Unity 5 Player Control Movement, camera (3rd prs following) jump + gravity

Hello i have been following a youtube game dev tutorial:

ETeeskiTutorials #3.2 More Basic Movement - Coding Games Easy - [ Ultimate GameDev Tutorials ] #3.3 Jump and Gravity - Unity C# Basic Code - [ Ultimate GameDev Tutorials ] Link: https://www.youtube.com/watch?v=GX6ds70k9XQ

And i had some problems because he is using unity4 and i am trying to learn Unity5.3 1. I made a PlayerScript for movement and it worked. 2. added camera following it worked to. 3. then i added so when i use "a" or "d" (left or right) the player turns and the camera follows. 4. so now i needed to add jump and gravity... no nothing works and im kinda lost...

Can anyone pleace help a new game dev :)

Best Regards 2mmy

My PlayerScript:

using UnityEngine; using System.Collections;

public class PlayerScript : MonoBehaviour {

 CharacterController controller;

 Vector3 Move;

 public float moveSpeed = 100;



 public float rotateSpeed = 180;
 Vector3 currentMovement;
 public float JumpSpeed = 20;
 public float Gravity = 9.8f;


 void Start()
 {
     controller = GetComponent<CharacterController>();
 }


 void Update()
 {


     currentMovement = new Vector3(0, currentMovement.y, Input.GetAxis("Vertical") * moveSpeed);
     currentMovement = transform.rotation * currentMovement;

     if (!controller.isGrounded) 
         currentMovement -= new Vector3(0, Gravity * Time.deltaTime, 0);
     else
         currentMovement.y = 0;

     if (controller.isGrounded)   


    transform.Rotate(0, Input.GetAxis("Horizontal") * rotateSpeed * Time.deltaTime, 0);






     controller.Move(currentMovement * Time.deltaTime);
 }

}