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100 lines
3.3 KiB
C++
100 lines
3.3 KiB
C++
/*
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* This file is part of OpenTTD.
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* 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.
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* 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.
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* 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/>.
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*/
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/** @file bridge_signal_map.h Map accessor functions for bridge signal simulation. */
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#ifndef BRIDGE_SIGNAL_MAP_H
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#define BRIDGE_SIGNAL_MAP_H
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#include "tile_type.h"
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#include "map_func.h"
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#include "signal_type.h"
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#include "core/bitmath_func.hpp"
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#include "3rdparty/cpp-btree/btree_set.h"
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#include <vector>
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#include <unordered_map>
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struct LongBridgeSignalStorage {
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std::vector<uint64_t> signal_red_bits;
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};
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extern std::unordered_map<TileIndex, LongBridgeSignalStorage> _long_bridge_signal_sim_map;
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extern btree::btree_set<uint32_t> _bridge_signal_style_map;
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SignalState GetBridgeEntranceSimulatedSignalStateExtended(TileIndex t, uint16_t signal);
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enum {
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BRIDGE_M2_SIGNAL_STATE_COUNT = 11,
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BRIDGE_M2_SIGNAL_STATE_FIELD_SIZE = 12,
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BRIDGE_M2_SIGNAL_STATE_OFFSET = 4,
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BRIDGE_M2_SIGNAL_STATE_EXT_FLAG = 0x8000,
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};
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inline SignalState GetBridgeEntranceSimulatedSignalState(TileIndex t, uint16_t signal)
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{
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if (signal < BRIDGE_M2_SIGNAL_STATE_COUNT) {
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return GB(_m[t].m2, signal + BRIDGE_M2_SIGNAL_STATE_OFFSET, 1) ? SIGNAL_STATE_RED : SIGNAL_STATE_GREEN;
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} else {
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return GetBridgeEntranceSimulatedSignalStateExtended(t, signal);
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}
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}
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void SetBridgeEntranceSimulatedSignalStateExtended(TileIndex t, uint16_t signal, SignalState state);
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inline void SetBridgeEntranceSimulatedSignalState(TileIndex t, uint16_t signal, SignalState state)
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{
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if (signal < BRIDGE_M2_SIGNAL_STATE_COUNT) {
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SB(_m[t].m2, signal + BRIDGE_M2_SIGNAL_STATE_OFFSET, 1, (state == SIGNAL_STATE_RED) ? 1 : 0);
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} else {
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SetBridgeEntranceSimulatedSignalStateExtended(t, signal, state);
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}
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}
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bool SetAllBridgeEntranceSimulatedSignalsGreenExtended(TileIndex t);
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inline bool SetAllBridgeEntranceSimulatedSignalsGreen(TileIndex t)
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{
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if (_m[t].m2 & BRIDGE_M2_SIGNAL_STATE_EXT_FLAG) {
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return SetAllBridgeEntranceSimulatedSignalsGreenExtended(t);
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} else {
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bool changed = GB(_m[t].m2, BRIDGE_M2_SIGNAL_STATE_OFFSET, BRIDGE_M2_SIGNAL_STATE_FIELD_SIZE) != 0;
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SB(_m[t].m2, BRIDGE_M2_SIGNAL_STATE_OFFSET, BRIDGE_M2_SIGNAL_STATE_FIELD_SIZE, 0);
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return changed;
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}
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}
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void ClearBridgeEntranceSimulatedSignalsExtended(TileIndex t);
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inline void ClearBridgeEntranceSimulatedSignals(TileIndex t)
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{
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if (_m[t].m2 & BRIDGE_M2_SIGNAL_STATE_EXT_FLAG) {
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ClearBridgeEntranceSimulatedSignalsExtended(t);
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} else {
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SB(_m[t].m2, BRIDGE_M2_SIGNAL_STATE_OFFSET, BRIDGE_M2_SIGNAL_STATE_FIELD_SIZE, 0);
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}
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}
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void ClearBridgeSimulatedSignalMapping();
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void SetBridgeSignalStyle(TileIndex t, uint8_t style);
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inline uint8_t GetBridgeSignalStyle(TileIndex t)
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{
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if (likely(!HasBit(_m[t].m3, 7))) return 0;
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extern uint8_t GetBridgeSignalStyleExtended(TileIndex t);
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return GetBridgeSignalStyleExtended(t);
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}
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void ClearBridgeSignalStyleMapping();
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void MarkSingleBridgeSignalDirty(TileIndex tile, TileIndex bridge_start_tile);
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#endif /* BRIDGE_SIGNAL_MAP_H */
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