(svn r20375) -Codechange: make sure the watertype for existing airport tiles is set to invalid

src/saveload/afterload.cpp

@@ -2153,6 +2153,12 @@ bool AfterLoadGame()
 		FOR_ALL_DEPOTS(d) d->build_date = _date;
 	}
 
+	if (CheckSavegameVersion(145)) {
+		for (TileIndex t = 0; t < map_size; t++) {
+			if (IsAirportTile(t)) SetWaterClass(t, WATER_CLASS_INVALID);
+		}
+	}
+
 	/* Road stops is 'only' updating some caches */
 	AfterLoadRoadStops();
 	AfterLoadLabelMaps();

src/station_cmd.cpp

@@ -2225,7 +2225,7 @@ CommandCost CmdBuildAirport(TileIndex tile, DoCommandFlag flags, uint32 p1, uint
 		it = as->table[layout];
 		do {
 			TileIndex cur_tile = tile + ToTileIndexDiff(it->ti);
-			MakeAirport(cur_tile, st->owner, st->index, it->gfx);
+			MakeAirport(cur_tile, st->owner, st->index, it->gfx, WATER_CLASS_INVALID);
 			SetStationTileRandomBits(cur_tile, GB(Random(), 0, 4));
 			st->airport.Add(cur_tile);
 

src/station_map.h

@@ -640,10 +640,12 @@ static inline void MakeDriveThroughRoadStop(TileIndex t, Owner station, Owner ro
  * @param o the owner of the airport
  * @param sid the station to which this tile belongs
  * @param section the StationGfx to be used for this tile
+ * @param wc the type of water on this tile
  */
-static inline void MakeAirport(TileIndex t, Owner o, StationID sid, byte section)
+static inline void MakeAirport(TileIndex t, Owner o, StationID sid, byte section, WaterClass wc)
 {
 	MakeStation(t, o, sid, STATION_AIRPORT, section);
+	SetWaterClass(t, wc);
 }
 
 /**