From 0fa37bcad97669a2216e62ba72cba37e5383479a Mon Sep 17 00:00:00 2001
From: Jonathan G Rennison <j.g.rennison@gmail.com>
Date: Sun, 1 Nov 2020 00:26:07 +0000
Subject: [PATCH] Add function to get GRF ID of string ID

---
 src/newgrf_text.cpp | 10 ++++++++++
 src/strings_func.h  |  1 +
 2 files changed, 11 insertions(+)

diff --git a/src/newgrf_text.cpp b/src/newgrf_text.cpp
index be68c47e44..06dbd3f932 100644
--- a/src/newgrf_text.cpp
+++ b/src/newgrf_text.cpp
@@ -1078,3 +1078,13 @@ uint RemapNewGRFStringControlCode(uint scc, char *buf_start, char **buff, const
 			return 0;
 	}
 }
+
+uint32 GetStringGRFID(StringID string)
+{
+	switch (GetStringTab(string)) {
+		case TEXT_TAB_NEWGRF_START:
+			return _grf_text[GetStringIndex(string)].grfid;
+		default:
+			return 0;
+	}
+}
diff --git a/src/strings_func.h b/src/strings_func.h
index b359a18dd7..a561ae2a33 100644
--- a/src/strings_func.h
+++ b/src/strings_func.h
@@ -174,6 +174,7 @@ extern StringParameters _global_string_params;
 char *GetString(char *buffr, StringID string, const char *last);
 char *GetStringWithArgs(char *buffr, StringID string, StringParameters *args, const char *last, uint case_index = 0, bool game_script = false);
 const char *GetStringPtr(StringID string);
+uint32 GetStringGRFID(StringID string);
 
 uint ConvertKmhishSpeedToDisplaySpeed(uint speed);
 uint ConvertDisplaySpeedToKmhishSpeed(uint speed);