void FixedUpdate()
{
// Check if there is fuel remaining and stop engine if there is no more fuel to burn
if (0 >= fuelController.totalFuelRemaining())
{
engineRunning = false;
calculatedEngineSpeed = 0.0f;
}
// Compute engine speed
if (engineIsStarting)
{
calculatedEngineSpeed += 100 / timeForFullEngineSpeed * Time.fixedDeltaTime;
if (100 <= calculatedEngineSpeed)
{
calculatedEngineSpeed = 100;
engineIsStarting = false;
}
}
else if (engineRunning)
{
calculatedEngineSpeed = 100;
}
else
{
calculatedEngineSpeed = 0;
}
// Apply filter on engine speed
actualEngineSpeed = Mathf.Lerp(actualEngineSpeed, calculatedEngineSpeed, engineSpeedDamping * Time.fixedDeltaTime);
}
void Start()
{
// Find required components
rb = gameObject.GetComponent <Rigidbody>();
fuelController = GetComponent <FuelController>();
fcPhysicsController = GetComponent <FlightControlsPhysicsController>();
// Initialize rigidbody's parameters
rb.useGravity = true;
rb.isKinematic = false;
rb.drag = 0f;
rb.angularDrag = angularDrag;
rb.interpolation = interpolation;
rb.collisionDetectionMode = collisionDetection;
rb.constraints = RigidbodyConstraints.None;
float totalWeight = emptyWeight + pilotWeight + copilotWeight + cargoWeight + fuelController.totalFuelRemaining();
rb.mass = totalWeight / kilograms2pounds;
rb.inertiaTensor = inertiaTensor;
rb.inertiaTensorRotation = inertiaTensorRotation;
// Compute actual center of mass
computeCenterOfMass();
}
void computeCenterOfMass()
{
// empty + pilot + copilot + all fuel tanks + cargo
float totalWeight = emptyWeight + pilotWeight + copilotWeight + cargoWeight + fuelController.totalFuelRemaining();
rb.mass = totalWeight / kilograms2pounds;
Vector3 emptyCenterOfMassPos = transform.position;
if (null != emptyCenterOfMass)
{
emptyCenterOfMassPos = emptyCenterOfMass.position;
}
Vector3 pilotPos = transform.position;
if (null != pilotPosition)
{
pilotPos = pilotPosition.position;
}
Vector3 copilotPos = transform.position;
if (null != copilotPosition)
{
copilotPos = copilotPosition.position;
}
Vector3 cargoPos = transform.position;
if (null != cargoPosition)
{
cargoPos = cargoPosition.position;
}
// Actual center of mass is the average of all centers of mass
Vector3 centerOfMass = transform.InverseTransformPoint(emptyCenterOfMassPos) * emptyWeight;
centerOfMass += transform.InverseTransformPoint(pilotPos) * pilotWeight;
centerOfMass += transform.InverseTransformPoint(copilotPos) * copilotWeight;
centerOfMass += transform.InverseTransformPoint(cargoPos) * cargoWeight;
foreach (HelicopterSetup.fuelTank tank in fuelController.fuelTanks)
{
centerOfMass += transform.InverseTransformPoint(tank.fuelTankPosition.position) * tank.fuelQuantity;
}
centerOfMass /= totalWeight;
rb.centerOfMass = centerOfMass;
}