// ref: https://developer.nvidia.com/sites/default/files/akamai/physx/Docs/Vehicles.html#tuning-guide

/// PhysX part
simulation          = "tankX";
engineBrakeCoef     = 0.1;

torqueCurve[] = {
        {"(700/2640)" , 0},
        {"(1600/2640)", 0.92},
        {"(1800/2640)", 0.98},
        {"(1900/2640)", 1},
        {"(2000/2640)", 0.98},
        {"(2200/2640)", 0.96},
        {"(2400/2640)", 0.91},
        {"(4900/2640)", 0},
};
/*
torqueCurve[] = {  // TorqueCurve from MBT base in A3 Config (2640 seems to be redRPM, not sure where 2850 is coming from).

    {"(700/2640)",0},
    {"(1600/2640)","(2650/2850)"},
    {"(1800/2640)","(2800/2850)"},
    {"(1900/2640)","(2850/2850)"},
    {"(2000/2640)","(2800/2850)"},
    {"(2200/2640)","(2750/2850)"},
    {"(2400/2640)","(2600/2850)"},
    {"(4900/2640)","(0/2850)"}

    };
*/
//maxOmega = 251.33;
maxOmega = 251.33;
//enginePower = 195;
enginePower = 185;
// peakTorque = 2311;
peakTorque = 741.7;
maxGForce           = 2;
thrustDelay         = 0.1;      /// how much time does it take to get the full thrust (default 1), used to reduce initial wheel slipping
clutchStrength      = 50;
fuelCapacity        = 1885;
brakeIdleSpeed      = 1.78;     /// speed in m/s below which braking is applied
latency             = 1.4;
tankTurnForce       = 201710; /// Random magic number, expected to be something like 11 x mass of vehicle (was 101710 before guy played with it...)
normalSpeedForwardCoef = 0.52;
switchTime = 0.31;
dampersBumpCoef = 0.3;
changeGearMinEffectivity[] = {0.95, 0.15, 0.85, 0.95, 0.95, 0.95, 0.95};
maxSpeed  = 56;
engineBrakeCoef = 0.2;
overSpeedBrakeCoef = 0.8;
dampingRateFullThrottle = 0.08;
dampingRateZeroThrottleClutchEngaged = 2;
dampingRateZeroThrottleClutchDisengaged = 0.5;
wheelCircumference = 1.8;
/// Gearbox and transmission
idleRpm = 600; // RPM at which the engine idles.
redRpm = 2400; // RPM at which the engine redlines.

engineLosses = 25; // power losses on the engine's crank-shaft (before the gearbox) in Nm. (Multiplied by the gear ratio)
transmissionLosses = 15; // power losses on wheel axis (in/after the gearbox) in Nm. (Constant)


class complexGearbox {
    GearboxRatios[]    = {

                            "R1",-5.9,
                            "N",0,
                            "D1",5.9,
                            "D2",3.8,
                            "D3",2.75,
                            "D4",2,
                            "D5",1.23
                        };


    TransmissionRatios[] = {
                                "High",7
                            };

    gearBoxMode        = "auto"; //gearbox can be of type: full-auto (only requires 'W' or 'S'), auto (requires shift between drive and reverse), semi-auto, manual
    moveOffGear        = 1; // defines what gear an automatic or semi-automatic gearbox will move off from stationary in. 1 by default.
    driveString        = "D"; // string to display in the HUD for forward gears.
    neutralString      = "N"; // string to display in the HUD for neutral gear.
    reverseString      = "R"; // string to display in the HUD for reverse gears.
    transmissionDelay  = 1;

    gearUpMaxCoef = 0.9;
    gearUpMinCoef = 0.7;
    gearDownMaxCoef = 0.75;
    gearDownMinCoef = 0.7;
};
/// end of gearbox

numberPhysicalWheels = 12;

class Wheels {
    class L2 {
        boneName = "track_L1";
        center   = "wheel_1_2_axis";
        boundary = "wheel_1_2_bound";
        damping  = 75.0;
        // tanks do not have steerable wheels
        steering = false;
        /// We need to distinguish the side to apply the right thrust value
        side = "left";
        /// weight of the wheel is defined per wheel, it reduces overall mass of vehicle
        weight = 60;
        mass = 60;
        MOI = 20;       // Moment of Intertia (basically, momentum of wheel). lower = slower/less momentum
        latStiffX = 25;
        latStiffY = 480;
        longitudinalStiffnessPerUnitGravity = 100000;
        maxBrakeTorque = 10000;
        sprungMass = 2940.0;
        springStrength = 74500;
        springDamperRate = 9000;
        dampingRate = 1;
        dampingRateInAir = 2450.0;  // Basically, how quickly the wheel will come to a stop, this and MOI are the main factors to be tweaked
        dampingRateDamaged = 10.0;
        dampingRateDestroyed = 10000.0;
        maxDroop = 0.2;
        maxCompression = 0.2;
        frictionVsSlipGraph[] = {[0,5],[0.5,5],[1,5]};
    };
    class L3: L2 {
        boneName = "track_L2";
        center   = "wheel_1_3_axis";
        boundary = "wheel_1_3_bound";
    };
    class L4: L2 {
        boneName = "track_L3";
        center   = "wheel_1_4_axis";
        boundary = "wheel_1_4_bound";
    };
    class L5: L2 {
        boneName = "track_L4";
        center   = "wheel_1_5_axis";
        boundary = "wheel_1_5_bound";
    };
    // rear left wheel, usually Idler or Drive Sproket
    // Note, this wheel may not always be touching the ground, but we need it anyway!
    class L6: L2 {
        boneName = "track_L5";
        center   = "wheel_1_6_axis";
        boundary = "wheel_1_6_bound";
    };
    // front left wheel, usually Idler or Drive Sproket
    // Note, this wheel may not always be touching the ground, but we need it anyway!
    class L1: L2 {
        boneName = "wheel_Lrear";
        center   = "wheel_1_1_axis";
        boundary = "wheel_1_1_bound";
    };

    class R2: L2 {
        boneName = "track_R1";
        center   = "wheel_2_2_axis";
        boundary = "wheel_2_2_bound";
        side = "right";
    };
    class R3: R2 {
        boneName = "track_R2";
        center   = "wheel_2_3_axis";
        boundary = "wheel_2_3_bound";
    };
    class R4: R2 {
        boneName = "track_R3";
        center   = "wheel_2_4_axis";
        boundary = "wheel_2_4_bound";
    };
    class R5: R2 {
        boneName = "track_R4";
        center   = "wheel_2_5_axis";
        boundary = "wheel_2_5_bound";
    };
    // rear right wheel, usually Idler or Drive Sproket
    // Note, this wheel may not always be touching the ground, but we need it anyway!
    class R6: R2 {
        boneName = "track_R5";
        center   = "wheel_2_6_axis";
        boundary = "wheel_2_6_bound";
    };
    // front right wheel, usually Idler or Drive Sproket
    // Note, this wheel may not always be touching the ground, but we need it anyway!
    class R1: R2 {
        boneName = "wheel_Rrear";
        center   = "wheel_2_1_axis";
        boundary = "wheel_2_1_bound";
    };
};
/// End of PhysX