Random Array

[Pasi 11]

Hello guysy

 

i have a new Problem :/

 

so i have a Array like this:

_jobs = 
        [
	["BLABLATEXT1","BLABLATEXT1","BLABLATEXT1","BLABLATEXT1",'//SCRIPT'],
	["BLABLATEXT2","BLABLATEXT2","BLABLATEXT2","BLABLATEXT2",'//SCRIPT']
];

an now i want to select one of them randomly like this:

randomselect = selectRandom _jobs;

but allways it sayd that randomselect is not defined :/

anyone a idea ?

 

pls help me :D

Pasi

 

[killzone_kid 1331]

Works for me
 

_jobs =  
        [ 
 ["BLABLATEXT1","BLABLATEXT1","BLABLATEXT1","BLABLATEXT1",'//SCRIPT'], 
 ["BLABLATEXT2","BLABLATEXT2","BLABLATEXT2","BLABLATEXT2",'//SCRIPT'] 
];

hint str selectRandom _jobs;

hint shows ["BLABLATEXT2","BLABLATEXT2","BLABLATEXT2","BLABLATEXT2","//SCRIPT"]

[Guest]

Your variable may be in the wrong scope.

[Pasi 11]

It dont work :/

 

the Variables are defined in a Switch do case but that ist not the Problem or ? :/

_class = 1;
switch (_class) do
{
case 1:
{
_jobs =  
        [ 
 ["BLABLATEXT1","BLABLATEXT1","BLABLATEXT1","BLABLATEXT1",'//SCRIPT'], 
 ["BLABLATEXT2","BLABLATEXT2","BLABLATEXT2","BLABLATEXT2",'//SCRIPT'] 
];
randomselect = selectRandom _jobs;
};
case 2:
{
_jobs =  
        [ 
 ["BLABLATEXT3","BLABLATEXT3","BLABLATEXT3","BLABLATEXT3",'//SCRIPT'], 
 ["BLABLATEXT4","BLABLATEXT4","BLABLATEXT4","BLABLATEXT4",'//SCRIPT'] 
];
randomselect = selectRandom _jobs;
};
};

[killzone_kid 1331]

 

It dont work :/

 

the Variables are defined in a Switch do case but that ist not the Problem or ? :/

_class = 1;
switch (_class) do
{
case 1:
{
_jobs =  
        [ 
 ["BLABLATEXT1","BLABLATEXT1","BLABLATEXT1","BLABLATEXT1",'//SCRIPT'], 
 ["BLABLATEXT2","BLABLATEXT2","BLABLATEXT2","BLABLATEXT2",'//SCRIPT'] 
];
randomselect = selectRandom _jobs;
};
case 2:
{
_jobs =  
        [ 
 ["BLABLATEXT3","BLABLATEXT3","BLABLATEXT3","BLABLATEXT3",'//SCRIPT'], 
 ["BLABLATEXT4","BLABLATEXT4","BLABLATEXT4","BLABLATEXT4",'//SCRIPT'] 
];
randomselect = selectRandom _jobs;
};
};

 

Should work, put

hint str [randomselect];

right after randomselect = .... statement, what does it show?

[Pasi 11]

Nothing :/

 

i dont see a Hint.

in the Debug console over Watch when i typing randomselect  i see this: []

[killzone_kid 1331]

it cannot be [] unless you are setting it to [] elsewhere, perhaps through some loop or _jobs is somethng like [[],[]]? Also, are you running this on the server? Because there is no reason why hint wouldn't show at all

[Donne 0]

Hello there. Sorry to hijack the thread, but I am also trying to get my head around a bit of randomness

 

So, take the following:

_numberArray = [1, 2, 3];
_number = _numberArray call BIS_fnc_selectRandom;

How would one make the randomly generated number of selections from an array? For example, say our random number is 3.

_array = [variable_01, variable_02, variable_03, variable_04, variable_05];

How could we choose the random number (in this case, 3) from the above array?

 

I'm sure the answer is pretty simple - probably involves the 'count' command - but just can't quite nail it.

[davidoss 552]

//if you want to use array;
_numberArray = [0, 1, 2];
_number = selectRandom _numberArray;//0,1,or 2

//or if just generate numer
_number = floor random 3;//0,1,or 2

//your choose
//for example your _number has value 2
_array = [variable_01, variable_02, variable_03, variable_04, variable_05];
_myselect = _array select _number; // variable_03



//there are more posibilities
//you can for example just do something like that:

_array = [variable_01, variable_02, variable_03, variable_04, variable_05];
_myselect = _array select (floor random (count _array));

//or

_array = [variable_01, variable_02, variable_03, variable_04, variable_05];
_myselect = selectRandom _array;

 

[Donne 0]

Thank you for the response!

 

However, unless I'm being really silly and have misunderstood, I would like to pull a random number of variables from the array. Are the examples above only for a single variable?

 

A bit like this, I guess:

 

Random Number between 1-3 >>> that random number of variables chosen randomly from the array >>> returns a random number of random variables (so - maybe the random number would be two and we'd end up with variable_02 and variable_05, or something).

[davidoss 552]

You can select one index from array using select.

But you can make  a simply loop

or function to get random array  of indexes from defined  array.

 

 private _fnc_getrandindexes = {
 
	params [ ["_array",[],[[]]], ["_indexcnt",1,[0]] ];
	
	if (_array isEqualTo []) exitWith {
		//exit if passed _array is empty or not passed, if _indexcnt is not passed using 1
		diag_log format ["_fnc_getrandindexes: Passed array is empty: %1 - exiting...",str _array]; 
	};
	
	//define output
	private _return_array = [];
	
	//some other prevents
	if (_indexcnt isEqualTo 0) then {_indexcnt = 1};
	if (_indexcnt > count _array) then {_indexcnt = count _array};
	if (_indexcnt isEqualTo (count _array)) exitWith {
		// exit with shuffled array if indexes count == _indexcnt
		_return_array = _array call BIS_fnc_arrayShuffle;
		_return_array
	};
	//loop
	for "_i" from 1 to _indexcnt do {

		private _randindex = selectRandom _array;
		_return_array pushBack _randindex;
		_array = _array - [_randindex];
	};
	//return
	_return_array
};


_array = [variable_01, variable_02, variable_03, variable_04, variable_05];
private _myrandomindxcnt = floor (random (count _array));

private _mynewarray = [_array, _myrandomindxcnt] call _fnc_getrandindexes;
//or if you want to change existing array
_array = [_array, _myrandomindxcnt] call _fnc_getrandindexes;

 

[Donne 0]

Thank you, Davidoss - I think it makes sense to me, a bit, now! :)