From 39683e0362a63ecbffc289b1e45d3e10106fbc58 Mon Sep 17 00:00:00 2001
From: garak <garakmon@gmail.com>
Date: Mon, 29 Jul 2019 14:42:28 -0400
Subject: use more accurate metatile collision expression

---
 src/fieldmap.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'src/fieldmap.c')

diff --git a/src/fieldmap.c b/src/fieldmap.c
index 4b5149878..8e24e3b9e 100644
--- a/src/fieldmap.c
+++ b/src/fieldmap.c
@@ -382,13 +382,13 @@ u8 MapGridIsImpassableAt(int x, int y)
         i = (x + 1) & 1;
         i += ((y + 1) & 1) * 2;
         block = gMapHeader.mapLayout->border[i];
-        block |= 0xc00;
+        block |= METATILE_COLLISION_MASK;
     }
-    if (block == 0x3ff)
+    if (block == METATILE_ID_UNDEFINED)
     {
         return 1;
     }
-    return (block & 0xc00) >> 10;
+    return (block & METATILE_COLLISION_MASK) >> 10;
 }
 
 u32 MapGridGetMetatileIdAt(int x, int y)
-- 
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