src/bridge_signal_map.h

   1 /* $Id$ */
   2
   3 /*
   4  * This file is part of OpenTTD.
   5  * 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.
   6  * 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.
   7  * 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/>.
   8  */
   9
  10 /** @file bridge_signal_map.h Map accessor functions for bridge signal simulation. */
  11
  12 #ifndef BRIDGE_SIGNAL_MAP_H
  13 #define BRIDGE_SIGNAL_MAP_H
  14
  15 #include "tile_type.h"
  16 #include "map_func.h"
  17 #include "signal_type.h"
  18 #include "core/bitmath_func.hpp"
  19
  20 #include <vector>
  21 #include <unordered_map>
  22
  23 struct LongBridgeSignalStorage {
  24         std::vector<uint64> signal_red_bits;
  25 };
  26
  27 extern std::unordered_map<TileIndex, LongBridgeSignalStorage> _long_bridge_signal_sim_map;
  28
  29 SignalState GetBridgeEntranceSimulatedSignalStateExtended(TileIndex t, uint16 signal);
  30
  31 static inline SignalState GetBridgeEntranceSimulatedSignalState(TileIndex t, uint16 signal)
  32 {
  33         if (signal < 15) {
  34                 return GB(_m[t].m2, signal, 1) ? SIGNAL_STATE_RED : SIGNAL_STATE_GREEN;
  35         } else {
  36                 return GetBridgeEntranceSimulatedSignalStateExtended(t, signal);
  37         }
  38 }
  39
  40 void SetBridgeEntranceSimulatedSignalStateExtended(TileIndex t, uint16 signal, SignalState state);
  41
  42 static inline void SetBridgeEntranceSimulatedSignalState(TileIndex t, uint16 signal, SignalState state)
  43 {
  44         if (signal < 15) {
  45                 SB(_m[t].m2, signal, 1, (state == SIGNAL_STATE_RED) ? 1 : 0);
  46         } else {
  47                 SetBridgeEntranceSimulatedSignalStateExtended(t, signal, state);
  48         }
  49 }
  50
  51 void SetAllBridgeEntranceSimulatedSignalsGreenExtended(TileIndex t);
  52
  53 static inline void SetAllBridgeEntranceSimulatedSignalsGreen(TileIndex t)
  54 {
  55         if (_m[t].m2 & 0x8000) {
  56                 SetAllBridgeEntranceSimulatedSignalsGreenExtended(t);
  57         } else {
  58                 _m[t].m2 = 0;
  59         }
  60 }
  61
  62 void ClearBridgeEntranceSimulatedSignalsExtended(TileIndex t);
  63
  64 static inline void ClearBridgeEntranceSimulatedSignals(TileIndex t)
  65 {
  66         if (_m[t].m2 & 0x8000) {
  67                 ClearBridgeEntranceSimulatedSignalsExtended(t);
  68         } else {
  69                 _m[t].m2 = 0;
  70         }
  71 }
  72
  73 void ClearBridgeSimulatedSignalMapping();
  74
  75 #endif /* BRIDGE_SIGNAL_MAP_H */