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67 lines
2.4 KiB
Plaintext
67 lines
2.4 KiB
Plaintext
/*
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* Author: Glowbal, Ruthberg
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* Handles wind deflection for projectiles.
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*
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* Arguments:
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* 0: unit - Object the event handler is assigned to <OBJECT>
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* 1: weapon - Fired weapon <STRING>
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* 2: muzzle - Muzzle that was used <STRING>
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* 3: mode - Current mode of the fired weapon <STRING>
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* 4: ammo - Ammo used <STRING>
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* 5: magazine - magazine name which was used <STRING>
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* 6: projectile - Object of the projectile that was shot <OBJECT>
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*
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* Return Value:
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* Nothing
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*
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* Example:
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* [clientFiredBIS-XEH] call ace_winddeflection_fnc_handleFired
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*
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* Public: No
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*/
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#include "script_component.hpp"
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private ["_unit", "_weapon", "_ammo", "_bullet", "_airFriction", "_index"];
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_unit = _this select 0;
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if (_unit distance ACE_player > 3000) exitWith {false}; // Large enough distance to not simulate any wind deflection.
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if (!GVAR(EnableForAI) && !([_unit] call EFUNC(common,isPlayer))) exitWith {false};
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_bullet = _this select 6;
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if (_bullet isKindOf "BulletBase") then {
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[{
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private ["_bullet", "_airFriction", "_args", "_deltaT", "_bulletVelocity", "_bulletSpeed", "_trueVelocity", "_trueVelocity", "_dragRef", "_drag", "_accelRef", "_accel"];
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_args = _this select 0;
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_bullet = _args select 0;
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_airFriction = _args select 1;
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_time = _args select 2;
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if (!alive _bullet) exitwith {
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[_this select 1] call cba_fnc_removePerFrameHandler;
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};
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_deltaT = time - _time;
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_args set[2, time];
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_bulletVelocity = velocity _bullet;
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_bulletSpeed = vectorMagnitude _bulletVelocity;
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if (vectorMagnitude ACE_wind > 0) then {
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_trueVelocity = _bulletVelocity vectorDiff ACE_wind;
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_trueSpeed = vectorMagnitude _trueVelocity;
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_dragRef = _deltaT * _airFriction * _bulletSpeed * _bulletSpeed;
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_accelRef = (vectorNormalized _bulletVelocity) vectorMultiply (_dragRef);
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_bulletVelocity = _bulletVelocity vectorDiff _accelRef;
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_drag = _deltaT * _airFriction * _trueSpeed;
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_accel = _trueVelocity vectorMultiply (_drag);
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_bulletVelocity = _bulletVelocity vectorAdd _accel;
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};
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_bullet setVelocity _bulletVelocity;
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// TODO expand with advanced ballistics functionality.
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}, 0, [_bullet, getNumber(configFile >> "cfgAmmo" >> (_this select 4) >> "airFriction"), time]] call CBA_fnc_addPerFrameHandler;
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};
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true; |