Lightweight RVO, ECS and RVO obstacles no pathfinding graph

General Local Avoidance
1
  • A* version: [5.3.3]
  • Unity version: [2023]

I’m using the lightweight RVO coupled with RVO Simulator scripts to give my entities RVO capabilities. Those are the only 2 scripts I use in my project from this package. I don’t want to use any other pathfinding solution from the package because I got my own custom one.

RVO works fine with against other moving agents. But what about obstacles? Is there no support for RVO Obstacles? I see the old one has been deprecated in favor of navmesh. I’m not using a navmesh though. Is there no way for me to expose some of my own non agent entities to the RVO system, given their position and size only? This is a 2D grid based game, so my entities are always 1x1, 3x4 etc. I’d like my agents to be able to locally avoid those obstacles.

I did try coupling my pathfinding with the astar RVO system and it works, but it doesn’t look very realistic as mine simply follows a grid based path and leads to issues where multiple agents try to reach the same waypoint at the same time.

2

Hi

Currently, there’s no way to pass custom obstacles into the rvo system. It’s hardcoded to use the A* obstacles I’m afraid.

What you can do is to inform the system about collisions with walls. You can do this by setting the agentData.collisionNormal value.

See also SetCollisionNormal - A* Pathfinding Project

Setting this will make the agents behave much better when colliding with walls, though they will not be able to avoid walls before they hit them.