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83 lines
3.1 KiB
C++
83 lines
3.1 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 signal_type.h Types and classes related to signals. */
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#ifndef SIGNAL_TYPE_H
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#define SIGNAL_TYPE_H
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#include "core/enum_type.hpp"
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#include "track_type.h"
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#include "tile_type.h"
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#include "zoom_type.h"
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/** Variant of the signal, i.e. how does the signal look? */
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enum SignalVariant {
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SIG_ELECTRIC = 0, ///< Light signal
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SIG_SEMAPHORE = 1, ///< Old-fashioned semaphore signal
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};
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/** Type of signal, i.e. how does the signal behave? */
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enum SignalType : byte {
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SIGTYPE_BLOCK = 0, ///< block signal
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SIGTYPE_ENTRY = 1, ///< presignal block entry
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SIGTYPE_EXIT = 2, ///< presignal block exit
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SIGTYPE_COMBO = 3, ///< presignal inter-block
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SIGTYPE_PBS = 4, ///< normal pbs signal
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SIGTYPE_PBS_ONEWAY = 5, ///< one-way PBS signal
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SIGTYPE_PROG = 6, ///< programmable presignal
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SIGTYPE_NO_ENTRY = 7, ///< no-entry signal
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SIGTYPE_END,
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SIGTYPE_LAST = SIGTYPE_NO_ENTRY,
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SIGTYPE_FIRST_PBS_SPRITE = SIGTYPE_PBS,
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};
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/** Helper information for extract tool. */
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template <> struct EnumPropsT<SignalType> : MakeEnumPropsT<SignalType, byte, SIGTYPE_BLOCK, SIGTYPE_END, SIGTYPE_END, 3> {};
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/** Reference to a signal
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*
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* A reference to a signal by its tile and track
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*/
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struct SignalReference {
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inline SignalReference(TileIndex t, Track tr) : tile(t), track(tr) {}
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inline bool operator<(const SignalReference& o) const { return tile < o.tile || (tile == o.tile && track < o.track); }
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inline bool operator==(const SignalReference& o) const { return tile == o.tile && track == o.track; }
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inline bool operator!=(const SignalReference& o) const { return tile != o.tile || track != o.track; }
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TileIndex tile;
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Track track;
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};
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DECLARE_ENUM_AS_ADDABLE(SignalType)
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/**
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* These are states in which a signal can be. Currently these are only two, so
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* simple boolean logic will do. But do try to compare to this enum instead of
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* normal boolean evaluation, since that will make future additions easier.
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*/
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enum SignalState {
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SIGNAL_STATE_RED = 0, ///< The signal is red
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SIGNAL_STATE_GREEN = 1, ///< The signal is green
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SIGNAL_STATE_MAX = SIGNAL_STATE_GREEN,
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};
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/** Signal groups to cycle through. */
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enum SignalCycleGroups : uint8_t {
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SCG_CURRENT_GROUP = 0,
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SCG_BLOCK = 1 << 0,
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SCG_PBS = 1 << 1,
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};
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DECLARE_ENUM_AS_BIT_SET(SignalCycleGroups)
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static const int SIGNAL_DIRTY_LEFT = 14 * ZOOM_LVL_BASE;
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static const int SIGNAL_DIRTY_RIGHT = 14 * ZOOM_LVL_BASE;
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static const int SIGNAL_DIRTY_TOP = 30 * ZOOM_LVL_BASE;
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static const int SIGNAL_DIRTY_BOTTOM = 5 * ZOOM_LVL_BASE;
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#endif /* SIGNAL_TYPE_H */
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