ACE3/addons/dragging/functions/fnc_handleScrollWheel.sqf

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/*
* Author: L-H, commy2
*
* Handles raising and lowering the dragged weapon to be able to place it on top of objects.
*
* Argument:
* 0: Scroll amount (Number)
*
* Return value:
* Handled or not. (Bool)
*/
#include "script_component.hpp"
// requires modifier key to be hold down
if (GETMVAR(ACE_Modifier,0) == 0) exitWith {false};
private "_unit";
_unit = ACE_player;
// EH is always assigned. Exit and don't overwrite input if not carrying
if !(_unit getVariable [QGVAR(isCarrying), false]) exitWith {false};
private "_scrollAmount";
_scrollAmount = _this select 0;
// move carried item 15 cm per scroll interval
_scrollAmount = _scrollAmount * 0.15;
private "_carriedItem";
_carriedItem = _unit getVariable [QGVAR(carriedObject),objNull];
private ["_position", "_maxHeight"];
_position = getPosATL _carriedItem;
_maxHeight = (_unit ModelToWorld [0,0,0]) select 2;
_position set [2, ((_position select 2) + _scrollAmount min (_maxHeight + 1.5)) max _maxHeight];
// move up/down object and reattach at current position
detach _carriedItem;
_carriedItem setPosATL _position;
_carriedItem attachTo [_unit];
true