using UnityEngine;
  using System.Collections;
  
  public class Playermovement : MonoBehaviour
  {
      public float movementSpeed = 5.0f;
      private bool isGrounded = false;
  
      void Update() {
          rigidbody.velocity = new Vector3(0, rigidbody.velocity.y, 0); //Set X and Z velocity to 0
   
          transform.Translate(Input.GetAxis("Horizontal") * Time.deltaTime * movementSpeed, 0, 0);
  
          /*if (Input.GetButtonDown("Jump") && isGrounded)
          {
              Jump(); //Manual jumping
          }*/
          }
  
      void Jump()
      {
          if (!isGrounded) { return; }
          isGrounded = false;
          rigidbody.velocity = new Vector3(0, 0, 0);
          rigidbody.AddForce(new Vector3(0, 700, 0), ForceMode.Force);        
      }
  
      void FixedUpdate()
      {
          isGrounded = Physics.Raycast(transform.position, -Vector3.up, 1.0f);
          if (isGrounded)
          {
              Jump(); //Automatic jumping
          }
      }
         
  
  }