From c173c90827d9686e95b82b30694bf831db29f588 Mon Sep 17 00:00:00 2001
From: polandar <1359104+polandar@users.noreply.github.com>
Date: Wed, 2 Oct 2019 19:13:44 +0100
Subject: [PATCH] Fix a bug in background rendering

Previously had much worse performance
---
 flyingsnake/__main__.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/flyingsnake/__main__.py b/flyingsnake/__main__.py
index 7b2cada..0a55b34 100644
--- a/flyingsnake/__main__.py
+++ b/flyingsnake/__main__.py
@@ -151,7 +151,7 @@ def flyingsnake(input_file: str,
         edge_of_rock = world.size.y - 192
         if max_y > world.cavern_level and min_y <= edge_of_rock:
             rock_y = min(edge_of_rock - min_y, height)
-            draw.rectangle(((0, curr_y), (width, edge_of_rock + 1)), tuple(colors["Globals"]["Rock"]))
+            draw.rectangle(((0, curr_y), (width, rock_y)), tuple(colors["Globals"]["Rock"]))
             curr_y = rock_y + 1
         if max_y > edge_of_rock:
             draw.rectangle(((0, curr_y), (width, height)), tuple(colors["Globals"]["Hell"]))