From 13ab9c1adc8189bf4a74801efe57311b2a591caa Mon Sep 17 00:00:00 2001
From: Peter Nelson <peter1138@openttd.org>
Date: Sun, 21 Sep 2025 13:41:23 +0100
Subject: [PATCH] Fix 6e90b828c6: Off-by-one in Rect::CentreTo. (#14643)

* Rect right/bottom are inclusive so -1 must be taken from width/height.
* Misnamed variable, `new_right` is actually `new_top`.
---
 src/core/geometry_type.hpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/core/geometry_type.hpp b/src/core/geometry_type.hpp
index b3400c2cc3..f5bb66f554 100644
--- a/src/core/geometry_type.hpp
+++ b/src/core/geometry_type.hpp
@@ -261,8 +261,8 @@ struct Rect {
 	[[nodiscard]] inline Rect CentreTo(int width, int height) const
 	{
 		int new_left = CentreBounds(this->left, this->right, width);
-		int new_right = CentreBounds(this->top, this->bottom, height);
-		return {new_left, new_right, new_left + width, new_right + height};
+		int new_top = CentreBounds(this->top, this->bottom, height);
+		return {new_left, new_top, new_left + width - 1, new_top + height - 1};
 	}
 };