From: Christian Heller <c.heller@plomlompom.de>
Date: Sat, 6 Sep 2014 01:08:31 +0000 (+0200)
Subject: Server: Minor improvements to mv_yx_in_dir_legal().
X-Git-Tag: tce~636
X-Git-Url: https://plomlompom.com/repos/%7B%7Bdb.prefix%7D%7D/static/%7B%7B%20web_path%20%7D%7D/decks/ledger?a=commitdiff_plain;h=adf5091e53c03efcda65dfb08dbc9d0bc588111e;p=plomrogue

Server: Minor improvements to mv_yx_in_dir_legal().
---

diff --git a/src/server/map.c b/src/server/map.c
index bc07c98..a5a189d 100644
--- a/src/server/map.c
+++ b/src/server/map.c
@@ -193,14 +193,14 @@ extern uint8_t mv_yx_in_dir_legal(char dir, struct yx_uint8 * yx)
 {
     static int8_t wrap_west_east   = 0;
     static int8_t wrap_north_south = 0;
-    char * err = "Too much wrapping in mv_yx_in_dir_wrap().";
-    exit_err(   INT8_MIN == wrap_west_east || INT8_MIN == wrap_north_south
-             || INT8_MAX == wrap_west_east || INT8_MAX == wrap_north_south, err);
     if (!yx)
     {
         wrap_west_east = wrap_north_south = 0;
         return 0;
     }
+    char * err = "Too much wrapping in mv_yx_in_dir_legal().";
+    exit_err(   INT8_MIN == wrap_west_east || INT8_MIN == wrap_north_south
+             || INT8_MAX == wrap_west_east || INT8_MAX == wrap_north_south, err);
     struct yx_uint8 original;
     original.y = yx->y;
     original.x = yx->x;