Station: Add field for number of station tiles

src/openttd.cpp

@@ -1379,9 +1379,11 @@ void CheckCaches(bool force_check, std::function<void(const char *)> log)
 
 	std::vector<IndustryList> old_station_industries_nears;
 	std::vector<BitmapTileArea> old_station_catchment_tiles;
+	std::vector<uint> old_station_tiles;
 	for (Station *st : Station::Iterate()) {
 		old_station_industries_nears.push_back(st->industries_near);
 		old_station_catchment_tiles.push_back(st->catchment_tiles);
+		old_station_tiles.push_back(st->station_tiles);
 	}
 
 	std::vector<StationList> old_industry_stations_nears;
@@ -1424,6 +1426,9 @@ void CheckCaches(bool force_check, std::function<void(const char *)> log)
 		if (!(old_station_catchment_tiles[i] == st->catchment_tiles)) {
 			CCLOG("station catchment_tiles mismatch: st %i", (int)st->index);
 		}
+		if (!(old_station_tiles[i] == st->station_tiles)) {
+			CCLOG("station station_tiles mismatch: st %i, (old: %u, new: %u)", (int)st->index, old_station_tiles[i], st->station_tiles);
+		}
 		i++;
 	}
 	i = 0;

src/station.cpp

@@ -447,6 +447,14 @@ void Station::RecomputeCatchment(bool no_clear_nearby_lists)
 		this->industry->stations_near.clear();
 		this->industry->stations_near.insert(this);
 		this->industries_near.insert(this->industry);
+
+		/* Loop finding all station tiles */
+		TileArea ta(TileXY(this->rect.left, this->rect.top), TileXY(this->rect.right, this->rect.bottom));
+		this->station_tiles = 0;
+		TILE_AREA_LOOP(tile, ta) {
+			if (!IsTileType(tile, MP_STATION) || GetStationIndex(tile) != this->index) continue;
+			this->station_tiles++;
+		}
 		return;
 	}
 
@@ -454,9 +462,12 @@ void Station::RecomputeCatchment(bool no_clear_nearby_lists)
 
 	/* Loop finding all station tiles */
 	TileArea ta(TileXY(this->rect.left, this->rect.top), TileXY(this->rect.right, this->rect.bottom));
+	this->station_tiles = 0;
 	TILE_AREA_LOOP(tile, ta) {
 		if (!IsTileType(tile, MP_STATION) || GetStationIndex(tile) != this->index) continue;
 
+		this->station_tiles++;
+
 		uint r = GetTileCatchmentRadius(tile, this);
 		if (r == CA_NONE) continue;
 

src/station_base.h

@@ -794,6 +794,7 @@ public:
 	IndustryType indtype;   ///< Industry type to get the name from
 
 	BitmapTileArea catchment_tiles; ///< NOSAVE: Set of individual tiles covered by catchment area
+	uint station_tiles;             ///< NOSAVE: Count of station tiles owned by this station
 
 	StationHadVehicleOfType had_vehicle_of_type;
 

src/table/newgrf_debug_data.h

@@ -738,6 +738,8 @@ class NIHStationStruct : public NIHelper {
 				seprintf(buffer, lastof(buffer), "    %u: %s", ind->index, ind->GetCachedName());
 				print(buffer);
 			}
+			seprintf(buffer, lastof(buffer), "  Station tiles: %u", st->station_tiles);
+			print(buffer);
 		}
 	}
 };