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[MotorSim] adding back decel scale, which was missed from the rev limiter component. re-implementing directly on the physics sim component for control.

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#rnx
#rb trivial

[CL 27433642 by miles flanagan in ue5-main branch]
This commit is contained in:
miles flanagan
2023-08-28 21:16:41 -04:00
parent 608b81cc73
commit 268e9babfd
2 changed files with 7 additions and 2 deletions
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5
Engine/Plugins/Runtime/AudioMotorSim/Source/AudioMotorSimStandardComponents/Private/MotorPhysicsSimComponent.cpp
View File

@@ -22,13 +22,14 @@ void UMotorPhysicsSimComponent::Update(FAudioMotorSimInputContext& Input, FAudio
const int32 PrevGear = Gear;
const float ClutchModifier = Input.bClutchEngaged ? ClutchedForceModifier : 1.f;
const float ClutchDecelModifier = Input.bClutchEngaged ? FMath::Max(ClutchedDecelScale * (1.f - Throttle), 0.f) : 1.f;
//Forces in Newtons.
const float CurrentEngineTorque = EngineTorque * Throttle * GearRatio * ClutchModifier;
const float BrakingForce = Input.Brake * BrakingHorsePower;
const float WindResistance = WindResistancePerVelocity * FMath::Square(SpeedKmh);
const float FrictionResistance = Weight * GroundFriction * Input.SurfaceFrictionModifier;
const float FrictionResistance = Weight * GroundFriction * Input.SurfaceFrictionModifier * ClutchDecelModifier;
const float EngineResistance = CurrentEngineTorque * FMath::Max(Input.MotorFrictionModifier - Throttle, 0.0f) * EngineFriction;
const float NetForce = CurrentEngineTorque - BrakingForce - WindResistance - FrictionResistance - EngineResistance;

4
Engine/Plugins/Runtime/AudioMotorSim/Source/AudioMotorSimStandardComponents/Public/MotorPhysicsSimComponent.h
View File

@@ -46,6 +46,10 @@ public:
UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Resistance")
float ClutchedForceModifier = 1.f;
// how much more quickly the engine decelerates off-throttle while clutched
UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Resistance")
float ClutchedDecelScale = 1.f;
UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Resistance")
float EngineGearRatio = 50.f;