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Enemy FOV with walls study

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Jason
Labbe
Another study with FOV but now you can hide behind walls. I used a few resources to get it at this point: - https://www.youtube.com/watch?v=73Dc5JTCmKI - https://legends2k.github.io/2d-fov/design.html - http://ncase.me/sight-and-light/ Controls: - Click and drag end points of walls to move them. - Hold up & down arrow keys to adjust the fov's angle. - Press space to toggle debug drawing.
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