author | rubidium |
Thu, 24 May 2007 22:41:50 +0000 | |
changeset 6683 | b88ae30866ce |
parent 6259 | 471b91a4b1d8 |
child 7037 | 64249224bb74 |
permissions | -rw-r--r-- |
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/* $Id$ */ |
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/** @file follow_track.hpp Template function for track followers */ |
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#ifndef FOLLOW_TRACK_HPP |
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#define FOLLOW_TRACK_HPP |
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#include "yapf.hpp" |
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/** Track follower helper template class (can serve pathfinders and vehicle |
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* controllers). See 6 different typedefs below for 3 different transport |
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* types w/ of w/o 90-deg turns allowed */ |
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template <TransportType Ttr_type_, bool T90deg_turns_allowed_ = true> |
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struct CFollowTrackT : public FollowTrack_t |
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{ |
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CPerformanceTimer* m_pPerf; |
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FORCEINLINE CFollowTrackT(const Vehicle* v = NULL, CPerformanceTimer* pPerf = NULL) |
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{ |
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Init(v, pPerf); |
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} |
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FORCEINLINE void Init(const Vehicle* v, CPerformanceTimer* pPerf) |
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{ |
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assert(!IsRailTT() || (v != NULL && v->type == VEH_TRAIN)); |
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m_veh = v; |
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m_pPerf = pPerf; |
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// don't worry, all is inlined so compiler should remove unnecessary initializations |
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m_new_tile = INVALID_TILE; |
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m_new_td_bits = TRACKDIR_BIT_NONE; |
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m_exitdir = INVALID_DIAGDIR; |
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m_is_station = m_is_bridge = m_is_tunnel = false; |
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m_tiles_skipped = 0; |
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} |
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FORCEINLINE static TransportType TT() {return Ttr_type_;} |
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FORCEINLINE static bool IsWaterTT() {return TT() == TRANSPORT_WATER;} |
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FORCEINLINE static bool IsRailTT() {return TT() == TRANSPORT_RAIL;} |
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FORCEINLINE static bool IsRoadTT() {return TT() == TRANSPORT_ROAD;} |
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FORCEINLINE static bool Allow90degTurns() {return T90deg_turns_allowed_;} |
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/** main follower routine. Fills all members and return true on success. |
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* Otherwise returns false if track can't be followed. */ |
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FORCEINLINE bool Follow(TileIndex old_tile, Trackdir old_td) |
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{ |
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m_old_tile = old_tile; |
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m_old_td = old_td; |
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assert((GetTileTrackStatus(m_old_tile, TT(), m_veh->u.road.compatible_roadtypes) & TrackdirToTrackdirBits(m_old_td)) != 0); |
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m_exitdir = TrackdirToExitdir(m_old_td); |
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if (EnteredDepot()) return true; |
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if (!CanExitOldTile()) return false; |
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FollowTileExit(); |
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if (!QueryNewTileTrackStatus()) return TryReverse(); |
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if (!CanEnterNewTile()) return false; |
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m_new_td_bits &= DiagdirReachesTrackdirs(m_exitdir); |
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if (!Allow90degTurns()) |
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m_new_td_bits &= (TrackdirBits)~(int)TrackdirCrossesTrackdirs(m_old_td); |
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return (m_new_td_bits != TRACKDIR_BIT_NONE); |
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} |
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|
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protected: |
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/** Follow the m_exitdir from m_old_tile and fill m_new_tile and m_tiles_skipped */ |
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FORCEINLINE void FollowTileExit() |
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{ |
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m_is_station = m_is_bridge = m_is_tunnel = false; |
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m_tiles_skipped = 0; |
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|
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// extra handling for tunnels in our direction |
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if (IsTunnelTile(m_old_tile)) { |
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DiagDirection tunnel_enterdir = GetTunnelDirection(m_old_tile); |
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if (tunnel_enterdir == m_exitdir) { |
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// we are entering the tunnel |
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FindLengthOfTunnelResult flotr = FindLengthOfTunnel(m_old_tile, m_exitdir); |
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m_new_tile = flotr.tile; |
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m_is_tunnel = true; |
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m_tiles_skipped = flotr.length - 1; |
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return; |
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} |
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assert(ReverseDiagDir(tunnel_enterdir) == m_exitdir); |
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} |
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// extra handling for bridge ramp in our direction |
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if (IsBridgeTile(m_old_tile)) { |
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DiagDirection bridge_enterdir = GetBridgeRampDirection(m_old_tile); |
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if (bridge_enterdir == m_exitdir) { |
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// we are entering the bridge ramp |
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m_new_tile = GetOtherBridgeEnd(m_old_tile); |
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uint32 bridge_length = GetBridgeLength(m_old_tile, m_new_tile); |
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m_tiles_skipped = bridge_length; |
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m_is_bridge = true; |
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return; |
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} |
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assert(ReverseDiagDir(bridge_enterdir) == m_exitdir); |
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} |
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// normal or station tile, do one step |
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TileIndexDiff diff = TileOffsByDiagDir(m_exitdir); |
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m_new_tile = TILE_ADD(m_old_tile, diff); |
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// special handling for stations |
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|
101 |
if (IsRailTT() && IsRailwayStationTile(m_new_tile)) { |
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|
102 |
m_is_station = true; |
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|
103 |
} else if (IsRoadTT() && IsRoadStopTile(m_new_tile)) { |
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|
104 |
m_is_station = true; |
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|
105 |
} else { |
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|
106 |
m_is_station = false; |
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|
107 |
} |
3900
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|
108 |
} |
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|
109 |
|
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parents:
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|
110 |
/** stores track status (available trackdirs) for the new tile into m_new_td_bits */ |
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|
111 |
FORCEINLINE bool QueryNewTileTrackStatus() |
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|
112 |
{ |
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parents:
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|
113 |
CPerfStart perf(*m_pPerf); |
3912
08c70885ec45
(svn r5013) -Fix: [YAPF] RVs trying to plan route through railway.
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|
114 |
if (IsRailTT() && GetTileType(m_new_tile) == MP_RAILWAY && IsPlainRailTile(m_new_tile)) { |
3900
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|
115 |
m_new_td_bits = (TrackdirBits)(GetTrackBits(m_new_tile) * 0x101); |
2c84ed52709d
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|
116 |
} else { |
6683
b88ae30866ce
(svn r9914) -Codechange: prepare GTTS and the pathfinders to handle multiple road types on a single tile.
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|
117 |
uint32 ts = GetTileTrackStatus(m_new_tile, TT(), m_veh->u.road.compatible_roadtypes); |
3900
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|
118 |
m_new_td_bits = (TrackdirBits)(ts & TRACKDIR_BIT_MASK); |
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|
119 |
} |
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|
120 |
return (m_new_td_bits != TRACKDIR_BIT_NONE); |
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|
121 |
} |
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|
122 |
|
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|
123 |
/** return true if we can leave m_old_tile in m_exitdir */ |
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|
124 |
FORCEINLINE bool CanExitOldTile() |
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|
125 |
{ |
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|
126 |
// road stop can be left at one direction only unless it's a drive-through stop |
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|
127 |
if (IsRoadTT() && IsStandardRoadStopTile(m_old_tile)) { |
3900
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|
128 |
DiagDirection exitdir = GetRoadStopDir(m_old_tile); |
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|
129 |
if (exitdir != m_exitdir) |
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|
130 |
return false; |
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|
131 |
} |
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|
132 |
|
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|
133 |
// road depots can be also left in one direction only |
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|
134 |
if (IsRoadTT() && IsTileDepotType(m_old_tile, TT())) { |
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(svn r4987) Feature: Merged YAPF into trunk. Thanks to devs for continuous support and users for testing.
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parents:
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|
135 |
DiagDirection exitdir = GetRoadDepotDirection(m_old_tile); |
2c84ed52709d
(svn r4987) Feature: Merged YAPF into trunk. Thanks to devs for continuous support and users for testing.
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diff
changeset
|
136 |
if (exitdir != m_exitdir) |
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parents:
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|
137 |
return false; |
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|
138 |
} |
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|
139 |
return true; |
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diff
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|
140 |
} |
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parents:
diff
changeset
|
141 |
|
2c84ed52709d
(svn r4987) Feature: Merged YAPF into trunk. Thanks to devs for continuous support and users for testing.
KUDr
parents:
diff
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|
142 |
/** return true if we can enter m_new_tile from m_exitdir */ |
2c84ed52709d
(svn r4987) Feature: Merged YAPF into trunk. Thanks to devs for continuous support and users for testing.
KUDr
parents:
diff
changeset
|
143 |
FORCEINLINE bool CanEnterNewTile() |
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|
144 |
{ |
6012
065d7234a7a9
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diff
changeset
|
145 |
if (IsRoadTT() && IsStandardRoadStopTile(m_new_tile)) { |
065d7234a7a9
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diff
changeset
|
146 |
// road stop can be entered from one direction only unless it's a drive-through stop |
3900
2c84ed52709d
(svn r4987) Feature: Merged YAPF into trunk. Thanks to devs for continuous support and users for testing.
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|
147 |
DiagDirection exitdir = GetRoadStopDir(m_new_tile); |
2c84ed52709d
(svn r4987) Feature: Merged YAPF into trunk. Thanks to devs for continuous support and users for testing.
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diff
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|
148 |
if (ReverseDiagDir(exitdir) != m_exitdir) |
2c84ed52709d
(svn r4987) Feature: Merged YAPF into trunk. Thanks to devs for continuous support and users for testing.
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|
149 |
return false; |
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|
150 |
} |
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parents:
diff
changeset
|
151 |
|
2c84ed52709d
(svn r4987) Feature: Merged YAPF into trunk. Thanks to devs for continuous support and users for testing.
KUDr
parents:
diff
changeset
|
152 |
// road and rail depots can also be entered from one direction only |
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parents:
diff
changeset
|
153 |
if (IsRoadTT() && IsTileDepotType(m_new_tile, TT())) { |
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parents:
diff
changeset
|
154 |
DiagDirection exitdir = GetRoadDepotDirection(m_new_tile); |
2c84ed52709d
(svn r4987) Feature: Merged YAPF into trunk. Thanks to devs for continuous support and users for testing.
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parents:
diff
changeset
|
155 |
if (ReverseDiagDir(exitdir) != m_exitdir) |
2c84ed52709d
(svn r4987) Feature: Merged YAPF into trunk. Thanks to devs for continuous support and users for testing.
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parents:
diff
changeset
|
156 |
return false; |
4407
685c613f3fec
(svn r6160) -Fix [ 1519167 ] Bus trying to service in depot of other company (mart3p)
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3977
diff
changeset
|
157 |
// don't try to enter other player's depots |
685c613f3fec
(svn r6160) -Fix [ 1519167 ] Bus trying to service in depot of other company (mart3p)
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|
158 |
if (GetTileOwner(m_new_tile) != m_veh->owner) { |
685c613f3fec
(svn r6160) -Fix [ 1519167 ] Bus trying to service in depot of other company (mart3p)
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|
159 |
return false; |
685c613f3fec
(svn r6160) -Fix [ 1519167 ] Bus trying to service in depot of other company (mart3p)
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changeset
|
160 |
} |
3900
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diff
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|
161 |
} |
2c84ed52709d
(svn r4987) Feature: Merged YAPF into trunk. Thanks to devs for continuous support and users for testing.
KUDr
parents:
diff
changeset
|
162 |
if (IsRailTT() && IsTileDepotType(m_new_tile, TT())) { |
2c84ed52709d
(svn r4987) Feature: Merged YAPF into trunk. Thanks to devs for continuous support and users for testing.
KUDr
parents:
diff
changeset
|
163 |
DiagDirection exitdir = GetRailDepotDirection(m_new_tile); |
2c84ed52709d
(svn r4987) Feature: Merged YAPF into trunk. Thanks to devs for continuous support and users for testing.
KUDr
parents:
diff
changeset
|
164 |
if (ReverseDiagDir(exitdir) != m_exitdir) |
2c84ed52709d
(svn r4987) Feature: Merged YAPF into trunk. Thanks to devs for continuous support and users for testing.
KUDr
parents:
diff
changeset
|
165 |
return false; |
2c84ed52709d
(svn r4987) Feature: Merged YAPF into trunk. Thanks to devs for continuous support and users for testing.
KUDr
parents:
diff
changeset
|
166 |
} |
2c84ed52709d
(svn r4987) Feature: Merged YAPF into trunk. Thanks to devs for continuous support and users for testing.
KUDr
parents:
diff
changeset
|
167 |
|
2c84ed52709d
(svn r4987) Feature: Merged YAPF into trunk. Thanks to devs for continuous support and users for testing.
KUDr
parents:
diff
changeset
|
168 |
// rail transport is possible only on tiles with the same owner as vehicle |
2c84ed52709d
(svn r4987) Feature: Merged YAPF into trunk. Thanks to devs for continuous support and users for testing.
KUDr
parents:
diff
changeset
|
169 |
if (IsRailTT() && GetTileOwner(m_new_tile) != m_veh->owner) { |
2c84ed52709d
(svn r4987) Feature: Merged YAPF into trunk. Thanks to devs for continuous support and users for testing.
KUDr
parents:
diff
changeset
|
170 |
// different owner |
5385
3868f2e6db9b
(svn r7573) -Merged the bridge branch. Allows to build bridges of arbitrary rail/road combinations (including signals)
celestar
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4559
diff
changeset
|
171 |
return false; |
3900
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(svn r4987) Feature: Merged YAPF into trunk. Thanks to devs for continuous support and users for testing.
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parents:
diff
changeset
|
172 |
} |
2c84ed52709d
(svn r4987) Feature: Merged YAPF into trunk. Thanks to devs for continuous support and users for testing.
KUDr
parents:
diff
changeset
|
173 |
|
2c84ed52709d
(svn r4987) Feature: Merged YAPF into trunk. Thanks to devs for continuous support and users for testing.
KUDr
parents:
diff
changeset
|
174 |
// rail transport is possible only on compatible rail types |
2c84ed52709d
(svn r4987) Feature: Merged YAPF into trunk. Thanks to devs for continuous support and users for testing.
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parents:
diff
changeset
|
175 |
if (IsRailTT()) { |
6154 | 176 |
RailType rail_type = GetTileRailType(m_new_tile); |
5826 | 177 |
if (!HASBIT(m_veh->u.rail.compatible_railtypes, rail_type)) { |
3900
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|
178 |
// incompatible rail type |
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parents:
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|
179 |
return false; |
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(svn r4987) Feature: Merged YAPF into trunk. Thanks to devs for continuous support and users for testing.
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parents:
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|
180 |
} |
2c84ed52709d
(svn r4987) Feature: Merged YAPF into trunk. Thanks to devs for continuous support and users for testing.
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parents:
diff
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|
181 |
} |
2c84ed52709d
(svn r4987) Feature: Merged YAPF into trunk. Thanks to devs for continuous support and users for testing.
KUDr
parents:
diff
changeset
|
182 |
|
5420
265af7def3aa
(svn r7623) - Fix: [YAPF] trains/roadvehs trying to enter the bridge ramp from under bridge rail/road (introduced by bridge merge r7573)
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diff
changeset
|
183 |
// tunnel holes and bridge ramps can be entered only from proper direction |
265af7def3aa
(svn r7623) - Fix: [YAPF] trains/roadvehs trying to enter the bridge ramp from under bridge rail/road (introduced by bridge merge r7573)
KUDr
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diff
changeset
|
184 |
if (!IsWaterTT() && IsTileType(m_new_tile, MP_TUNNELBRIDGE)) { |
265af7def3aa
(svn r7623) - Fix: [YAPF] trains/roadvehs trying to enter the bridge ramp from under bridge rail/road (introduced by bridge merge r7573)
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changeset
|
185 |
if (IsTunnel(m_new_tile)) { |
265af7def3aa
(svn r7623) - Fix: [YAPF] trains/roadvehs trying to enter the bridge ramp from under bridge rail/road (introduced by bridge merge r7573)
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changeset
|
186 |
if (!m_is_tunnel) { |
265af7def3aa
(svn r7623) - Fix: [YAPF] trains/roadvehs trying to enter the bridge ramp from under bridge rail/road (introduced by bridge merge r7573)
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|
187 |
DiagDirection tunnel_enterdir = GetTunnelDirection(m_new_tile); |
265af7def3aa
(svn r7623) - Fix: [YAPF] trains/roadvehs trying to enter the bridge ramp from under bridge rail/road (introduced by bridge merge r7573)
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|
188 |
if (tunnel_enterdir != m_exitdir) return false; |
265af7def3aa
(svn r7623) - Fix: [YAPF] trains/roadvehs trying to enter the bridge ramp from under bridge rail/road (introduced by bridge merge r7573)
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diff
changeset
|
189 |
} |
265af7def3aa
(svn r7623) - Fix: [YAPF] trains/roadvehs trying to enter the bridge ramp from under bridge rail/road (introduced by bridge merge r7573)
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diff
changeset
|
190 |
} else if (IsBridge(m_new_tile)) { |
265af7def3aa
(svn r7623) - Fix: [YAPF] trains/roadvehs trying to enter the bridge ramp from under bridge rail/road (introduced by bridge merge r7573)
KUDr
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5385
diff
changeset
|
191 |
if (!m_is_bridge) { |
265af7def3aa
(svn r7623) - Fix: [YAPF] trains/roadvehs trying to enter the bridge ramp from under bridge rail/road (introduced by bridge merge r7573)
KUDr
parents:
5385
diff
changeset
|
192 |
DiagDirection ramp_enderdir = GetBridgeRampDirection(m_new_tile); |
265af7def3aa
(svn r7623) - Fix: [YAPF] trains/roadvehs trying to enter the bridge ramp from under bridge rail/road (introduced by bridge merge r7573)
KUDr
parents:
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diff
changeset
|
193 |
if (ramp_enderdir != m_exitdir) return false; |
265af7def3aa
(svn r7623) - Fix: [YAPF] trains/roadvehs trying to enter the bridge ramp from under bridge rail/road (introduced by bridge merge r7573)
KUDr
parents:
5385
diff
changeset
|
194 |
} |
265af7def3aa
(svn r7623) - Fix: [YAPF] trains/roadvehs trying to enter the bridge ramp from under bridge rail/road (introduced by bridge merge r7573)
KUDr
parents:
5385
diff
changeset
|
195 |
} |
3900
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(svn r4987) Feature: Merged YAPF into trunk. Thanks to devs for continuous support and users for testing.
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parents:
diff
changeset
|
196 |
} |
3931
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(svn r5066) -Feature: [YAPF] Train selects the best station platform by length
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diff
changeset
|
197 |
|
b946fc6e7188
(svn r5066) -Feature: [YAPF] Train selects the best station platform by length
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diff
changeset
|
198 |
// special handling for rail stations - get to the end of platform |
b946fc6e7188
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diff
changeset
|
199 |
if (IsRailTT() && m_is_station) { |
b946fc6e7188
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|
200 |
// entered railway station |
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diff
changeset
|
201 |
// get platform length |
5998
2bfbade143ac
(svn r8709) -Fix/Codechange: Rename the function GetStationPlatforms into GetPlatformLength because that is what it really does. Overload it because there is already a GetPlatformLength (one gives the length of the whole platform, the other gives the remaining length in a given direction). Turned both functions into methods of Station. While messing around with it, fix a problem where loading times for overhanging trains are miscomputed.
celestar
parents:
5826
diff
changeset
|
202 |
uint length = GetStationByTile(m_new_tile)->GetPlatformLength(m_new_tile, TrackdirToExitdir(m_old_td)); |
3931
b946fc6e7188
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diff
changeset
|
203 |
// how big step we must do to get to the last platform tile; |
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m_tiles_skipped = length - 1; |
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// move to the platform end |
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TileIndexDiff diff = TileOffsByDiagDir(m_exitdir); |
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diff *= m_tiles_skipped; |
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m_new_tile = TILE_ADD(m_new_tile, diff); |
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return true; |
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} |
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|
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return true; |
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} |
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214 |
|
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/** return true if we entered depot and reversed inside */ |
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FORCEINLINE bool EnteredDepot() |
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{ |
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// rail and road depots cause reversing |
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if (!IsWaterTT() && IsTileDepotType(m_old_tile, TT())) { |
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DiagDirection exitdir = IsRailTT() ? GetRailDepotDirection(m_old_tile) : GetRoadDepotDirection(m_old_tile); |
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if (exitdir != m_exitdir) { |
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// reverse |
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m_new_tile = m_old_tile; |
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m_new_td_bits = TrackdirToTrackdirBits(ReverseTrackdir(m_old_td)); |
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m_exitdir = exitdir; |
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m_tiles_skipped = 0; |
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m_is_tunnel = m_is_bridge = m_is_station = false; |
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return true; |
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} |
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} |
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return false; |
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} |
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233 |
|
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/** return true if we successfully reversed at end of road/track */ |
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FORCEINLINE bool TryReverse() |
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236 |
{ |
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if (IsRoadTT()) { |
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// if we reached the end of road, we can reverse the RV and continue moving |
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m_exitdir = ReverseDiagDir(m_exitdir); |
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// new tile will be the same as old one |
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m_new_tile = m_old_tile; |
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// set new trackdir bits to all reachable trackdirs |
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QueryNewTileTrackStatus(); |
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m_new_td_bits &= DiagdirReachesTrackdirs(m_exitdir); |
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if (m_new_td_bits != TRACKDIR_BIT_NONE) { |
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// we have some trackdirs reachable after reversal |
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return true; |
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248 |
} |
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249 |
} |
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return false; |
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} |
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252 |
|
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253 |
public: |
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/** Helper for pathfinders - get min/max speed on the m_old_tile/m_old_td */ |
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int GetSpeedLimit(int *pmin_speed = NULL) |
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{ |
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int min_speed = 0; |
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int max_speed = INT_MAX; // no limit |
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259 |
|
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// for now we handle only on-bridge speed limit |
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if (!IsWaterTT() && IsBridgeTile(m_old_tile)) { |
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int spd = _bridge[GetBridgeType(m_old_tile)].speed; |
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if (IsRoadTT()) spd *= 2; |
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if (max_speed > spd) max_speed = spd; |
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} |
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266 |
|
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// if min speed was requested, return it |
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if (pmin_speed) *pmin_speed = min_speed; |
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return max_speed; |
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270 |
} |
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271 |
}; |
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272 |
|
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typedef CFollowTrackT<TRANSPORT_WATER, true > CFollowTrackWater; |
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typedef CFollowTrackT<TRANSPORT_ROAD , true > CFollowTrackRoad; |
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typedef CFollowTrackT<TRANSPORT_RAIL , true > CFollowTrackRail; |
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276 |
|
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typedef CFollowTrackT<TRANSPORT_WATER, false> CFollowTrackWaterNo90; |
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typedef CFollowTrackT<TRANSPORT_ROAD , false> CFollowTrackRoadNo90; |
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typedef CFollowTrackT<TRANSPORT_RAIL , false> CFollowTrackRailNo90; |
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280 |
|
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281 |
#endif /* FOLLOW_TRACK_HPP */ |