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rubidium

(svn r20593) -Fix: (rlongago, r20547): long ago the service interval was int16, after which is got converted to Date except in the order backup. Much later I copied the savegame snippets from a vehicle and applied that on the order backup. Presto, reading/writing 32 bits (of Date) into 16 bits of ancient style service interval. That would then "spoil" the name pointer and that eventually crashes OpenTTD as it's likely to be an invalid pointer.

/* $Id$ */

/*
 * 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 <http://www.gnu.org/licenses/>.
 */

/** @file elrail_func.h header file for electrified rail specific functions */

#ifndef ELRAIL_FUNC_H
#define ELRAIL_FUNC_H

#include "rail.h"
#include "tile_cmd.h"
#include "transparency.h"

/**
 * Test if a rail type has catenary
 * @param rt Rail type to test
 */
static inline bool HasCatenary(RailType rt)
{
	return HasBit(GetRailTypeInfo(rt)->flags, RTF_CATENARY);
}

/**
 * Test if we should draw rail catenary
 * @param rt Rail type to test
 */
static inline bool HasCatenaryDrawn(RailType rt)
{
	return HasCatenary(rt) && !IsInvisibilitySet(TO_CATENARY) && !_settings_game.vehicle.disable_elrails;
}

/**
 * Draws overhead wires and pylons for electric railways.
 * @param ti The TileInfo struct of the tile being drawn
 * @see DrawCatenaryRailway
 */
void DrawCatenary(const TileInfo *ti);
void DrawCatenaryOnTunnel(const TileInfo *ti);
void DrawCatenaryOnBridge(const TileInfo *ti);

bool SettingsDisableElrail(int32 p1); ///< _settings_game.disable_elrail callback

#endif /* ELRAIL_FUNC_H */