From f0ec7a76938b63f58cac2c9b3a29deb7bfa11fdf Mon Sep 17 00:00:00 2001
From: Jonathan G Rennison <j.g.rennison@gmail.com>
Date: Wed, 24 Jan 2024 23:17:23 +0000
Subject: [PATCH] Add function for whether OpenTTD is running headlessly

Always returns true for dedicated builds
Returns _network_dedicated otherwise
---
 src/stdafx.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/stdafx.h b/src/stdafx.h
index 30935ddb9b..8a76b61b17 100644
--- a/src/stdafx.h
+++ b/src/stdafx.h
@@ -546,4 +546,14 @@ inline void free(const void *ptr)
 
 #define SINGLE_ARG(...) __VA_ARGS__
 
+#if defined(DEDICATED)
+inline constexpr bool IsHeadless() { return true; }
+#else
+inline bool IsHeadless()
+{
+	extern bool _network_dedicated;
+	return _network_dedicated;
+}
+#endif
+
 #endif /* STDAFX_H */