SHIRAKATA Kentaro 0f36d7ac6e revert MAX_RADIUS change ...

On 59818fb, MAX_RADIUS was changed from 15 to 16 to intend to support
"radius 0".  But MAX_RADIUS doesn't means the range but outer bound of
the radius table, so it should not be changed, and this change led
possible out-of-bound access on view_from() and do_clear_area() in
vision.c.

This commit reverts the change and avoids the problem.

2021-10-21 08:48:23 -04:00

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