How to limit the map so that the actor cannot go beyond its boundaries

[Evgenii190]

I read the documentation, but I could not find how to do it. Question: How to limit the map so that the actor cannot go beyond its boundaries

[kamranayub]

Hey! This would be logic you'd add to the actor, since there could be many different actors with all sorts of logic.

The way to accomplish it is by using the onPostUpdate hook and checking the world bounds (Engine.getWorldBounds()) vs. the actor's current position. There is an example of this in the Getting Started game with the Ball actor (it checks Engine.drawWidth which is the canvas draw width):

https://excaliburjs.com/docs/getting-started#creating-the-ball-with-actors