cpp/openttd-patchpack/source Files · src/autoslope.h

Files @ r7939:523d421f9d0c

Branch filter:

Location: cpp/openttd-patchpack/source/src/autoslope.h

r7939:523d421f9d0c 1.3 KiB text/x-c Show Annotation Show as Raw Download as Raw

egladil

(svn r11492) -Codechange: [OSX] Split the cocoa video driver into several files. The reason for this is that the fullscreen and windowed mode api are separate from each other in OS X and thus the driver actual is two drivers in one. This split is to make the code more readable and to prepare for replacing the Quickdraw windowed mode code which uses apis deprecated as of OS X 10.5 (and maybe earlier).

/* $Id$ */

/** @file autoslope.h */

#ifndef AUTOSLOPE_H
#define AUTOSLOPE_H

#include "depot.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_player.
 *
 * Autoslope is disabled for town/industry construction and old ai players.
 *
 * @return true iff autoslope is enabled.
 */
static inline bool AutoslopeEnabled()
{
	return (_patches.autoslope &&
	        ((IsValidPlayer(_current_player) && !_is_old_ai_player) ||
	         (_current_player == OWNER_NONE && _game_mode == GM_EDITOR)));
}

#endif /* AUTOSLOPE_H */