From 28db4ccb3e2ee071d561e6ab9f075e7deb65fdb6 Mon Sep 17 00:00:00 2001
From: nia <nia@NetBSD.org>
Date: Tue, 21 Jul 2020 02:42:05 +0000
Subject: tetris: Use arc4random_uniform instead of modulo for better
 randomness

---
 tetris/tetris.c | 3 +--
 tetris/tetris.h | 4 ++--
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/tetris/tetris.c b/tetris/tetris.c
index 5a41c158..286e7c45 100644
--- a/tetris/tetris.c
+++ b/tetris/tetris.c
@@ -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;
diff --git a/tetris/tetris.h b/tetris/tetris.h
index 7d18a2d1..8e1479f1 100644
--- a/tetris/tetris.h
+++ b/tetris/tetris.h
@@ -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;
 
-- 
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