ACE3/addons/reload/functions/fnc_displayAmmo.sqf

/*
 * Author: commy2 and esteldunedain
 * Display the ammo of the currently loaded magazine of the target or count rifle grenades.
 *
 * Argument:
 * 0: Target <OBJECT>
 *
 * Return value:
 * Nothing
 */
#include "script_component.hpp"

#define COUNT_BARS 12

EXPLODE_1_PVT(_this,_target);

private ["_weapon","_muzzle","_magazine","_showNumber","_ammo","_maxRounds","_count","_text","_color","_picture", "_a", "_string"];

_weapon = currentWeapon _target;
_muzzle = currentMuzzle _target;
_magazine = currentMagazine _target;

// currentWeapon returns "" for static weapons before they are shot once
if (_target isKindOf "StaticWeapon") then {
  if (_weapon == "") then {
    if (count (weapons _target) == 1) then {
      _weapon = (weapons _target) select 0;
      _muzzle = _weapon;
    };
  };

  if (_magazine == "") then {
    // Try to get magazine using magazinesAmmoFull
    private ["_magazines"];
    _magazines = magazinesAmmoFull _target;
    {
        if (_x select 2) exitWith {
            _magazine = _x select 0;
        };
    } forEach _magazines;
  };
};

if (_magazine == "") exitWith {};
if (_weapon == "") exitWith {};
if (typeName _muzzle != "STRING") then {_muzzle = _weapon};

_showNumber = false;
_ammo = 0;
_maxRounds = 1;
_count = 0;

// not grenade launcher
if (_muzzle == _weapon) then {
  _maxRounds = getNumber (configFile >> "CfgMagazines" >> _magazine >> "count") max 1;

  _ammo = _target ammo _weapon;
  if (_maxRounds >= COUNT_BARS) then {
    _count = round (COUNT_BARS * _ammo / _maxRounds);

    if (_ammo > 0) then {_count = _count max 1};
    if (_ammo < _maxRounds) then {_count = _count min (COUNT_BARS - 1)};
  } else {
    _count = _ammo;
  };

// grenade launcher
} else {
  _showNumber = true;

  _count = if (_magazine != "") then {
    {_x == _magazine} count (magazines _target + [_magazine])
  } else {
    {_x in getArray (configFile >> "CfgWeapons" >> _weapon >> _muzzle >> "Magazines")} count magazines _target
  };
};

_text = if (_showNumber) then {
  parseText format ["<t align='center' >%1x</t>", _count]
} else {
  _color = [
    2 * (1 - _ammo / _maxRounds) min 1,
    2 * _ammo / _maxRounds min 1,
    00
  ];

  _string = "";
  for "_a" from 1 to _count do {
    _string = _string + "|";
  };
  _text = [_string, _color] call EFUNC(common,stringToColoredText);

  _string = "";
  for "_a" from (_count + 1) to (_maxRounds min COUNT_BARS) do {
    _string = _string + "|";
  };

  composeText [
    _text,
    [_string, [0.5, 0.5, 0.5]] call EFUNC(common,stringToColoredText)
  ]
};

_picture = getText (configFile >> "CfgMagazines" >> _magazine >> "picture");

[_text, _picture] call EFUNC(common,displayTextPicture);