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163 lines
8.0 KiB
Plaintext
163 lines
8.0 KiB
Plaintext
/*
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* Author: Glowbal, Ruthberg
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*
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* Handles advanced ballistics for (BulletBase) 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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* Public: No
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*/
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#include "script_component.hpp"
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private ["_unit", "_weapon", "_mode", "_ammo", "_magazine", "_caliber", "_bullet", "_abort", "_index", "_opticsName", "_opticType", "_bulletTraceVisible", "_temperature", "_barometricPressure", "_atmosphereModel", "_bulletMass", "_bulletLength", "_airFriction", "_dragModel", "_muzzleVelocity", "_muzzleVelocityShift", "_bulletVelocity", "_bulletSpeed", "_bulletLength", "_barrelTwist", "_twistDirection", "_stabilityFactor", "_transonicStabilityCoef", "_ballisticCoefficients", "_velocityBoundaries"];
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_unit = _this select 0;
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_weapon = _this select 1;
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_mode = _this select 3;
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_ammo = _this select 4;
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_magazine = _this select 5;
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_bullet = _this select 6;
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_abort = false;
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if (!hasInterface) exitWith {};
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if (!alive _bullet) exitWith {};
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if (!GVAR(enabled)) exitWith {};
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if (!([_unit] call EFUNC(common,isPlayer))) exitWith {};
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if (underwater _unit) exitWith {};
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if (!(_ammo isKindOf "BulletBase")) exitWith {};
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if (_unit distance ACE_player > GVAR(simulationRadius)) exitWith {};
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if (GVAR(onlyActiveForLocalPlayers) && !(local _unit)) then {
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if (GVAR(alwaysSimulateForSnipers)) then {
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// The shooter is non local
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if (currentWeapon _unit == primaryWeapon _unit && count primaryWeaponItems _unit > 2) then {
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_opticsName = (primaryWeaponItems _unit) select 2;
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_opticType = getNumber(configFile >> "cfgWeapons" >> _opticsName >> "ItemInfo" >> "opticType");
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_abort = _opticType != 2; // We only abort if the non local shooter is not a sniper
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};
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} else {
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_abort = true;
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};
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};
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//if (!GVAR(vehicleGunnerEnabled) && !(_unit isKindOf "Man")) then { _abort = true; }; // TODO: We currently do not have firedEHs on vehicles
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if (GVAR(disabledInFullAutoMode) && getNumber(configFile >> "cfgWeapons" >> _weapon >> _mode >> "autoFire") == 1) then { _abort = true; };
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if (_abort || !(GVAR(extensionAvailable))) exitWith {
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[_bullet, getNumber(configFile >> "cfgAmmo" >> _ammo >> "airFriction")] call EFUNC(winddeflection,updateTrajectoryPFH);
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};
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_airFriction = getNumber(configFile >> "cfgAmmo" >> _ammo >> "airFriction");
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_bulletVelocity = velocity _bullet;
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_muzzleVelocity = vectorMagnitude _bulletVelocity;
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if (GVAR(barrelLengthInfluenceEnabled)) then {
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_muzzleVelocityShift = [_ammo, _weapon, _muzzleVelocity] call FUNC(calculateBarrelLengthVelocityShift);
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if (_muzzleVelocityShift != 0) then {
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_bulletVelocity = _bulletVelocity vectorAdd ((vectorNormalized _bulletVelocity) vectorMultiply (_muzzleVelocityShift));
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_bullet setVelocity _bulletVelocity;
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_muzzleVelocity = _muzzleVelocity + _muzzleVelocityShift;
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};
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};
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if (GVAR(ammoTemperatureEnabled)) then {
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_temperature = GET_TEMPERATURE_AT_HEIGHT((getPosASL _unit) select 2);
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_muzzleVelocityShift = [_ammo, _temperature] call FUNC(calculateAmmoTemperatureVelocityShift);
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if (_muzzleVelocityShift != 0) then {
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_bulletVelocity = _bulletVelocity vectorAdd ((vectorNormalized _bulletVelocity) vectorMultiply (_muzzleVelocityShift));
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_bullet setVelocity _bulletVelocity;
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_muzzleVelocity = _muzzleVelocity + _muzzleVelocityShift;
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};
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};
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_bulletTraceVisible = false;
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if (GVAR(bulletTraceEnabled) && cameraView == "GUNNER") then {
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if (currentWeapon ACE_player in ["ACE_Vector", "Binocular", "Rangefinder", "Laserdesignator"]) then {
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_bulletTraceVisible = true;
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} else {
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if (currentWeapon ACE_player == primaryWeapon ACE_player && count primaryWeaponItems ACE_player > 2) then {
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_opticsName = (primaryWeaponItems ACE_player) select 2;
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_opticType = getNumber(configFile >> "cfgWeapons" >> _opticsName >> "ItemInfo" >> "opticType");
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_bulletTraceVisible = _opticType == 2;
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};
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};
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};
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_caliber = getNumber(configFile >> "cfgAmmo" >> _ammo >> "ACE_caliber");
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_bulletLength = getNumber(configFile >> "cfgAmmo" >> _ammo >> "ACE_bulletLength");
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_bulletMass = getNumber(configFile >> "cfgAmmo" >> _ammo >> "ACE_bulletMass");
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_barrelTwist = getNumber(configFile >> "cfgWeapons" >> _weapon >> "ACE_barrelTwist");
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_stabilityFactor = 1.5;
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if (_caliber > 0 && _bulletLength > 0 && _bulletMass > 0 && _barrelTwist > 0) then {
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_temperature = GET_TEMPERATURE_AT_HEIGHT((getPosASL _unit) select 2);
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_barometricPressure = ((getPosASL _bullet) select 2) call EFUNC(weather,calculateBarometricPressure);
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_stabilityFactor = [_caliber, _bulletLength, _bulletMass, _barrelTwist, _muzzleVelocity, _temperature, _barometricPressure] call FUNC(calculateStabilityFactor);
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};
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_twistDirection = 1;
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if (isNumber(configFile >> "cfgWeapons" >> _weapon >> "ACE_twistDirection")) then {
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_twistDirection = getNumber(configFile >> "cfgWeapons" >> _weapon >> "ACE_twistDirection");
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if (_twistDirection != -1 && _twistDirection != 0 && _twistDirection != 1) then {
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_twistDirection = 1;
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};
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};
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_transonicStabilityCoef = 0.5;
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if (isNumber(configFile >> "cfgAmmo" >> _ammo >> "ACE_transonicStabilityCoef")) then {
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_transonicStabilityCoef = getNumber(configFile >> "cfgAmmo" >> _ammo >> "ACE_transonicStabilityCoef");
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};
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_dragModel = 1;
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_ballisticCoefficients = [];
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_velocityBoundaries = [];
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_atmosphereModel = "ICAO";
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if (isNumber(configFile >> "cfgAmmo" >> _ammo >> "ACE_dragModel")) then {
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_dragModel = getNumber(configFile >> "cfgAmmo" >> _ammo >> "ACE_dragModel");
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if (!(_dragModel in [1, 2, 5, 6, 7, 8])) then {
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_dragModel = 1;
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};
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};
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if (isArray(configFile >> "cfgAmmo" >> _ammo >> "ACE_ballisticCoefficients")) then {
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_ballisticCoefficients = getArray(configFile >> "cfgAmmo" >> _ammo >> "ACE_ballisticCoefficients");
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};
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if (isArray(configFile >> "cfgAmmo" >> _ammo >> "ACE_velocityBoundaries")) then {
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_velocityBoundaries = getArray(configFile >> "cfgAmmo" >> _ammo >> "ACE_velocityBoundaries");
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};
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if (isText(configFile >> "cfgAmmo" >> _ammo >> "ACE_standardAtmosphere")) then {
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_atmosphereModel = getText(configFile >> "cfgAmmo" >> _ammo >> "ACE_standardAtmosphere");
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};
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GVAR(currentbulletID) = (GVAR(currentbulletID) + 1) % 10000;
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"ace_advanced_ballistics" callExtension format["new:%1:%2:%3:%4:%5:%6:%7:%8:%9:%10:%11:%12:%13:%14:%15:%16:%17:%18", GVAR(currentbulletID), _airFriction, _ballisticCoefficients, _velocityBoundaries, _atmosphereModel, _dragModel, _stabilityFactor, _twistDirection, _muzzleVelocity, _transonicStabilityCoef, getPosASL _bullet, EGVAR(weather,Latitude), EGVAR(weather,currentTemperature), EGVAR(weather,Altitude), EGVAR(weather,currentHumidity), overcast, floor(time), time - floor(time)];
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[{
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private ["_index", "_bullet", "_caliber", "_bulletTraceVisible", "_bulletVelocity", "_bulletPosition"];
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EXPLODE_4_PVT(_this select 0,_bullet,_caliber,_bulletTraceVisible,_index);
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_bulletVelocity = velocity _bullet;
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_bulletPosition = getPosASL _bullet;
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_bulletSpeed = vectorMagnitude _bulletVelocity;
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if (!alive _bullet || _bulletSpeed < 100) exitWith {
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[_this select 1] call cba_fnc_removePerFrameHandler;
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};
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if (_bulletTraceVisible && _bulletSpeed > 600) then {
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drop ["\A3\data_f\ParticleEffects\Universal\Refract","","Billboard",1,0.1,getPos _bullet,[0,0,0],0,1.275,1,0,[0.4*_caliber,0.2*_caliber],[[0,0,0,0.6],[0,0,0,0.4]],[1,0],0,0,"","",""];
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};
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call compile ("ace_advanced_ballistics" callExtension format["simulate:%1:%2:%3:%4:%5:%6:%7", _index, _bulletVelocity, _bulletPosition, ACE_wind, ASLToATL(_bulletPosition) select 2, floor(time), time - floor(time)]);
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}, GVAR(simulationInterval), [_bullet, _caliber, _bulletTraceVisible, GVAR(currentbulletID)]] call CBA_fnc_addPerFrameHandler;
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