void FixedUpdate()
{
if (Spline)
{
var v = Input.GetAxis("Vertical") * VSpeed;
var h = Input.GetAxis("Horizontal") * HSpeed;
Vector3 p;
// get nearest TF and point on spline
mTF = Spline.GetNearestPointTF(transform.localPosition, out p);
// apply forward thrust along spline direction (tangent)
if (v != 0)
{
mRigidBody.AddForce(Spline.GetTangentFast(mTF) * v, ForceMode.Force);
}
// apply side thrust to left/right from the spline's "forward" vector
if (h != 0)
{
Vector3 offset = Spline.GetExtrusionPointFast(mTF, 1, 90);
Vector3 hdir = p - offset;
mRigidBody.AddForce(hdir * h, ForceMode.Force);
}
if (Input.GetKeyDown(KeyCode.Space))
{
mRigidBody.AddForce(Vector3.up * JumpForce, ForceMode.Impulse);
}
// continously drag toward the spline to add some magic gravity
mRigidBody.AddForce((Spline.Interpolate(mTF) - transform.localPosition) * CenterDrag, ForceMode.VelocityChange);
}
}
