ACE3/addons/overheating/functions/fnc_overheat.sqf
jonpas 742626ff1a
General - Relative script_component.hpp includes (#9378)
Co-authored-by: PabstMirror <pabstmirror@gmail.com>
2023-09-12 20:58:10 +02:00

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#include "..\script_component.hpp"
/*
* Author: Commy2 and esteldunedain
* Handle weapon fire, heat up the weapon
*
* Arguments:
* 0: Unit <OBJECT>
* 1: Weapon <STRING>
* 3: Muzzle <STRING>
* 4: Ammo <STRING>
* 5: Magazine <STRING>
* 6: Projectile <OBJECT>
*
* Return Value:
* None
*
* Example:
* [bob, "weapon", "muzzle", "ammo", "magazine", bullet] call ace_overheating_fnc_overheat
*
* Public: No
*/
params ["_unit", "_weapon", "", "", "_ammo", "", "_projectile"];
TRACE_4("params",_unit,_weapon,_ammo,_projectile);
BEGIN_COUNTER(overheat);
// Get bullet parameters
private _energyIncrement = GVAR(cacheAmmoData) get _ammo;
if (isNil "_energyIncrement") then {
private _bulletMass = getNumber (configFile >> "CfgAmmo" >> _ammo >> "ACE_BulletMass");
if (_bulletMass == 0) then {
// If the bullet mass is not configured, estimate it
_bulletMass = 3.4334 + 0.5171 * (getNumber (configFile >> "CfgAmmo" >> _ammo >> "hit") + getNumber (configFile >> "CfgAmmo" >> _ammo >> "caliber"));
};
// Projectile motion is roughly equal to Barrel heat
// Ref: https://en.wikipedia.org/wiki/Physics_of_firearms
// Muzzle Engergy = 1/2 * m * v^2 = (1/2 * 0.001 g/kg * bulletMass (grams) * v^2)
// Multiple by 3 becase we only calc every 3rd bullet: (3 * 1/2 * 0.001) = 0.0015
_energyIncrement = GVAR(heatCoef) * 0.0015 * _bulletMass * (vectorMagnitudeSqr velocity _projectile);
GVAR(cacheAmmoData) set [_ammo, _energyIncrement];
};
// Increase overheating depending on how obstrusive is the current supressor,
// if any. Typical arma supressors have visibleFire=0.5 and audibleFire=0.3,
// so they produce x2.1 overheating
private _suppressor = switch (_weapon) do {
case (primaryWeapon _unit) : {(primaryWeaponItems _unit) select 0};
case (handgunWeapon _unit) : {(handgunItems _unit) select 0};
default {""};
};
if (_suppressor != "" && {GVAR(suppressorCoef) > 0}) then {
private _suppressorCoef = GVAR(cacheSilencerData) get _suppressor;
if (isNil "_suppressorCoef") then {
private _config = configFile >> "CfgWeapons" >> _suppressor >> "ItemInfo" >> "AmmoCoef";
_suppressorCoef = GVAR(suppressorCoef) * (1 + (1 - getNumber (_config >> "audibleFire")) + (1 - getNumber (_config >> "visibleFire")));
GVAR(cacheSilencerData) set [_suppressor, _suppressorCoef];
};
_energyIncrement = _energyIncrement * _suppressorCoef;
};
TRACE_1("heat",_energyIncrement);
[_unit, _weapon, _energyIncrement] call FUNC(updateTemperature);
END_COUNTER(overheat);