ACE3/addons/reload/functions/fnc_displayAmmo.sqf

#include "script_component.hpp"
/*
 * Author: commy2 and esteldunedain
 * Display the ammo of the currently loaded magazine of the target or count rifle grenades.
 *
 * Arguments:
 * 0: Target <OBJECT>
 *
 * Return Value:
 * None
 *
 * Example:
 * player call ace_reload_fnc_displayAmmo
 *
 * Public: No
 */

#define COUNT_BARS 12

params ["_target"];

private _isStaticWeapon = _target isKindOf "StaticWeapon";

if (_isStaticWeapon) then {
    [currentWeapon _target, currentMuzzle _target, "", currentMagazine _target]
} else {
    weaponState _target
} params ["_weapon", "_muzzle", "", "_magazine"];

// currentWeapon returns "" for static weapons before they are shot once
if (_isStaticWeapon) 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 = magazinesAmmoFull _target;

        {
            if (_x select 2) exitWith {
                _magazine = _x select 0;
            };
        } forEach _magazines;
    };

    // For static weapons the muzzle seemingly never returns anything for static weapons with/without people inside
    if (_muzzle == "") then {
        _muzzle = _weapon;
    };
};

TRACE_3("",_weapon,_muzzle,_magazine);

if ("" in [_weapon, _magazine]) exitWith {};

private _ammo = _target ammo _muzzle;
private _magazineConfig = configFile >> "CfgMagazines" >> _magazine;
private _maxRounds = getNumber (_magazineConfig >> "count") max 1;
private _count = -1; // Show a count instead of ammo bars (ignore if -1)

if (_muzzle != _weapon) then {
    // grenade launcher (or some kind of seconday muzzle)
    if (_ammo > 0) then {
        if (_maxRounds == 1) then { // singleShot so show count of identical mags available instead of ammo bars
            _count = 1 + ({_x == _magazine} count magazines _target);
        };
    } else {
        if (_maxRounds <= 3) then { // empty GL/3GL - don't have a real magazine so just show count of any compatible mag
            _magazine = "";
            private _compatibleMagazines =  [configFile >> "CfgWeapons" >> _weapon >> _muzzle] call CBA_fnc_compatibleMagazines;
            _count = {_x in _compatibleMagazines} count (magazines _target); // safe because everything is config case
         };
    };
};

private _ammoBarsStructuredText = if (_count >= 0) then {
    parseText format ["<t align='center' >%1x</t>", _count]
} else {
    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;
    };

    private _color = [((2 * (1 - _ammo / _maxRounds)) min 1), ((2 * _ammo / _maxRounds) min 1), 0];

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

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

    composeText [_text, [_string, "#808080"] call EFUNC(common,stringToColoredText)];
};


if (_isStaticWeapon) then {
    //Vehicle mags (usualy) don't have pictures, so just show the text above ammo count
    private _loadedName = getText (_magazineConfig >> "displaynameshort");
    _loadedName = parseText format ["<t align='center' >%1</t>", _loadedName];
    private _text = composeText [_loadedName, linebreak, _ammoBarsStructuredText];
    [_text] call EFUNC(common,displayTextStructured);
} else {
    if (_magazine != "") then {
        private _picture = getText (_magazineConfig >> "picture");
        [_ammoBarsStructuredText, _picture] call EFUNC(common,displayTextPicture);
    } else {
        [_ammoBarsStructuredText, 1] call EFUNC(common,displayTextStructured);
    };
};