From 613c90e78f9847a86701019936473ce4ab5165d5 Mon Sep 17 00:00:00 2001
From: Jonathan G Rennison <j.g.rennison@gmail.com>
Date: Sun, 7 Aug 2022 00:11:52 +0100
Subject: [PATCH] Fix GetClosestIndustry with invalid industry type when using
 cache

---
 src/newgrf_industries.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/newgrf_industries.cpp b/src/newgrf_industries.cpp
index 1e45bbe921..35a7777691 100644
--- a/src/newgrf_industries.cpp
+++ b/src/newgrf_industries.cpp
@@ -98,6 +98,7 @@ IndustryLocationDistanceCache *IndustryLocationDistanceCache::instance = nullptr
 
 static uint32 GetClosestIndustry(TileIndex tile, IndustryType type, const Industry *current)
 {
+	if (type >= NUM_INDUSTRYTYPES) return UINT32_MAX;
 	if (IndustryLocationDistanceCache::instance != nullptr) {
 		IndustryLocationDistanceCache *cache = IndustryLocationDistanceCache::instance;
 		if (!cache->initialised) {