Faux Gravity + multiple objects affected doubt

Unity Engine
1

Hi.

I did a Faux Gravity script based on Faux Gravity Topic.

using UnityEngine;
using System.Collections;

[RequireComponent(typeof(Rigidbody))]
public class SphereGravity : MonoBehaviour {
#region variables
  public float GravityRange = 10f;  // the range of the gravity affect
  public float gravityFaux  = 10f; // the force of the gravity effect
  
  private RaycastHit[] HitObjects; // objects in the gravity range
#endregion
#region methods
  void Start() {
    rigidbody.constraints = RigidbodyConstraints.FreezeAll;
  }
	void FixedUpdate () {
    // get all the objects in the range of the gravity field
	  HitObjects = Physics.SphereCastAll(transform.position, GravityRange, Vector3.up);
    // for each object that it is inside the range
    foreach (RaycastHit hit in HitObjects) {
      if (hit.transform.name != "Planet") {
        float Distance = Vector3.Distance(transform.position, hit.transform.position);
        
        // get the diference of relative gravity pull
        Vector3 attractDirection = transform.position - hit.transform.position;
        attractDirection.Normalize();
        
        // now we push the object
        hit.rigidbody.AddForce(attractDirection * (gravityFaux / Distance) * hit.rigidbody.mass);
      }
    }
	}
  void OnCollisionEnter(Collision c) {
  }
#endregion
}

So far it detect my “Bike” GameObject children. What i mean:
i have a Bike GameObject which have 3 other objects (child):

  • Body
  • Front Wheel
  • Back Wheel

Here my doubt:
How to make the Rigidbody on each object in child affect the parent position? So far my script use AddForce to make a rigidbody goes to the center of my “Planet” (is how i call the terrain)

I would like to each object work with your own rigidbody, so I guess this could make an interesting gravity effect to the whole object.
here a picture of my bike:
1359144--67554--$Whole_Bike.jpg

2

up!

Here: rawbots this is a excelent example to see how i want to each object in scene must be affected by gravity. Each object is affected by gravity independently, but to work with them as a group i would to create a joint between them?

best regards,
PJRM