Count number of players in an area.

[__d0ct0r__ 0]

I am making a multiplayer mission. In this mission, I need to count the number of players in an area (inside of a circle marker). Could someone inform me how I can do this. Many thanks.

[Tankbuster 1733]

_playerswithincircle = allplayers select { (_x distance2d _centreposofmycircle) < _radiusofmycircle };

 

[Harzach 2507]

Tanky's solution also works to get players with a radius of a position/object/etc.

If you are working with other shapes of markers/triggers, use inArea:
 

//marker
_playersInArea = allplayers select {_x inArea "markerName"}; 

//trigger
_playersInArea = allplayers select {_x inArea triggerName}; 

 

[Tankbuster 1733]

Or, if the players are all west and no other west units will be there...

 

_playerswithincircle = (_centreposofmycircle nearentities ["SoldierWB", _radiusofmycircle])

Note this method won't get deads or mounteds.

[Harzach 2507]

Lots of options, depending on case!

[Tankbuster 1733]

Just now, Harzach said:

Lots of options, depending on case!

Yes. I've run them all of them through the debug timer thingy, there wasn't an appreciable difference in CPU cost.

[pierremgi 4739]

you can even use inArea without marker or trigger, just your data of area...

 

or even:

allPlayers inAreaArray location_1;

 

or the forgotten but very nice:

position inPolygon polygon

[Janez 507]

Hah, I love it, just like the good old days.