Multiple enemies of different sizes

Beginner Questions
#1

Hey, guys. I’ve just started a small project to learn how to use pathfinding with 2D.

I have multiple enemies of different sizes, and they all use the same grid for paths calculation. The big enemies are trying to squeeze between 2 obstacles, where they wont fit.

Should I create multiple grids for each enemy size or can I change pathfinding logic to take into account the enemy size?
Is there an easy way to generate different paths for enemies of different sizes?

#2

Hi

You can use
http://arongranberg.com/astar/docs/class_pathfinding_1_1_grid_graph.php#af156f09628f08d32091ea67e48e42b71

#3

Thanks! Missed that in documentation, sorry. Works cool btw, thanks!

Another question: is there any way to count other units on the scene as obstacles or create some moving obstacles? Do I need to update graph in each FixedUpdate?

#4

Hi

You cannot make other units count as obstacles (well, you can. Some have had success with it, you can search the forums, but I usually do not recommend it). Moving obstacles is not a problem however. Check out the “Terrain” example scene which has a moving obstacle on a grid graph (assuming you are using a grid graph this will work).