(svn r4559) - NewGRF: keep a record of which grf an engine is defined in. Will be used in the future.

1 files changed, 15 insertions, 0 deletions

diff --git a/newgrf_engine.c b/newgrf_engine.c
index e6f878a7c..965aa696a 100644
--- a/newgrf_engine.c
+++ b/newgrf_engine.c
@@ -99,6 +99,7 @@ void UnloadWagonOverrides(void)
 // may appear in future - however it's more convenient to store it like this in
 // memory. --pasky)
 static SpriteGroup *engine_custom_sprites[TOTAL_NUM_ENGINES][NUM_GLOBAL_CID];
+static uint32 _engine_grf[TOTAL_NUM_ENGINES];
 
 void SetCustomEngineSprites(EngineID engine, byte cargo, SpriteGroup *group)
 {
@@ -121,9 +122,23 @@ void UnloadCustomEngineSprites(void)
 		for (cargo = 0; cargo < NUM_GLOBAL_CID; cargo++) {
 			engine_custom_sprites[engine][cargo] = NULL;
 		}
+		_engine_grf[engine] = 0;
 	}
 }
 
+void SetEngineGRF(EngineID engine, uint32 grfid)
+{
+	assert(engine < TOTAL_NUM_ENGINES);
+	_engine_grf[engine] = grfid;
+}
+
+uint32 GetEngineGRFID(EngineID engine)
+{
+	assert(engine < TOTAL_NUM_ENGINES);
+	return _engine_grf[engine];
+}
+
+
 static int MapOldSubType(const Vehicle *v)
 {
 	if (v->type != VEH_Train) return v->subtype;