byte   *_map_owner           = NULL;

uint16 *_map2                = NULL;

byte   *_map3_lo             = NULL;

byte   *_map3_hi             = NULL;

byte   *_map5                = NULL;

byte   *_map_extra_bits      = NULL;

void InitMap(uint log_x, uint log_y)

{

	uint map_size;

	DEBUG(map, 1)("Allocating map of size %dx%d", log_x, log_y);

	_map_log_x = log_x;

	_map_log_y = log_y;

	map_size = MapSize();

	_map_type_and_height =

		realloc(_map_type_and_height, map_size * sizeof(_map_type_and_height[0]));

	_map_owner = realloc(_map_owner, map_size * sizeof(_map_owner[0]));

	_map2      = realloc(_map2,      map_size * sizeof(_map2[0]));