/*
* This file is part of OpenTTD.
* 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.
* 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.
* 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 .
*/
/** @file signal_type.h Types and classes related to signals. */
#ifndef SIGNAL_TYPE_H
#define SIGNAL_TYPE_H
#include "core/enum_type.hpp"
/** Variant of the signal, i.e. how does the signal look? */
enum SignalVariant : byte {
SIG_ELECTRIC = 0, ///< Light signal
SIG_SEMAPHORE = 1, ///< Old-fashioned semaphore signal
};
/** Type of signal, i.e. how does the signal behave? */
enum SignalType : byte {
SIGTYPE_NORMAL = 0, ///< normal signal
SIGTYPE_ENTRY = 1, ///< presignal block entry
SIGTYPE_EXIT = 2, ///< presignal block exit
SIGTYPE_COMBO = 3, ///< presignal inter-block
SIGTYPE_PBS = 4, ///< normal pbs signal
SIGTYPE_PBS_ONEWAY = 5, ///< no-entry signal
SIGTYPE_END,
SIGTYPE_LAST = SIGTYPE_PBS_ONEWAY,
SIGTYPE_LAST_NOPBS = SIGTYPE_COMBO,
};
/** Helper information for extract tool. */
template <> struct EnumPropsT : MakeEnumPropsT {};
/**
* These are states in which a signal can be. Currently these are only two, so
* simple boolean logic will do. But do try to compare to this enum instead of
* normal boolean evaluation, since that will make future additions easier.
*/
enum SignalState {
SIGNAL_STATE_RED = 0, ///< The signal is red
SIGNAL_STATE_GREEN = 1, ///< The signal is green
};
#endif /* SIGNAL_TYPE_H */