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Location: cpp/openttd-patchpack/source/src/autoslope.h - annotation
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(svn r19502) -Codechange: During NewGRF loading, store rail type labels in temporary data and process after loading has finished. This avoids deactivated rail vehicles being reactivated if the climate property is set after the rail type property.
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/*
* 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 autoslope.h Functions related to autoslope. */
#ifndef AUTOSLOPE_H
#define AUTOSLOPE_H
#include "company_func.h"
#include "depot_func.h"
#include "slope_func.h"
#include "tile_map.h"
#include "openttd.h"
/**
* Autoslope check for tiles with an entrance on an edge.
* E.g. depots and non-drive-through-road-stops.
*
* The test succeeds if the slope is not steep and at least one corner of the entrance edge is on the TileMaxZ() level.
*
* @note The test does not check if autoslope is enabled at all.
*
* @param tile The tile.
* @param z_new New TileZ.
* @param tileh_new New TileSlope.
* @param entrance Entrance edge.
* @return true iff terraforming is allowed.
*/
static inline bool AutoslopeCheckForEntranceEdge(TileIndex tile, uint z_new, Slope tileh_new, DiagDirection entrance)
{
if (IsSteepSlope(tileh_new) || (GetTileMaxZ(tile) != z_new + GetSlopeMaxZ(tileh_new))) return false;
return ((tileh_new == SLOPE_FLAT) || CanBuildDepotByTileh(entrance, tileh_new));
}
/**
* Tests if autoslope is enabled for _current_company.
*
* Autoslope is disabled for town/industry construction.
*
* @return true iff autoslope is enabled.
*/
static inline bool AutoslopeEnabled()
{
return (_settings_game.construction.autoslope &&
(_current_company < MAX_COMPANIES ||
(_current_company == OWNER_NONE && _game_mode == GM_EDITOR)));
}
#endif /* AUTOSLOPE_H */
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