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-rw-r--r--src/road.h65
1 files changed, 64 insertions, 1 deletions
diff --git a/src/road.h b/src/road.h
index 035ec8089..4c875dce0 100644
--- a/src/road.h
+++ b/src/road.h
@@ -7,6 +7,68 @@
#include "helpers.hpp"
+/**
+ * The different roadtypes we support
+ * @note currently only ROADTYPE_ROAD is supported.
+ */
+enum RoadType {
+ ROADTYPE_ROAD = 0,
+ ROADTYPE_TRAM = 1,
+ ROADTYPE_HWAY = 2, ///< Only a placeholder. Not sure what we are going to do with this road type.
+ ROADTYPE_END,
+ INVALID_ROADTYPE = 0xFF
+};
+DECLARE_POSTFIX_INCREMENT(RoadType);
+
+/**
+ * The different roadtypes we support, but then a bitmask of them
+ * @note currently only ROADTYPES_ROAD is supported.
+ */
+enum RoadTypes {
+ ROADTYPES_NONE = 0,
+ ROADTYPES_ROAD = 1 << ROADTYPE_ROAD,
+ ROADTYPES_TRAM = 1 << ROADTYPE_TRAM,
+ ROADTYPES_HWAY = 1 << ROADTYPE_HWAY,
+ ROADTYPES_ROADTRAM = ROADTYPES_ROAD | ROADTYPES_TRAM,
+ ROADTYPES_ROADHWAY = ROADTYPES_ROAD | ROADTYPES_HWAY,
+ ROADTYPES_TRAMHWAY = ROADTYPES_TRAM | ROADTYPES_HWAY,
+ ROADTYPES_ALL = ROADTYPES_ROAD | ROADTYPES_TRAM | ROADTYPES_HWAY,
+};
+DECLARE_ENUM_AS_BIT_SET(RoadTypes);
+
+/**
+ * Whether the given roadtype is valid.
+ * @param rt the roadtype to check for validness
+ * @return true if and only if valid
+ */
+static inline bool IsValidRoadType(RoadType rt)
+{
+ return rt == ROADTYPE_ROAD;
+}
+
+/**
+ * Are the given bits pointing to valid roadtypes?
+ * @param rts the roadtypes to check for validness
+ * @return true if and only if valid
+ */
+static inline bool AreValidRoadTypes(RoadTypes rts)
+{
+ return rts == ROADTYPES_ROAD;
+}
+
+/**
+ * Maps a RoadType to the corresponding RoadTypes value
+ */
+static inline RoadTypes RoadTypeToRoadTypes(RoadType rt)
+{
+ return (RoadTypes)(1 << rt);
+}
+
+static inline RoadTypes ComplementRoadTypes(RoadTypes r)
+{
+ return (RoadTypes)(ROADTYPES_ALL ^ r);
+}
+
enum RoadBits {
ROAD_NONE = 0U,
ROAD_NW = 1U,
@@ -48,8 +110,9 @@ static inline bool IsStraightRoadTrackdir(Trackdir dir)
* @param remove the roadbits that are going to be removed
* @param owner the actual owner of the roadbits of the tile
* @param edge_road are the removed bits from a town?
+ * @param rt the road type to remove the bits from
* @return true when it is allowed to remove the road bits
*/
-bool CheckAllowRemoveRoad(TileIndex tile, RoadBits remove, Owner owner, bool *edge_road);
+bool CheckAllowRemoveRoad(TileIndex tile, RoadBits remove, Owner owner, bool *edge_road, RoadType rt);
#endif /* ROAD_H */