void IgniteExplosion( UINT8 ubOwner, INT16 sX, INT16 sY, INT16 sZ, INT32 sGridNo, UINT16 usItem, INT8 bLevel, UINT8 ubDirection )
{
	if ( Item[usItem].glgrenade == TRUE )
		ubDirection = GetDirectionFromGridNo( MercPtrs[ubOwner]->sTargetGridNo, MercPtrs[ubOwner] );

	InternalIgniteExplosion( ubOwner, sX, sY, sZ, sGridNo, usItem, TRUE, bLevel, ubDirection );
}