public bool CalculateNewCourseAndSpeed(Vector powerVector, double dt, double massKG)
{
double accn = 0.0;
//calculate the acceleration
if (PhysicsMaths.CalculateAcceleration(powerVector.Magnitude, massKG, out accn))
{
Vector accnVector = new Vector();
accnVector.Magnitude = accn * dt / 1000.0;
accnVector.DirectionRads = powerVector.DirectionRads;
Debug.WriteLine("accn = " + accn.ToString());
Vector currentVector = new Vector();
currentVector.Magnitude = base.SpeedMS;
currentVector.DirectionRads = base.TravelDirectionRads;
Vector newMovementVector = Vector.AddVectors(currentVector, accnVector);
base.SpeedMS = newMovementVector.Magnitude;
base.TravelDirectionRads = newMovementVector.DirectionRads;
return(true);
}
return(false);
}
public override bool Move(double dt)
{
Debug.WriteLine("dt = " + dt.ToString());
// currently just doing forward motion
double forwardPropulsionForce;
double rotationalTorque;
if (CalculateForceAndTorque(dt, out forwardPropulsionForce, out rotationalTorque) == false)
{
return(false);
}
double I;
if (PhysicsMaths.CalculateMomentOfInertia(DISK_INERTIA_CONSTANT, ROCKET_MASS_KG, ROCKET_RADIUS, out I) == false)
{
return(false);
}
Debug.WriteLine("forwardPropulsionForce = " + forwardPropulsionForce.ToString());
Debug.WriteLine("rotationalTorque = " + rotationalTorque.ToString());
double rotationalFriction;
if (PhysicsMaths.CalculateRotationalFrictionTorqueOfDisc(ROCKET_RADIUS, ROCKET_HEIGHT, RateOfRotationRadsSec, AIR_DENSITY, out rotationalFriction) == false)
{
return(false);
}
Debug.WriteLine("rotationalFriction = " + rotationalFriction.ToString());
Debug.WriteLine("RateOfRotationRadsSec = " + RateOfRotationRadsSec.ToString());
rotationalTorque = rotationalTorque - rotationalFriction;
double rotAccn;
if (PhysicsMaths.CalculateRotationalAcceleration(rotationalTorque, I, out rotAccn) == false)
{
return(false);
}
// calc rate of rotation
RateOfRotationRadsSec += rotAccn;
// calc new heading
HeadingRads = MovementAssist.RotateHeadingRadians(RateOfRotationRadsSec, HeadingRads, dt);
double friction = 0.0;
double resultantForce = 0.0;
if (PhysicsMaths.CalculateFriction(SpeedMS, CROSS_SECTION, Cd, AIR_DENSITY, out friction))
{
Vector powerAndFrictionVector;
Debug.WriteLine("HeadingRads = " + HeadingRads.ToString());
Debug.WriteLine(" TravelDirectionRads = " + TravelDirectionRads.ToString());
// calculate the resultant force acting on the
if (CalculateResultantForceVector(HeadingRads, forwardPropulsionForce, TravelDirectionRads + Math.PI, friction, out powerAndFrictionVector) == false)
{
return(false);
}
Debug.WriteLine("powerAndFrictionVector.Magnitude = " + powerAndFrictionVector.Magnitude.ToString());
if (CalculateNewCourseAndSpeed(powerAndFrictionVector, dt, ROCKET_MASS_KG) == false)
{
return(false);
}
}
Debug.WriteLine("SpeedMS = " + SpeedMS.ToString());
return(base.Move(dt));
}