ACE3/addons/cargo/functions/fnc_paradropItem.sqf
2018-04-09 22:48:58 -05:00

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/*
* Author: marc_book, commy2, CAA-Picard
* Unload and paradrop object from plane or helicopter.
*
* Arguments:
* 0: Object <OBJECT>
* 1: Vehicle <OBJECT>
*
* Return Value:
* Object unloaded <BOOL>
*
* Example:
* [object, vehicle] call ace_cargo_fnc_paradropItem
*
* Public: No
*/
#include "script_component.hpp"
params ["_item", "_vehicle"];
TRACE_2("params",_item,_vehicle);
private _loaded = _vehicle getVariable [QGVAR(loaded), []];
if !(_item in _loaded) exitWith {false};
// unload item from cargo
_loaded deleteAt (_loaded find _item);
_vehicle setVariable [QGVAR(loaded), _loaded, true];
private _cargoSpace = [_vehicle] call FUNC(getCargoSpaceLeft);
private _itemSize = [_item] call FUNC(getSizeItem);
_vehicle setVariable [QGVAR(space), (_cargoSpace + _itemSize), true];
(boundingBoxReal _vehicle) params ["_bb1", "_bb2"];
private _distBehind = ((_bb1 select 1) min (_bb2 select 1)) - 4; // 4 meters behind max bounding box
TRACE_1("",_distBehind);
private _posBehindVehicleAGL = _vehicle modelToWorld [0, _distBehind, -2];
private _itemObject = if (_item isEqualType objNull) then {
detach _item;
// hideObjectGlobal must be executed before setPos to ensure light objects are rendered correctly
// do both on server to ensure they are executed in the correct order
[QGVAR(serverUnload), [_item, _posBehindVehicleAGL]] call CBA_fnc_serverEvent;
_item
} else {
private _newItem = createVehicle [_item, _posBehindVehicleAGL, [], 0, "NONE"];
_newItem setPosASL (AGLtoASL _posBehindVehicleAGL);
_newItem
};
_itemObject setVelocity ((velocity _vehicle) vectorAdd ((vectorNormalized (vectorDir _vehicle)) vectorMultiply -5));
// open parachute and ir light effect
[{
params ["_item"];
if (isNull _item || {getPos _item select 2 < 1}) exitWith {};
private _parachute = createVehicle ["B_Parachute_02_F", [0,0,0], [], 0, "CAN_COLLIDE"];
// cannot use setPos on parachutes without them closing down
_parachute attachTo [_item, [0,0,0]];
detach _parachute;
private _velocity = velocity _item;
_item attachTo [_parachute, [0,0,1]];
_parachute setVelocity _velocity;
private _light = "Chemlight_yellow" createVehicle [0,0,0];
_light attachTo [_item, [0,0,0]];
}, [_itemObject], 0.7] call CBA_fnc_waitAndExecute;
// smoke effect when crate landed
[{
(_this select 0) params ["_item"];
if (isNull _item) exitWith {
[_this select 1] call CBA_fnc_removePerFrameHandler;
};
if (getPos _item select 2 < 1) then {
private _smoke = "SmokeshellYellow" createVehicle [0,0,0];
_smoke attachTo [_item, [0,0,0]];
[_this select 1] call CBA_fnc_removePerFrameHandler;
};
}, 1, [_itemObject]] call CBA_fnc_addPerFrameHandler;
[
[
LSTRING(UnloadedItem),
getText (configFile >> "CfgVehicles" >> typeOf _itemObject >> "displayName"),
getText (configFile >> "CfgVehicles" >> typeOf _vehicle >> "displayName")
],
3
] call EFUNC(common,displayTextStructured);
// Invoke listenable event
["ace_cargoUnloaded", [_item, _vehicle, "paradrop"]] call CBA_fnc_globalEvent;
true