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tetris: Use arc4random_uniform instead of modulo for better randomness

This commit is contained in:
nia 2020-07-21 02:42:05 +00:00
parent 970d926d53
commit 6ad85e2cf9
2 changed files with 3 additions and 4 deletions
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3
games/tetris/tetris.c
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@ -1,4 +1,4 @@
/* $NetBSD: tetris.c,v 1.32 2016/03/03 21:38:55 nat Exp $ */
/* $NetBSD: tetris.c,v 1.33 2020/07/21 02:42:05 nia Exp $ */
/*-
* Copyright (c) 1992, 1993
@ -207,7 +207,6 @@ main(int argc, char *argv[])
scr_init();
setup_board();
srandom(getpid());
scr_set();
pos = A_FIRST*B_COLS + (B_COLS/2)-1;

4
games/tetris/tetris.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: tetris.h,v 1.15 2016/03/03 21:38:55 nat Exp $ */
/* $NetBSD: tetris.h,v 1.16 2020/07/21 02:42:05 nia Exp $ */
/*-
* Copyright (c) 1992, 1993
@ -130,7 +130,7 @@ struct shape {
};
extern const struct shape shapes[];
#define randshape() (&shapes[random() % 7])
#define randshape() (&shapes[arc4random_uniform(7)])
extern const struct shape *nextshape;