From 554f5cd43ab4adb794edbf7fc7beb8cc21029ac0 Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pj@pehjota.net>
Date: Wed, 18 Aug 2021 17:45:06 -0400
Subject: char/enemy: Invert wall check logic

---
(limited to 'src/char')

diff --git a/src/char/enemy.c b/src/char/enemy.c
index b981da7..a7a1251 100644
--- a/src/char/enemy.c
+++ b/src/char/enemy.c
@@ -85,11 +85,13 @@ _mf_enemy_step(struct mf_char *c)
 			case MF_CHAR_DIR_R_: dx =  1; dy =  0; break;
 			default:             dx =  0; dy =  0; break;
 		}
-		if (!mf_maze_is_wall(c->maze, c->cur_x, c->cur_y, dx, dy)) {
-			/* Move */
-			c->new_dir = dirs[i];
-			return 0;
+		if (mf_maze_is_wall(c->maze, c->cur_x, c->cur_y, dx, dy)) {
+			/* Wall ahead; don't go this direction. */
+			continue;
 		}
+		/* Move */
+		c->new_dir = dirs[i];
+		return 0;
 	}
 
 	return 0;
--
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