using UnityEngine;
  using System.Collections;
  
  public class MarbleControl : MonoBehaviour {
  
      public float movementSpeed = 6.0f;
          
          
          void Update () {
          Vector3 movement = (Input.GetAxis("Horizontal") * -Vector3.left * movementSpeed) + (Input.GetAxis("Vertical") * Vector3.forward *movementSpeed);
          rigidbody.AddForce(movement, ForceMode.Force);
          }
  
      void OnTriggerEnter  (Collider other  ) {
          if (other.tag == "Pickup")
          {
              MarbleGameManager.SP.FoundGem();
              Destroy(other.gameObject);
          }
          else
          {
              //Other collider.. See other.tag and other.name
          }        
      }
  
  }