From be8c84f1c1333d1f81e4492c7883ec07eb4bbd33 Mon Sep 17 00:00:00 2001
From: duncanspumpkin <duncans_pumpkin@hotmail.co.uk>
Date: Mon, 11 Apr 2016 20:04:03 +0100
Subject: [PATCH] Fix grass growth mistake

Nibbles are only 4 bits not 8
---
 src/world/map.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/world/map.c b/src/world/map.c
index af74db0907..366de4feed 100644
--- a/src/world/map.c
+++ b/src/world/map.c
@@ -4285,7 +4285,7 @@ static void map_update_grass_length(int x, int y, rct_map_element *mapElement)
 			// Grow grass
 
 			// Check interim grass lengths
-			uint8 lengthNibble = (mapElement->properties.surface.grass_length & 0xF0) >> 8;
+			uint8 lengthNibble = (mapElement->properties.surface.grass_length & 0xF0) >> 4;
 			if (lengthNibble < 0xF) {
 				mapElement->properties.surface.grass_length += 0x10;
 			} else {