Wheelset.h

//  trax track library
//  AD 2014
//
//  "the resolution of all the fruitless searches"
//
//                              Peter Gabriel
//
// Copyright (c) 2025 Trend Redaktions- und Verlagsgesellschaft mbH
// Copyright (c) 2019 Marc-Michael Horstmann
//
// Permission is hereby granted to any person obtaining a copy of this software 
// and associated source code (the "Software"), to use, view, and study the 
// Software for personal or internal business purposes, subject to the following 
// conditions:
//
// 1. Redistribution, modification, sublicensing, or commercial use of the 
// Software is NOT permitted without prior written consent from the copyright 
// holder.
//
// 2. The Software is provided "AS IS", without warranty of any kind, express 
// or implied.
//
// 3. All copies of the Software must retain this license notice.
//
// For further information, please contact: horstmann.marc@trendverlag.de
 
#pragma once
 
#include "trax/Units.h"
 
#include "spat/Position2D.h"
 
namespace trax{

    struct Wheelset{
        Length Radius;                          
        Length Gauge;                           
        Length Flange;                          
        Length WheelWidth;                      
        Length AxleRadius;                      
        Mass TotalMass;                         
        spat::Position2D<Length> AxlePosition;  
        Angle Rotation;                         
        Length Shift;                           
 
        Torque MaxMotorTorque;                  
        Torque MaxBrakingTorque;                
        Torque FrictionTorque;                  
 
        Wheelset() noexcept
            :   Radius              {0.5_m},
                Gauge               {1.435_m},
                Flange              {3_cm},
                WheelWidth          {0.2_m},
                AxleRadius          {0.1_m},
                TotalMass           {1500_kg},
                AxlePosition        {0_m,0.5_m},
                Rotation            {0},
                Shift               {0_m},
                MaxMotorTorque      {0}, //(30000.0f * units_per_kilogram * Square(units_per_meter)),   //N*m
                MaxBrakingTorque    {0}, //(30000.0f * units_per_kilogram * Square(units_per_meter)),   //N*m
                FrictionTorque      {0}
        {}
 
        Wheelset(
            Length Radius,
            Length Gauge,
            Length Flange,
            Length WheelWidth,
            Length AxleRadius,
            Mass TotalMass,
            spat::Position2D<Length> AxlePosition,
            Angle Rotation,
            Length Shift,
 
            Torque MaxMotorTorque,
            Torque MaxBrakingTorque,
            Torque FrictionTorque ) noexcept
            :   Radius          {Radius},
                Gauge           {Gauge},
                Flange          {Flange},
                WheelWidth      {WheelWidth},
                AxleRadius      {AxleRadius},
                TotalMass       {TotalMass},
                AxlePosition    {AxlePosition},
                Rotation        {Rotation},
                Shift           {Shift},
                MaxMotorTorque  {MaxMotorTorque},
                MaxBrakingTorque{MaxBrakingTorque},
                FrictionTorque  {FrictionTorque}
        {}
 
        inline bool IsValid() const{
            return  Radius > 0_m &&
                    Gauge > 0_m &&
                    TotalMass > 0_kg;
        }
    };
}