As part of a school assignment in the past year, my team and I created Apoca Force, a tower defense game where WAIFUs (World Apocalypse Intercepting Frontline Units) are deployed onto a battlefield to combat an undead horde. In this game, WAIFUs serve as the eponymous towers of the genre, but with a twist — by spending some resource, they can be moved after they are deployed.

To denote the areas that WAIFUs can walk on, we created an interface that highlighted walkable areas on the map when players decide to move their WAIFUs. This is what we ended up with:

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