/*

	author: [vik] mindbl4ster

	description:
		get connections for each city
	parameter:
		0:	(optional)NUMBER					-	StartIndex
		1:	(optional)NUMBER					-	Amount of following indices
		2:	(optional)NUMBER					-	-1: Random distribution - else ending connection index
	return
		0: ARRAY		-	[	[List of indices, including start],	[List of positions	]	]
	notes

*/
private["_startIndex","_checkpoints","_endingIndex"];

_startIndex			=	[_this, 0, -1, 	[0]	] call bis_fnc_param;
_checkpoints		=	[_this, 1, -1, 	[0]	] call bis_fnc_param;
_endingIndex		=	[_this, 2, -1, 	[0]	] call bis_fnc_param;			//---> gonna get pretty complicated :(
_listOfIndicies		=	[];
_listOfPositions	=	[];
_sizeinfoMatrix		=	count MB_LocationInfoMatrix;

if(_startIndex	==	-1)then{	_startIndex		=	floor random _sizeinfoMatrix};
if(_checkpoints	==	-1)then{	_checkpoints	=	ceil random _sizeinfoMatrix};

_listOfIndicies		pushback _startIndex;
_listOfPositions 	pushback (	(MB_LocationInfoMatrix select _startIndex) select 0);


//----- create list with connections
//--- read first connections
_connections		=	(MB_locationInfoMatrix select _startIndex) select 1;
_nextConnection		=	_connections call BIS_fnc_selectRandom;

for[{_i=0},{_i<_checkpoints},{_i=_i+1}]do{

	_listOfIndicies		pushback	_nextConnection;
	_listOfPositions	pushback 	(	(MB_LocationInfoMatrix select _nextConnection) select 0);
	_connections			=	(MB_locationInfoMatrix select _nextConnection) select 1;
	_lengthCon				=	count _connections;
	_valCon					=	[];
	//--- filter connections for place not visited yet
	for[{_j=0},{_j<_lengthCon},{_j=_j+1}]do{
		_valNum	=	_connections select _j;
		if(	!(_valNum in _listOfIndicies))then{_valCon pushback _valNum;};
	};

	if(count _valCon == 0)then{_valCon	=	_connections};	// allow movement backwards once
	_nextConnection			=	_valCon	call BIS_fnc_selectRandom;

};