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Add support for editing WheeledVehicle engine/differential config at runtime without full physics state rebuild

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#1348
This commit is contained in:
Wojtek Figat
2023-09-01 12:52:01 +02:00
parent b0ec8525aa
commit 5a8944a82d
4 changed files with 122 additions and 0 deletions
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104
Source/Engine/Physics/PhysX/PhysicsBackendPhysX.cpp
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@@ -2970,12 +2970,116 @@ void PhysicsBackend::UpdateVehicleWheels(WheeledVehicle* actor)
}
}
void PhysicsBackend::SetVehicleEngine(void* vehicle, const void* value)
{
auto drive = (PxVehicleDrive*)vehicle;
auto& engine = *(const WheeledVehicle::EngineSettings*)value;
switch (drive->getVehicleType())
{
case PxVehicleTypes::eDRIVE4W:
{
auto drive4W = (PxVehicleDrive4W*)drive;
PxVehicleDriveSimData4W& driveSimData = drive4W->mDriveSimData;
PxVehicleEngineData engineData;
engineData.mMOI = M2ToCm2(engine.MOI);
engineData.mPeakTorque = M2ToCm2(engine.MaxTorque);
engineData.mMaxOmega = RpmToRadPerS(engine.MaxRotationSpeed);
engineData.mDampingRateFullThrottle = M2ToCm2(0.15f);
engineData.mDampingRateZeroThrottleClutchEngaged = M2ToCm2(2.0f);
engineData.mDampingRateZeroThrottleClutchDisengaged = M2ToCm2(0.35f);
driveSimData.setEngineData(engineData);
break;
}
case PxVehicleTypes::eDRIVENW:
{
auto drive4W = (PxVehicleDriveNW*)drive;
PxVehicleDriveSimDataNW& driveSimData = drive4W->mDriveSimData;
PxVehicleEngineData engineData;
engineData.mMOI = M2ToCm2(engine.MOI);
engineData.mPeakTorque = M2ToCm2(engine.MaxTorque);
engineData.mMaxOmega = RpmToRadPerS(engine.MaxRotationSpeed);
engineData.mDampingRateFullThrottle = M2ToCm2(0.15f);
engineData.mDampingRateZeroThrottleClutchEngaged = M2ToCm2(2.0f);
engineData.mDampingRateZeroThrottleClutchDisengaged = M2ToCm2(0.35f);
driveSimData.setEngineData(engineData);
break;
}
}
}
void PhysicsBackend::SetVehicleDifferential(void* vehicle, const void* value)
{
auto drive = (PxVehicleDrive*)vehicle;
auto& differential = *(const WheeledVehicle::DifferentialSettings*)value;
switch (drive->getVehicleType())
{
case PxVehicleTypes::eDRIVE4W:
{
auto drive4W = (PxVehicleDrive4W*)drive;
PxVehicleDriveSimData4W& driveSimData = drive4W->mDriveSimData;
PxVehicleDifferential4WData differential4WData;
differential4WData.mType = (PxVehicleDifferential4WData::Enum)differential.Type;
differential4WData.mFrontRearSplit = differential.FrontRearSplit;
differential4WData.mFrontLeftRightSplit = differential.FrontLeftRightSplit;
differential4WData.mRearLeftRightSplit = differential.RearLeftRightSplit;
differential4WData.mCentreBias = differential.CentreBias;
differential4WData.mFrontBias = differential.FrontBias;
differential4WData.mRearBias = differential.RearBias;
driveSimData.setDiffData(differential4WData);
break;
}
}
}
void PhysicsBackend::SetVehicleGearbox(void* vehicle, const void* value)
{
auto drive = (PxVehicleDrive*)vehicle;
auto& gearbox = *(const WheeledVehicle::GearboxSettings*)value;
drive->mDriveDynData.setUseAutoGears(gearbox.AutoGear);
drive->mDriveDynData.setAutoBoxSwitchTime(Math::Max(gearbox.SwitchTime, 0.0f));
switch (drive->getVehicleType())
{
case PxVehicleTypes::eDRIVE4W:
{
auto drive4W = (PxVehicleDrive4W*)drive;
PxVehicleDriveSimData4W& driveSimData = drive4W->mDriveSimData;
// Gears
PxVehicleGearsData gears;
gears.mSwitchTime = Math::Max(gearbox.SwitchTime, 0.0f);
driveSimData.setGearsData(gears);
// Auto Box
PxVehicleAutoBoxData autoBox;
driveSimData.setAutoBoxData(autoBox);
// Clutch
PxVehicleClutchData clutch;
clutch.mStrength = M2ToCm2(gearbox.ClutchStrength);
driveSimData.setClutchData(clutch);
break;
}
case PxVehicleTypes::eDRIVENW:
{
auto drive4W = (PxVehicleDriveNW*)drive;
PxVehicleDriveSimDataNW& driveSimData = drive4W->mDriveSimData;
// Gears
PxVehicleGearsData gears;
gears.mSwitchTime = Math::Max(gearbox.SwitchTime, 0.0f);
driveSimData.setGearsData(gears);
// Auto Box
PxVehicleAutoBoxData autoBox;
driveSimData.setAutoBoxData(autoBox);
// Clutch
PxVehicleClutchData clutch;
clutch.mStrength = M2ToCm2(gearbox.ClutchStrength);
driveSimData.setClutchData(clutch);
break;
}
}
}
int32 PhysicsBackend::GetVehicleTargetGear(void* vehicle)