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revert MAX_RADIUS change

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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.
This commit is contained in:
SHIRAKATA Kentaro
2021-10-21 19:43:45 +09:00
committed by nhmall
parent ed543d7832
commit 0f36d7ac6e
1 changed files with 1 additions and 1 deletions
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include/vision.h
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@@ -52,7 +52,7 @@
/*
* Circle information
*/
#define MAX_RADIUS 16 /* this is in points from the source */
#define MAX_RADIUS 15 /* this is in points from the source */
/* Use this macro to get a list of distances of the edges (see vision.c). */
#define circle_ptr(z) (&circle_data[(int) circle_start[z]])