From: kwolekr <kwolekr@minetest.net>
Date: Sun, 23 Jun 2013 19:16:52 +0000 (-0400)
Subject: Cavegen: fix division by 0 with abnormal max tunnel diameter sizes
X-Git-Tag: 0.4.8~385
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=30d6d4c7335112f92408057b3bc7cf02ff645ca5;p=oweals%2Fminetest.git

Cavegen: fix division by 0 with abnormal max tunnel diameter sizes
---

diff --git a/src/cavegen.cpp b/src/cavegen.cpp
index 01543252a..8e6798586 100644
--- a/src/cavegen.cpp
+++ b/src/cavegen.cpp
@@ -70,7 +70,7 @@ void CaveV6::makeCave(v3s16 nmin, v3s16 nmax, int max_stone_height) {
 	//(this should be more than the maximum radius of the tunnel)
 	const s16 max_spread_amount = MAP_BLOCKSIZE;
 	s16 insure = 10;
-	s16 more = max_spread_amount - max_tunnel_diameter / 2 - insure;
+	s16 more = MYMAX(max_spread_amount - max_tunnel_diameter / 2 - insure, 1);
 	ar += v3s16(1,0,1) * more * 2;
 	of -= v3s16(1,0,1) * more;