Save/load changes for veh lifetime profit patch.

src/saveload/afterload.cpp

@@ -2975,8 +2975,8 @@ bool AfterLoadGame()
 		FOR_ALL_STATIONS(st) UpdateStationAcceptance(st, false);
 	}
 
-	/* Set lifetime vehicle profit to 0 if save game before 195 */
-	if (IsSavegameVersionBefore(195)) {
+	/* Set lifetime vehicle profit to 0 if lifetime profit feature is missing */
+	if (SlXvIsFeatureMissing(XSLFI_VEH_LIFETIME_PROFIT)) {
 		Vehicle *v;
 		FOR_ALL_VEHICLES(v) v->profit_lifetime = 0;
 	}

src/saveload/extended_ver_sl.cpp

@@ -45,6 +45,7 @@ std::vector<uint32> _sl_xv_discardable_chunk_ids;           ///< list of chunks
 static const uint32 _sl_xv_slxi_chunk_version = 0;          ///< current version os SLXI chunk
 
 const SlxiSubChunkInfo _sl_xv_sub_chunk_infos[] = {
+	{ XSLFI_VEH_LIFETIME_PROFIT,    XSCF_NULL,              1,                                    1, "veh_lifetime_profit",   NULL, NULL, NULL        },
 	{ XSLFI_NULL, XSCF_NULL, 0, 0, NULL, NULL, NULL, NULL },// This is the end marker
 };
 

src/saveload/extended_ver_sl.h

@@ -21,6 +21,7 @@
  */
 enum SlXvFeatureIndex {
 	XSLFI_NULL                          = 0,      ///< Unused value, to indicate that no extended feature test is in use
+	XSLFI_VEH_LIFETIME_PROFIT,                    ///< Vehicle lifetime profit patch
 
 	XSLFI_SIZE,                                   ///< Total count of features, including null feature
 };

src/saveload/vehicle_sl.cpp

@@ -683,7 +683,7 @@ const SaveLoad *GetVehicleDescription(VehicleType vt)
 		 SLE_CONDVAR(Vehicle, profit_this_year,      SLE_INT64,                   65, SL_MAX_VERSION),
 		 SLE_CONDVAR(Vehicle, profit_last_year,      SLE_FILE_I32 | SLE_VAR_I64,   0,  64),
 		 SLE_CONDVAR(Vehicle, profit_last_year,      SLE_INT64,                   65, SL_MAX_VERSION),
-		 SLE_CONDVAR(Vehicle, profit_lifetime,       SLE_INT64,                   195, SL_MAX_VERSION),
+		SLE_CONDVAR_X(Vehicle,profit_lifetime,       SLE_INT64,                    0, SL_MAX_VERSION, SlXvFeatureTest(XSLFTO_AND, XSLFI_VEH_LIFETIME_PROFIT)),
 		SLEG_CONDVAR(         _cargo_feeder_share,   SLE_FILE_I32 | SLE_VAR_I64,  51,  64),
 		SLEG_CONDVAR(         _cargo_feeder_share,   SLE_INT64,                   65,  67),
 		SLEG_CONDVAR(         _cargo_loaded_at_xy,   SLE_UINT32,                  51,  67),