Navigation mesh when an obstacle dissapear

Development Programming & Scripting AI
1

I’ve just started to learn Unreal Engine 4.26.2. To do it I’m developing an Arkanoid clone game. Now I’m implementing the monster that appears at the top of the screen but I don’t know how to move it.

Reading (a lot), I have found that I have to use a Nav Mesh Bound Volume. This volume takes up all the game area, including the bricks. These bricks are defined as NavArea_Obstacle in Area Class. I think I’m doing it correctly.

But, what happen when I brick disappear because the player has hit it with the ball? Do I need to use a Dynamic nav mesh?

2

Yes. Unless you implement custom logic with raytraces, you will need a dynamic Nav Mesh.

1 Like
3

Thanks for your answer.

Where can I find more information about how to use a Dynamic Nav Mesh? Yes, I’ve been searching but I haven’t found anything.

4

Just enable it in Project Settings/Navigation Mesh/Runtime Generation. You can tweak the generation settings later inside your RecastNavMesh actor.

1 Like
5

Using the Dynamic Nav Modifiers Only setting may be an option as well.
After that, you can use a NavModifierComponent to trigger navigation mesh updates in certain places.