Good baseline size for an A* Search grid?

Posted by Jo-Herman Haugholt on Game Development See other posts from Game Development or by Jo-Herman Haugholt
Published on 2011-11-21T08:35:46Z Indexed on 2011/11/21 10:22 UTC
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path-finding

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tilemap

I'm working on a grid based game/prototype with a continuous open map, and are currently considering what size to make each segment. I've seen some articles mention different sizes, but most of them is really old, so I'm unsure how well they map to the various platforms and performance demands common today.

As for the project, it's a hybrid of 2D and 3D, but for path-finding purposes, the majority of searches would be approximately 2D. From a graphics perspective, the minimum segment size would be 64x64 in the XZ plane to minimize loaded segments while ensuring full screen coverage. I figure pathfinding would be an important indicator of maximum practical size.

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