involved causing the issue. Adding a "for each peasant" loop to the event may help. Here's an example:

Pathfinding Once While True

A Sprite object gets scared every time the mouse gets within 50 pixels, running to the house. They return to their original position after 5 seconds.

linkman2004, you are wonderful! Thanks so much, that fixes my problem exactly.