Generating a grid graph for a programmatic 2d map

Beginner Questions
#1

Hello,

I am currently looking to generate a graph for a runtime-generated and player-manipulatable tile map (not a Unity tilemap, its a custom data structure).

My game is 2d and my tiles are all uniform in shape, so I was thinking that I could create a gridGraph when I create the game, and when tiles are generated/modified to add them as a node and set if they are walkable or not based on type. Its worth noting that I do not use physics or colliders.

So I am wondering two things - one is does this sound like a feasible use of this A* project? And if so - how do I go about setting attributes on the grid graph within code such as 2d, turning off collisions, and the like? I see how to set the dimensions, but I may be overlooking sections of the docs outlining how to set these other attributes.

Thank you very much!

#2

Hi

Sorry for the late reply.
Yes, this is feasible.

Here you can find information about how to create a graph during runtime: https://arongranberg.com/astar/docs/runtimegraphs.html
Here you can read about how to set the node data: https://arongranberg.com/astar/docs/graph-updates.php#scripting

If you use the beta version you could alternatively create a custom grid graph rule, which would make things like graph updates work out of the box: https://www.arongranberg.com/astar/documentation/dev_4_3_38_f6e479ec/gridruleswrite.html