Re #139 (Car overall rating and data sheet) Completed 1st proposal : top speed, tire grip and aero grip sliders are now up and running
git-svn-id: https://svn.code.sf.net/p/speed-dreams/code/trunk@3244 30fe4595-0a0c-4342-8851-515496e4dcbd Former-commit-id: a13b51fb2d549a65833e0cc8a507e18c9f4421a7 Former-commit-id: f74bbb9bf9eacc93cd2f02b31c5670212d10e0e5
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pouillot
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4b00c8649a
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3 changed files with 26 additions and 23 deletions
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@ -233,7 +233,7 @@ void RmCarSelectMenu::resetCarDataSheet(const std::string& strSelCarId)
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ossSpecValue.str().c_str());
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ossSpecValue.str("");
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ossSpecValue << (long)pSelCar->getMaxPower() << " bhp ("
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ossSpecValue << (long)(pSelCar->getMaxPower() / 75 / G) << " bhp ("
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<< (long)(pSelCar->getMaxPowerSpeed() * 30.0 / PI) << " rpm)";
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GfuiLabelSetText(GetMenuHandle(), GetDynamicControlId("MaxPowerLabel"),
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ossSpecValue.str().c_str());
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@ -255,16 +255,16 @@ void RmCarSelectMenu::resetCarDataSheet(const std::string& strSelCarId)
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GfuiProgressbarSetValue(GetMenuHandle(), GetDynamicControlId("TopSpeedProgress"),
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pSelCar->getTopSpeed() * 3.6f);
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GfuiProgressbarSetValue(GetMenuHandle(), GetDynamicControlId("PowerMassRatioProgress"),
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pSelCar->getMaxPower() / pSelCar->getMass());
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GfuiProgressbarSetValue(GetMenuHandle(), GetDynamicControlId("HighSpeedGripProgress"),
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pSelCar->getLowSpeedGrip());
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pSelCar->getMaxPower() / 75 / G / pSelCar->getMass());
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GfuiProgressbarSetValue(GetMenuHandle(), GetDynamicControlId("LowSpeedGripProgress"),
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pSelCar->getLowSpeedGrip());
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GfuiProgressbarSetValue(GetMenuHandle(), GetDynamicControlId("HighSpeedGripProgress"),
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pSelCar->getHighSpeedGrip());
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GfuiProgressbarSetValue(GetMenuHandle(), GetDynamicControlId("CorneringProgress"),
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pSelCar->getInvertedZAxisInertia());
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GfLogDebug("%s : ts=%f, mpr=%f, lsg=%f, hsg=%f, izi=%f\n", strSelCarId.c_str(),
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pSelCar->getTopSpeed(), pSelCar->getMaxPower() / pSelCar->getMass(),
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pSelCar->getTopSpeed()*3.6f, pSelCar->getMaxPower() / 75 / G / pSelCar->getMass(),
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pSelCar->getLowSpeedGrip(), pSelCar->getHighSpeedGrip(),
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pSelCar->getInvertedZAxisInertia());
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}
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@ -313,7 +313,7 @@ void GfCar::load(void* hparmCar)
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_fMaxTorque = fTorque;
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_fMaxTorqueSpeed = fSpeed;
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}
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const tdble fPower = (tdble)(fTorque * fSpeed / (75 * G));
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const tdble fPower = (tdble)(fTorque * fSpeed);
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if (fPower > _fMaxPower)
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{
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_fMaxPower = fPower;
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@ -328,13 +328,12 @@ void GfCar::load(void* hparmCar)
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const tdble fMuRear =
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(GfParmGetNum(hparmCar, SECT_REARRGTWHEEL, PRM_MU, (char*)NULL, 1.0)
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+ GfParmGetNum(hparmCar, SECT_REARLFTWHEEL, PRM_MU, (char*)NULL, 1.0)) / 2.0f;
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// Work in progress.
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_fLowSpeedGrip = 0.0f;
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// (_fFrontRearMassRatio * fMuFront + (1.0f - _fFrontRearMassRatio) * fMuRear) * G;
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_fLowSpeedGrip =
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(_fFrontRearMassRatio * fMuFront + (1.0f - _fFrontRearMassRatio) * fMuRear) * G;
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// "Aerodynamic = High speed" grip (same + with aero down-force).
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// TODO: Check formula (F/R Clift repartition "guessed" from Kristof's)
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const tdble fRefCarSpeed = 200 * 1000 / 3600.0f;
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// TODO: Check formula (F/R Clift repartition "guessed" from Kristof's ; sure it's wrong ;-)
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const tdble fRefCarSpeed = 200 / 3.6f;
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const tdble fFrontWingArea =
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GfParmGetNum(hparmCar, SECT_FRNTWING, PRM_WINGAREA, (char*)NULL, 0.0);
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const tdble fRearWingArea =
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@ -349,19 +348,19 @@ void GfCar::load(void* hparmCar)
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GfParmGetNum(hparmCar, SECT_AERODYNAMICS, PRM_RCL, (char*)NULL, 0.0);
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const double fTotalFrontClift = 2 * fFrontClift + 4.92 * fFrontWingArea * sin(fFrontWingAngle);
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const double fTotalRearClift = 2 * fRearClift + 4.92 * fRearWingArea * sin(fRearWingAngle);
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_fHighSpeedGrip = _fLowSpeedGrip;
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// Work in progress.
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// _fHighSpeedGrip +=
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// fRefCarSpeed * fRefCarSpeed
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// * (tdble)(_fFrontRearMassRatio * fTotalFrontClift
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// + (1.0 - _fFrontRearMassRatio) * fTotalRearClift) * G;
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_fHighSpeedGrip =
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fRefCarSpeed * fRefCarSpeed
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* (tdble)(_fFrontRearMassRatio * fTotalFrontClift * fMuFront
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+ (1.0 - _fFrontRearMassRatio) * fTotalRearClift * fMuRear) * G / _fMass;
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// Inverse of the inertia around the Z axis.
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const tdble fMassRepCoef = GfParmGetNum(hparmCar, SECT_CAR, PRM_CENTR, (char*)NULL, 1.0);
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const tdble fCarLength = GfParmGetNum(hparmCar, SECT_CAR, PRM_LEN, (char*)NULL, 4.7f);
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const tdble fCarWidth = GfParmGetNum(hparmCar, SECT_CAR, PRM_WIDTH, (char*)NULL, 1.9f);
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_fInvertedZAxisInertia = // Stolen from Simu V2.1, car.cpp, SimCarConfig()
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12.0f / (_fMass * fMassRepCoef * fMassRepCoef * (fCarWidth * fCarWidth + fCarLength * fCarLength));
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12.0f / (_fMass * fMassRepCoef * fMassRepCoef)
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/ (fCarWidth * fCarWidth + fCarLength * fCarLength);
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// Theorical top speed on a flat road, assuming the gears are tuned accordingly.
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const tdble fFrontArea =
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@ -377,9 +376,9 @@ void GfCar::load(void* hparmCar)
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muRollRes * _fMass * G / (Cd + muRollRes * (tdble)(fTotalFrontClift + fTotalRearClift));
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const double q = eff * _fMaxPower / (Cd + muRollRes * (tdble)(fTotalFrontClift + fTotalRearClift));
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// Work in progress.
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_fTopSpeed = 0.0f;
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// (tdble)pow(q/2+sqrt(q*q/4+(pp*pp*pp)/27), 1.0/3)
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// - (tdble)pow(-q/2+sqrt(q*q/4+(pp*pp*pp)/27), 1.0/3);
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_fTopSpeed =
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(tdble)pow(q/2+sqrt(q*q/4+pp*pp*pp/27), 1.0/3)
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- (tdble)pow(-q/2+sqrt(q*q/4+pp*pp*pp/27), 1.0/3);
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}
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const std::string& GfCar::getId() const
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@ -80,8 +80,12 @@ protected:
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EDriveTrain _eDriveTrain;
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unsigned _nGears; // Number of gears.
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bool _bTurboCharged;
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tdble _fMaxPower, _fMaxPowerSpeed; // Engine max power (bhp) and associated engine speed.
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bool _bTurboCharged; // TODO: Move to an enum (Turbo, Compressor, ...)
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// unsigned _nCylinders; // TODO
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// enum { eV, eW, eFlat, eStraight, eTurbine } EEngineShape;
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// EEngineShape _eEngineShape; // TODO
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// tdble fEngineCapacity; // TODO
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tdble _fMaxPower, _fMaxPowerSpeed; // Engine max power (SI) and associated engine speed.
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tdble _fMaxTorque, _fMaxTorqueSpeed; // Engine max torque (Nm) and associated engine speed.
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tdble _fMass; // Total mass (kg).
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tdble _fFrontRearMassRatio; // Front to rear mass ratio (no unit, inside ]0,1[).
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@ -89,7 +93,7 @@ protected:
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tdble _fTopSpeed; // Theorical top speed (m/s)
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tdble _fLowSpeedGrip; // Mechanical grip (~mu*g, but with front/rear mass repartition)
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tdble _fHighSpeedGrip; // Aerodynamic grip (same + with aero down-force)
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tdble _fInvertedZAxisInertia;
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tdble _fInvertedZAxisInertia; // (SI)
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};
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class TGFDATA_API GfCars
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