From 1630d87c0d3b1a7c4dcec3c62979164bfe751699 Mon Sep 17 00:00:00 2001
From: Alibek Omarov <a1ba.omarov@gmail.com>
Date: Wed, 15 Mar 2023 04:58:33 +0300
Subject: [PATCH] engine: client: do not alter the state if invalid HANDLE was
 passed to pfnSPR_Set. Fixes Half-Life: MMod

---
 engine/client/cl_game.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/engine/client/cl_game.c b/engine/client/cl_game.c
index 907daf81..fe3a71ad 100644
--- a/engine/client/cl_game.c
+++ b/engine/client/cl_game.c
@@ -1417,7 +1417,13 @@ pfnSPR_Set
 */
 static void GAME_EXPORT pfnSPR_Set( HSPRITE hPic, int r, int g, int b )
 {
-	clgame.ds.pSprite = CL_GetSpritePointer( hPic );
+	const model_t *sprite = CL_GetSpritePointer( hPic );
+
+	// a1ba: do not alter the state if invalid HSPRITE was passed
+	if( !sprite )
+		return;
+
+	clgame.ds.pSprite = sprite;
 	clgame.ds.spriteColor[0] = bound( 0, r, 255 );
 	clgame.ds.spriteColor[1] = bound( 0, g, 255 );
 	clgame.ds.spriteColor[2] = bound( 0, b, 255 );