ACE3/addons/interaction/functions/fnc_isInRange.sqf

/*
 * Author: commy2
 * Check if the vehicle is in range of the player.
 *
 * Arguments:
 * 0: Vehicle <OBJECT>
 * 1: Distance in meters <NUMBER>
 *
 * Return value:
 * Vehicle in range of player <BOOL>
 *
 * Example:
 * [target, 5] call ace_interaction_fnc_isInRange
 *
 * Public: No
 */
#include "script_component.hpp"

PARAMS_2(_vehicle,_distance);

private ["_player", "_position0", "_position1"];

_player = ACE_player;

if (_vehicle isKindOf "Man") exitWith {_player distance _vehicle < _distance};

private ["_position0", "_position1"];//, "_direction"];

_position0 = getPosASL _player;
_position1 = getPosASL _vehicle;

/*
_direction = _position1 vectorDiff _position0;
_direction = _direction vectorMultiply (_distance / (vectorMagnitude _direction));

_position0 = eyePos _player;
_position1 = _position0 vectorAdd _direction;

_vehicle in lineIntersectsWith [_position0, _position1] || {_player distance _vehicle < _distance}
*/

_position0 = ATLToASL positionCameraToWorld [0, 0, 0];
_position0 set [2, (_position0 select 2) - (getTerrainHeightASL _position0 min 0)];

_position1 = ATLToASL positionCameraToWorld [0, 0, _distance];
_position1 set [2, (_position1 select 2) - (getTerrainHeightASL _position1 min 0)];

if (_vehicle in lineIntersectsWith [_position0, _position1] || {_player distance _vehicle < _distance}) then {
    true
} else {
    ["Not in Range"] call FUNC(addToTooltip);
    false
}