ACE3/addons/reload/functions/fnc_canLinkBelt.sqf

/*
 * Author: esteldunedain
 * Check if the target has an MG equiped with belt system that the player can link
 *
 * Argument:
 * 0: Player <OBJECT>
 * 1: Target <OBJECT>
 *
 * Return value:
 * Can link belt<BOOL>
 */
#include "script_component.hpp"

EXPLODE_2_PVT(_this,_player,_target);

if (vehicle _target != _target) exitWith {false};

private ["_magazineCfg","_magazineType"];
_magazineType = currentMagazine _target;
_magazineCfg = configFile >> "CfgMagazines" >> _magazineType;
if (getNumber (_magazineCfg >> "ACE_isBelt") == 0) exitWith {false};

// Check if the ammo is not empty or full
private "_ammoCount";
_ammoCount = _target ammo currentWeapon _target;

// Exit if the belt is full or empty
if ((_ammoCount == 0)  || (getNumber (_magazineCfg >> "count") - _ammoCount) == 0) exitWith {false};

// Check if the player has any of the same magazines
// Calculate max ammo
private "_maxAmmo";
_maxAmmo = 0;

{
    _maxAmmo = _maxAmmo max (_x select 1);
} forEach ([magazinesAmmo _player, {_this select 0 == _magazineType}] call EFUNC(common,filter));

_maxAmmo > 0