Align Sphere and Blobshadow to Ground?

Hi! I am currently working on a tilt/maze Game. the platform movement code comes from this post:http://answers.unity3d.com/questions/1029970/tilting-platform-question.html

and it looks currently like this:


as you can see, i have 2 problems:

• the blob shadow is not moving with the platform and disappears sometimes under the platform
• and the Ball/Sphere also does not stick to the Ground and sometimes flies in the air

the blob shadow script looks like this:

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3. public class BallFollow : MonoBehaviour {
4.    
5.      Transform bar;
6.    
7.      void Start() {
8.          bar = GameObject.Find("Ball").transform;
9.      }
10.    
11.      void Update() {
12.          transform.position = new Vector3(bar.position.x, transform.position.y, bar.position.z);
13.      }
14. }
15.  

so it just copies the position of the ball, but somehow has also needs to copy the rotation of the platform?

and then, the ball movement script looks like this:

Code (CSharp):

1. sing UnityEngine;
2. using System.Collections;
3. namespace qtools.qmaze.example
4. {
5.      public class QBallController : MonoBehaviour
6.      {
7.          public float moveScaleX = 1.0f;
8.          public float moveScaleY = 1.0f;
9.          public float moveMaxSpeed = 1.0f;
10.          public float moveLerp = 0.9f;
11.        
12.          private Rigidbody rigidBody;
13.        
14.          void Start ()
15.          {
16.              rigidBody = GetComponent<Rigidbody>();
17.          }
18.        
19.          void Update ()
20.          {
21.              Vector3 velocity = (Vector3.forward   * Input.GetAxis("Horizontal") * moveScaleX);
22.              velocity+= (Vector3.left * Input.GetAxis("Vertical")   * moveScaleY);
23.              velocity = Vector3.ClampMagnitude(velocity, moveMaxSpeed);
24.              velocity *= moveLerp;
25.              rigidBody.velocity = velocity;  
26.          }
27.      }
28. }
29.  

normally it would be enough to give the ball a rigidbody and control the ball by tilting the platform he is lying on.
but, i used this ball script because if i wouldn't , the ball would move to slowly over the platform. so i am controlling the platform AND the Ball. but i need a way to let the ball stick to the platform. the rigidbody settings of the ball are: mass:1 - drag:0 - angular Drag: 0.7 and the physic settings are untouched.

Thanks for your help upfront!

 

Sorry if I missed something, but couldn't you use the in-built lighting system - a directional light for example - to create the shadow on the ball?

 

the scene will be a little bit more complex* in the end, so the performance would be pretty bad for mobile if i would use realtime shadows

*like this:

 

Cast a ray from the ball down to the platform, and use the hit's distance to position the blob shadow on the Y axis.

Also, might I recommend renaming the "bar" variable to "ball".