From 467b20f5e2a5c1978db3a7387d5c466b3cc7db8a Mon Sep 17 00:00:00 2001
From: Jonathan G Rennison <j.g.rennison@gmail.com>
Date: Tue, 28 Feb 2023 18:59:48 +0000
Subject: [PATCH] Link graph: Fix tooltips with vertical link graph lines

See: https://github.com/OpenTTD/OpenTTD/issues/10522
---
 src/linkgraph/linkgraph_gui.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/linkgraph/linkgraph_gui.cpp b/src/linkgraph/linkgraph_gui.cpp
index 1420b52e14..45a90d5261 100644
--- a/src/linkgraph/linkgraph_gui.cpp
+++ b/src/linkgraph/linkgraph_gui.cpp
@@ -514,6 +514,8 @@ bool LinkGraphOverlay::ShowTooltip(Point pt, TooltipCloseCondition close_cond)
 		if ((link.Usage() > 0 || (_ctrl_pressed && link.capacity > 0)) &&
 				pt.x + 2 >= std::min(pta.x, ptb.x) &&
 				pt.x - 2 <= std::max(pta.x, ptb.x) &&
+				pt.y + 2 >= std::min(pta.y, ptb.y) &&
+				pt.y - 2 <= std::max(pta.y, ptb.y) &&
 				check_distance()) {
 
 			static char buf[1024];