Debug: Log number of GRFs at level sl=2 when loading a game

Add helper to get the number of non-static GRFs in a GRF config

src/network/network_server.cpp

@@ -499,15 +499,8 @@ NetworkRecvStatus ServerNetworkGameSocketHandler::SendNewGRFCheck()
 		return this->SendNeedGamePassword();
 	}
 
-	const GRFConfig *c;
-	uint grf_count = 0;
-
-	for (c = _grfconfig; c != nullptr; c = c->next) {
-		if (!HasBit(c->flags, GCF_STATIC)) grf_count++;
-	}
-
-	p->Send_uint32(grf_count);
-	for (c = _grfconfig; c != nullptr; c = c->next) {
+	p->Send_uint32(GetGRFConfigListNonStaticCount(_grfconfig));
+	for (const GRFConfig *c = _grfconfig; c != nullptr; c = c->next) {
 		if (!HasBit(c->flags, GCF_STATIC)) SerializeGRFIdentifier(*p, c->ident);
 	}
 

src/newgrf_config.cpp

@@ -540,6 +540,15 @@ void ResetGRFConfig(bool defaults)
 	AppendStaticGRFConfigs(&_grfconfig);
 }
 
+/** Get the count of non-static GRFs in a GRF config list */
+uint GetGRFConfigListNonStaticCount(const GRFConfig *config)
+{
+	uint grf_count = 0;
+	for (const GRFConfig *c = config; c != nullptr; c = c->next) {
+		if (!HasBit(c->flags, GCF_STATIC)) grf_count++;
+	}
+	return grf_count;
+}
 
 /**
  * Check if all GRFs in the GRF config from a savegame can be loaded.

src/newgrf_config.h

@@ -233,6 +233,7 @@ void AppendStaticGRFConfigs(GRFConfig **dst);
 void AppendToGRFConfigList(GRFConfig **dst, GRFConfig *el);
 void ClearGRFConfigList(GRFConfig **config);
 void ResetGRFConfig(bool defaults);
+uint GetGRFConfigListNonStaticCount(const GRFConfig *config);
 GRFListCompatibility IsGoodGRFConfigList(GRFConfig *grfconfig);
 bool FillGRFDetails(GRFConfig *config, bool is_static, Subdirectory subdir = NEWGRF_DIR);
 std::string GRFBuildParamList(const GRFConfig *c);

src/saveload/newgrf_sl.cpp

@@ -15,6 +15,7 @@
 #include "newgrf_sl.h"
 #include "../fios.h"
 #include "../load_check.h"
+#include "../debug.h"
 
 #include "../safeguards.h"
 
@@ -98,6 +99,8 @@ struct NGRFChunkHandler : ChunkHandler {
 			if (IsSavegameVersionBefore(SLV_101)) c->SetSuitablePalette();
 			AppendToGRFConfigList(&grfconfig, c);
 		}
+
+		DEBUG(sl, 2, "Loaded %u NewGRFs", GetGRFConfigListNonStaticCount(grfconfig));
 	}
 
 	void Load() const override

src/sl/newgrf_sl.cpp

@@ -11,6 +11,7 @@
 #include "../fios.h"
 #include "../load_check.h"
 #include "../string_func.h"
+#include "../debug.h"
 
 #include "saveload.h"
 #include "newgrf_sl.h"
@@ -118,6 +119,7 @@ static void Load_NGRF_common(GRFConfig *&grfconfig)
 		if (IsSavegameVersionBefore(SLV_101)) c->SetSuitablePalette();
 		AppendToGRFConfigList(&grfconfig, c);
 	}
+	DEBUG(sl, 2, "Loaded %u NewGRFs", GetGRFConfigListNonStaticCount(grfconfig));
 }
 
 static void Load_NGRF()