OpenTTD Source: src/tunnelbridge_map.h Source File

OpenTTD Source 13.1

tunnelbridge_map.h
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1 /*
2 * This file is part of OpenTTD.
3 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
4 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
5 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
6 */
7
10 #ifndef TUNNELBRIDGE_MAP_H
11 #define TUNNELBRIDGE_MAP_H
12
13 #include "bridge_map.h"
14 #include "tunnel_map.h"
15
16
26 static inline DiagDirection GetTunnelBridgeDirection(TileIndex t)
27 {
28 assert(IsTileType(t, MP_TUNNELBRIDGE));
29 return (DiagDirection)GB(_m[t].m5, 0, 2);
30 }
31
39 static inline TransportType GetTunnelBridgeTransportType(TileIndex t)
40 {
41 assert(IsTileType(t, MP_TUNNELBRIDGE));
42 return (TransportType)GB(_m[t].m5, 2, 2);
43 }
44
52 static inline bool HasTunnelBridgeSnowOrDesert(TileIndex t)
53 {
54 assert(IsTileType(t, MP_TUNNELBRIDGE));
55 return HasBit(_me[t].m7, 5);
56 }
57
66 static inline void SetTunnelBridgeSnowOrDesert(TileIndex t, bool snow_or_desert)
67 {
68 assert(IsTileType(t, MP_TUNNELBRIDGE));
69 SB(_me[t].m7, 5, 1, snow_or_desert);
70 }
71
78 static inline TileIndex GetOtherTunnelBridgeEnd(TileIndex t)
79 {
80 assert(IsTileType(t, MP_TUNNELBRIDGE));
81 return IsTunnel(t) ? GetOtherTunnelEnd(t) : GetOtherBridgeEnd(t);
82 }
83
84
91 static inline bool HasTunnelBridgeReservation(TileIndex t)
92 {
93 assert(IsTileType(t, MP_TUNNELBRIDGE));
94 assert(GetTunnelBridgeTransportType(t) == TRANSPORT_RAIL);
95 return HasBit(_m[t].m5, 4);
96 }
97
104 static inline void SetTunnelBridgeReservation(TileIndex t, bool b)
105 {
106 assert(IsTileType(t, MP_TUNNELBRIDGE));
107 assert(GetTunnelBridgeTransportType(t) == TRANSPORT_RAIL);
108 SB(_m[t].m5, 4, 1, b ? 1 : 0);
109 }
110
117 static inline TrackBits GetTunnelBridgeReservationTrackBits(TileIndex t)
118 {
119 return HasTunnelBridgeReservation(t) ? DiagDirToDiagTrackBits(GetTunnelBridgeDirection(t)) : TRACK_BIT_NONE;
120 }
121
122 #endif /* TUNNELBRIDGE_MAP_H */
tunnel_map.h
TRACK_BIT_NONE
@ TRACK_BIT_NONE
No track.
Definition: track_type.h:39
GetOtherBridgeEnd
TileIndex GetOtherBridgeEnd(TileIndex tile)
Starting at one bridge end finds the other bridge end.
Definition: bridge_map.cpp:59
GB
static uint GB(const T x, const uint8 s, const uint8 n)
Fetch n bits from x, started at bit s.
Definition: bitmath_func.hpp:32
HasBit
static bool HasBit(const T x, const uint8 y)
Checks if a bit in a value is set.
Definition: bitmath_func.hpp:103
_me
TileExtended * _me
Extended Tiles of the map.
Definition: map.cpp:31
TileIndex
The index/ID of a Tile.
Definition: tile_type.h:85
TRANSPORT_RAIL
@ TRANSPORT_RAIL
Transport by train.
Definition: transport_type.h:27
TransportType
TransportType
Available types of transport.
Definition: transport_type.h:19
SB
static T SB(T &x, const uint8 s, const uint8 n, const U d)
Set n bits in x starting at bit s to d.
Definition: bitmath_func.hpp:58
MP_TUNNELBRIDGE
@ MP_TUNNELBRIDGE
Tunnel entry/exit and bridge heads.
Definition: tile_type.h:57
DiagDirection
DiagDirection
Enumeration for diagonal directions.
Definition: direction_type.h:77
HasTunnelBridgeSnowOrDesert
static bool HasTunnelBridgeSnowOrDesert(TileIndex t)
Tunnel: Is this tunnel entrance in a snowy or desert area? Bridge: Does the bridge ramp lie in a snow...
Definition: tunnelbridge_map.h:52
bridge_map.h
IsTileType
static bool IsTileType(TileIndex tile, TileType type)
Checks if a tile is a given tiletype.
Definition: tile_map.h:150
GetTunnelBridgeDirection
static DiagDirection GetTunnelBridgeDirection(TileIndex t)
Get the direction pointing to the other end.
Definition: tunnelbridge_map.h:26
GetTunnelBridgeReservationTrackBits
static TrackBits GetTunnelBridgeReservationTrackBits(TileIndex t)
Get the reserved track bits for a rail tunnel/bridge.
Definition: tunnelbridge_map.h:117
IsTunnel
static bool IsTunnel(TileIndex t)
Is this a tunnel (entrance)?
Definition: tunnel_map.h:23
HasTunnelBridgeReservation
static bool HasTunnelBridgeReservation(TileIndex t)
Get the reservation state of the rail tunnel/bridge.
Definition: tunnelbridge_map.h:91
SetTunnelBridgeReservation
static void SetTunnelBridgeReservation(TileIndex t, bool b)
Set the reservation state of the rail tunnel/bridge.
Definition: tunnelbridge_map.h:104
GetOtherTunnelEnd
TileIndex GetOtherTunnelEnd(TileIndex tile)
Gets the other end of the tunnel.
Definition: tunnel_map.cpp:22
TrackBits
TrackBits
Bitfield corresponding to Track.
Definition: track_type.h:38
DiagDirToDiagTrackBits
static TrackBits DiagDirToDiagTrackBits(DiagDirection diagdir)
Maps a (4-way) direction to the diagonal track bits incidating with that diagdir.
Definition: track_func.h:523
GetOtherTunnelBridgeEnd
static TileIndex GetOtherTunnelBridgeEnd(TileIndex t)
Determines type of the wormhole and returns its other end.
Definition: tunnelbridge_map.h:78
GetTunnelBridgeTransportType
static TransportType GetTunnelBridgeTransportType(TileIndex t)
Tunnel: Get the transport type of the tunnel (road or rail) Bridge: Get the transport type of the bri...
Definition: tunnelbridge_map.h:39
SetTunnelBridgeSnowOrDesert
static void SetTunnelBridgeSnowOrDesert(TileIndex t, bool snow_or_desert)
Tunnel: Places this tunnel entrance in a snowy or desert area, or takes it out of there.
Definition: tunnelbridge_map.h:66
_m
Tile * _m
Tiles of the map.
Definition: map.cpp:30