/* $Id$ */

#include "../stdafx.h"

#include "yapf.hpp"

#include "follow_track.hpp"

#include "yapf_node_rail.hpp"

#include "yapf_costbase.hpp"

#include "yapf_costcache.hpp"

const TrackdirBits CYapfCostBase::c_upwards_slopes[] = {

	TRACKDIR_BIT_NONE                    , // no tileh

	TRACKDIR_BIT_X_SW | TRACKDIR_BIT_Y_NW, // 1

	TRACKDIR_BIT_X_SW | TRACKDIR_BIT_Y_SE, // 2

	TRACKDIR_BIT_X_SW                    , // 3

	TRACKDIR_BIT_X_NE | TRACKDIR_BIT_Y_SE, // 4

	TRACKDIR_BIT_NONE                    , // 5

	TRACKDIR_BIT_Y_SE                    , // 6

	TRACKDIR_BIT_NONE                    , // 7

	TRACKDIR_BIT_X_NE | TRACKDIR_BIT_Y_NW, // 8,

	TRACKDIR_BIT_Y_NW                    , // 9

	TRACKDIR_BIT_NONE                    , //10

	PfnFindNearestDepotTwoWay pfnFindNearestDepotTwoWay = &CYapfAnyDepotRail2::stFindNearestDepotTwoWay;

	// check if non-default YAPF type needed

	if (_patches.forbid_90_deg)

		pfnFindNearestDepotTwoWay = &CYapfAnyDepotRail3::stFindNearestDepotTwoWay; // Trackdir, forbid 90-deg

	else if (_patches.yapf.disable_node_optimization)

		pfnFindNearestDepotTwoWay = &CYapfAnyDepotRail1::stFindNearestDepotTwoWay; // Trackdir, allow 90-deg

	bool ret = pfnFindNearestDepotTwoWay(v, tile, td, last_tile, td_rev, max_distance, reverse_penalty, depot_tile, reversed);

	return ret;

}

int CSegmentCostCacheBase::s_rail_change_counter = 0;

void YapfNotifyTrackLayoutChange(TileIndex tile, Track track) {CSegmentCostCacheBase::NotifyTrackLayoutChange(tile, track);}