Is there any way to add obstacles dynamically on a 2D grid? about yuka HOT 3 CLOSED

Thank you for your quick answer and your advice. I finally manage to achieve what I was looking for, I'm closing the issue!

from yuka.

Then, I tried to simply update manually the cost of certain nodes' edges so that they would be less likely to be consider better suited for the path. It works but I wonder if there is a better approach?

This approach is actually good! I know from older strategy games that they use the same technique to guide game entities over the map. Meaning they represent the entire map as a grid and assign different costs to the edges depending on the terrain's quality. E.g. roads and ways have low costs, fields have mid costs and stuff like rivers, mud or dangerous terrain (think of a mine field) high costs (like Infinity).

Depending on how your game is structured I would start with this approach and see how good it works.

from yuka.

BTW: Of course you could change the structure of the grid depending on the terrain but updating edge costs is more flexible. Think of a bridge in a strategy game. If it is destroyed, game entities should not pass it. That can be achieved by assigning a high cost to the respective edge so game entities will try to find a way around it. When the bridge is repaired (assuming the game provides such a mechanic), the original edge cost is restored.

from yuka.