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Re #139 (Car overall rating and data sheet) Completed 1st proposal : top speed, tire grip and aero grip sliders are now up and running

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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
This commit is contained in:
pouillot 2011-01-05 23:00:24 +00:00
parent 4b00c8649a
commit 80c59eb4c4
3 changed files with 26 additions and 23 deletions
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10
src/libs/racescreens/carselect.cpp
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@ -233,7 +233,7 @@ void RmCarSelectMenu::resetCarDataSheet(const std::string& strSelCarId)
ossSpecValue.str().c_str()); ossSpecValue.str().c_str());
ossSpecValue.str(""); ossSpecValue.str("");
ossSpecValue << (long)pSelCar->getMaxPower() << " bhp (" ossSpecValue << (long)(pSelCar->getMaxPower() / 75 / G) << " bhp ("
<< (long)(pSelCar->getMaxPowerSpeed() * 30.0 / PI) << " rpm)"; << (long)(pSelCar->getMaxPowerSpeed() * 30.0 / PI) << " rpm)";
GfuiLabelSetText(GetMenuHandle(), GetDynamicControlId("MaxPowerLabel"), GfuiLabelSetText(GetMenuHandle(), GetDynamicControlId("MaxPowerLabel"),
ossSpecValue.str().c_str()); ossSpecValue.str().c_str());
@ -255,16 +255,16 @@ void RmCarSelectMenu::resetCarDataSheet(const std::string& strSelCarId)
GfuiProgressbarSetValue(GetMenuHandle(), GetDynamicControlId("TopSpeedProgress"), GfuiProgressbarSetValue(GetMenuHandle(), GetDynamicControlId("TopSpeedProgress"),
pSelCar->getTopSpeed() * 3.6f); pSelCar->getTopSpeed() * 3.6f);
GfuiProgressbarSetValue(GetMenuHandle(), GetDynamicControlId("PowerMassRatioProgress"), GfuiProgressbarSetValue(GetMenuHandle(), GetDynamicControlId("PowerMassRatioProgress"),
pSelCar->getMaxPower() / pSelCar->getMass()); pSelCar->getMaxPower() / 75 / G / pSelCar->getMass());
GfuiProgressbarSetValue(GetMenuHandle(), GetDynamicControlId("HighSpeedGripProgress"),
pSelCar->getLowSpeedGrip());
GfuiProgressbarSetValue(GetMenuHandle(), GetDynamicControlId("LowSpeedGripProgress"), GfuiProgressbarSetValue(GetMenuHandle(), GetDynamicControlId("LowSpeedGripProgress"),
pSelCar->getLowSpeedGrip());
GfuiProgressbarSetValue(GetMenuHandle(), GetDynamicControlId("HighSpeedGripProgress"),
pSelCar->getHighSpeedGrip()); pSelCar->getHighSpeedGrip());
GfuiProgressbarSetValue(GetMenuHandle(), GetDynamicControlId("CorneringProgress"), GfuiProgressbarSetValue(GetMenuHandle(), GetDynamicControlId("CorneringProgress"),
pSelCar->getInvertedZAxisInertia()); pSelCar->getInvertedZAxisInertia());
GfLogDebug("%s : ts=%f, mpr=%f, lsg=%f, hsg=%f, izi=%f\n", strSelCarId.c_str(), GfLogDebug("%s : ts=%f, mpr=%f, lsg=%f, hsg=%f, izi=%f\n", strSelCarId.c_str(),
pSelCar->getTopSpeed(), pSelCar->getMaxPower() / pSelCar->getMass(), pSelCar->getTopSpeed()*3.6f, pSelCar->getMaxPower() / 75 / G / pSelCar->getMass(),
pSelCar->getLowSpeedGrip(), pSelCar->getHighSpeedGrip(), pSelCar->getLowSpeedGrip(), pSelCar->getHighSpeedGrip(),
pSelCar->getInvertedZAxisInertia()); pSelCar->getInvertedZAxisInertia());
} }

29
src/libs/tgfdata/cars.cpp
View file

@ -313,7 +313,7 @@ void GfCar::load(void* hparmCar)
_fMaxTorque = fTorque; _fMaxTorque = fTorque;
_fMaxTorqueSpeed = fSpeed; _fMaxTorqueSpeed = fSpeed;
} }
const tdble fPower = (tdble)(fTorque * fSpeed / (75 * G)); const tdble fPower = (tdble)(fTorque * fSpeed);
if (fPower > _fMaxPower) if (fPower > _fMaxPower)
{ {
_fMaxPower = fPower; _fMaxPower = fPower;
@ -328,13 +328,12 @@ void GfCar::load(void* hparmCar)
const tdble fMuRear = const tdble fMuRear =
(GfParmGetNum(hparmCar, SECT_REARRGTWHEEL, PRM_MU, (char*)NULL, 1.0) (GfParmGetNum(hparmCar, SECT_REARRGTWHEEL, PRM_MU, (char*)NULL, 1.0)
+ GfParmGetNum(hparmCar, SECT_REARLFTWHEEL, PRM_MU, (char*)NULL, 1.0)) / 2.0f; + GfParmGetNum(hparmCar, SECT_REARLFTWHEEL, PRM_MU, (char*)NULL, 1.0)) / 2.0f;
// Work in progress. _fLowSpeedGrip =
_fLowSpeedGrip = 0.0f; (_fFrontRearMassRatio * fMuFront + (1.0f - _fFrontRearMassRatio) * fMuRear) * G;
// (_fFrontRearMassRatio * fMuFront + (1.0f - _fFrontRearMassRatio) * fMuRear) * G;
// "Aerodynamic = High speed" grip (same + with aero down-force). // "Aerodynamic = High speed" grip (same + with aero down-force).
// TODO: Check formula (F/R Clift repartition "guessed" from Kristof's) // TODO: Check formula (F/R Clift repartition "guessed" from Kristof's ; sure it's wrong ;-)
const tdble fRefCarSpeed = 200 * 1000 / 3600.0f; const tdble fRefCarSpeed = 200 / 3.6f;
const tdble fFrontWingArea = const tdble fFrontWingArea =
GfParmGetNum(hparmCar, SECT_FRNTWING, PRM_WINGAREA, (char*)NULL, 0.0); GfParmGetNum(hparmCar, SECT_FRNTWING, PRM_WINGAREA, (char*)NULL, 0.0);
const tdble fRearWingArea = const tdble fRearWingArea =
@ -349,19 +348,19 @@ void GfCar::load(void* hparmCar)
GfParmGetNum(hparmCar, SECT_AERODYNAMICS, PRM_RCL, (char*)NULL, 0.0); GfParmGetNum(hparmCar, SECT_AERODYNAMICS, PRM_RCL, (char*)NULL, 0.0);
const double fTotalFrontClift = 2 * fFrontClift + 4.92 * fFrontWingArea * sin(fFrontWingAngle); const double fTotalFrontClift = 2 * fFrontClift + 4.92 * fFrontWingArea * sin(fFrontWingAngle);
const double fTotalRearClift = 2 * fRearClift + 4.92 * fRearWingArea * sin(fRearWingAngle); const double fTotalRearClift = 2 * fRearClift + 4.92 * fRearWingArea * sin(fRearWingAngle);
_fHighSpeedGrip = _fLowSpeedGrip;
// Work in progress. // Work in progress.
// _fHighSpeedGrip += _fHighSpeedGrip =
// fRefCarSpeed * fRefCarSpeed fRefCarSpeed * fRefCarSpeed
// * (tdble)(_fFrontRearMassRatio * fTotalFrontClift * (tdble)(_fFrontRearMassRatio * fTotalFrontClift * fMuFront
// + (1.0 - _fFrontRearMassRatio) * fTotalRearClift) * G; + (1.0 - _fFrontRearMassRatio) * fTotalRearClift * fMuRear) * G / _fMass;
// Inverse of the inertia around the Z axis. // Inverse of the inertia around the Z axis.
const tdble fMassRepCoef = GfParmGetNum(hparmCar, SECT_CAR, PRM_CENTR, (char*)NULL, 1.0); const tdble fMassRepCoef = GfParmGetNum(hparmCar, SECT_CAR, PRM_CENTR, (char*)NULL, 1.0);
const tdble fCarLength = GfParmGetNum(hparmCar, SECT_CAR, PRM_LEN, (char*)NULL, 4.7f); const tdble fCarLength = GfParmGetNum(hparmCar, SECT_CAR, PRM_LEN, (char*)NULL, 4.7f);
const tdble fCarWidth = GfParmGetNum(hparmCar, SECT_CAR, PRM_WIDTH, (char*)NULL, 1.9f); const tdble fCarWidth = GfParmGetNum(hparmCar, SECT_CAR, PRM_WIDTH, (char*)NULL, 1.9f);
_fInvertedZAxisInertia = // Stolen from Simu V2.1, car.cpp, SimCarConfig() _fInvertedZAxisInertia = // Stolen from Simu V2.1, car.cpp, SimCarConfig()
12.0f / (_fMass * fMassRepCoef * fMassRepCoef * (fCarWidth * fCarWidth + fCarLength * fCarLength)); 12.0f / (_fMass * fMassRepCoef * fMassRepCoef)
/ (fCarWidth * fCarWidth + fCarLength * fCarLength);
// Theorical top speed on a flat road, assuming the gears are tuned accordingly. // Theorical top speed on a flat road, assuming the gears are tuned accordingly.
const tdble fFrontArea = const tdble fFrontArea =
@ -377,9 +376,9 @@ void GfCar::load(void* hparmCar)
muRollRes * _fMass * G / (Cd + muRollRes * (tdble)(fTotalFrontClift + fTotalRearClift)); muRollRes * _fMass * G / (Cd + muRollRes * (tdble)(fTotalFrontClift + fTotalRearClift));
const double q = eff * _fMaxPower / (Cd + muRollRes * (tdble)(fTotalFrontClift + fTotalRearClift)); const double q = eff * _fMaxPower / (Cd + muRollRes * (tdble)(fTotalFrontClift + fTotalRearClift));
// Work in progress. // Work in progress.
_fTopSpeed = 0.0f; _fTopSpeed =
// (tdble)pow(q/2+sqrt(q*q/4+(pp*pp*pp)/27), 1.0/3) (tdble)pow(q/2+sqrt(q*q/4+pp*pp*pp/27), 1.0/3)
// - (tdble)pow(-q/2+sqrt(q*q/4+(pp*pp*pp)/27), 1.0/3); - (tdble)pow(-q/2+sqrt(q*q/4+pp*pp*pp/27), 1.0/3);
} }
const std::string& GfCar::getId() const const std::string& GfCar::getId() const

10
src/libs/tgfdata/cars.h
View file

@ -80,8 +80,12 @@ protected:
EDriveTrain _eDriveTrain; EDriveTrain _eDriveTrain;
unsigned _nGears; // Number of gears. unsigned _nGears; // Number of gears.
bool _bTurboCharged; bool _bTurboCharged; // TODO: Move to an enum (Turbo, Compressor, ...)
tdble _fMaxPower, _fMaxPowerSpeed; // Engine max power (bhp) and associated engine speed. // unsigned _nCylinders; // TODO
// enum { eV, eW, eFlat, eStraight, eTurbine } EEngineShape;
// EEngineShape _eEngineShape; // TODO
// tdble fEngineCapacity; // TODO
tdble _fMaxPower, _fMaxPowerSpeed; // Engine max power (SI) and associated engine speed.
tdble _fMaxTorque, _fMaxTorqueSpeed; // Engine max torque (Nm) and associated engine speed. tdble _fMaxTorque, _fMaxTorqueSpeed; // Engine max torque (Nm) and associated engine speed.
tdble _fMass; // Total mass (kg). tdble _fMass; // Total mass (kg).
tdble _fFrontRearMassRatio; // Front to rear mass ratio (no unit, inside ]0,1[). tdble _fFrontRearMassRatio; // Front to rear mass ratio (no unit, inside ]0,1[).
@ -89,7 +93,7 @@ protected:
tdble _fTopSpeed; // Theorical top speed (m/s) tdble _fTopSpeed; // Theorical top speed (m/s)
tdble _fLowSpeedGrip; // Mechanical grip (~mu*g, but with front/rear mass repartition) tdble _fLowSpeedGrip; // Mechanical grip (~mu*g, but with front/rear mass repartition)
tdble _fHighSpeedGrip; // Aerodynamic grip (same + with aero down-force) tdble _fHighSpeedGrip; // Aerodynamic grip (same + with aero down-force)
tdble _fInvertedZAxisInertia; tdble _fInvertedZAxisInertia; // (SI)
}; };
class TGFDATA_API GfCars class TGFDATA_API GfCars