TireSystem.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "VehicleSystemTemplate.h"
#include "VehicleUtility.h"
 
#if VEHICLE_DEBUGGING_ENABLED
UE_DISABLE_OPTIMIZATION
#endif
 
 
namespace Chaos
{
    struct FSimpleTireConfig
    {
        // Tires are normally specified as 192/55R15
        FSimpleTireConfig()
            : Radius(594.f / 2.f / 1000.0f)
            , Width(195.f / 1000.0f)
            , Depth(107.f / 1000.0f)
            , StaticFrictionCoefficient(0.5f)
            , KineticFrictionCoefficient(StaticFrictionCoefficient * 0.7f)
            , InitialTirePressure(0.f)
            , InitialTireWear(0.f)
        {
 
        }
 
        float Radius;
        float Width;
        float Depth;
 
        float StaticFrictionCoefficient;
        float KineticFrictionCoefficient;
        float InitialTirePressure;
        float InitialTireWear;
 
    };
 
    class FSimpleTireSim : public TVehicleSystem<FSimpleTireConfig>
    {
    public:
        FSimpleTireSim(const FSimpleTireConfig* SetupIn) 
            : TVehicleSystem<FSimpleTireConfig>(SetupIn)
            , TirePressure(0.f)
            , TireTemperature(0.f)
            , TireWear(0.f)
        {
        }
 
    private:
 
        float TirePressure;
        float TireTemperature;
        float TireWear;         // [0 no wear, 1 fully worn]
 
    };
 
} // namespace Chaos
 
#if VEHICLE_DEBUGGING_ENABLED
UE_ENABLE_OPTIMIZATION
#endif