(svn r10681) -Codechange: do not determine whether a tile is a hangar based on the graphics index to be drawn on the given tile, but do it based on the specification of the location of hangars of the airport.

src/station_cmd.cpp

@@ -78,6 +78,26 @@ DEFINE_OLD_POOL(Station, Station, StationPoolNewBlock, StationPoolCleanBlock)
 DEFINE_OLD_POOL(RoadStop, RoadStop, RoadStopPoolNewBlock, NULL)
 
 
+/**
+ * Check whether the given tile is a hangar.
+ * @param t the tile to of whether it is a hangar.
+ * @pre IsTileType(t, MP_STATION)
+ * @return true if and only if the tile is a hangar.
+ */
+bool IsHangar(TileIndex t)
+{
+	assert(IsTileType(t, MP_STATION));
+
+	const Station *st = GetStationByTile(t);
+	const AirportFTAClass *apc = st->Airport();
+
+	for (uint i = 0; i < apc->nof_depots; i++) {
+		if (st->airport_tile + ToTileIndexDiff(apc->airport_depots[i]) == t) return true;
+	}
+
+	return false;
+}
+
 RoadStop* GetRoadStopByTile(TileIndex tile, RoadStop::Type type)
 {
 	const Station* st = GetStationByTile(tile);

src/station_map.h

@@ -42,15 +42,6 @@ enum {
 	GFX_WINDSACK_INTERCON_LAST        = 143,
 };
 
-enum HangarTile {
-	HANGAR_TILE_0 = 24,
-	HANGAR_TILE_1 = 57,
-	HANGAR_TILE_2 = 62,
-	HANGAR_TILE_3 = 105, // added for west facing hangar
-	HANGAR_TILE_4 = 106, // added for north facing hangar
-	HANGAR_TILE_5 = 107  // added for east facing hangar
-};
-
 static inline StationType GetStationType(TileIndex t)
 {
 	return (StationType)GB(_m[t].m6, 3, 3);
@@ -89,17 +80,7 @@ static inline bool IsAirport(TileIndex t)
 	return GetStationType(t) == STATION_AIRPORT;
 }
 
-static inline bool IsHangar(TileIndex t)
+bool IsHangar(TileIndex t);
-{
-	StationGfx gfx = GetStationGfx(t);
-	return IsAirport(t) && (
-		gfx == HANGAR_TILE_0 ||
-		gfx == HANGAR_TILE_1 ||
-		gfx == HANGAR_TILE_2 ||
-		gfx == HANGAR_TILE_3 ||
-		gfx == HANGAR_TILE_4 ||
-		gfx == HANGAR_TILE_5);
-}
 
 static inline bool IsTruckStop(TileIndex t)
 {