Unity3D：轨道脚本-如何控制起始位置/轨道

Question

我有一个轨道脚本来控制围绕行星运行的gameObject。它的轨道运转良好（很少起伏。）但是如何控制其起始位置和轨道呢？例如，具有特定起始位置的随机轨道（反之亦然），随机轨道和随机起始点等。

我只想通过了解向量就能控制轨道。

public GameObject orbitAroundTarget;
private Transform centerOfOrbit;
public Vector3 orbitAxis = Vector3.up;
public Vector3 desiredOrbitPosition;
public float orbitRadius = 100f;
public float orbitAdjustSpeed = 10f;
public float orbitSpeed = 2f;

void OnEnable()
{
    centerOfOrbit = orbitAroundTarget.transform;
    transform.position = (transform.position - centerOfOrbit.position).normalized * orbitRadius + centerOfOrbit.position;
}

void FixedUpdate()
{
    transform.RotateAround(centerOfOrbit.position, orbitAxis, orbitSpeed * Time.deltaTime);
    desiredOrbitPosition = (transform.position - centerOfOrbit.position).normalized * orbitRadius + centerOfOrbit.position;
    transform.position = Vector3.MoveTowards(transform.position, desiredOrbitPosition, Time.deltaTime * orbitAdjustSpeed);
}