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r8655:74c23e2271a3 572 B text/x-c Show Annotation Show as Raw Download as Raw

peter1138

(svn r12316) -Codechange: Support loading full range of 0xD0xx NewGRF strings which
includes 0xD000 to 0xD3FF (yes, 0xD0xx makes a lot of sense, really...)
and handle 0xD400 to 0xD7FF strings which map to 0xD000 to 0xD3FF
(obviously).

/* $Id$ */

/** @file tunnelbridge.h Header file for things common for tunnels and bridges */

#ifndef TUNNELBRIDGE_H
#define TUNNELBRIDGE_H

#include "tile_type.h"
#include "map_func.h"
#include "tunnelbridge_map.h"

/**
 * Calculates the length of a tunnel or a bridge (without end tiles)
 * @return length of bridge/tunnel middle
 */
static inline uint GetTunnelBridgeLength(TileIndex begin, TileIndex end)
{
	int x1 = TileX(begin);
	int y1 = TileY(begin);
	int x2 = TileX(end);
	int y2 = TileY(end);

	return abs(x2 + y2 - x1 - y1) - 1;
}

#endif /* TUNNELBRIDGE_H */