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/* $Id$ */
/** @file transport_type.h Base types related to transport. */
#ifndef TRANSPORT_TYPE_H
#define TRANSPORT_TYPE_H
typedef uint16 UnitID;
enum TransportType {
/* These constants are for now linked to the representation of bridges
* and tunnels, so they can be used by GetTileTrackStatus_TunnelBridge.
* In an ideal world, these constants would be used everywhere when
* accessing tunnels and bridges. For now, you should just not change
* the values for road and rail.
*/
TRANSPORT_BEGIN = 0,
TRANSPORT_RAIL = TRANSPORT_BEGIN,
TRANSPORT_ROAD,
TRANSPORT_WATER,
TRANSPORT_AIR,
TRANSPORT_END,
INVALID_TRANSPORT = 0xff,
};
#endif /* TRANSPORT_TYPE_H */
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