1

#include "stdafx.h"

     2

#include "tile.h"

     3

     4

void SetMapExtraBits(TileIndex tile, byte bits)

     5

{

     6

	assert(tile < MapSize());

     7

	_map_extra_bits[tile >> 2] &= ~(3 << ((tile & 3) * 2));

     8

	_map_extra_bits[tile >> 2] |= (bits&3) << ((tile & 3) * 2);

     9

}

    10

    11

uint GetMapExtraBits(TileIndex tile)

    12

{

    13

	assert(tile < MapSize());

    14

	return (_map_extra_bits[tile >> 2] >> (tile & 3) * 2) & 3;

    15

}