(svn r7388) -Fix (r7384 / r7368 / r3757): When adding a new news item for the first time (_latest_news
is INVALID_NEWS), make it the value of _oldest_news, not zero as DeleteVehicleNews can
change _oldest_news. Also remove the (i == INVALID_NEWS) return 0; guard from increaseIndex
as it's only used in 2 places, nowhere else.

/* $Id$ */

#ifndef VOID_MAP_H
#define VOID_MAP_H

static inline void MakeVoid(TileIndex t)
{
	SetTileType(t, MP_VOID);
	SetTileHeight(t, 0);
	_m[t].m1 = 0;
	_m[t].m2 = 0;
	_m[t].m3 = 0;
	_m[t].m4 = 0;
	_m[t].m5 = 0;
	_m[t].extra = 0;
}

#endif /* VOID_MAP_H */