ACE3/addons/attach/functions/fnc_canAttach.sqf

/*
 * Author: commy2
 * Check if a unit can attach a specific item.
 *
 * Arguments:
 * 0: vehicle that it will be attached to (player or vehicle) <OBJECT>
 * 1: unit doing the attach (player) <OBJECT>
 * 2: Array empty or containing a string of the attachable item <ARRAY>
 *
 * Return Value:
 * Can Attach <BOOL>
 *
 * Example:
 * [bob, bob, ["light"]] call ace_attach_fnc_canAttach;
 *
 * Public: No
 */
#include "script_component.hpp"

PARAMS_3(_attachToVehicle,_player,_args);

private ["_itemName", "_attachLimit", "_attachedObjects","_playerPos"];

_itemName = [_args, 0, ""] call CBA_fnc_defaultParam;
_attachLimit = [6, 1] select (_player == _attachToVehicle);
_attachedObjects = _attachToVehicle getVariable [QGVAR(Objects), []];

_playerPos = (ACE_player modelToWorldVisual (ACE_player selectionPosition "pilot"));

(canStand _player) && {(_attachToVehicle distance _player) < 7} && {alive _attachToVehicle} && {(count _attachedObjects) < _attachLimit} && {_itemName in ((itemsWithMagazines _player) + [""])};