From 73816dce938a82ec2a50659eee47b4d348e6d9fa Mon Sep 17 00:00:00 2001
From: Anders Jenbo <anders@jenbo.dk>
Date: Wed, 4 Dec 2019 23:45:29 +0100
Subject: [PATCH] Update drlg_l3.cpp

---
 Source/drlg_l3.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Source/drlg_l3.cpp b/Source/drlg_l3.cpp
index 75692b16d..5c0a85268 100644
--- a/Source/drlg_l3.cpp
+++ b/Source/drlg_l3.cpp
@@ -1223,11 +1223,13 @@ static void DRLG_L3Wood()
 				rt = random_(0, 2);
 				if (rt == 0) {
 					y1 = j;
+					// BUGFIX: Check `y1 >= 0` first
 					while (WoodVertU(i, y1)) {
 						y1--;
 					}
 					y1++;
 					y2 = j;
+					// BUGFIX: Check `y2 < DMAXY` first
 					while (WoodVertD(i, y2)) {
 						y2++;
 					}