Guess complex shapes for collision.

I am trying to figure out how to get Construct to guess more complex shapes for collision. I made a winding road with a background. Basically I want the car to slow down if it moves off the winding road. Any suggestions?

Right click in the sprite editor on a collision point and select add point. You can drag the collision points around as well to finesse the shape.

Add point is always greyed out?

That means you're not right clicking on another point... The new point will be inserted half way in between the one you click on and the next one in a clockwise direction around the polygon.

Gotcha. Thanks ill try it

Well unfortunately it would just require too many points. I will have to try And hatch up another plan to try and figure this out. Just not sure what to do