propulsion.h

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#pragma once

#include <WinSock2.h>
#include <WS2tcpip.h>
#include <Windows.h>
#include "DXUT.h"

#include "../Logger.h"
#include "globals.h"
#include "../Bus.h"

class Viewscreen;

#define MaxCLDelta 0.800f
#define MaxCDDelta 0.060f

/*
 * Space Shuttle had a 2.5x rise in drag for 6.75 seconds ... that is a rise of 61.594 m/s over 6.75 seconds at 1g over gravity
 * Tangent .625 from Paint Shop Pro freehand selection (32 degrees) on space shuttle design means that we would sin(32)x = 2.5 which is
 * 4.7177x the angle that the shock cone makes ... 0 is 0, 90 is 4.7177
 */
#define maxDragIncreaseApproachingMachC 3.7177f // 4.7177 minus 1 which is the default


class propulsion
{
        enum AirfoilType
        {
                Asymm = 1,
                Symm = 2
        };

        Viewscreen* viewscreen;
        Logger* logger;

        float gndcontactG, halfsec;
        float oldmsl, oldagl;
        PlotType ambtype1;
        char ambtype2;
        float oldvol;
        int chip;
        float tach;
        D3DXVECTOR3 actual;
        bool trendup; // on the way up or down
        float intensity; // from 0 to 1 then back to 0
        D3DXVECTOR3 windgust;
        float olddesiredvsi;
        float oldpitch;
        float oldcorrection;
        float rougfric;
        float f_netupdate;
        char discordHeartbeat = 0;

        float ThrustReverserOutput[MAX_ENGINES];
        float EngineThrustOutput[MAX_ENGINES];


        D3DXVECTOR3 oldOdoPosition; // for odometer
        char oldOdoReference; // for odometer

        char msg[160];

        D3DXVECTOR3 localvel = centerC;
        D3DXVECTOR3 windVectorTrueKms = centerC;
        D3DXVECTOR3 relativeWindTrueKms = centerC;

        static void GetFrictionCoefficients(unsigned char type, float* rollingResistance, float* roughness);
        static float CalculateLiftCoefficient(AirfoilType type, float aoaRad, float CLDelta);
        static float CalculateDragCoefficient(AirfoilType type, float aoa, float CDDelta);

public:
        bool initFromDeflect = false;
        float totalWeightLbs = 0.0f;
        float speedOfSoundKms = 0.343f;
        float staticBuildup = 0.0f; // st. elmo fire
        float airframeTempCelsius = -273.15f;
        float iceAccumulationMm = 0;
        float mach = 0.0f;
        float tatCelsius = 0.0f;
        float qz = 0.0f;
        float convectionRate = 0.0f;
        float tat_mod_qz_x = 0.0f;
        float pitchAccelerationSnapshot = 0.0f, yawAccelerationSnapshot = 0.0f, rollAccelerationSnapshot = 0.0f; // snapshot means in a frame already adjusted for elapsedTime
        float staticDensity = 1.0f; // used for sounds arriving from other vehicles, weapons, thunder
        float dynamicDensity = 1.0f; // used for airfoils and wind noise

        propulsion(Viewscreen* ptr);
        void Update(float fElapsedTime);
        float GetTach() const;
        void Reset();
        float GetTotalThrust() const;
};